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					                                                                                              NASA
                                                                            Moderator: Anita Sohus
                                                                    February 24, 2004/1:00 p.m. CST
                                                                                              Page 1




                                             NASA

                                       February 24, 2004
                                         1:00 p.m. CST



Abstract
   1. How to make your own 3-D images (JPL) http://www.jpl.nasa.gov/news/features/3d.cfm
   2. University of Nebraska 3-D images http://www.spacelaser.com/mer3d/ (non-public)
   3. RATted rocks may be available for loan
   4. Other missions—including Cassini--looking to join the energy of this group.

Coordinator This is the conference coordinator. I would like to inform all participants that
today’s conference is being recorded. If anyone has any objections, you may disconnect at this
time. Ms. Sohus, you may begin.

Anita Hello. For those of you who are new, we do record the call, so that we can get a
transcript done, which we then provide on the Listserve and also on the MUSE Web site.

I believe, Eric, that the press conference has been moved to Thursday (2/26). Is that correct?

Eric Yes. Like many things in MER, we have to be flexible to stay with what we’re doing.
Press conferences are now until further notice and the notice was given at the last press
conference at the last minute at the end of the press conference, so it was moved from
Wednesday to Thursday; but it appears that it will stay on Thursday until they change their mind
again. It is 10:00 a.m. Pacific Standard Time.

Anita You said last time, that they were going to start doing themes. Do you know if that’s
what they’re going to do this week?

Eric   No, I said last time that they would like to do themes, but they have no theme.

Anita I suppose you can’t give us a hint of what they’re going to talk about Thursday.

Eric   No, that’s correct.
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                                                                               Moderator: Anita Sohus
                                                                       February 24, 2004/1:00 p.m. CST
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One other point of information, we have editorial boards that meet before the press conference,
like usual, and those happen at 7:00 a.m. Of course, the images are due at 6:00 a.m., but usually
don’t come until 7:00 a.m. or 8:00 a.m., or even 9:00 a.m. That’s why it’s hard to give you a
topic, actually; but we’re also holding virtual editorial boards every day of the week at 8:00 a.m.
our time even on days when there is no press conference.

On those days, it includes Guy Webster (media rep) and myself, Joy Crisp the project scientist,
various members of the science team, members of the outreach team. We try to select images
from the candidates that people put in every day. Also, there’s an attempt to put captions
together that go with those images, so that’s happening literally everyday. We had one this
morning.

Anita I’ve handed Eric some of the questions you guys have e-mailed because it’s one of the
few times I get to see Eric and he’s standing still. One question that keeps coming up is stereo
pairs. Are those still in the process and not available yet?

Eric   I don’t understand the question.

Anita Are there stereo pairs available yet?

Eric   There are lots of stereo pairs available and there always have been.

Anita If people are finding left/right images, that’s a stereo pair.

Eric Yes, that’s a pair. Images that are taken together, or in close proximity at the same time,
are stereo pairs. There are lots and lots of those.

Anita That’s what people have been making the anaglyphs out of.

Eric   Thousands and thousands.

Anita Okay, so they can just get those off of the Mars rovers MUSE or Photojournal sites.

Eric Yes, the full frames, there’s a left and right pair, and we’ve even put on our Web site
indications for how you can easily make your own stereo pairs, a tutorial. It’s on the Mars rovers
Web site.

Anita Is that the one that was on the NASA page about how to make your own 3D images by
Zareh? http://www.jpl.nasa.gov/news/features/3d.cfm

Eric   Yes, Zareh Gorjian, who is a member of our team, actually helped write that.
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                                                                             Moderator: Anita Sohus
                                                                     February 24, 2004/1:00 p.m. CST
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Anita There are some people using some shareware, freeware, to do that kind of stuff, too, but I
don’t know how the quality compares. Do you have any experience with those?

Eric Any product that allows you to register image pairs together side by side, so you can
actually change the inner-ocular, would also be a good product; but you mostly need to be able to
have two layers. If you’ll take one of them, say the left image, and put it into one layer and then
put that on the left; and then you can make that be your red image, and put the second one into a
layer on the right and put it as the blue/green image. Anything that allows you do to that and to
make the adjustments, so that you can slide the layers to vary the distance between them, which
effectively changes the inter-ocular would also be a great product for doing that.

Anita Yes, I’ve had several people saying they’re doing educational activities with these now.

Eric There’s probably a large number of products that allow you to operate on images in
layers, but if you really want to do this easily, the ability to handle layers is the key.

Anita One of the other questions that comes fairly often is 360-color high res pan for the
landing sites.

Eric   Yes, we’re all patiently awaiting those.

Anita Okay. Another question that came up was about the PanCam itself, there’s some
vignetting and they wondered if it was a zoom lens, which it is not, right?

Eric No, it’s not a zoom lens. It definitely has a limited depth of field, as do all the cameras.
The microscopic imager is the one that has the most limited depth of field, but all of the cameras
have a limit on how much of a depth of field. There actually is a great depth of field. We can
image things that were a few feet away from us and we could see things on the walls in the
chambers and they were very clear. It has a remarkably large depth of field, frankly, but no
matter what camera you have, they all have depths of field.

Anita Yes, I think that’s something that folks are getting a lot of questions about, so they’re
going to be trying to help kids understand that kind of stuff.

Eric Yes. Take any digital camera and you can see the same effect. At a fixed focus, point at
something at a given distance and focus on that, and then things near or farther will be less in
focus. Depth of field will measure how large that distance you can travel to keep things in
relatively good focus.

There are things like microscopes that are the worst. If you want to get the best example of the
worst depth of focus, put them on a microscope and show them how they can only look at things
at a certain depth; and you move it just a little bit, you get a totally different depth.
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                                                                                Moderator: Anita Sohus
                                                                        February 24, 2004/1:00 p.m. CST
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Anita Is that why I kept cracking slides when I was in school?

Eric    Yes, that will happen, the attempt to get everything in focus.

Anita Is there still a problem knowing how far something is? Have you guys pretty much
figured that out, the distances or is it still a surprise sometimes, if something is nearer or farther
than you thought?

Eric I don’t think there are many surprises. The question is whether we have range or not for
different things; but once we have a stereo pair, it’s actually pretty straightforward since we have
a good camera model to figure out what the distance of an object is, and so that works pretty
well. Of course, the farther away you are from the camera system, the less information you have
at that distance, because we’re really using disparity, the difference in the two images, to allow
us to determine how far away something is. Closer things, we know with more accuracy. It’s
really not a problem.

Anita Anybody out there this morning have anything they want to talk about? I have a couple
of things, but I want to give you guys a chance first.

Steve This is Steve in Denver. While we’re in question and answer, I just had one of our
volunteers this morning, who used to work at Rocky Flats building nuclear weapons. He was
looking at the APXS graph that was released on SOL 14, I think, their measurement of the soil,
and it’s got a very distinct line on it that is labeled, “plutonium.” He was saying how can there
be plutonium on Mars, since it’s a trans uranium element and manmade. Does anybody have any
ideas about that?

Eric    SOL 14 on which, Opportunity or Spirit?

Steve On Spirit.

Eric My memory of over 35 days ago is not as good as you might imagine. With something
like RDRs, I think, the latest number was 75,000 products produced, so I can’t pull into my head
immediately that exact plot from APXS; and I don’t remember seeing plutonium on the ones I
was paying attention to. I don’t doubt that if you say it’s there, I guess –

Steve Yes, I’m looking at it right now off the Web site and it’s got a thing labeled “scatter,” and
then “plutonium,” and then “zirconium.” It’s all off on the right-hand side of the high-energy
stuff. http://muse.jpl.nasa.gov/mergallery/pressspirit/20040120a/APXS_Soil_Sol-14_p1-
A17R1_br2.jpg
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                                                                             Moderator: Anita Sohus
                                                                     February 24, 2004/1:00 p.m. CST
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Eric Spirit, right. Thank you. Is there a difference between things observed on Mars versus
referenced elements on Earth? In other words, does the legend indicate?

Steve It has asterisks on these things that say, “Asterisk equals background,” and this is one of
the ones that does have an asterisk.

Eric Many of those plots, we will have, of course, the comparison between what we’ve
observed with APXS or Moessbauer and have a reference spectra from Earth observations.

It seems to me there are three possibilities here. One is it’s a reference spectrum from Earth.
Two is that the source, the proton source material itself has – again, I’m not looking at it, so I
don’t really have the answer to that. I think probably the real best source is to talk to the German
team that is operating the APXS directly. I think it would be best to talk directly to them. It’s an
interesting question, certainly, and those guys don’t get quite as many questions as some of the
other groups; so I think they might be interested in communicating with you on this.

Steve Okay.

Eric Great. Yes, I think that would help them. I think they’re really the best ones to answer
the question, anyway. I didn’t participate in their calibration either, so I don’t quite have the
information necessary to answer …

Steve Right. It’s a totally different beast than the things we normally deal with, I think.

Eric   Yes, exactly, but it’s a good question.

[Anita spoke to German APXS team members on 2/27: the APXS alpha particle source is
Curium 244, which decays into plutonium. “The Athena Alpha Particle X-ray Spectrometer
works by exposing martian materials to energetic alpha particles and x rays from a radioactive
244Cm source, and then measuring the energy spectra of backscattered alphas and emitted x rays.

http://athena.cornell.edu/the_mission/ins_apxs.html]

Anita Yes. Other questions or comments out there?

Jack I was just going to say – Jack, out in Lincoln – if you got the URL for 3D stuff, go use it
however you want. That’s my comment.

Anita Thank you, Jack, so much for sharing all of that stuff. http://www.spacelaser.com/mer3d/

Eric Yes, thanks a lot. We really appreciate you putting all those together. There are lots and
lots of 3D opportunities here and it’s nice for someone – for you – to put these things together, so
everybody can take a look at them.
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                                                                                Moderator: Anita Sohus
                                                                        February 24, 2004/1:00 p.m. CST
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Jack We figured that you’d have a few other things on your mind, like keeping this thing
working.

Eric   Thank you much.

Anita Besides, you guys are having fun, right?

Jack   It’s fun at a certain plane and then your eyes start crossing.

Anita Are you using those on your dome?

Jack We use them on the dome in every show because we do a live segment with a talk, a
current update. Whatever you can get up there is always better.

Anita That is great. We really appreciate it.

Shawn Anita, this is Shawn in North Carolina. Were you going to discuss some of the questions
you sent on the e-mail, announcing this telecon, the ones regarding forming a group for comets
and asteroids and other ways of doing more of this type of stuff? Were you planning on
discussing that today at all?

Anita Yes, I wanted to get into that. I was going to give people a chance to finish mostly with
Mars business first. Eric has now looked at that chart.

Eric Yes, thank you for bringing up that question. I read the caption and looked at the chart;
and although, I really don’t know what the asterisk means when it says, “background,” it does
look like that wasn’t a reference spectra. Those actually were elements that they were indicating
were in the soil and so, the question is very interesting. I actually would be personally interested
in the answer to that question myself.

Steve If I find anything, I will let you know at the next teleconference.

Eric   Thank you.

Anita Or if we find something in the meantime, we’ll maybe get an e-mail response out to you
from the team itself.

Steve That would be great.

Anita Next week, if the educator folks can be online, I think it would be really great. Sheri
Klug has promised that she will be online with us. She is the lead educator for the Mars
                                                                                               NASA
                                                                             Moderator: Anita Sohus
                                                                     February 24, 2004/1:00 p.m. CST
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Exploration Program and head of ASU’s Mars Education program. I just wanted to cook a little
bit on how you guys are using the Mars information in your education events and activities and
what’s missing, what you might need that we collectively could generate. I know I had a request
the other day for a PowerPoint for elementary school kids, which I think would be a lot of fun to
do; but I shot back, “What would be the focus? What would be the emphasis? Help us out a
little bit and we’ll see what we can create.” That will be next week.

I also wanted to remind you that February 26th is the “Woman Working on Mars Engineers
Week” Web cast. I believe it’s 4:00 p.m. PST. I know that doesn’t work for a lot of you on the
East Coast, but maybe it will work for Hawaii. That will be archived online and if you have any
video tapes of students at your facilities, asking a question of our folks, please send them to
Steph Lievense, FedEx because time is short now.

On this coming Saturday, the ASU Mars program is going to have an educational workshop. In
the e-mail, I gave you the URL for their flier, but Sherry told me yesterday, that they are going to
be able to be streaming that through the graciousness of Apple. She is going to get me that
information, hopefully, today, so I can get that out to anybody who would like to tune into that.
The flier says it’s pretty much an all day affair, so I don’t know if they’re going to streaming all
day or what, but it sounds like it would be a neat opportunity.

Do we have any other Mars things to talk about or could we segue into what future things we
might do with other missions?

Jack A quick question was the one that my volunteer had, the one that was on the MER
system. Is that a zoom lens up there on the Pan camera on the Hazard or do they zoom by just
enlarging and just taking one particular section of a picture?

Eric Yes, they’re a fixed set of optics. They don’t have any zoom capability. The way in
which we get closer images is by driving closer to the particular target.

Jack I meant in the past where they had released some pictures that said, “These are just the
horizon,” and I assumed that was just, “We just cropped to just that.”

Eric   I’m sorry, could you repeat that?

Jack I remember a picture of the hills on the horizon and basically, what I assumed was that
they were just taking and cropping, were just going to focus on that. In other words, it wasn’t a
zoom. It was just, “Let’s take this part of an image and we’ll blow that up.”

Eric Yes, there are probably two places where it could have gotten confusing. One is we do a
digital zoom into a piece of the original image. The original image is taken with a fixed set of
optics without a zoom; but then because that may have a lot more pixels than can show on any
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                                                                                Moderator: Anita Sohus
                                                                        February 24, 2004/1:00 p.m. CST
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screen, for example, if a postcard has 4,000 by 3,000 pixels and even on an AC screen, you can’t
see that; we have in press conferences, zoomed in for context and we’ve done that. That’s just
like a digital zoom when you’ve got a fixed camera and you’ve taken a picture in it, you can
zoom into that part of it.

Jack But it’s fixed focal. That tells us what we need to know. In playing with the anaglyphs,
we wanted to make sure that you didn’t have to compensate for optics.

Eric Right. No, and you don’t. One other thing just to be aware of is again, full frames, you
can just treat them all the same and even a sub-frame, those are at full resolution; but down
samples are at a different resolution, so they’ve been down sampled. Those are the only ones to
watch out for because it is down sampled before it’s sent to us; but otherwise, you have fixed
optics. Very good.

Ryan This is Ryan in New York. I was just curious if we’re going to talk at all about the SVG
Viewer, the panoramic viewer. I looked for updates. The software doesn’t seem to have been
updated since it was first posted.

Eric That’s correct. It has not been updated. We’ve deferred that update to coincide with a
second update that we’re doing. Rich, maybe you can talk just a little bit about that; but the idea,
again, was that we have so many images that we’re getting, not just in terms of the images you’re
having to deal with, but the images that we’re having to deal with on the science team and so,
we’re breaking them down. Already, we have typed like full frame, but we’re actually
subdividing them into groups of SOLs, so that we won’t run out of number of names within a
directory.

I think you’ll find that subdivision quite useful, also, if you want to just look at the latest images.
They will all be within the latest group of SOLs and so you won’t have 5,000 images to go
through, just to get the latest one. We’re doing that both internally for the science team and as
we’ve done in the past, we’re mirroring that with you, as well. You’ll have the same
subdivisions that we’re using in the science team, and it’ll make it easier to discuss and easier to
handle. When we do that, that’s when we’re going to update the SVG Viewers at the same time.
That’s our plan.

Ryan Do you have an estimated timeline?

Eric   I’ll let Rich answer that one.

Rich Estimated timeline. Let’s say, hopefully, this week. I’ve been focusing most of my
attention on the science team, unfortunately.

Ryan Great.
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                                                                           Moderator: Anita Sohus
                                                                   February 24, 2004/1:00 p.m. CST
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Eric That’s not unfortunate. We need him to make sure the science team is happy with it, so
that we don’t put something out to you guys and then they change their minds. We need to have
firm confirmation that the science team is happy with the subdivision, so that we don’t have to
iterate several times.

Rich   Yes.

Eric   Thank you. That was the right thing to do.

Anita Does that answer your question, Ryan?

Ryan Yes.

Anita You also had a question about Mimi, which I didn’t find someone to answer that for you.
Do you remember that question?

Ryan I asked a question about Mimi, yes, quite some time ago. It’s not particularly relevant
now, but thank you.

Anita Sorry.

Eric   Anita tries to remember all questions.

Anita I can’t answer most of them, but I try to get Eric to answer them.

Ryan I appreciate that.

Eric The Adler question that asked, “Can we honestly say, as far as we know, we are the first
institution to put raw data together to make and display color stereo images from Mars?” No.
There are many people doing that and all in parallel, including people on the team and including
all of the institutions that participate with the team and probably many other people, as well.
You’re among some of the first doing it, but there are a lot of people doing that in parallel.

Rich   There was a private guy out there who was doing it the night of the landing.

Eric Yes, people have been doing it quite a bit and almost immediately, but I still encourage
you to keep doing it. Thank you.

Anita The PR departments like to be the first.

Eric   I know. First doing it at Adler.
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                                                                              Moderator: Anita Sohus
                                                                      February 24, 2004/1:00 p.m. CST
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Anita On a GeoWall, too, it might be a first. I don’t know.

Eric   No, we’re doing it on Geo Wall here, too. Sorry. We’ve got a GeoWall here.

Anita Does it have Mars stuff on it that we can show people?

Eric   We gave them Mars stuff. I haven’t been able to look at it myself, but they have it.

Anita Could we segue into some of the questions I asked in the e-mail? The other missions
would really like to be able to have the same energy out there for them, as far as the results are
getting back and sharing those with the public. What I worry about is that we could totally
immerse you guys or saturate you, as far as your ability to receive the information and do
anything with it.

M      We’ll deal with that problem.

Anita You’ll deal with it, okay.

Eric   Would you be happy to deal with that problem?

M      Yes.

Anita Shawn, since you brought it up, maybe you have some things you’d like to start with.

Shawn Not really. I just find all the information quite valuable and getting it this quickly is
really unique for a facility, such as ours. We’ve gotten good publicity from it from local media
and that for us is tremendous.

Anita Would you like a similar type of setup for each mission or would you like some kind of
grouped?

Shawn The thing I use most is the dedicated Web page. That’s valuable because you know you
can get information that is hard to get otherwise and in a timely manner. We don’t really use the
streaming information because we’re not set up for that, but having it … is great. I like the
dedicated Web sites to be able access and I love these teleconferences. They’re excellent.

Shawn Dedicated Web sites and telecons.

Rich: How about the List Serve?
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                                                                              Moderator: Anita Sohus
                                                                      February 24, 2004/1:00 p.m. CST
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Shawn This is Shawn from North Carolina. I think the List Serve is really good and also, the
continued use of being able to get the images via the client software has been very, very helpful.

M       I’ll just echo that and say the same thing. It’s better that we can get the images and get
the materials easily and the teleconferences, especially with a lot of the heads-up type things,
those are really valuable, so that we know what to look for.

M      I’ll say ditto to all of that.

Anita Heads up, like when the press conference schedule changes?

Eric The one thing I will say, in terms of what to look for in the near future, I’m not really
quite sure what we’re going to talk about in the press conference or I would tell you, at least at
some level; but it’s true that we have a lot of microscopic images that we’ve been collecting. I
think, earlier in the mission, we didn’t have many of those. Now we have a lot of microscopic
images so that’s a part of our new focus, is actually using more of the instrument deployment
device and more of the instruments on it, including the microscopic imager, to tell us details
about … rock in the area. We’re going to certainly be focusing on that in the near future, and
whether we do that this Thursday or not, I can’t say for sure; but that’s certainly one of our
focuses right now and it’s very different stuff that we’re seeing.

Anita I’m looking at stuff and saying to myself, “What’s round in nature? Things that have
been formed with water, or eggs, or little weevils under bricks.” I’m just fascinated with what
those things are, how they were formed.

Eric Also, that’s one of the science team’s goal here is to work out the hypothesis and better
describe from the data we’ve got from the IDD on the instruments, what are the likely ways these
things formed and what are the differences between two sites? Those are very, very interesting
things to work on now, and so the scientists are working hard on those two things.

Anita That’s one thing I wanted to let you guys know that through Sheri Klug, I believe I’m
going to be able to get a number of ratted rocks to loan.

M      That would be great.

M      You brought them back from Mars?

M      It would be great to have a soil sample like that, yes.

Eric   Yes, who doesn’t want one of those?
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                                                                           Moderator: Anita Sohus
                                                                   February 24, 2004/1:00 p.m. CST
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Anita I was told I could maybe get about ten of them, which we probably need to share with the
Solar System Ambassadors as well, and the Educators. My thought was maybe – test this one
out – send them out to folks for a couple of weeks at a time and with it comes a set of mailing
labels. When you’ve had it for two weeks, you mail it to the next mailing label on the list. Does
that seem like an equitable way to do it?

Eric   It’s almost a pyramid rock scheme.

Anita Yes, a pyramid rock scheme. If there are people who have specific events that they
would like to have them available for, then maybe we’ll reserve a couple for emergency.

Jack   I’ll put in my request for April 17th and 18th.

Anita Astronomy Day in Lincoln?

Jack   Yes, Astronomy Day, but I want to be on the rock chain letter.

Anita Okay. April 17th and 18th, Lincoln.

Steve In Denver, we’re doing something on the 19th.

Jack   We’ll just send it down.

Steve That’s a little too close.

Jack   On the 19th, you better send them a different one.

Sean   We’re doing something here in North Carolina on the 24th.

M      We need dozens and dozens.

Anita I was just admiring a ratted rock I saw from the science area and said to Sheri, “Do you
think we could get some of these?” She grabbed the guy who rats the rocks and he said, “Sure.”
That was neat.

M      A rock ratter.

Eric   Quite a job description.

M      Can I ask a question? I was wondering, I believe kids were sending rocks in and stuff.

Eric   Yes.
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                                                                                Moderator: Anita Sohus
                                                                        February 24, 2004/1:00 p.m. CST
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M       I was just wondering how that program was going. Did you get a million of them?

Eric They have thousands already and the stream doesn’t seem to be stopping or slowing
down.

M       Good.

Anita We’ve laughed about, I guess they were initially putting them all in Phil Christensen’s
office down at ASU and the post office and the campus mail office were going, “What the
heck?”

M       Do they actually look at them and send something back to each of the students?

Anita They’re going to be hiring some grad students. They probably already have. They’re
going to photograph each one. They’re going to do a spectra on each one and I think they’re
going to put it on the Web, right? I don’t know that they’re going to mail them back to the kids.

Eric    Yes, that was the plan.

Anita I know Sheri was helping work out the process and knowing her, I would suspect there is
some kind of way to notify the sender that their material has been looked at and posted.

M       I think it was very brave of you to do that.

Anita Phil Christensen.

M       To actually call in for all these rocks, that’s great.

Anita Yes, it’s one of those, “Are you crazy?”

M       Right.

Anita No, I think it will be really useful for the scientists, as well as for the kids.

M       It’s definitely gotten all of the kids involved, yes.

Anita Yes. I don’t know if Aimee or Derek or Lucy or Maura are online. It was kind of short
notice. Those are the people from these other missions who were interested in how they can use
the energy that Mars Viz has generated for Mars, but I’ll be talking with them and make my
recommendations. We’ll have to also tell them what kinds of resources they’ll need to provide
to make this work for them, as well as for you.
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                                                                            Moderator: Anita Sohus
                                                                    February 24, 2004/1:00 p.m. CST
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        Since I couldn’t find a speaker besides Eric today, I’m short on information. Anybody
else have anything else?

Shawn This is Shawn in North Carolina again. Regarding that, is there the possibility with some
of those missions, is Saturn one that is being looked at as having a similar type of outreach
component to it?

Anita They are looking at it.

Shawn I’m sure there’s going to be, again, with probably a flood of imagery and things like that,
that would be wonderful to be able to get out there, like we were able to with this mission and
I’m sure would excite the kids again and the general public, as well.

Anita Yes, that’s going to be an interesting one. Another issue with that is that the probe is
European and I don’t know what their data release policies are going to be.

Eric I have had discussions with the Europeans about it. We’ve made our requests known that
we’d like to put out images in real time. We actually had a visitor here and we had discussions
with him. He’s taken that back to the European Space Agency and the investigators and they’re
going to discuss that and then get back to us.

Shawn Great.

Anita That probe has landing lights on it for its camera.

M      Why does it have landing lights if it isn’t landing?

Eric Because it’s going beneath Titan’s atmosphere. If you want to have reasonably good
exposure times, then bringing your own lights is a great way to guarantee that you’ll be able to
see things with reasonable exposure times, and they want to take a lot of exposures on the way
down.

Anita It’s basically an atmospheric mission, but with any luck, it will be a landed mission, as
well.

Eric I’m sure people are hoping it keeps operating after it’s landed, but we’ll see. It depends
where it lands and how it lands.

Rich   If it doesn’t land in a pool of methane, liquid methane.

Anita Will that eat the metal? Probably not.
                                                                                                NASA
                                                                              Moderator: Anita Sohus
                                                                      February 24, 2004/1:00 p.m. CST
                                                                                               Page 15


Eric   No.

Anita It would interfere with communications.

Eric   It might be hard to see through.

Rich   It would get really cold.

Anita I think, at the least, Cassini will have some, what shall we call them, professional
development telecons like this, situation like this, but only with some of the mission people and
scientists to help get you guys up-to-speed on what the mission is going to do and how it’s going
to do it. Data release is still being looked at.

Eric   But it is under discussion.

Anita It’s under discussion and our fingers are crossed, and our toes.

Eric We have expressed your interest as a community in this and we’ve also indicated that we
do have an infrastructure here; and we would be happy to support it if the project decides that
they’re able to handle the data release in as timely a fashion. It will be up to them to do that, but
we have infrastructure here and we’ve expressed your interest.

Anita I want to say the feedback that you guys give us, which you’re genuinely excited, that has
really helped our management up here and at Headquarters and other science teams understand
the value of this network approach. A lot of them, like my boss, thought that people would just
put the images on a screen and people would walk by and look at it; but you are doing so much
more than that in so many ways and it has really opened a lot of eyes, I think, for people to
understand. As my boss said, “You give up a little control and look what can happen.” We
really appreciate your good feedback and we really want all your feedback on what we need to
do better.

       Anybody else this morning?

Ryan This is Ryan, again. I actually did think of my Mimi question and actually think it is still
relevant. I was wondering what filters were used in the false color image of Mimi that was
released, I think, it was February 13th. It was the only image released for Spirit, February 13th.

Anita I looked that up. I didn’t see it on the caption and I didn’t see it in the Photojournal
caption, either. Is there a way to find out, Eric? [n.b. 2/27: still checking.—a]
                                                                                                 NASA
                                                                               Moderator: Anita Sohus
                                                                       February 24, 2004/1:00 p.m. CST
                                                                                                Page 16

Eric This actually brings up a good point that I’ve been bringing up with the project scientists
directly, as well as the investigators; and that is that on the captioned material, in the templates
that we originally sent out, we requested that if wherever possible, try to indicate site, position,
and in a case, like the PanCam, where it’s a set of filters, the filters used and whether it’s left or
right eye in the images. Not all captions have done that.

Secondly, we’ve asked that in addition to the released images, that they provide us with the
source files from which the released images were created, and that hasn’t happened in all cases,
either. In the cases where we have the source images, we can then go back and in the label
information, we should be able to tell exactly what filters were used.

We’re, once again, requesting that and emphasizing why that would be important, and primarily,
because I think that people like you are asking for it, but also because it should be part of the
archive of how these products were produced and what goes into them. So that if people want to
make similar ones in the future, they have an example and they know what was used in the
creation of the images. That hasn’t all been fixed yet, and so that’s probably not the only one
that doesn’t indicate the filters; but we’re aware that we would like to include those and we’ll try
to fix as many of them as we can.

Anita If you look at the file name, you should be able to figure out who did it—don’t they put
their initials as part of the file name?

Eric Actually in the file name and the official file name, it includes what group did it. Not the
individual, but the group, and it is a group responsibility. In other words, whether it’s the
instrument team or whether it’s the image processing lab or whatever, they know that it’s their
responsibility to keep the files up-to-date, including source files.

Anita If you go to the Photojournal and there’s a released image, you’re not necessarily going
to find all the EDR file names that it was made from.

Eric That’s correct. When it’s a full frame or whatever, the filename itself, you can tell from
it what filters are used. When it’s a released image that’s in the Photojournal or was used in a
press conference, the naming conventions are not as consistent. Of course, they’re not as long,
either. The standard files are 27 characters, plus an extension. They use shorter names for some
of the released files, and therefore, the name doesn’t tell you everything, so it’s a trade-off. It
also means we’re going to actually deal with some of the files.

We’ll try to find out some of that and we’ll try to actually backdate. What we’re looking to do is
look at all the captions and try to go back and do a rectification process, where if there’s any
missing information that we could fill in, we’d like to do that. We haven’t done it yet, but that’s
on our list of things to try and do.
                                                                                                NASA
                                                                              Moderator: Anita Sohus
                                                                      February 24, 2004/1:00 p.m. CST
                                                                                               Page 17

Anita It’s easier to do it now than later because later, you’ll never go back to it, right?

Eric No, we’re fully aware of that. What we’re really trying to do first is try to get all of the
new images, so they are complete and so, there’s a smaller set to have to go back and fix. We’re
trying to do that because all current ones do include all of the site positions and filter
information.

Anita It’s a familiar issue when you’re dealing with lots of new stuff.

Eric   Yes.

Anita Anybody else for this morning? Next week is the education focus, we hope. If your
education representative from your institutions are able to be on line, that would be great and I
will be sending out the information about the streaming from Arizona State on Saturday as soon
as I get it.

       Thank you. Talk to you next week.

				
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