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Rev 126 - Feb 4-22, 2010 - Mimas (main target), Tethys, Iapetus, Calypso and mutual events too
belleraphon1
post Feb 4 2010, 01:35 AM
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All

closest look at Mimas ... 30 minutes after periapsis on 02/13/10 at 17:25 UTC

http://ciclops.org/view/6188/Rev126

"Thirty minutes after periapse, ISS will perform a targeted encounter with Saturn's innermost large icy satellite, Mimas. The altitude for this encounter is 9,510 kilometers (5,910 miles) the closest Cassini has ever gotten to this cratered moon. For this encounter, ISS will acquire three mosaics along with another observation where ISS will be riding along with the Composite Infrared Spectrometer (CIRS). ISS' first mosaic of Mimas, GEOLOG001, will start 30 minutes after closest approach when Cassini is 14,800 kilometers (9,200 miles) away from Mimas. GEOLOG001 is a seven-frame, multi-spectral mosaic of the region surrounding the crater Herschel. Herschel, at 130 kilometers (80 miles) across, is the largest impact basin on Mimas, so large that it caused significant amounts of stress on the lithosphere of the small moon and so distinctive that it helped give the satellite the nickname, "The Death Star Moon." These high-resolution observations of the basin will be used to estimate the age of the crater. Scientists will count the number of smaller craters on the basin floor, compared to other regions on Mimas, to set limits on how old the basin can be. The second mosaic, GEOLOG002, will also be a seven-frame, multi-spectral mosaic, this time covering most of the visible surface of Mimas, shown above left. The best resolutions for these two observations will be 87 meters (285 feet) per pixel for GEOLOG001 and 191 meters (626 feet) per pixel GEOLOG002. Next, Cassini will ride-along with a CIRS FP3 temperature map of Mimas' day side, acquiring six narrow-angle-camera images during the scan. Finally, ISS will acquire a full-frame, multispectral observation (GLOCOL001) of Mimas' anti-Saturn hemisphere from a distance of 70,000 kilometers (44,000 miles). Saturn will provide a backdrop for this observation."

Glorious

Craig
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volcanopele
post Feb 19 2010, 11:48 PM
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Well, the issue that I have is that my Herschel comes out looking oblong in the north-south direction, which I think it should..., but it pushes some of the craters north and south of Herschel closer to the poles than what is shown in the map on your website.


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scalbers
post Feb 20 2010, 02:44 PM
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Perhaps VP is working with a planetographic map as I think that corresponds with an oblong appearance for Herschel. The official maps on the CICLOPS site also appear to be planetographic. Conversely I am working with planetocentric coordinates (still on the triaxial ellipsoid), where Hershel should probably look more round.

It appears possible to convert between planetocentric and planetographic. One way (at least for the latitude part) might be the reverse of what is discussed below:

https://isis.astrogeology.usgs.gov/IsisSupp...hp?topic=1550.0

Here BTW is a map using three images from the new flyby.

Attached Image


Steve

P.S. I recall running into the Peters projection on another project, thankfully not this one!
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Posts in this topic
- belleraphon1   Rev 126 - Feb 4-22, 2010 - Mimas (main target), Tethys   Feb 4 2010, 01:35 AM
- - volcanopele   Don't forget poor little Calypso.   Feb 4 2010, 03:16 AM
- - jasedm   Yes, I'm glad that Calypso is getting a closer...   Feb 7 2010, 08:08 AM
|- - DrShank   waiting in a snowstorm in DC to see if my train wi...   Feb 10 2010, 06:25 PM
- - belleraphon1   Very Cool Dr. Shank!! I cannot wait! ...   Feb 12 2010, 10:53 PM
- - scalbers   Nice to see Dr. Shank's color map update. Here...   Feb 13 2010, 03:27 PM
- - scalbers   "Live" shot via Celestia:   Feb 13 2010, 04:34 PM
- - scalbers   Here's a little movie... Near closest appro...   Feb 13 2010, 04:58 PM
|- - peter59   QUOTE (scalbers @ Feb 13 2010, 05:58 PM) ...   Feb 13 2010, 05:52 PM
- - Hungry4info   Very much looking forward to images!   Feb 13 2010, 07:12 PM
- - peter59   Calypso ! http://saturn.jpl.nasa.gov/multimed...   Feb 14 2010, 10:09 AM
- - volcanopele   Just an FYI: the play back earlier was a short one...   Feb 14 2010, 10:18 AM
- - Astro0   Wow, Calypso looks like a neat little place Quick...   Feb 14 2010, 12:08 PM
- - Adam Hurcewicz   I stack to color image from this: N00151479 ( R...   Feb 14 2010, 12:55 PM
- - Ian R   Here's my version of the Calypso flyby: http:...   Feb 14 2010, 01:20 PM
|- - ugordan   Nice work, Ian! Reminds me of Telesto, but th...   Feb 14 2010, 01:31 PM
|- - Ian R   QUOTE (ugordan @ Feb 14 2010, 01:31 PM) N...   Feb 14 2010, 04:48 PM
|- - Greg Hullender   QUOTE (Ian R @ Feb 14 2010, 08:48 AM) I...   Feb 14 2010, 05:42 PM
- - jasedm   Some pretty smooth areas at this resolution - it r...   Feb 14 2010, 03:23 PM
- - Floyd   Adam--Welcome to UMSF! Nice color image--very...   Feb 14 2010, 03:36 PM
- - nprev   Seems like almost every 'rock' in the Satu...   Feb 14 2010, 03:38 PM
- - Floyd   This look at Calypso was from 21,257 km at closest...   Feb 14 2010, 04:11 PM
- - scalbers   While we're waiting for Mimas images here are ...   Feb 14 2010, 04:38 PM
- - scalbers   Nice 3D effect with Calypso, almost looks like we...   Feb 14 2010, 04:55 PM
- - ElkGroveDan   I guess I didn't get up early enough. Here...   Feb 14 2010, 05:40 PM
- - Ian R   Yes, it's the same sequence of images bouncing...   Feb 14 2010, 06:04 PM
- - Explorer1   Is it just my imagination, or are there thin paral...   Feb 14 2010, 08:47 PM
- - volcanopele   Nope, you're not crazy. I was starting to won...   Feb 14 2010, 08:51 PM
|- - Explorer1   QUOTE (volcanopele @ Feb 14 2010, 12:51 P...   Feb 14 2010, 09:03 PM
- - elakdawalla   Coolness! And good eyes, Explorer1. I notice...   Feb 14 2010, 10:30 PM
|- - Explorer1   So when is the Mimas image down-link? This is the ...   Feb 14 2010, 10:55 PM
|- - Stu   QUOTE (Explorer1 @ Feb 14 2010, 10:55 PM)...   Feb 14 2010, 11:24 PM
- - imipak   I know; isn't it brilliant? Anticipation's...   Feb 14 2010, 11:04 PM
- - volcanopele   Tomorrow 5:30am MST/12:30pm UTC, +/- 2 hours   Feb 14 2010, 11:31 PM
- - vikingmars   I just like very much this oval moon (Cassini pic ...   Feb 15 2010, 11:05 AM
|- - tedstryk   Here we are!!! http://saturn.jpl.nas...   Feb 15 2010, 11:41 AM
|- - ugordan   QUOTE (tedstryk @ Feb 15 2010, 12:41 PM) ...   Feb 15 2010, 12:16 PM
|- - Bjorn Jonsson   QUOTE (ugordan @ Feb 15 2010, 12:16 PM) C...   Feb 15 2010, 12:30 PM
|- - ugordan   QUOTE (Bjorn Jonsson @ Feb 15 2010, 01:30...   Feb 15 2010, 12:37 PM
- - Astro0   Mimas...quick stitch   Feb 15 2010, 12:15 PM
- - peter59   Damn, the best picture is a bit overexposed. ht...   Feb 15 2010, 12:18 PM
|- - ugordan   QUOTE (peter59 @ Feb 15 2010, 01:18 PM) D...   Feb 15 2010, 12:24 PM
|- - Stu   QUOTE (peter59 @ Feb 15 2010, 12:18 PM) D...   Feb 15 2010, 12:30 PM
|- - charborob   QUOTE (peter59 @ Feb 15 2010, 07:18 AM) D...   Feb 15 2010, 02:01 PM
- - Stu   Wow... http://saturn.jpl.nasa.gov/multimedia/imag...   Feb 15 2010, 12:19 PM
|- - volcanopele   QUOTE (Stu @ Feb 15 2010, 05:19 AM) Wow.....   Feb 15 2010, 12:26 PM
- - Bjorn Jonsson   QUOTE (tedstryk @ Feb 15 2010, 11:41 AM) ...   Feb 15 2010, 12:25 PM
- - Floyd   Wow, what a great set of images, including Epimeth...   Feb 15 2010, 12:34 PM
- - volcanopele   Four of the images from the encounter are highligh...   Feb 15 2010, 02:14 PM
|- - angel1801   There is also a set of Tethys images from about 17...   Feb 15 2010, 03:06 PM
- - Juramike   Tethys images up: http://saturn.jpl.nasa.gov/mult...   Feb 15 2010, 03:17 PM
- - Poolio   Nice one, charborob. The darkening in the crater w...   Feb 15 2010, 03:57 PM
|- - ugordan   QUOTE (Poolio @ Feb 15 2010, 04:57 PM) Go...   Feb 15 2010, 04:01 PM
|- - dilo   Merging N00151591+93+95 (green+IR2+UV2 filters res...   Feb 15 2010, 04:07 PM
- - volcanopele   Bah! Just when I though I got my color versio...   Feb 15 2010, 04:14 PM
|- - dilo   QUOTE (volcanopele @ Feb 15 2010, 05:14 P...   Feb 15 2010, 04:21 PM
- - belleraphon1   Wonderful as always. Yeah, Stu, the fact we get ...   Feb 15 2010, 04:54 PM
- - Adam Hurcewicz   Janus and Epimetheus eclipses (animation)   Feb 15 2010, 05:02 PM
- - ElkGroveDan   Well since Adam beat me by a few seconds, here...   Feb 15 2010, 05:13 PM
- - dilo   Feb, 14 sequence animation: Note the curious sudd...   Feb 15 2010, 05:59 PM
|- - ugordan   QUOTE (dilo @ Feb 15 2010, 06:59 PM) Note...   Feb 15 2010, 06:33 PM
- - volcanopele   Nice catch about the change in illumination on Epi...   Feb 15 2010, 06:37 PM
- - belleraphon1   I do not usually throw in attachments so bare with...   Feb 15 2010, 07:16 PM
- - Explorer1   Wow this stuff is truly great. Honestly if it wasn...   Feb 15 2010, 07:45 PM
- - Juramike   Compare it to Rhea. Many of the larger craters on...   Feb 15 2010, 07:50 PM
- - Ian R   Here are my two 'bouncy' animations of thi...   Feb 15 2010, 08:01 PM
|- - Adam Hurcewicz   - Full quote deleted. Use the "add reply...   Feb 15 2010, 08:19 PM
|- - dilo   Grat animations, Ian! (original quality is cle...   Feb 15 2010, 08:56 PM
- - Adam Hurcewicz   TETHYS in (IR1, G UV3) ir1 N00151608 g N00151607 ...   Feb 15 2010, 09:06 PM
- - Poolio   What we're seeing here is these two co-orbital...   Feb 15 2010, 09:08 PM
- - Floyd   I'm not exactly sure where they are in the pro...   Feb 15 2010, 09:23 PM
- - Phil Stooke   This is not the orbital switch. There are several...   Feb 15 2010, 09:34 PM
- - Poolio   But changing the observer's perspective couldn...   Feb 15 2010, 09:37 PM
- - Phil Stooke   "in this Mimas image I am not convinced all t...   Feb 15 2010, 09:38 PM
- - volcanopele   Yes, exactly. These movies are taken over a non-i...   Feb 15 2010, 09:46 PM
- - Poolio   Okay, I get it. Thanks. So the rotation we'r...   Feb 15 2010, 09:58 PM
- - Adam Hurcewicz   I finish colorize MIMAS. This dark areas are more ...   Feb 15 2010, 10:30 PM
|- - tedstryk   Adam, it says "Limax 7" in the corner of...   Feb 15 2010, 10:51 PM
|- - Adam Hurcewicz   QUOTE (tedstryk @ Feb 15 2010, 11:51 PM) ...   Feb 15 2010, 11:07 PM
- - Juramike   Final adjusted color composite RGB [IR1, GRN, UV3]...   Feb 16 2010, 02:17 AM
- - peter59   My mosaic is not of good quality, I hope that some...   Feb 16 2010, 07:58 AM
|- - ElkGroveDan   QUOTE (peter59 @ Feb 15 2010, 11:58 PM) M...   Feb 16 2010, 08:01 AM
|- - ugordan   Too contrast-stretched would be a better descripti...   Feb 16 2010, 10:11 AM
- - remcook   Nice 'little' storm: http://saturn.jpl.nas...   Feb 16 2010, 08:50 AM
- - Adam Hurcewicz   And my Mimas mosaic from 4 images: N00151557.jpg ...   Feb 17 2010, 01:14 PM
|- - scalbers   QUOTE (Adam Hurcewicz @ Feb 17 2010, 01:1...   Feb 19 2010, 04:06 PM
- - Adam Hurcewicz   Color Titan image from 16 Feb. 2010 I use images:...   Feb 18 2010, 08:44 AM
- - CAP-Team   I had already checked your site for a map update   Feb 19 2010, 06:37 PM
- - volcanopele   I already tried updating my copy of Steve's ma...   Feb 19 2010, 07:29 PM
- - scalbers   CAP-Team - my first step in updating the map is us...   Feb 19 2010, 10:43 PM
- - volcanopele   Well, the issue that I have is that my Herschel co...   Feb 19 2010, 11:48 PM
|- - scalbers   Perhaps VP is working with a planetographic map as...   Feb 20 2010, 02:44 PM
- - Phil Stooke   Sounds like the dreaded Peters Projection! Se...   Feb 20 2010, 01:19 AM
- - Bjorn Jonsson   Looks great even though the contrast stretch is a ...   Feb 20 2010, 08:23 PM
- - scalbers   Bjorn - yes it's true this looks quite a bit m...   Feb 20 2010, 08:32 PM
- - Adam Hurcewicz   Steve, what software you use to making maps? I sea...   Feb 20 2010, 09:31 PM
- - scalbers   Adam - I'm using IDL. Using this software I wr...   Feb 20 2010, 10:15 PM
- - Adam Hurcewicz   Iapetus color image (19 Feb. 2010) N00151720.jpg...   Feb 21 2010, 02:15 PM
- - elakdawalla   Nice! Here's my version Used all the im...   Feb 21 2010, 09:48 PM
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