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EPOXI Mission News
Rich
post Mar 23 2009, 09:52 PM
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So I just got a blessing from the Ethics office. Attached is the presentation on EPOCh observations I gave at the IEEE conference in Big Sky. Feel free to bug me with questions. I'm continuing to research the legal aspects of posting the paper here too. Stay tuned!

Attached File  EPOCh_IEEE_Presentation_umsf.pdf ( 963.67K ) Number of downloads: 886


~Rich
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dmuller
post Mar 24 2009, 12:35 AM
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Dear Rich,

QUOTE (Rich @ Mar 24 2009, 04:11 AM) *
Daniel, the SPICE kernel you have is slightly out of date. Your version was generated before TCM-14 without the TCM-14 burn. You want to be using spk_drm224_Burn-full.bin That's the latest and greatest o.d. solution.

Thanks so much for the clarification. I will incorporate the file into the next data update.


QUOTE (Rich @ Mar 24 2009, 04:11 AM) *
Where are you getting these by the way? Are they public?

Yes the SPICE kernels are public and for most missions they can be found at http://naif.jpl.nasa.gov/naif/
EPOXI, still under the Deep Impact name, is listed under the Comet and Asteroid missions at http://naif.jpl.nasa.gov/naif/data_comet.html
The Horizons system at http://ssd.jpl.nasa.gov/?horizons also runs on SPICE kernels but occasionally it is not updated. At the moment it seems to use
CODE
Trajectory Name               Start UTC             Stop UTC
----------------------------- --------------------  --------------------
[...]
drm220_withTCM12-full         2008 APR 18 09:00:00  2008 DEC 09 00:00:00
  (103P/Hartley 2 soln.: #49)
drm223_with_tcms-full         2008 DEC 09 00:00:00  2012 JAN 31 00:00:00
epoxi_2008-2019.090217        2012 JAN 31 00:00:00  2019 JAN 01 00:00:00


QUOTE (Rich @ Mar 24 2009, 04:11 AM) *
I sent an e-mail to the webmaster for space.jpl.nasa.gov and asked him to add EPOXI. He hasn't gotten back to me, but I hope we'll get EPOXI in there.

Thanks.

If you wish to include timeline events, feel free to send them to me and I'll upload them in due course. Anything to create a grain of outreach for your mission :-)




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Bjorn Jonsson
post Mar 25 2009, 12:03 AM
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QUOTE (Rich @ Mar 19 2009, 08:46 PM) *
Let me talk with our Public Outreach people and our science team and I'll see if I can get any data released to the "world". What exactly would you guys want? .jpgs? raw binary images? Please let me know and I'll see if I can get any data released.

I myself prefer PDS formatted data and there are probably lots of people here that also prefer it but PNGs are better known and are probably the best option to make the data easier to use for lots of people. As previously discussed, PNGs are far better than JPGs due to the absence of compression artifacts and the fact that they can be 16 bits/pixel when needed. Their only drawback compared to JPGs is bigger files.
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Rich
post Mar 25 2009, 08:43 PM
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QUOTE (Bjorn Jonsson @ Mar 24 2009, 05:03 PM) *
I myself prefer PDS formatted data and there are probably lots of people here that also prefer it but PNGs are better known and are probably the best option to make the data easier to use for lots of people. As previously discussed, PNGs are far better than JPGs due to the absence of compression artifacts and the fact that they can be 16 bits/pixel when needed. Their only drawback compared to JPGs is bigger files.



Sorry Bjorn. I don't think the project will release any EPOXI data to the PDS until April and it may not get released to the public until May. You'll have to stay perched on the edge of your computer chair until then. I'll see if I can get anything released to the world, but you may have to settle for .jpgs. Sorry! .jpgs are better than nothing!

~Rich
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Rich
post Mar 27 2009, 12:15 AM
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Mission update:

FYI, we will be taking more pictures of the Earth tomorrow in a similar fashion to how the previous Earth observations were performed (in fact, we're using the exact same sequences, fancy that). However, we will be significantly closer than the Earth Observation that took the lunar transit movie (17 Gm compared to 50 Gm (that's giga-meters, or Mkm (that's Mega-kilometers) (and yes, that's a subnested parenthetic remark)). Since the spacecraft is now north of the ecliptic plane, we will be looking down on the Earth's north pole. A simulated image of what we might see has been floating around JPL. I'll ask around to see if I can post it.

Images will be coming down Saturday.

~Rich
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elakdawalla
post Mar 27 2009, 12:49 AM
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Sweet. Can't wait to see the pics. --Emily


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Rich
post Mar 30 2009, 10:21 PM
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QUOTE (dmuller @ Mar 19 2009, 05:35 PM) *
I have noted that EPOXI is not on the Solar System Simulator (http://space.jpl.nasa.gov/) ... Deep Impact is but gives an error if you enter today's date ... which I think would be a good tool to have (both for the general public and to incorporate images into my simulations). So maybe you could suggest to the team at the Solar System Simulator to have EPOXI enabled :-)

Good luck with your mission!


dmueller: It's amazing what a simple e-mail does smile.gif EPOXI is now in the JPL Solar System Simulator! Thanks for pointing that out to us.

In other news, the images from this weekend's Earth Observation are now on the ground and they look great!
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dmuller
post Mar 31 2009, 02:51 AM
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QUOTE (Rich @ Mar 31 2009, 09:21 AM) *
dmueller: It's amazing what a simple e-mail does smile.gif EPOXI is now in the JPL Solar System Simulator! Thanks for pointing that out to us.

Thanks for asking, Rich! Have updated the EPOXI Realtime Simulation accordingly.

Incidentally I figured out how to make my website tweet to my Twitter. In due course I hope to get it to periodically tweet mission updates onto my Twitter. Standby.



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Rich
post Mar 31 2009, 11:27 PM
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Hi all,

I just noticed a new article on the EPOXI website by the EPOCh P.I. Drake Deming:

http://epoxi.umd.edu/2science/alienmaps.shtml

Enjoy!

~Rich
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Paolo
post Apr 1 2009, 07:40 PM
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QUOTE (Rich @ Apr 1 2009, 01:27 AM) *
I just noticed a new article on the EPOXI website by the EPOCh P.I. Drake Deming:


There was a presentation on the same subject here: http://www.astro.washington.edu/users/cowa..._lunch_talk.ppt but it has been removed. It is cached on Google in html
http://209.85.129.132/search?q=cache:wdXK3..._lunch_talk.ppt
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dmuller
post Apr 4 2009, 06:55 AM
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QUOTE (dmuller @ Mar 31 2009, 01:51 PM) *
Incidentally I figured out how to make my website tweet to my Twitter. In due course I hope to get it to periodically tweet mission updates onto my Twitter. Standby.

Selected trajectory information about some missions (including EPOXI) are now tweeting automatically to my Twitter account about once every day


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Rich
post Apr 7 2009, 04:44 PM
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QUOTE (Paolo @ Apr 1 2009, 12:40 PM) *
There was a presentation on the same subject here: http://www.astro.washington.edu/users/cowa..._lunch_talk.ppt but it has been removed. It is cached on Google in html
http://209.85.129.132/search?q=cache:wdXK3..._lunch_talk.ppt


Paolo: I can't seem to find those presentations. You don't have a copy of them do you?

~Rich
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Paolo
post Apr 7 2009, 07:26 PM
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QUOTE (Rich @ Apr 7 2009, 06:44 PM) *
Paolo: I can't seem to find those presentations. You don't have a copy of them do you?

~Rich


I don't. I only have saved the cached google copy
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tedstryk
post Apr 10 2009, 06:40 PM
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FYI, Hubble is presently studying Hartley-2 to try to pin down the basic properties of the nucleus, especially the rotation period, so that the information can be incorporated into mission planning.

http://www.stsci.edu/cgi-bin/get-visit-sta...rkupFormat=html
http://archive.stsci.edu/proposal_search.p...st&id=11990


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Paolo
post Apr 12 2009, 06:48 PM
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QUOTE (tedstryk @ Apr 10 2009, 08:40 PM) *
FYI, Hubble is presently studying Hartley-2 to try to pin down the basic properties of the nucleus,


Observations have also been carried out by Spitzer, but I have noy seen results published yet http://adsabs.harvard.edu/abs/2008sptz.prop50593L
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