EPOXI

Two intriguing investigations -- One flight-proven spacecraft

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Deep Sky Challenge

As part of the Deep Sky Feasibility Demonstration, 260 images were collected of four targets: M51, NGC6960 (left), NGC6960 (right), and M27. The data are not expected to be used for any team papers, so the team has decided to make these images available through the website! Therefore, you have a chance to process them to make pretty pictures (like Steve did).
These images have been flatfielded, dark subtracted, etc., but they have not been reviewed or archived.

All images were taken using the MRI-VIS CCD on the Deep Impact Flyby spacecraft.
Images are in FITS format.
Images have been calibrated.
Information in the header may be inaccurate -- inherent information such as exposure duration or filter should be correct, but derived information such as geometry or phase angles may be inaccurate or missing.
All images are binned 1x1. However, not all used the full 1024x1024 pixel frame of the CCD chip, i.e., they are effectively 'cropped'.
Images were taken on 14-15 July 2011.

Challenge

Use the following images to make your own pictures and send us your results for posting here on the website. If you have your own website where you can post the images, just send us a link. If you do post to your own site, we ask that you include the following two lines:
Data Credit: NASA/JPL-Caltech/UMD
Processing by: Your Name
and then link back to this page. Whether you email us your version or post to your own website, be sure to include how you processed the image so that others can learn from you!!

Technical Details:

target	exposure ID	# of images	frame size	exposure (ms)	filter
M51 all 65 (~75MB)	1000000 ¹	7	512	1020000	1
	1000001	6	512	300000	1
	1000002	7	512	1020000	2
	1000003	6	512	300000	2
	1000004	7	512	1020000	4
	1000005	6	512	300000	4
	1000006	7	512	1020000	5
	1000007	6	512	300000	5
	1000008	7	512	1020000	7
	1000009	6	512	300000	7
NGC6960-1 all 65 (~295MB)	1000010¹	5	1024	1020000	1
	1000011	4	1024	120000	1
	1000012	4	1024	300	1
	1000013	5	1024	1020000	2
	1000014	4	1024	120000	2
	1000015	4	1024	12000	2
	1000016	5	1024	1020000	4
	1000017	4	1024	120000	4
	1000018	4	1024	1500	4
	1000019	5	1024	1020000	5
	1000020	4	1024	120000	5
	1000021	4	1024	9000	5
	1000022	5	1024	1020000	7
	1000023	4	1024	300000	7
	1000024	4	1024	90000	7
NGC6960-2 all 65 (~295MB)	1000025¹	5	1024	1020000	1
	1000026	4	1024	120000	1
	1000027	4	1024	300	1
	1000028	5	1024	1020000	2
	1000029	4	1024	120000	2
	1000030	4	1024	12000	2
	1000031	5	1024	1020000	4
	1000032	4	1024	120000	4
	1000033	4	1024	1500	4
	1000034	5	1024	1020000	5
	1000035	4	1024	120000	5
	1000036	4	1024	9000	5
	1000037	5	1024	1020000	7
	1000038	4	1024	300000	7
	1000039	4	1024	90000	7
M27 all 65 (~20MB)	1000040¹	7	256	1020000	1
	1000041	6	256	300000	1
	1000042	7	256	1020000	2
	1000043	6	256	300000	2
	1000044	7	256	1020000	4
	1000045	6	256	300000	4
	1000046	7	256	1020000	5
	1000047	6	256	300000	5
	1000048	7	256	1020000	7
	1000049	6	256	300000	7

¹ Image sets used by S. Wissler.

Table 1: Table containing information about the images.

filter wheel position	Center wavelength (nm)	filter width (nm)	target measurement	filter 'name'
1	650	>700¹	context	clear1
2	514	11.8	C2 in coma	C2
3	526	5.6	dust in coma	green cont.
4	750	100	context	red
5	950	100²	context	IR
6	650	>700¹	context	clear6
7	387	6.2	CN in coma	CN
8	345	6.8	dust in coma	violet cont.
9	309	6.2	OH in coma	OH

¹ Filters in position 1 & 6 are uncoated fused silica and not band limited.
² The 950nm filter is longpass.

Table 2: Table containing data about the MRI filter wheel. Filters used for the deep sky images are highlighted.

Credit: NASA/JPL-Caltech/UMD

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