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103P on 2010-10-23

Image of 103P/Hartley taken 2010.10.22 by DI S/C and marked with directional pointers.

Caption: This EPOXI mission image of comet 103P/Hartley 2 was taken 12 days from Encounter (E-12d) using the Medium Resolution Instrument (MRI) and a clear filter. Science Team member Dr. Dennis Wellnitz combined three successive one-minute exposures to make this single image. The mid-exposure time was 2010/10/23 00:09:25 UTC. The comet was 1.06 AU from the Sun and 0.09 AU (13 million km) from the spacecraft.

Technical Details

Image Parameter Details
Spacecraft: Deep Impact Flyby
Instrument: Medium Resolution Instrument (MRI)
Mid-exposure Date/Time (UTC): 2010/10/23 00:09:25
Filter: Clear
Exposure: 3 x 60 sec
Pointing: RA 20h 43' 01"
Dec +37° 14' 56"
Field of View: approximately 34,000 km at the comet
Solar Elongation: 101°
Solar Phase Angle: 75°
Sun-Comet distance (r): 1.0612 AU (159 million km)
DIF-Comet distance: 0.0889 AU (13 million km)

Table 1: Data about image.

Additional Images:

Image of 103P/Hartley taken 2010.10.23 by DI S/C.Click for full size image.
This is the same image as above, but without the pointers.
Negative image of 103P/Hartley taken 2010.10.23 by DI S/C.Click for full size image.
Negative of the same image which makes it a little easier to see the faint coma around the comet.

Credit: NASA/JPL-Caltech/UMD

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