| Small Bodies Mission Support
|
Deep Impact Mission
Mission Description
Deep Impact is the eighth mission in the Discovery Program, designed to
investigate the interior
of a cometary nucleus. The two-piece spacecraft was launched on
12 January 2005 and
successfully encountered the comet 9P/Tempel 1 on 4 July 2005. About 24
hours before the spacecraft encountered the comet, the flyby spacecraft
released
the impactor spacecraft, a 1/2-ton copper projectile equipped with a visible
CCD, to hit the comet's nucleus. This impact ejected material from the
interior of the comet out into space and produced a crater that is believed
to be at least 100-m in diameter.
Because the flyby spacecraft
and its instruments survived the encounter with Tempel 1, NASA executed a
trajectory correction maneuver on 20 July 2005 which put the spacecraft
on a new orbit to fly past Earth in late December 2007 and solicited
proposals for an extended mission.
The spacecraft was put into sleep mode on 9 August 2005.
It was woken up on September 25, 2007, in preparation for
the EPOXI mission.
Scientific objectives of the Deep Impact mission include: measuring
the composition of the pristine interior of the comet nucleus and how it
differs from the surface material; determining the changes in activity of the
nucleus and composition of the outgassing due to the projectile impact; and
mapping more than 50% of the comet's surface.
The Deep Impact Mission web site
is maintained by the University of Maryland, College Park. See also the
Deep Impact Legacy site
at the Jet Propulsion Laboratory.
The SBN is the lead PDS node to archive the Deep Impact
mission data.
The Deep Impact Project Data Management Plan
is available as a PDF file (518Kb).
On-Board Instruments
Instrument/Investigation
Description
| Measuring
| Small Bodies Data
available below
|
High Resolution Instrument, Infrared Spectrometer
(HRII)
| Surface and gas composition
|
Pre-Launch Test 1
Pre-Launch Test 2
Pre-Launch Test 4
Raw Cruise
Raw Encounter
Processed Encounter, version 2.0
Processed Encounter, version 1.0 (superseded by V2.0)
Surface Temp Maps
Instrument thermal data
|
High Resolution Instrument, Visual CCD
(HRIV)
| Morphology; Outgassing
|
Pre-Launch Test 2
Pre-Launch Test 4
Raw Cruise
Raw Encounter
Processed Encounter, version 2.0
Processed Encounter, version 1.0 (superseded by V2.0)
Movies (impact; dust coma)
Shape Model
Instrument thermal data
|
Medium Resolution Instrument, Visual CCD
(MRI)
| Morphology; Outgassing
|
Pre-Launch Test 4
Raw Cruise
Raw Encounter
Processed Encounter, version 2.0
Processed Encounter, version 1.0 (superseded by V2.0)
Movies (impact; limb jets)
Shape Model
Instrument thermal data
|
Impactor Targeting Sensor, Visual CCD
(ITS)
| Imaging of the surface material
|
Pre-Launch Test 3
Raw Cruise
Raw Encounter
Processed Encounter, version 2.0
Processed Encounter, version 1.0 (superseded by V2.0)
Movie (approach)
Shape Model
|
Navigation
(HRIV)
| Navigation imaging
|
Nav Raw Cruise
Nav Raw Encounter
Nav Processed Encounter
|
Navigation
(MRI)
| Navigation imaging
|
Nav Raw Cruise
Nav Raw Encounter
Nav Processed Encounter
|
Navigation
(ITS)
| Navigation imaging
|
Nav Raw Cruise
Nav Raw Encounter
Nav Processed Encounter
|
Radio Science
(RSS)
| Dust drag
|
Encounter
|
| Ground-Based Network
| Cratering phenomena and ejecta, photometry, astrometry
|
KPNO 2.1m Near-IR Images from encounter
UH 2.2m Visual Images and Astrometry from 1997-2000
IRTF/MIRSI Mid-IR Images from encounter
IRTF/SpeX Near-IR Images from encounter
IRTF/SpeX Near-IR Spectra from encounter
San Pedro Martir 1.5m Visual Images from encounter
|
Mission Data
Instrument/
Investigation
Description
| Target
| Description of Available Data
| Data Link
|
| HRII |
Ground Calibrations |
Pre-Launch Thermal Vacuum Test 1 (TV1)
Pre-Launch Thermal Vacuum Test 2 (TV2)
Pre-Launch Thermal Vacuum Test 4 (TV4) |
TV1
TV2
TV4 |
| HRIV |
Ground Calibrations |
Pre-Launch Thermal Vacuum Test 2 (TV2)
Pre-Launch Thermal Vacuum Test 4 (TV4) |
TV2
TV4 |
| MRI |
Ground Calibrations |
Pre-Launch Test Thermal Vacuum 4 (TV4) |
TV4 |
| ITS |
Ground Calibrations |
Pre-Launch Thermal Vacuum Test 3 (TV4) |
TV3 |
| |
| HRII |
Cruise Calibrations |
Raw Cruise Data |
HRII Cruise |
| HRIV |
Cruise Calibrations |
Raw Cruise Data |
HRIV Cruise |
| MRI |
Cruise Calibrations |
Raw Cruise Data |
MRI Cruise |
| ITS |
Cruise Calibrations |
Raw Cruise Data |
ITS Cruise |
| |
| Nav HRIV |
Cruise Calibrations |
Nav Raw Cruise Data |
Nav HRIV Cruise |
| Nav MRI |
Cruise Calibrations |
Nav Raw Cruise Data |
Nav MRI Cruise |
| Nav ITS |
Cruise Calibrations |
Nav Raw Cruise Data |
Nav ITS Cruise |
| |
| HRII |
9P/Tempel 1 |
Raw Encounter Data |
Raw HRII Enc |
Processed Encounter Data, version 2.0
Processed Encounter Data, version 1.0 (superseded by V2.0) |
Proc HRII Enc, v2.0
Proc HRII Enc, v1.0 |
| HRIV |
9P/Tempel 1 |
Raw Encounter Data |
Raw HRIV Enc |
Processed Encounter Data, version 2.0
Processed Encounter Data, version 1.0 (superseded by V2.0) |
Proc HRIV Enc, v2.0
Proc HRIV Enc, v1.0 |
| MRI |
9P/Tempel 1 |
Raw Encounter Data |
Raw MRI Enc |
Processed Encounter Data, version 2.0
Processed Encounter Data, version 1.0 (superseded by V2.0) |
Proc MRI Enc, v2.0
Proc MRI Enc, v1.0 |
| ITS |
9P/Tempel 1 |
Raw Encounter Data |
Raw ITS Enc |
Processed Encounter Data, version 2.0
Processed Encounter Data, version 1.0 (superseded by V2.0) |
Proc ITS Enc, v2.0
Proc ITS Enc, v1.0 |
| |
| Nav HRIV |
9P/Tempel 1 |
Nav Raw Encounter Data |
Nav Raw HRIV Enc |
| Nav Processed Encounter Data |
Nav Proc HRIV Enc |
| Nav MRI |
9P/Tempel 1 |
Nav Raw Encounter Data |
Nav Raw MRI Enc |
| Nav Processed Encounter Data |
Nav Proc MRI Enc |
| Nav ITS |
9P/Tempel 1 |
Nav Raw Encounter Data |
Nav Raw ITS Enc |
| Nav Processed Encounter Data |
Nav Proc ITS Enc |
| |
| Documentation Set |
Thermal-Vac, Cruise, Encounter |
Documentation for the data sets listed above |
Documentation |
| |
| Flyby Instrument Temperatures |
Cruise, Encounter |
Thermal data for HRII, HRIV, and MRI instruments |
Instrument thermal data |
| |
| Shape Model |
9P/Tempel 1 |
Shape Model based on HRIV, MRI, and ITS data |
Shape Model |
| |
| Surface Temperatures |
9P/Tempel 1 |
Surface Temperature Maps based on HRII data |
Surf Temp Maps |
| |
| Movies |
9P/Tempel 1 |
Approach, impact, dust coma, and limb jet movies (HRIV, MRI, and ITS) |
Movies |
| |
| RSS |
Flyby spacecraft |
Spacecraft Radio Science |
Encounter |
| |
| SPICE |
Spacecraft |
SpacecraftNavigation and Pointing Calculation |
SPICE Kernels |
Other Target Observations
Last update: 31 January 2008, Puru Shetty