What is the dot ? A star, but is not streched due
to stacking.
An artifact? or a part of the comet after impact?
Mission/Instrument/Task Name: Deep Impact
Objectives: To study the pristine interior of a comet by excavating
a crater more than 25 m deep and 100 m in diameter.
Principal Investigator: Dr. Michael A'Hearn, University of Maryland
Project Manager: Rick Grammier, JPL
Major Contractors/Contribution: JPL - project management, ground
systems
Ball Aerospace & Technologies Corp. - all flight hardware
Start Date: 11/01/1999
Launch Date: 01/12/2005
Launch Vehicle: Delta II
Launch Site: Eastern test range (Kennedy Space Center, Florida)
Mission Events:
(Rendezvous (distance)/
Landing (location)): Encounter date 0600 4 July 2005 UT
Impactor separation at 24 hrs prior to impact
Approach solar phase angle: 63°
Impactor approach velocity: 10.2 km/s
Flyby S/C closest approach: 500 km
End of Mission: Data return until 08/2005 (28 days)
End of Project Date: 03/2006 (includes 9 months of data analysis)
Launch Mass (kg): 1020 kg
Prime antenna diameter (meters): 1 meter (parabolic)
Communications bandwidths: x-band for flyby spacecraft (uplink
command and downlink telemetry)
s-band for impactor communication to/from the flyby spacecraft
Max Data Rate (kbps): 175 kbps
Max solar array power (W): 620 W at encounter
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