If you are familiar with the Deep Impact mission, use the table below for quick reference to our mission specifications. If you haven't had a chance to read an overview for Deep Impact, take a look at our Fact Sheet.

Deep Impact Quick Facts
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: 05:44:36 UTC 4 July 2005 (Earth-received time 05:52:02) Impactor separation at 24 hrs prior to impact Approach solar phase angle: 63° Impactor approach velocity: 10.3 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