3
Mission Implementation
TABLE 3.1 Comparison of Small Exploration Missions
Clementine | NEARa | Mars Pathfinder | Lunar Prospector | Deep Space 1 | Stardust | |
Mission type | Orbiter | Rendezvous | Lander | Orbiter | Flyby | Flyby/Sample Return |
Destination | Moon 1620 Geographos (flyby) |
433 Eros 253 Mathilde (flyby) |
Mars | Moon | 3352 McAuliffe, Mars, and Comet P/West- Kohoutek-Ikamura |
Comet P/Wild-2 |
Launch date | 25 January 1994 | 11 February 1996 | 4 December 1996 | October 1997 | July 1998 | February 1999 |
Arrival time | 1 February 1994 (Moon) | June 1997 (Mathilde) January 1999 (Eros) |
July 1997 | October 1997 | February 1999 (McAuliffe) April 2000 (Mars) June 2000 (West-Kohoutek- Ikamura) | January 2004 |
Return date | — | — | — | — | — | January 2006 |
Lifetime at destination (months) |
2 | 12 | 1 to 12 | 12 to 24 | — | — |
Wet mass (kg) | 458 | 805 | 570 | 233 | 495 | 339 |
Dry mass (kg) | 235 | 485 | 325 | 126 | 414 | 271 |
Dimension | 2.0 x 1.0 | 1.7 x 1.7 | 1.5 x 2.65 | 1.4 x 1.29 (plus 2.5-m booms) | 1.7 x 1.8 | 1.5 x 2.2 |
Payload | Ultraviolet/Visible Imager Near-Infrared Imager Long-wave Infrared Imager High-Resolution Imager/Lidara |
Imager Near-Infrared Spectrograph Lidar Magnetometer Gamma-ray Spectrometer | Imaging System -p-X-ray Spectrometer Meteorology Package |
Gamma-ray Spectrometer Neutron Spectrometer particle Spectrometer Electron Reflectometer |
Integrated Imager and Spectrometer Integrated Plasma Instrument |
Imager Aerogel Dust Collectors Aerogel Volatile Collectors Dust-Flux Monitores Mass Spectrometer |
Payload mass (kg) | 6.3 | 55 | 20 (includes rover) | 55 | 18 | 45 (includes return capsule) |
Cost (FY 1996 $M)b Development/Construction Operations/Support Launch Total |
67 (55) 6 (5) 25 (20) 98 (80) |
125 48 48 221 |
199 18 48 265 |
30 26 5 61 |
60 ? 35 95 (?) |
128 34 37 200 |
Manufacturer | NRLa | APLa | JPLa | Lockheed Martin | Spectrum Astro | Lockheed Martin |
Launch vehicle | Titan IIG | Delta II 7925 | Delta II 7925 | LMLV2a | Delta II 7326 | Delta II 7426 |
Development schedule (months)c |
28 | 29 | 39 | 25 | 34 | 41 |
Primary rationale | Technology | Science | Technology | Science | Technology | Science |
Management style | "Skunkworks" | Traditional NASA | Traditional NASA | PIa | Traditional NASA | PI |
Selection process | Preselected | Preselected | Preselected | Competition | Preselected/IPDTa | Competition |
Last update 7/19/00 at 10:11 am
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