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| Small Bodies Mission Support |
DS1 launched on 24 October 1998, the first of NASA's New Millennium Program missions. The purpose of DS1 and future New Millennium Program projects is to test and validate high-risk and low-cost advanced technologies in space. DS1 carries 12 advanced technologies on-board. On 11 November 1999 the star tracker aboard DS1 failed. This sensor is not one of the 12 advanced technologies on-board DS1, but it is part of the attitude control system and aids in determining the spacecraft's orientation. New computer software was written by the DS1 team and transmitted to the spacecraft instructing it on how to use the camera from the on-board Miniature Integrated Camera Spectrometer (MICAS) instrument as a replacement star tracker.
On 28 July 1999 DS1 flew by the near-Earth asteroid (9969) Braille at an estimated altitude of 26 km. The scientific goals for the DS1 asteroid flyby included measuring the gross physical properties, surface composition, and interaction of the asteroid with the solar wind. The DS1 primary mission ended 18 September 1999, but the mission was extended after the asteroid flyby to include a flyby of comet 19P/Borrelly.
On 22 September 2001, UT 22:30, Deep Space 1 successfully passed within 2,200 kilometers of comet 19P/Borrelly. The scientific goals for the comet encounter included measuring the gross physical properties of the nucleus, coma features, interaction of the coma with the solar wind, plasma properties, and plasma composition of the coma and tail. The DS1 mission effectively ended after the encouter with Borrelly.
The DS1 Mission web site is maintained by NASA/JPL.
The SBN is cooperating with other groups in PDS (Central Node, Imaging Node, and Navigation and Ancillary Information Facility) to archive the scientific and engineering data from the Deep Space 1 mission.
The USGS Astrogeology Research Program holds the MICAS archive. The archive included the original engineering data records and calibrated data in cube format from the MICAS Visible CCD and IR Spectrometer. Nucleus topographic models and Borrelly animations are also held at the USGS.
| Instrument/Investigation | Measuring | Small Bodies Data available below |
|---|---|---|
| Ion Propulsion System Diagnostic System (IDS) | Plasma wave spectra and electric field pulses indicative of the cometary environment (dust impacts) | Borrelly Encounter |
| Miniature Integrated Camera Spectrometer (MICAS) | Morphology, chemical composition, size, spin-rate, and atmosphere | Borrelly Encounter: Visible CCD Images Digital Elevation Maps |
| Plasma Experiment for Planetary Exploration (PEPE) | Three-dimensional plasma distribution and plasma/surface interactions; energy spectrum of electrons and ions from 3 eV to 30 keV; ion mass in the range of 1 to 135 amu | Borrelly Encounter |
| Instrument/ Investigation Description | Target | Description of Available Data | Data Link |
|---|---|---|---|
| IDS | Borrelly | Encounter data in ASCII tables | IDS Archive |
| MICAS | Borrelly | Visual CCD Images from Encounter, 2-D images reconstructed from the original image cubes held at the USGS | MICAS Image Archive |
| Digital Elevation Maps from Encounter, derived from MICAS images | Digital Elevation Maps | ||
| PEPE | Borrelly | Magnetic Field Data from Encounter | PEPE Archive |
| SPICE | Navigation | Best available navigation and ancillary data, in the form of SPICE System kernel files for the entire mission | SPICE Archive |
| Target | Target Type | Other Data Sets Targeting this Object |
|---|---|---|
| (9969) Braille | Asteroid | |
| 19P/Borrelly 1 | Comet | CTIO Images and Photometry |
| McDonald Observatory Images | ||
| McDonald Observatory Column Density Observations | ||
| Ground-based CCD Images |