(51825) David Brown
|
Asteroid (51825) David Brown |
|
|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Eos family |
| Major semi-axis | 2.9661 AU |
| eccentricity | 0.0703 |
| Perihelion - aphelion | 2.7576 AU - 3.1746 AU |
| Inclination of the orbit plane | 9.6191 ° |
| Length of the ascending node | 23.4577 ° |
| Argument of the periapsis | 33.4783 ° |
| Time of passage of the perihelion | 17th April 2018 |
| Sidereal period | 5.11 a |
| Mean orbital velocity | 17.29 km / s |
| Physical Properties | |
| Absolute brightness | 14.2 mag |
| history | |
| Explorer | Eleanor Helin |
| Date of discovery | July 19, 2001 |
| Another name | 2001 OQ 33 , 1994 CZ 14 , 1999 CO 55 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(51825) Davidbrown is an asteroid of the main outer belt , which was discovered on July 19, 2001 by the American astronomer Eleanor Helin , on recordings of the Near Earth Asteroid Tracking (NEAT) project taken with the 120 cm Oschin-Schmidt Telescope of the Palomar Observatory ( IAU code 644) in California . Unconfirmed sightings of the asteroid had already been made on February 8 and 10, 1994 under the provisional designation 1994 CZ 14 at the La Silla Observatory of the European Southern Observatory in Chile , and on February 10 and 13, 1999 (1999 CO 55 ) at the Lincoln Laboratory Experimental Test System in Socorro , New Mexico .
The asteroid belongs to the Eos family, a group of asteroids, which typically have large semiaxes from 2.95 to 3.1 AU , bounded inward by the Kirkwood gap of the 7: 3 resonance with Jupiter , and orbital inclinations between 8 ° and 12 °. The group is named after the asteroid (221) Eos . The family is believed to have emerged from a collision more than a billion years ago. The timeless (non- osculating ) orbital elements of (51825) Davidbrown are almost identical to those of the possibly slightly smaller, if one assumes the absolute brightness of 14.2 compared to 14.1, asteroids (86124) 1999 RK 147 .
(51825) Davidbrown was named on August 6, 2003 after the American astronaut David McDowell Brown , who died as a mission specialist and pilot of the Columbia space shuttle in the February 1, 2003 crash. Asteroids were named after all members of the Columbia crew: after Rick Douglas Husband (51823) Rickhusband , after Michael P. Anderson (51824) Mikeanderson , after Kalpana Chawla (51826) Kalpanachawla , after Laurel Clark (51827) Laurelclark , after Ilan Ramon ( 51828) Ilanramon and after William Cameron McCool (51829) Williemccool .
Web links
- (51825) Davidbrown in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (51825) David Brown in the Small Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
- Discovery Circumstances of (51825) Davidbrown according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ Asteroids dedicated to fallen Columbia astronauts . NASA press release from August 6, 2003
- ↑ Observations from (51825) Davidbrown on minorplanetcenter.net (English)
- ↑ David Vokrouhlický , Miroslav Brož , Alessandro Morbidelli , William Bottke , David Nesvorný , Daniel Lazzaro, Andy Rivkin: Yarkovsky footprints in the Eos family . ( PDF , English)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ^ Orbits of Asteroids named after Space Shuttle Columbia Crew . Jet Propulsion Laboratory press release from August 10, 2003