(315898) 2008 QD4
| |
Discovery | |
---|---|
Discovery date | 25 August 2008 |
Designations | |
MPC designation | (315898) 2008 QD4 |
Centaur[1][2][3] | |
Orbital characteristics[1] | |
Epoch 13 January 2016 (JD 2457400.5) | |
Uncertainty parameter 1 | |
Observation arc | 2744 days (7.51 yr) |
Aphelion | 11.364 AU (1.7000 Tm) (Q) |
Perihelion | 5.4531 AU (815.77 Gm) (q) |
8.4087 AU (1.25792 Tm) (a) | |
Eccentricity | 0.35149 (e) |
24.38 yr (8906.16 d) | |
79.666° (M) | |
0° 2m 25.516s / day (n) | |
Inclination | 42.028° (i) |
344.70° (Ω) | |
68.923° (ω) | |
Earth MOID | 4.6941 AU (702.23 Gm) |
Jupiter MOID | 1.46448 AU (219.083 Gm) |
Jupiter Tisserand parameter | 2.387 |
Physical characteristics | |
Dimensions | 31 km[4] |
0.05 (assumed)[4] | |
11.4[1] | |
|
(315898) 2008 QD4, also written as (315898) 2008 QD4, is a centaur with a perihelion greater than Jupiter and a semi-major axis less than Saturn.
Perihelion
(315898) 2008 QD4 is listed as a centaur by the Minor Planet Center (MPC),[3] JPL,[1] and the Deep Ecliptic Survey (DES).[2] Of numbered objects listed as a centaur by all 3 major institutions, (315898) 2008 QD4 has the smallest perihelion distance.[3]
It came to perihelion in August 2010.[1]
References
- 1 2 3 4 5 "JPL Small-Body Database Browser: (2008 QD4)" (last observation: 2008-10-08). Retrieved 8 April 2016.
- 1 2 Marc W. Buie (2008-10-01). "Orbit Fit and Astrometric record for 08QD4". SwRI (Space Science Department). Retrieved 2008-10-17.
- 1 2 3 "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 2008-10-17.
- 1 2 assumed to have an albedo just above a typical comet
External links
- Orbital simulation from JPL (Java) / Ephemeris
- (315898) 2008 QD4 at the JPL Small-Body Database
This article is issued from Wikipedia - version of the 4/8/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.