[ hide orbit diagram ]
For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
[ revert to old Java-based viewer ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 171 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .0722635740642559 | 2.808e-08 | |
| a | 3.109514976857461 | 7.2863e-09 | au |
| q | 2.884810311023409 | 8.6753e-08 | au |
| i | 6.547932948441979 | 3.0468e-06 | deg |
| node | 183.5526367646863 | 2.8409e-05 | deg |
| peri | 252.8414897414222 | 3.6585e-05 | deg |
| M | 141.5085436243186 | 2.3204e-05 | deg |
| tp | 2458213.241122216813
(2018-Apr-04.74112222) | 0.00012887 | TDB |
| period | 2002.799186135091
5.48 | 7.0395e-06
1.927e-08 | d
yr |
| n | .1797484253499779 | 6.3178e-10 | deg/d |
| Q | 3.334219642691513 | 7.8128e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
7.1 |
|
n/a |
MPO473760 |
IRAS observations used: 10 |
| diameter |
diameter |
216.473 |
km |
4.757 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
11.89 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Published Reference List:
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[Debehogne, H.; Lagerkvist, C.-I.; Zappala, V. (1982) Astron. Astrophys. Suppl. Ser. 50, 277-281.]
[Schober, H.J.; Schroll, A. (1982) Astron. Astrophys. 107, 402-405.]
[Higgins, D.; Pilcher, F. (2009) Minor Planet Bull. 36, 143-144.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Viikinkoski, M.; Hanus, J.; Kaasalainen, M.; Marchis, F.; Durech, J. (2017) Astron. Astrophys. 607, A117.] |
| geometric albedo |
albedo |
0.065 |
|
0.008 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.716 |
|
0.012 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=9; phase (min.=3.85, mean=7.88, max.=12.86) deg. |
| U-B |
UB |
0.442 |
|
0.016 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=9; phase (min.=3.85, mean=7.88, max.=12.86) deg. |
| Tholen spectral type |
spec_T |
CG |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 6 color indices |
| SMASSII spectral type |
spec_B |
Ch |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 48 Doris (A857 SA) Discovered 1857-Sep-19 by Goldschmidt, H. at Paris |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ show close-approach data ]
|
