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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.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1533836969673037 | 3.6737e-08 | |
| a | 2.724926216561029 | 1.259e-08 | au |
| q | 2.306966959501771 | 1.0395e-07 | au |
| i | 8.594465912642606 | 4.7308e-06 | deg |
| node | 331.7583986545806 | 2.6009e-05 | deg |
| peri | 325.2046743385604 | 3.0347e-05 | deg |
| M | 14.70541434888704 | 1.5979e-05 | deg |
| tp | 2459133.387207002854
(2020-Oct-10.88720700) | 7.2873e-05 | TDB |
| period | 1642.973459010427
4.50 | 1.1387e-05
3.118e-08 | d
yr |
| n | .2191149211971021 | 1.5186e-09 | deg/d |
| Q | 3.142885473620287 | 1.4521e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.84 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
11.848 |
km |
0.171 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
48. |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.288 |
|
0.050 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| SMASSII spectral type |
spec_B |
S |
|
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) |
|
| 2451 Dollfus | Discovered 1980 Sept. 2 by E. Bowell at the Anderson Mesa station of the Lowell Observatory. |
| Named in honor of Audouin Dollfus, astronomer at the Observatoire de Paris, Meudon. Dollfus is renowned for his fundamental work on planetary polarimetry and ground-based imaging, including studies of Saturn's rings, the Martian and lunar surfaces, and the Venus atmosphere. Recently he has worked on the polarimetric properties of minor planets. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC 6531 | Last Updated: 2006-03-21 |
|
Alternate Designations
| 1980 RQ = 1935 QS = 1940 TC = 1953 PO = 1953 SC = 1965 CH = 1974 CL1 |
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