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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 26 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .05908625811706605 | 3.4276e-08 | |
| a | 2.40878587512648 | 8.6427e-09 | au |
| q | 2.266459731160014 | 8.1255e-08 | au |
| i | 6.605142956010133 | 4.6127e-06 | deg |
| node | 176.404783700213 | 2.8021e-05 | deg |
| peri | 255.8298983009163 | 4.7359e-05 | deg |
| M | 186.2536599861899 | 3.7769e-05 | deg |
| tp | 2459859.535614706154
(2022-Oct-07.03561471) | 0.00014358 | TDB |
| period | 1365.512627634962
3.74 | 7.3491e-06
2.012e-08 | d
yr |
| n | .2636372544013101 | 1.4189e-09 | deg/d |
| Q | 2.551112019092946 | 9.1533e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.93 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
2.470 |
km |
0.468 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
3.74421 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
| geometric albedo |
albedo |
0.382 |
|
0.192 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 70477 (1999 TC38) Discovered 1999-Oct-01 by CSS at Catalina |
| Reference: 20031109/Numbers.arc | Last Updated: 2004-04-19 |
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