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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 29 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1862743097783589 | 3.6448e-08 | |
| a | 2.454836682489629 | 8.4344e-09 | au |
| q | 1.997563673840277 | 8.8398e-08 | au |
| i | 8.306766498648219 | 4.5091e-06 | deg |
| node | 209.6058812599975 | 2.6436e-05 | deg |
| peri | 260.9471942865766 | 2.8776e-05 | deg |
| M | 177.5156238352004 | 1.2395e-05 | deg |
| tp | 2458507.766140623594
(2019-Jan-24.26614062) | 4.7256e-05 | TDB |
| period | 1404.857690763186
3.85 | 7.2403e-06
1.982e-08 | d
yr |
| n | .2562537133597003 | 1.3207e-09 | deg/d |
| Q | 2.912109691138981 | 1.0006e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.41 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
3.763 |
km |
0.252 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
140.739 |
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 |
0.261 |
|
0.065 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 9279 Seager | Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring. |
| Sara Seager (b. 1971) is a professor of physics and planetary science at the Massachusetts Institute of Technology. An expert and textbook editor in the field of exoplanets, she is also dedicated to innovative small satellite technologies for exoplanet transit and asteroid detections. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC batch dated 2014-07-12 | Last Updated: 2014-08-13 |
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