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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 | .3861104275436138 | 1.6459e-08 | |
| a | 2.30243061729565 | 6.7756e-09 | au |
| q | 1.41343814726212 | 3.802e-08 | au |
| i | 5.545382072580439 | 1.2873e-06 | deg |
| node | 278.9320379781237 | 9.5647e-06 | deg |
| peri | 5.255585666593527 | 1.0156e-05 | deg |
| M | 269.5481501594138 | 4.7177e-06 | deg |
| tp | 2459521.121917335412
(2021-Nov-02.62191734) | 1.769e-05 | TDB |
| period | 1276.081035867958
3.49 | 5.6329e-06
1.542e-08 | d
yr |
| n | .2821137450374672 | 1.2453e-09 | deg/d |
| Q | 3.191423087329181 | 9.3918e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.01 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
3.302 |
km |
0.604 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N) |
|
| rotation period |
rot_per |
8.027 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html] |
| geometric albedo |
albedo |
0.425 |
|
0.215 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N) |
|
|
| 5621 Erb (1990 SG4) Discovered 1990-Sep-23 by Lawrence, K. at Palomar |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
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