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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.
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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .386110791799271 | 3.6835e-08 | |
| a | 2.302654804042703 | 7.2669e-09 | au |
| q | 1.413574934413379 | 8.4277e-08 | au |
| i | 5.545782658506289 | 3.4903e-06 | deg |
| node | 278.9351731159956 | 4.4088e-05 | deg |
| peri | 5.232945052035737 | 4.4592e-05 | deg |
| M | 213.1640743120867 | 9.0591e-06 | deg |
| tp | 2459521.060854712558
(2021-Nov-02.56085471) | 3.313e-05 | TDB |
| period | 1276.267417653816
3.49 | 6.0416e-06
1.654e-08 | d
yr |
| n | .2820725460983671 | 1.3353e-09 | deg/d |
| Q | 3.191734673672026 | 1.0073e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.0 |
|
n/a |
MPO452246 |
|
| 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. 2019-August); 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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