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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2812789546298221 | 3.6366e-08 | |
| a | 2.400869300106839 | 1.0661e-08 | au |
| q | 1.725555293169955 | 8.9293e-08 | au |
| i | 21.07474448286591 | 4.1567e-06 | deg |
| node | 233.9980084043111 | 1.1163e-05 | deg |
| peri | 293.5209167097534 | 1.378e-05 | deg |
| M | 189.2036308100158 | 1.1625e-05 | deg |
| tp | 2459645.154973763053
(2022-Mar-06.65497376) | 4.6325e-05 | TDB |
| period | 1358.786440574455
3.72 | 9.0507e-06
2.478e-08 | d
yr |
| n | .2649422964861222 | 1.7648e-09 | deg/d |
| Q | 3.076183307043723 | 1.366e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.1 |
|
n/a |
MPO395272 |
|
| diameter |
diameter |
6.178 |
km |
0.184 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| geometric albedo |
albedo |
0.320 |
|
0.043 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
|
| 27708 (1987 WP) Discovered 1987-Nov-20 by Alu, J., Helin, E. F. at Palomar |
| Reference: 20010902/Numbers.arc | Last Updated: 2004-04-19 |
|
Alternate Designations
| 1987 WP = 1985 KF1 = 1998 VX |
|
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