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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 24 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .137875421929827 | 3.5466e-08 | |
| a | 2.378485537565447 | 1.13e-08 | au |
| q | 2.05055084051962 | 8.2413e-08 | au |
| i | 3.476599095084212 | 4.2744e-06 | deg |
| node | 88.59831666667361 | 6.7955e-05 | deg |
| peri | 157.8901323735502 | 6.9979e-05 | deg |
| M | 257.673795986883 | 1.8246e-05 | deg |
| tp | 2459381.332112740690
(2021-Jun-15.83211274) | 6.9092e-05 | TDB |
| period | 1339.828462405131
3.67 | 9.5483e-06
2.614e-08 | d
yr |
| n | .2686911124083471 | 1.9148e-09 | deg/d |
| Q | 2.706420234611275 | 1.2858e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.7 |
|
n/a |
MPO375721 |
|
| diameter |
diameter |
3.863 |
km |
0.121 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.055 |
|
0.010 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
|
| 101855 (1999 JG118) Discovered 1999-May-13 by LINEAR at Socorro |
| Reference: 20051019/Numbers.arc | Last Updated: 2005-10-26 |
|
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