[ hide orbit diagram ]
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 33 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .244424987056634 | 4.0445e-08 | |
| a | 2.662166212356801 | 1.1346e-08 | au |
| q | 2.011466270358881 | 1.0852e-07 | au |
| i | 12.94111865338212 | 4.3794e-06 | deg |
| node | 34.0491614585562 | 1.6611e-05 | deg |
| peri | 308.5631156587335 | 1.7782e-05 | deg |
| M | 225.8485353048104 | 8.2835e-06 | deg |
| tp | 2459591.713164098970
(2022-Jan-12.21316410) | 3.8401e-05 | TDB |
| period | 1586.540553688499
4.34 | 1.0143e-05
2.777e-08 | d
yr |
| n | .2269087916870749 | 1.4506e-09 | deg/d |
| Q | 3.31286615435472 | 1.412e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.1 |
|
n/a |
MPO467902 |
|
| diameter |
diameter |
6.095 |
km |
0.203 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.157 |
|
0.014 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 17977 (1999 JR54) Discovered 1999-May-10 by LINEAR at Socorro |
| Reference: 20001013/Numbers.arc | Last Updated: 2004-04-19 |
|
[ show close-approach data ]
Alternate Designations
| 1999 JR54 = 1991 RT24 = 1998 FC87 |
|
|
