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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 12 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2076425810387423 | 4.3255e-08 | |
| a | 2.35326941046398 | 9.5985e-09 | au |
| q | 1.86463047619572 | 1.0338e-07 | au |
| i | 1.433008892414868 | 5.5407e-06 | deg |
| node | 219.3528641080943 | 0.00022089 | deg |
| peri | 64.18953447805718 | 0.0002215 | deg |
| M | 351.46605710553 | 1.5011e-05 | deg |
| tp | 2459031.757420327204
(2020-Jul-01.25742033) | 5.5021e-05 | TDB |
| period | 1318.578230126781
3.61 | 8.0673e-06
2.209e-08 | d
yr |
| n | .2730213435765476 | 1.6704e-09 | deg/d |
| Q | 2.84190834473224 | 1.1592e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
17.6 |
|
n/a |
MPO427265 |
|
|
| 215145 (1999 UM57) Discovered 1999-Oct-29 by Spacewatch at Kitt Peak |
| Reference: 20090607/Numbers.arc | Last Updated: 2009-06-08 |
|
Alternate Designations
| 1999 UM57 = 1999 WA23 = 1999 WV26 = 2002 NO46 |
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