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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1545878960895431 | 4.7293e-08 | |
| a | 2.38320888352447 | 1.4533e-08 | au |
| q | 2.014793636278513 | 1.0725e-07 | au |
| i | 3.127478341744452 | 5.9582e-06 | deg |
| node | 170.8721646327839 | 9.7694e-05 | deg |
| peri | 311.716785557937 | 0.00010209 | deg |
| M | 144.2170712276053 | 2.9132e-05 | deg |
| tp | 2458662.161101794813
(2019-Jun-27.66110179) | 0.00010607 | TDB |
| period | 1343.821516441742
3.68 | 1.2293e-05
3.366e-08 | d
yr |
| n | .2678927190816465 | 2.4505e-09 | deg/d |
| Q | 2.751624130770427 | 1.678e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
17.85 |
|
n/a |
E2021B25 |
|
|
| 312090 (2007 TW99) Discovered 2007-Oct-08 by Spacewatch at Kitt Peak |
| Reference: 20120109/Numbers.arc | Last Updated: 2012-01-11 |
|
Alternate Designations
| 2007 TW99 = 2003 SB348 = 2005 ET320 = 2005 EW212 |
|
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