[ 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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2082638862139143 | 5.5898e-08 | |
| a | 2.666267969807725 | 1.7611e-08 | au |
| q | 2.110980640727885 | 1.4515e-07 | au |
| i | 3.382824370709675 | 5.222e-06 | deg |
| node | 116.4462694382153 | 9.9663e-05 | deg |
| peri | 213.6350719321734 | 0.0001005 | deg |
| M | 83.63046865235528 | 1.3747e-05 | deg |
| tp | 2458831.083618649547
(2019-Dec-13.58361865) | 5.8952e-05 | TDB |
| period | 1590.208681467407
4.35 | 1.5755e-05
4.313e-08 | d
yr |
| n | .2263853821171448 | 2.243e-09 | deg/d |
| Q | 3.221555298887566 | 2.1279e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.03 |
|
n/a |
E2021B55 |
|
| diameter |
diameter |
4.015 |
km |
0.691 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| geometric albedo |
albedo |
0.039 |
|
0.011 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 183071 (2002 RO21) Discovered 2002-Sep-04 by LONEOS at Anderson Mesa |
| Reference: 20080420/Numbers.arc | Last Updated: 2008-04-23 |
|
[ show close-approach data ]
|
