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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 30 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1736397493863122 | 3.6355e-08 | |
| a | 2.437593040715584 | 6.3475e-09 | au |
| q | 2.014329996019911 | 8.8545e-08 | au |
| i | 1.95534860350594 | 4.1809e-06 | deg |
| node | 309.0740384943005 | 0.0001024 | deg |
| peri | 345.4243609520597 | 0.00010314 | deg |
| M | 65.41542012883394 | 1.2133e-05 | deg |
| tp | 2458947.909005358210
(2020-Apr-08.40900536) | 4.6942e-05 | TDB |
| period | 1390.081388943995
3.81 | 5.4297e-06
1.487e-08 | d
yr |
| n | .2589776417864869 | 1.0116e-09 | deg/d |
| Q | 2.860856085411257 | 7.4497e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.52 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
2.822 |
km |
0.438 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.321 |
|
0.101 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 7861 Messenger | Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey. |
| Scott R. Messenger (b. 1969) is a space scientist at NASA's Johnson Space Center. He pioneered research on the identification of pre-solar molecular cloud material in interplanetary dust particles. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20060809/MPCPages.arc | Last Updated: 2007-08-08 |
|
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