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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 40 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1130339747737612 | 2.0113e-08 | |
| a | 2.793867799008043 | 1.2153e-08 | au |
| q | 2.478065816693744 | 5.7518e-08 | au |
| i | 12.82227095342152 | 6.7595e-07 | deg |
| node | 348.6701328562725 | 2.1696e-06 | deg |
| peri | 39.42877486812377 | 9.1236e-06 | deg |
| M | 179.7424953978993 | 1.1795e-05 | deg |
| tp | 2458348.861137534246
(2018-Aug-18.36113753) | 5.376e-05 | TDB |
| period | 1705.717892749667
4.67 | 1.113e-05
3.047e-08 | d
yr |
| n | .2110548300690389 | 1.3771e-09 | deg/d |
| Q | 3.109669781322342 | 1.3527e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.96 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
9.553 |
km |
0.117 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| geometric albedo |
albedo |
0.404 |
|
0.026 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| SMASSII spectral type |
spec_B |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 2917 Sawyer Hogg (1980 RR) Discovered 1980-Sep-02 by Bowell, E. at Flagstaff (AM) |
| Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory. |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
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