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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 38 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2087189391954136 | 3.8361e-08 | |
| a | 2.243830498757328 | 5.7655e-09 | au |
| q | 1.775500577322382 | 8.519e-08 | au |
| i | 7.511422524115464 | 4.0002e-06 | deg |
| node | 160.635566584997 | 2.2352e-05 | deg |
| peri | 203.059329301039 | 2.3444e-05 | deg |
| M | 206.3500684817295 | 8.5431e-06 | deg |
| tp | 2459724.478379361306
(2022-May-24.97837936) | 3.0238e-05 | TDB |
| period | 1227.675240113206
3.36 | 4.7317e-06
1.295e-08 | d
yr |
| n | .2932371593376795 | 1.1302e-09 | deg/d |
| Q | 2.712160420192273 | 6.9688e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.80 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
6.262 |
km |
0.129 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
3.0980 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2005) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm]
[Dykhuis, M.J.; Molnar, L.A.; Gates, C.J.; Gonzales, J.A.; et al. (2016) Icarus 267, 174-203.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] |
| geometric albedo |
albedo |
0.289 |
|
0.018 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 3918 Brel (1988 PE1) Discovered 1988-Aug-13 by Elst, E. W. and Sause, G. at Haute Provence |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| 1988 PE1 = 1931 VF1 = 1951 RX1 = 1968 UN3 = 1971 OK = 1978 TE4 = 1980 DQ4 |
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