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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .069522984604346 | 3.9103e-08 | |
| a | 2.19554815008617 | 6.0249e-09 | au |
| q | 2.042907089849629 | 8.6109e-08 | au |
| i | 2.732588303305785 | 4.3504e-06 | deg |
| node | 241.1206227192783 | 6.8076e-05 | deg |
| peri | 307.9603927856236 | 7.3681e-05 | deg |
| M | 262.6163386142895 | 3.0144e-05 | deg |
| tp | 2459321.937449892617
(2021-Apr-17.43744989) | 9.9941e-05 | TDB |
| period | 1188.263824904018
3.25 | 4.8912e-06
1.339e-08 | d
yr |
| n | .3029630225670457 | 1.2471e-09 | deg/d |
| Q | 2.348189210322711 | 6.4438e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.1 |
|
n/a |
MPO448939 |
|
| diameter |
diameter |
6.559 |
km |
0.196 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
5.2564 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Higgins, D.; Pravec, P.; Kusnirak, P.; Hornoch, K.; Brinsfield, J.W.; Allen, B.; Warner, B.D. (2008) Minor Planet Bull. 35, 123-126.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Oey, J.; Inasaridze, R.Y.; Kvaratskhelia, O.I.; Ayvazian, V.; et al. (2013) Minor Planet Bull. 40, 169-172.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm] |
| geometric albedo |
albedo |
0.259 |
|
0.043 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| 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) |
|
| 2709 Sagan (1982 FH) Discovered 1982-Mar-21 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 |
|
Alternate Designations
| 1982 FH = 1951 WF1 = 1959 CC = 1959 EA1 = 1964 WT = 1982 FE2 |
|
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