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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 39 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1960407134666374 | 2.8378e-08 | |
| a | 2.422186649089829 | 7.4935e-09 | au |
| q | 1.947339450252895 | 6.8367e-08 | au |
| i | 3.302099235749678 | 3.4421e-06 | deg |
| node | 10.91184187889535 | 5.8167e-05 | deg |
| peri | 229.6532714878195 | 5.9003e-05 | deg |
| M | 239.0520372013716 | 1.214e-05 | deg |
| tp | 2459463.100281568700
(2021-Sep-05.60028157) | 4.7611e-05 | TDB |
| period | 1376.923575323093
3.77 | 6.3896e-06
1.749e-08 | d
yr |
| n | .2614524193294653 | 1.2133e-09 | deg/d |
| Q | 2.897033847926763 | 8.9625e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.9 |
|
n/a |
MPO502177 |
|
| diameter |
diameter |
10.218 |
km |
0.772 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
3.8084 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Higgins, D.; Pravec, P.; Kusnirak, P.; Galad, A.; et al. (2006) Minor Planet Bull. 33, 89-91.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2006) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2010) http://www.asu.cas.cz/~ppravec/neo.htm]
[Higgins, D.; Oey, J.; Pravec, P. (2011) Minor Planet Bull. 38, 46-49.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Husarik, M. (2014) ACM 2014 Abstracts, 246.]
[Li, B.; Zhao, H.; Lu, Hao; H.; Xianming L. (2015) Minor Planet Bull. 42, 190.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Franco, L.; Baj, G.; Tinella, V.; Bachini, M.; et al. (2017) Minor Planet Bull. 44, 311-312.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Husarik, M. (2018) Contrib. Astron. Obs. Skalnate Pleso 48, 319-328. ArXiv:1803:00238v1.] |
| geometric albedo |
albedo |
0.281 |
|
0.071 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
1.059 |
|
0.029 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=11.89 deg. |
| U-B |
UB |
0.580 |
|
0.047 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=11.89 deg. |
| Tholen spectral type |
spec_T |
A |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 4 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
A |
|
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) |
|
| 2501 Lohja (1942 GD) Discovered 1942-Apr-14 by Oterma, L. at Turku |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ show close-approach data ]
Alternate Designations
| 1942 GD = 1931 MD = 1935 OG = 1938 DX = 1953 EW1 = 1957 FC = 1969 PU = 1972 GE2 = 1973 SZ5 = 1974 YF = 1976 JS8 = 1979 BQ = 1981 UF = 3110 T-3 = A912 JD |
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