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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 102 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .110441968518672 | 2.7492e-08 | |
| a | 3.094249386944294 | 6.4924e-09 | au |
| q | 2.752514393562472 | 8.5014e-08 | au |
| i | 7.478465148069584 | 2.8168e-06 | deg |
| node | 128.6006923568405 | 2.2073e-05 | deg |
| peri | 343.3664555839664 | 2.5384e-05 | deg |
| M | 309.8657102891241 | 1.273e-05 | deg |
| tp | 2459277.362261994788
(2021-Mar-03.86226199) | 7.0623e-05 | TDB |
| period | 1988.06874282896
5.44 | 6.2571e-06
1.713e-08 | d
yr |
| n | .1810802575607779 | 5.6992e-10 | deg/d |
| Q | 3.435984380326115 | 7.2095e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
6.4 |
|
n/a |
MPO492748 |
IRAS observations used: 19 |
| magnitude slope |
G |
0.18 |
|
n/a |
PDS3 (MPC 17257) |
Fit |
| diameter |
diameter |
303.918 |
km |
3.501 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
5.6304 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Zappala, V.; Di Martino, M.; Cacciatori, S. (1983) Icarus 56, 319-324.]
[Michalowski, T.; Velichko, F.P.; Di Martino, M.; Krugly, et al. (1995) Icarus 118, 292-301.]
[Lopez-Gonzalez, M.J.; Rodriguez, E. (1999) Astron. Astrophys. Suppl. Ser. 139, 565-574.]
[Kaasalainen, M.; Torppa, J.; Piironen, J. (2002) Icarus 159, 369-395.]
[Michalowski, T.; Kwiatkowski, T.; Pych, W.; Kryszczynska, A.; et al. (2004) Astron. Astrophys. 416, 353-366.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
[Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.] |
| geometric albedo |
albedo |
0.057 |
|
0.007 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| B-V |
BV |
0.679 |
|
0.017 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=6; phase (min.=3.33, mean=11.85, max.=20.86) deg. |
| U-B |
UB |
0.338 |
|
0.028 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=5; phase (min.=3.33, mean=12.40, max.=20.86) deg. |
| Tholen spectral type |
spec_T |
CF |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
C |
|
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) |
|
| 52 Europa (A858 CA) Discovered 1858-Feb-04 by Goldschmidt, H. at Paris |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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