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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 78 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1433914844163607 | 2.9995e-08 | |
a | 2.760288321375082 | 5.6238e-09 | au |
q | 2.364486481555964 | 8.3355e-08 | au |
i | 7.180055425658483 | 3.5389e-06 | deg |
node | 10.36265732590174 | 2.8584e-05 | deg |
peri | 5.386138776507886 | 3.1403e-05 | deg |
M | 129.965250950391 | 1.3897e-05 | deg |
tp | 2458595.779282342985 (2019-Apr-22.27928234) | 6.4141e-05 | TDB |
period | 1675.058962026884 4.59 | 5.1192e-06 1.402e-08 | d yr |
n | .2149178077674272 | 6.5681e-10 | deg/d |
Q | 3.156090161194199 | 6.4302e-09 | au |
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| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
7.86 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
84.794 |
km |
2.501 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
rotation period |
rot_per |
4.8040 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Schober, H.J. (1978) Astron. Astrophys. Suppl. Ser. 34, 377-381.] [Barucci, M.A.; Fulchignoni, M.; Burchi, R.; D'Ambrosio, V. (1985) Icarus 61, 152-162.] [Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.] [Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1987) Icarus 70, 191-245.] [Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1988) Icarus 76, 19-77.] [Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1991) Icarus 89, 44-64.] [Michalowski, T. (1993) Icarus 106, 563-572.] [De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.] [Lagerkvist, C.-I.; Erikson, A.; Debehogne, H.; Festin, L.; et al. (1995) Astron. Astrophys. Suppl. Ser. 113, 115-129.] [Michalowski, T. (1996) Icarus 123, 456-462.] [Torppa, J.; Kaasalainen, M.; Michalowski, T.; Kwiatkowski, T.; et al. (2003) Icarus 164, 346-383.] [Behrend, R. (2007) 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.] [Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.htm] |
geometric albedo |
albedo |
0.204 |
|
0.033 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
B-V |
BV |
0.704 |
|
0.024 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=2.83, mean=10.78, max.=19.01) deg. |
U-B |
UB |
0.242 |
|
0.023 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=3.79, mean=6.51, max.=11.04) deg. |
Tholen spectral type |
spec_T |
M |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
SMASSII spectral type |
spec_B |
X |
|
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) |
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55 Pandora (A858 RB) Discovered 1858-Sep-10 by Searle, G. at Albany |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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