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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 97 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .06179647823850151 | 2.4088e-08 | |
| a | 2.382167594956203 | 3.5934e-09 | au |
| q | 2.234958027014029 | 5.7436e-08 | au |
| i | 9.450269744464929 | 2.708e-06 | deg |
| node | 239.8486148180169 | 2.0493e-05 | deg |
| peri | 140.0274040618576 | 3.534e-05 | deg |
| M | 130.5139485708488 | 2.8841e-05 | deg |
| tp | 2458513.631895713067
(2019-Jan-30.13189571) | 0.00010743 | TDB |
| period | 1342.94088457641
3.68 | 3.0387e-06
8.32e-09 | d
yr |
| n | .2680683894090774 | 6.0656e-10 | deg/d |
| Q | 2.529377162898378 | 3.8155e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
7.3 |
|
n/a |
MPO502155 |
IRAS observations used: 18 |
| magnitude slope |
G |
0.27 |
|
n/a |
PDS3 (MPC 17258) |
Fit |
| diameter |
diameter |
111.332 |
km |
1.231 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
24.0055 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[Zeigler, K.W.; Florence, W.B. (1985) Icarus 62, 512-517.]
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.]
[Harris, A.W.; Young, J.W.; Bowell, E.; Tholen, D.J. (1999) Icarus 142, 173-201.]
[Torppa, J.; Kaasalainen, M.; Michalowski, T.; Kwiatkowski, T.; et al. (2003) Icarus 164, 346-383.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.164 |
|
0.029 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.871 |
|
0.013 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=6; phase (min.=6.79, mean=16.53, max.=26.12) deg. |
| U-B |
UB |
0.440 |
|
0.040 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=6; phase (min.=6.79, mean=18.98, max.=26.12) deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
Sl |
|
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) |
|
| 230 Athamantis (A882 RA) Discovered 1882-Sep-03 by De Ball, K. at Bothkamp |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
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