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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 96 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2347517252651223 | 2.9204e-08 | |
| a | 2.625114956004941 | 4.2703e-09 | au |
| q | 2.008864691063506 | 7.7608e-08 | au |
| i | 10.11400359847305 | 3.5681e-06 | deg |
| node | 66.84479968136846 | 1.8655e-05 | deg |
| peri | 60.63247349055822 | 2.0053e-05 | deg |
| M | 68.51282979857849 | 7.8331e-06 | deg |
| tp | 2458704.841532712161
(2019-Aug-09.34153271) | 3.3559e-05 | TDB |
| period | 1553.534550193551
4.25 | 3.7907e-06
1.038e-08 | d
yr |
| n | .2317296386843463 | 5.6543e-10 | deg/d |
| Q | 3.241365220946377 | 5.2727e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
6.95 |
|
n/a |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 16 |
| diameter |
diameter |
107.53 |
km |
2.2 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 16 |
| rotation period |
rot_per |
12.312 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Yang, X.-y.; Zhang, Y.-y.; Li, X.-q. (1965) Acta Astron. Sin. 13, 66-74.]
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1988) Astron. Astrophys. Suppl. Ser. 73, 395-405.]
[Michalowski, T. (1993) Icarus 106, 563-572.]
[Hainaut-Rouelle, M.-C.; Hainaut, O.R.; Detal, A. (1995) Astron. Astrophys. Suppl. Ser. 112, 125-142.]
[Lagerkvist, C.-I.; Erikson, A.; Debehogne, H.; Festin, L.; et al. (1995) Astron. Astrophys. Suppl. Ser. 113, 115-129.]
[Torppa, J.; Kaasalainen, M.; Michalowski, T.; Kwiatkowski, T.; et al. (2003) Icarus 164, 346-383.]
[Pilcher, F. (2010) Minor Planet Bull. 37, 21-24.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Viikinkoski, M.; Hanus, J.; Kaasalainen, M.; Marchis, F.; Durech, J. (2017) Astron. Astrophys. 607, A117.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
| geometric albedo |
albedo |
0.2536 |
|
0.011 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 16 |
| B-V |
BV |
0.859 |
|
0.030 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=10; phase (min.=1.62, mean=16.25, max.=28.78) deg. |
| U-B |
UB |
0.442 |
|
0.034 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=4.51, mean=20.02, max.=28.78) 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 |
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) |
|
| 23 Thalia (A852 XA) Discovered 1852-Dec-15 by Hind, J. R. at London |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ show close-approach data ]
Alternate Designations
| A852 XA = 1938 CL = 1974 QT2 |
|
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