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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 110 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .02960704630694269 | 3.4757e-08 | |
| a | 3.41331879437758 | 1.6019e-08 | au |
| q | 3.312260506772085 | 1.1571e-07 | au |
| i | 6.689400960499268 | 4.2274e-06 | deg |
| node | 242.6418846439799 | 3.4918e-05 | deg |
| peri | 235.4154932634464 | 8.6969e-05 | deg |
| M | 79.19033946329785 | 7.8038e-05 | deg |
| tp | 2458493.820411883094
(2019-Jan-10.32041188) | 0.00050029 | TDB |
| period | 2303.369993844071
6.31 | 1.6214e-05
4.439e-08 | d
yr |
| n | .1562927367127847 | 1.1002e-09 | deg/d |
| Q | 3.514377081983074 | 1.6493e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
8.4 |
|
n/a |
MPO384747 |
|
| diameter |
diameter |
138.699 |
km |
3.446 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
11.04 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Zappala, V.; Di Martino, M.; Cellino, A.; Farinella, P.; et al. (1989) Icarus 82, 354-368.]
[Lagerkvist, C.-I.; Erikson, A.; Lahulla, F.; Di Martino, M.; et al. (2001) Icarus 149, 190-197.]
[Behrend, R. (2003) 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 |
0.044 |
|
0.004 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.691 |
|
0.018 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=4.23, mean=5.51, max.=6.93) deg. |
| U-B |
UB |
0.229 |
|
0.038 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=4.23, mean=5.51, max.=6.93) deg. |
| Tholen spectral type |
spec_T |
P |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
|
| 420 Bertholda (A896 RC) Discovered 1896-Sep-07 by Wolf, M. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
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