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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 42 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .01856529325509974 | 3.4929e-08 | |
| a | 2.887111327273469 | 9.4244e-09 | au |
| q | 2.833511258822517 | 1.0311e-07 | au |
| i | 2.353749031848881 | 3.902e-06 | deg |
| node | 35.69380702559577 | 8.5808e-05 | deg |
| peri | 112.4582715657607 | 0.00013287 | deg |
| M | 277.763818900614 | 0.0001013 | deg |
| tp | 2459409.811697529048
(2021-Jul-14.31169753) | 0.00050421 | TDB |
| period | 1791.817289428549
4.91 | 8.7735e-06
2.402e-08 | d
yr |
| n | .2009133420711729 | 9.8376e-10 | deg/d |
| Q | 2.940711395724421 | 9.5993e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.6 |
|
n/a |
MPO265959 |
|
| diameter |
diameter |
33.73 |
km |
1.4 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 17 |
| rotation period |
rot_per |
8.919 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Slivan, S.M.; Binzel, R.P. (1996) Icarus 124, 452-470.]
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Slivan, S.M.; Binzel, R.P.; Crespo da Silva, L.D.; Kaasalainen, M.; et al. (2003) Icarus 162, 285-307.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.2029 |
|
0.018 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 17 |
| B-V |
BV |
0.806 |
|
0.042 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=3.97, mean=9.67, max.=13.56) deg. |
| U-B |
UB |
0.440 |
|
0.020 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=3.97 deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
Sq |
|
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) |
|
| 720 Bohlinia (A911 UL) Discovered 1911-Oct-18 by Kaiser, F. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| A911 UL = 1948 DD = 1951 XH1 = A901 TE |
|
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