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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 53 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1731253121720415 | 2.8359e-08 | |
| a | 2.475825427072154 | 5.1987e-09 | au |
| q | 2.047197377126809 | 6.9887e-08 | au |
| i | 5.101355255247267 | 2.9898e-06 | deg |
| node | 148.4289077155848 | 3.8119e-05 | deg |
| peri | 139.9952388563607 | 3.9472e-05 | deg |
| M | 349.7874174611131 | 1.1153e-05 | deg |
| tp | 2459040.865611312436
(2020-Jul-10.36561131) | 4.4116e-05 | TDB |
| period | 1422.9133539087
3.90 | 4.4817e-06
1.227e-08 | d
yr |
| n | .2530020531546006 | 7.9687e-10 | deg/d |
| Q | 2.904453477017498 | 6.0987e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.1 |
|
n/a |
MPO492752 |
IRAS observations used: 17 |
| diameter |
diameter |
97.109 |
km |
0.850 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
12.054 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Published Reference List:
[Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D.; Roy, R.; Dyvig, R.; Reddy, V.; et al. (2007) Minor Planet Bull. 34, 99.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Marciniak, A.; Pilcher, F.; Oszkiewicz, D.; Santana-Ros, T.; et al. (2015) Planet. Space Sci. 118, 256-266.]
[Pilcher, F.; Martinez, L. (2015) Minor Planet Bull. 42, 239.] |
| geometric albedo |
albedo |
0.049 |
|
0.007 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| B-V |
BV |
0.624 |
|
0.017 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=1.36, mean=6.66, max.=21.17) deg. |
| U-B |
UB |
0.235 |
|
0.021 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=1.36, mean=6.66, max.=21.17) deg. |
| Tholen spectral type |
spec_T |
FP |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
B |
|
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) |
|
| 335 Roberta (A892 RB) Discovered 1892-Sep-01 by Staus, A. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| A892 RB = 1956 EB1 = 1973 KE = A910 EC |
|
|
