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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1413061472048993 | 1.7153e-08 | |
| a | 2.809182328590425 | 9.8835e-09 | au |
| q | 2.412227596941225 | 4.7349e-08 | au |
| i | 17.30653701412801 | 3.5563e-07 | deg |
| node | 115.7094551153558 | 1.5444e-06 | deg |
| peri | 252.4648500717079 | 8.3611e-06 | deg |
| M | 196.8688685419057 | 1.1373e-05 | deg |
| tp | 2459979.796393170547
(2023-Feb-04.29639317) | 5.6673e-05 | TDB |
| period | 1719.761881339398
4.71 | 9.076e-06
2.485e-08 | d
yr |
| n | .2093313056337905 | 1.1047e-09 | deg/d |
| Q | 3.206137060239626 | 1.128e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Orbital Elements at Epoch 2456763.5 (2014-Apr-16.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1378339629488184 | 1.695e-08 | |
| q | 2.423125153037135 | 4.6683e-08 | au |
| tp | 2456534.431558953705
(2013-Aug-29.93155895) | 4.9537e-05 | TDB |
| node | 115.819233059866 | 1.5421e-06 | deg |
| peri | 251.7756865161073 | 8.6276e-06 | deg |
| i | 17.32699672852018 | 3.5673e-07 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
2.873038092357544E-16 |
-7.784256540664579E-16 |
4.900043797351419E-13 |
9.550442780096879E-15 |
6.146965386767477E-14 |
2.35378121343924E-15 |
| q |
-7.784256540664579E-16 |
2.179340757311577E-15 |
-1.234609885598467E-12 |
-2.61752109796607E-14 |
-1.450524157498965E-13 |
-6.575851175593746E-15 |
| tp |
4.900043797351419E-13 |
-1.234609885598467E-12 |
2.453917001051399E-9 |
5.548242181658257E-12 |
4.157406195566301E-10 |
-4.260263522212126E-12 |
| node |
9.550442780096879E-15 |
-2.61752109796607E-14 |
5.548242181658257E-12 |
2.378093880160752E-12 |
-1.442490858929563E-12 |
3.677701262987226E-13 |
| peri |
6.146965386767477E-14 |
-1.450524157498965E-13 |
4.157406195566301E-10 |
-1.442490858929563E-12 |
7.443493353860213E-11 |
-1.303066585488603E-12 |
| i |
2.35378121343924E-15 |
-6.575851175593746E-15 |
-4.260263522212126E-12 |
3.677701262987226E-13 |
-1.303066585488603E-12 |
1.272569868287626E-13 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
10.34 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
52.464 |
km |
0.268 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
16.67 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Hawkins, S.; Ditteon, R. (2008) Minor Planet Bull. 35, 1-4.]
[Stephens, R.D. (2012) Posting on CALL web site. http://www.minorplanet.info/call.html] |
| geometric albedo |
albedo |
0.038 |
|
0.004 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| SMASSII spectral type |
spec_B |
Xc |
|
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) |
|
| 1428 Mombasa (1937 NO) Discovered 1937-Jul-05 by Jackson, C. at Johannesburg (UO) |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| 1937 NO = 1933 WO = 1949 FA = 1957 YZ |
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