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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.
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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1219045866646873 | 3.0341e-08 | |
| a | 3.056199172866904 | 1.3736e-08 | au |
| q | 2.683634475933605 | 9.2156e-08 | au |
| i | 11.05566412114694 | 4.373e-06 | deg |
| node | 188.4142267303615 | 1.6695e-05 | deg |
| peri | 107.0094804357065 | 2.4736e-05 | deg |
| M | 86.77168875453424 | 1.7263e-05 | deg |
| tp | 2458530.122589774046
(2019-Feb-15.62258977) | 9.3584e-05 | TDB |
| period | 1951.51056884893
5.34 | 1.3156e-05
3.602e-08 | d
yr |
| n | .1844724828789119 | 1.2436e-09 | deg/d |
| Q | 3.428763869800203 | 1.541e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Orbital Elements at Epoch 2456964.5 (2014-Nov-03.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1245582719100989 | 3.0305e-08 | |
| q | 2.674528687698841 | 9.2523e-08 | au |
| tp | 2456582.977242172380
(2013-Oct-17.47724217) | 9.312e-05 | TDB |
| node | 188.4733143174493 | 1.6667e-05 | deg |
| peri | 107.7268427803096 | 2.447e-05 | deg |
| i | 11.06645513380522 | 4.3789e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
9.18414809766804E-16 |
-2.779925374640155E-15 |
6.95825161848711E-13 |
2.016614444082407E-15 |
1.198220452441157E-13 |
-5.434309778135724E-16 |
| q |
-2.779925374640155E-15 |
8.560433399439246E-15 |
-2.35017991281673E-12 |
-6.56786297854793E-15 |
-4.03949601109234E-13 |
1.986961020366017E-15 |
| tp |
6.95825161848711E-13 |
-2.35017991281673E-12 |
8.671260715745372E-9 |
-6.802808749144174E-12 |
1.677616854621613E-9 |
1.992883780979799E-12 |
| node |
2.016614444082407E-15 |
-6.56786297854793E-15 |
-6.802808749144174E-12 |
2.777967691495425E-10 |
-2.735567754183375E-10 |
-6.837474768513905E-12 |
| peri |
1.198220452441157E-13 |
-4.03949601109234E-13 |
1.677616854621613E-9 |
-2.735567754183375E-10 |
5.98768548919869E-10 |
7.109293865071613E-12 |
| i |
-5.434309778135724E-16 |
1.986961020366017E-15 |
1.992883780979799E-12 |
-6.837474768513905E-12 |
7.109293865071613E-12 |
1.917441731976527E-11 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.1 |
|
n/a |
MPO502200 |
|
| diameter |
diameter |
13.711 |
km |
0.369 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.215 |
|
0.065 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 4897 Tomhamilton | Discovered 1987 Aug. 22 by E. F. Helin at Palomar. |
| Thomas William Hamilton (b. 1939) determined radar and fuel requirements for the Apollo Project. Later he wrote shows (in a dozen languages and also for the deaf) for programmable planetaria, taught astronomy for 32 years and trained students to enter the planetarium field. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20091004/MPCPages.arc | Last Updated: 2009-10-06 |
|
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Alternate Designations
| 1987 QD6 = 1971 QV1 = 1971 SB1 = 1990 BN1 |
|
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