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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 37 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .121904591652365 | 2.9017e-08 | |
a | 3.05619917056239 | 1.3171e-08 | au |
q | 2.683634458666685 | 8.6957e-08 | au |
i | 11.05566247527096 | 3.8983e-06 | deg |
node | 188.4142303834887 | 1.5964e-05 | deg |
peri | 107.0094819210117 | 2.2517e-05 | deg |
M | 86.77168474211888 | 1.568e-05 | deg |
tp | 2458530.122612056828 (2019-Feb-15.62261206) | 8.4583e-05 | TDB |
period | 1951.510566641638 5.34 | 1.2615e-05 3.454e-08 | d yr |
n | .184472483087563 | 1.1925e-09 | deg/d |
Q | 3.428763882458095 | 1.4777e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2457253.5 (2015-Aug-19.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .124551482034263 | 2.8836e-08 | |
q | 2.673891059388051 | 8.6672e-08 | au |
tp | 2456582.504345335634 (2013-Oct-17.00434534) | 8.2691e-05 | TDB |
node | 188.4757797752138 | 1.5937e-05 | deg |
peri | 107.6099215379328 | 2.2316e-05 | deg |
i | 11.0672412952297 | 3.9031e-06 | deg |
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| | Orbit Determination Parameters
Additional Information
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Orbit Covariance (6×6)
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|
e |
q |
tp |
node |
peri |
i |
e |
8.314896859793361E-16 |
-2.477942599329378E-15 |
2.976148180532997E-13 |
9.895558497833684E-16 |
3.894973112611342E-14 |
-2.446628359497661E-16 |
q |
-2.477942599329378E-15 |
7.512121812751819E-15 |
-9.684645397457965E-13 |
-3.015029470191918E-15 |
-1.232769742940314E-13 |
1.007145192390081E-15 |
tp |
2.976148180532997E-13 |
-9.684645397457965E-13 |
6.837770522781345E-9 |
-5.730797547605644E-12 |
1.299737348497117E-9 |
8.578159053406853E-13 |
node |
9.895558497833684E-16 |
-3.015029470191918E-15 |
-5.730797547605644E-12 |
2.53973208877057E-10 |
-2.499993435962454E-10 |
2.758162372147327E-12 |
peri |
3.894973112611342E-14 |
-1.232769742940314E-13 |
1.299737348497117E-9 |
-2.499993435962454E-10 |
4.980245562397358E-10 |
-2.520003163502088E-12 |
i |
-2.446628359497661E-16 |
1.007145192390081E-15 |
8.578159053406853E-13 |
2.758162372147327E-12 |
-2.520003163502088E-12 |
1.523434974003283E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
12.1 |
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n/a |
MPO502200 |
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diameter |
diameter |
13.711 |
km |
0.369 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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geometric albedo |
albedo |
0.215 |
|
0.065 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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|
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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[ show close-approach data ]
Alternate Designations
1987 QD6 = 1971 QV1 = 1971 SB1 = 1990 BN1 |
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