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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 20 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .08108060280782084 | 4.3136e-08 | |
a | 3.157456977928335 | 2.1367e-08 | au |
q | 2.901448462818145 | 1.3666e-07 | au |
i | 22.85397102737472 | 4.2158e-06 | deg |
node | 153.812520013358 | 1.222e-05 | deg |
peri | 63.93922603212503 | 3.159e-05 | deg |
M | 52.10784172108237 | 2.7063e-05 | deg |
tp | 2458903.876760216670 (2020-Feb-24.37676022) | 0.00015515 | TDB |
period | 2049.295514743891 5.61 | 2.0802e-05 5.695e-08 | d yr |
n | .1756701253723238 | 1.7832e-09 | deg/d |
Q | 3.413465493038524 | 2.31e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2457490.5 (2016-Apr-12.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .08036558289662356 | 4.3055e-08 | |
q | 2.903795721091045 | 1.3649e-07 | au |
tp | 2456849.067513077729 (2014-Jul-10.56751308) | 0.00016549 | TDB |
node | 153.8531240755851 | 1.2223e-05 | deg |
peri | 62.82430697827358 | 3.1859e-05 | deg |
i | 22.84956701468569 | 4.2155e-06 | deg |
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| | Orbit Determination Parameters
Additional Information
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Orbit Covariance (6×6)
|
|
e |
q |
tp |
node |
peri |
i |
e |
1.853713269190073E-15 |
-5.814250214526903E-15 |
1.560440525693576E-13 |
-2.149231422913538E-15 |
4.135281391613516E-14 |
-1.123985411776913E-14 |
q |
-5.814250214526903E-15 |
1.862849528400548E-14 |
-2.005458454184408E-12 |
5.130703018435304E-15 |
-3.813565934251909E-13 |
3.882902772988047E-14 |
tp |
1.560440525693576E-13 |
-2.005458454184408E-12 |
2.738815262748413E-8 |
4.866096096038203E-11 |
4.902966466285223E-9 |
-1.510451050139524E-11 |
node |
-2.149231422913538E-15 |
5.130703018435304E-15 |
4.866096096038203E-11 |
1.494040315414996E-10 |
-1.285573351698362E-10 |
6.909513271440477E-12 |
peri |
4.135281391613516E-14 |
-3.813565934251909E-13 |
4.902966466285223E-9 |
-1.285573351698362E-10 |
1.015015550483313E-9 |
-8.891538436737391E-12 |
i |
-1.123985411776913E-14 |
3.882902772988047E-14 |
-1.510451050139524E-11 |
6.909513271440477E-12 |
-8.891538436737391E-12 |
1.777011278660001E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
14.13 |
|
n/a |
E2020-QM9 |
|
diameter |
diameter |
9.473 |
km |
0.111 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
geometric albedo |
albedo |
0.059 |
|
0.007 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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|
65100 Birtwhistle | Discovered 2002 Feb. 8 by C. W. Juels and P. R. Holvorcem at Fountain Hills. |
British amateur astronomer Peter Birtwhistle (b. 1958) was measuring positions of comets and NEAs photographically during 1982-1986 and in 2002 began CCD astrometry in Great Shefford, Berkshire. On 2003 Sept. 29 he provided confirmation of 2003 SQ222, whose passage at 84~000 km from the earth is the closest known. |
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
Reference: 20040107/MPCPages.arc | Last Updated: 2004-01-07 |
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