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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 39 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1146447518053788 | 3.9881e-08 | |
a | 5.291168380842654 | 7.1788e-08 | au |
q | 4.68456369506048 | 2.5524e-07 | au |
i | 18.02954660034046 | 1.9624e-06 | deg |
node | 332.8800812889296 | 7.5749e-06 | deg |
peri | 60.93802546402937 | 1.2104e-05 | deg |
M | 327.0615926763036 | 1.376e-05 | deg |
tp | 2459607.248439459049 (2022-Jan-27.74843946) | 0.00017257 | TDB |
period | 4445.553082340878 12.17 | 9.0472e-05 2.477e-07 | d yr |
n | .08097980011306853 | 1.648e-09 | deg/d |
Q | 5.897773066624828 | 8.0018e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2457208.5 (2015-Jul-05.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1126820618090643 | 3.9953e-08 | |
q | 4.706313190459453 | 2.5462e-07 | au |
tp | 2455146.371533821888 (2009-Nov-10.87153382) | 0.00016633 | TDB |
node | 332.9792348248238 | 7.5655e-06 | deg |
peri | 60.24339302087191 | 1.2087e-05 | deg |
i | 18.00451389816189 | 1.9658e-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 |
1.596251414692984E-15 |
-9.964819562926285E-15 |
-1.756107502580705E-12 |
-1.201203303873977E-13 |
-7.913356416774371E-14 |
-3.057248219030884E-14 |
q |
-9.964819562926285E-15 |
6.483066718392336E-14 |
7.35073656233891E-12 |
7.170687396132808E-13 |
4.068465402485333E-13 |
1.813980672530967E-13 |
tp |
-1.756107502580705E-12 |
7.35073656233891E-12 |
2.766691101867118E-8 |
1.607449572189727E-10 |
1.603022895241872E-9 |
4.731244722427109E-11 |
node |
-1.201203303873977E-13 |
7.170687396132808E-13 |
1.607449572189727E-10 |
5.723754539353192E-11 |
-4.025899218701531E-11 |
1.376247354739823E-11 |
peri |
-7.913356416774371E-14 |
4.068465402485333E-13 |
1.603022895241872E-9 |
-4.025899218701531E-11 |
1.460970238539965E-10 |
-8.958648278690179E-12 |
i |
-3.057248219030884E-14 |
1.813980672530967E-13 |
4.731244722427109E-11 |
1.376247354739823E-11 |
-8.958648278690179E-12 |
3.864464442411939E-12 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
9.41 |
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n/a |
E2021B10 |
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diameter |
diameter |
83.990 |
km |
1.279 |
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G) |
|
rotation period |
rot_per |
29.38 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Binzel, R.P.; Sauter, L.M. (1992) Icarus 95, 222-238.] [French, L.M.; Stephens, R.D.; Lederer, S.M.; Coley, D.R.; Rohl, D.A. (2011) Minor Planet Bull. 38, 116-120.] |
geometric albedo |
albedo |
0.048 |
|
0.009 |
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G) |
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1404 Ajax (1936 QW) Discovered 1936-Aug-17 by Reinmuth, K. at Heidelberg |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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