[ hide orbit diagram ]
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 | .1590887308349676 | 6.714e-08 | |
a | 2.405719555244481 | 1.9954e-08 | au |
q | 2.022996684455773 | 1.6915e-07 | au |
i | 24.00382951061468 | 6.8635e-06 | deg |
node | 230.7507655092764 | 1.2976e-05 | deg |
peri | 161.8831690398809 | 2.1668e-05 | deg |
M | 336.2711521579637 | 1.931e-05 | deg |
tp | 2459290.333862960408 (2021-Mar-16.83386296) | 7.3757e-05 | TDB |
period | 1362.906066111442 3.73 | 1.6957e-05 4.643e-08 | d yr |
n | .2641414613606712 | 3.2864e-09 | deg/d |
Q | 2.788442426033188 | 2.3129e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2457548.5 (2016-Jun-09.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1604666763475391 | 6.7273e-08 | |
q | 2.019131498897313 | 1.6967e-07 | au |
tp | 2457927.606298423684 (2017-Jun-23.10629842) | 6.4461e-05 | TDB |
node | 230.7993221957937 | 1.2964e-05 | deg |
peri | 161.9273001533568 | 2.1507e-05 | deg |
i | 24.02387027956779 | 6.8676e-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 |
4.525641219679672E-15 |
-1.136856592250632E-14 |
-5.208841756925278E-13 |
-1.204572038949875E-14 |
-3.399554668244257E-14 |
2.953655413933865E-15 |
q |
-1.136856592250632E-14 |
2.87877814895329E-14 |
1.68860758362849E-12 |
3.127186828121187E-14 |
1.584370251856285E-13 |
-6.130886977513426E-15 |
tp |
-5.208841756925278E-13 |
1.68860758362849E-12 |
4.155211265528989E-9 |
-1.230350935160603E-11 |
1.113139771348468E-9 |
9.677802252455885E-12 |
node |
-1.204572038949875E-14 |
3.127186828121187E-14 |
-1.230350935160603E-11 |
1.680603753178221E-10 |
-1.568774934673044E-10 |
-1.012999959247603E-11 |
peri |
-3.399554668244257E-14 |
1.584370251856285E-13 |
1.113139771348468E-9 |
-1.568774934673044E-10 |
4.625365829488833E-10 |
1.222543647452647E-11 |
i |
2.953655413933865E-15 |
-6.130886977513426E-15 |
9.677802252455885E-12 |
-1.012999959247603E-11 |
1.222543647452647E-11 |
4.716343412342962E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
16.08 |
|
n/a |
E2021B55 |
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|
233912 (2009 NC) Discovered 2009-Jul-03 by La Sagra at La Sagra |
Reference: 20100228/Numbers.arc | Last Updated: 2010-03-03 |
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[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
|
Date/Time (TDB) |
Time Uncertainty (days_HH:MM) |
Body |
Nominal Distance (au) |
Minimum Distance (au) |
Maximum Distance (au) |
V-relative (km/s) |
V-infinity (km/s) |
JD (TDB) |
Time Uncertainty (minutes) |
Semi-major axis (km) |
Semi-minor axis (km) |
range-LOV angle (deg) |
N-sigma |
BP |
Orbit Ref. |
Reference |
Modified |
1926-Oct-01 10:38 |
00:01 |
Hebe |
0.042717420494807 |
0.0427141748674223 |
0.0427206726609962 |
8.71346287499707 |
8.71346285829533 |
2424789.943091655 |
1.10508725367108 |
979.043812346864 |
81.829182947628 |
81.7614598590443 |
77283.1900995802 |
T |
20 |
CATAB v2.0f-lin.ifort 2021-Feb-24 13:24:12 |
2021-Feb-24 13:24 |
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