[ 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 18 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .09585393860231496 | 5.1059e-08 | |
a | 2.520860338378077 | 1.9466e-08 | au |
q | 2.279225946278173 | 1.2807e-07 | au |
i | 4.238992696164205 | 5.3251e-06 | deg |
node | 161.5715741894593 | 6.4782e-05 | deg |
peri | 290.2631352690654 | 6.9063e-05 | deg |
M | 90.04589381779999 | 2.5109e-05 | deg |
tp | 2458834.835316441973 (2019-Dec-17.33531644) | 0.00010133 | TDB |
period | 1461.913258890522 4.00 | 1.6934e-05 4.636e-08 | d yr |
n | .2462526403743078 | 2.8524e-09 | deg/d |
Q | 2.76249473047798 | 2.1332e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2457067.5 (2015-Feb-14.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .09443890946868401 | 5.1141e-08 | |
q | 2.283315824487711 | 1.2809e-07 | au |
tp | 2457373.523867955684 (2015-Dec-17.02386796) | 0.00010224 | TDB |
node | 161.6029650954131 | 6.4726e-05 | deg |
peri | 290.5395567665959 | 6.9142e-05 | deg |
i | 4.239201377385541 | 5.3286e-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 |
2.615376708407922E-15 |
-6.489270278543199E-15 |
1.138203620021582E-12 |
-9.854510611567802E-15 |
3.413187692677224E-13 |
-1.525018039404679E-15 |
q |
-6.489270278543199E-15 |
1.640703193390214E-14 |
-2.941463316014085E-12 |
2.288740190607348E-14 |
-8.889900636288675E-13 |
4.238117187881791E-15 |
tp |
1.138203620021582E-12 |
-2.941463316014085E-12 |
1.045267025479847E-8 |
4.425235073941027E-11 |
2.504859073264833E-9 |
-3.262417234456284E-12 |
node |
-9.854510611567802E-15 |
2.288740190607348E-14 |
4.425235073941027E-11 |
4.189393837054998E-9 |
-4.167123127992253E-9 |
-9.902654491537488E-11 |
peri |
3.413187692677224E-13 |
-8.889900636288675E-13 |
2.504859073264833E-9 |
-4.167123127992253E-9 |
4.780559779178797E-9 |
9.792676833835637E-11 |
i |
-1.525018039404679E-15 |
4.238117187881791E-15 |
-3.262417234456284E-12 |
-9.902654491537488E-11 |
9.792676833835637E-11 |
2.839404933990837E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
16.07 |
|
n/a |
E2021B55 |
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|
215458 (2002 PJ178) Discovered 2002-Aug-15 by NEAT at Palomar |
Reference: 20090607/Numbers.arc | Last Updated: 2009-06-08 |
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[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
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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 |
2054-Dec-08 22:25 |
00:26 |
Psych |
0.0320981804656588 |
0.0320967006908928 |
0.0320996609561986 |
1.27775649433048 |
1.27775619932866 |
2471610.434078842 |
25.9803491855888 |
422.932771570138 |
60.160678113401 |
84.3957406618436 |
78754.0540006646 |
T |
18 |
CATAB v2.0f-lin.ifort 2020-Nov-12 03:41:47 |
2020-Nov-12 03:41 |
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