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72931 (2002 AJ14)
Classification: Main-belt Asteroid          SPK-ID: 2072931
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2513743527009087 3.1802e-08  
a 2.34626130489225 1.0119e-08 au
q 1.756471388107771 7.6745e-08 au
i 6.754837379480271 5.1514e-06 deg
node 8.214683823948087 2.9573e-05 deg
peri 272.1471586156196 3.1581e-05 deg
M 57.27539441735029 1.0658e-05 deg
tp 2459187.652836137790
(2020-Dec-04.15283614)
3.8719e-05 TDB
period 1312.692470392137
3.59
8.4918e-06
2.325e-08
d
yr
n .2742454977992356 1.7741e-09 deg/d
Q 2.936051221676729 1.2662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1029  
   data-arc span      8974 days (24.57 yr)  
   first obs. used      1996-12-13  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54934  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:01:29  

Additional Information
 Earth MOID = .75633 au 
 Jupiter MOID = 2.26145 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457288.5 (2015-Sep-23.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2516565864485021 3.1883e-08  
q 1.755755647384461 7.6862e-08 au
tp 2457873.997395809554
(2017-Apr-30.49739581)
3.8778e-05 TDB
node 8.263795015645899 2.9595e-05 deg
peri 272.0901532206451 3.1593e-05 deg
i 6.75340182003057 5.1496e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1029  
   data-arc span      8974 days (24.57 yr)  
   first obs. used      1996-12-13  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54934  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:01:29  

Additional Information
 Jupiter MOID = 2.26145 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.016547627063487E-15 -2.439575001303087E-15 4.98062878826254E-13 -5.350468881811934E-15 1.678680503692388E-13 1.277845391148128E-15
q -2.439575001303087E-15 5.907826898971324E-15 -1.204178611047856E-12 1.197752124207685E-14 -4.110676067660508E-13 -2.931270637110081E-15
tp 4.98062878826254E-13 -1.204178611047856E-12 1.50369929680891E-9 -9.003969735281402E-12 4.359292350584314E-10 1.232156238542907E-12
node -5.350468881811934E-15 1.197752124207685E-14 -9.003969735281402E-12 8.758703322150567E-10 -8.717406283160736E-10 -5.07316420104629E-11
peri 1.678680503692388E-13 -4.110676067660508E-13 4.359292350584314E-10 -8.717406283160736E-10 9.981475164289912E-10 5.073406361659033E-11
i 1.277845391148128E-15 -2.931270637110081E-15 1.232156238542907E-12 -5.07316420104629E-11 5.073406361659033E-11 2.651792601495668E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.46   n/a E2021B10  

72931 (2002 AJ14)          Discovered 2002-Jan-12 by Yeung, W. K. Y. at Desert Eagle
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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