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442763 (2012 XG53)
Classification: Jupiter Trojan          SPK-ID: 2442763
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08955886945565346 1.4484e-07  
a 5.159056507535188 5.7893e-07 au
q 4.697017239262504 4.811e-07 au
i 22.25675860664984 6.593e-06 deg
node 109.9614764566678 2.852e-05 deg
peri 84.05540289439186 7.783e-05 deg
M 189.9425938548872 9.0014e-05 deg
tp 2461418.340556142013
(2027-Jan-12.84055614)
0.0013785 TDB
period 4280.099389438102
11.72
0.00072044
1.972e-06
d
yr
n .08411019633991755 1.4158e-08 deg/d
Q 5.621095775807872 6.3078e-07 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      4034 days (11.04 yr)  
   first obs. used      2009-10-18  
   last obs. used      2020-11-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .65969  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:45:20  

Additional Information
 Earth MOID = 3.7899 au 
 Jupiter MOID = .00677146 au 
 T_jup = 2.844 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457476.5 (2016-Mar-29.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09116060576545579 1.4536e-07  
q 4.686273242503969 4.845e-07 au
tp 2457145.656611789072
(2015-May-03.15661179)
0.00073868 TDB
node 109.9670119881048 2.8527e-05 deg
peri 84.32598991218636 7.6177e-05 deg
i 22.25821914657321 6.5936e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      4034 days (11.04 yr)  
   first obs. used      2009-10-18  
   last obs. used      2020-11-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .65969  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:45:20  

Additional Information
 Jupiter MOID = .00677146 au 
 T_jup = 2.844 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.11289783989729E-14 -5.044498565777363E-14 5.956669091091011E-11 -7.678061585733259E-14 5.806626315367942E-12 -1.380002261619592E-14
q -5.044498565777363E-14 2.347366076555629E-13 -2.376948586442141E-11 1.153356823934912E-13 -1.92063799122779E-12 1.265033586514105E-13
tp 5.956669091091011E-11 -2.376948586442141E-11 5.456533445844423E-7 -4.304447441231818E-10 5.259719153048831E-8 3.375361046515148E-11
node -7.678061585733259E-14 1.153356823934912E-13 -4.304447441231818E-10 8.137759126258054E-10 -7.942617784057025E-10 3.403372664203373E-12
peri 5.806626315367942E-12 -1.92063799122779E-12 5.259719153048831E-8 -7.942617784057025E-10 5.802941652528162E-9 6.477311068810464E-13
i -1.380002261619592E-14 1.265033586514105E-13 3.375361046515148E-11 3.403372664203373E-12 6.477311068810464E-13 4.347533303958861E-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 13.9   n/a MPO456097  

442763 (2012 XG53)          Discovered 2009-Oct-18 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 XG53 = 2009 UE24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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