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442762 (2012 XJ51)
Classification: Main-belt Asteroid          SPK-ID: 2442762
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0262616543566728 7.4742e-08  
a 2.374676642803871 2.12e-08 au
q 2.312313705601691 1.8675e-07 au
i 13.85031874704566 5.1963e-06 deg
node 67.19719589361381 2.9754e-05 deg
peri 148.5763671117578 0.00012909 deg
M 339.0082840713737 0.00012807 deg
tp 2459474.438238787503
(2021-Sep-16.93823879)
0.0004758 TDB
period 1336.611359400062
3.66
1.7899e-05
4.9e-08
d
yr
n .2693378276850692 3.6068e-09 deg/d
Q 2.43703958000605 2.1757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      6638 days (18.17 yr)  
   first obs. used      2003-04-01  
   last obs. used      2021-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51181  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 07:58:33  

Additional Information
 Earth MOID = 1.30644 au 
 Jupiter MOID = 2.55987 au 
 T_jup = 3.503 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458067.5 (2017-Nov-10.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02698768220029117 7.4186e-08  
q 2.311075437128251 1.8554e-07 au
tp 2458142.293332500401
(2018-Jan-23.79333250)
0.00046633 TDB
node 67.2109187191935 2.9758e-05 deg
peri 149.8310016568186 0.00012781 deg
i 13.84921685298903 5.1969e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      6638 days (18.17 yr)  
   first obs. used      2003-04-01  
   last obs. used      2021-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51181  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 07:58:33  

Additional Information
 Jupiter MOID = 2.55987 au 
 T_jup = 3.503 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.503570243162568E-15 -1.369337118740791E-14 -1.912667896608512E-11 2.088224746889717E-14 -4.952861910611372E-12 -1.065577446174437E-14
q -1.369337118740791E-14 3.442558177789833E-14 4.792742895660405E-11 -5.387017449805803E-14 1.240936734908732E-11 2.839767427457178E-14
tp -1.912667896608512E-11 4.792742895660405E-11 2.17465641103063E-7 -2.694814997969395E-10 5.801623741657181E-8 1.152354012989866E-10
node 2.088224746889717E-14 -5.387017449805803E-14 -2.694814997969395E-10 8.855251243346463E-10 -9.317253152454278E-10 -3.997630497272157E-11
peri -4.952861910611372E-12 1.240936734908732E-11 5.801623741657181E-8 -9.317253152454278E-10 1.633578932404242E-8 6.939435468443609E-11
i -1.065577446174437E-14 2.839767427457178E-14 1.152354012989866E-10 -3.997630497272157E-11 6.939435468443609E-11 2.700739042046759E-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 17.05   n/a MPCxxxxx  

442762 (2012 XJ51)          Discovered 2012-Nov-06 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 XJ51 = 2014 GH38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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