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442772 (2012 XH104)
Classification: Main-belt Asteroid          SPK-ID: 2442772
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1257248331616221 8.3632e-08  
a 2.609787597549322 5.0868e-08 au
q 2.281672487260163 2.3652e-07 au
i 13.82498169473208 9.0479e-06 deg
node 84.43849033878746 2.4231e-05 deg
peri 14.36872195467063 3.6936e-05 deg
M 280.3652172473672 3.3511e-05 deg
tp 2459341.148491500449
(2021-May-06.64849150)		 0.00015008 TDB
period 1539.948408236315
4.22		 4.5023e-05
1.233e-07		 d
yr
n .2337740654651566 6.8348e-09 deg/d
Q 2.937902707838481 5.7263e-08 au
   Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      3819 days (10.46 yr)  
   first obs. used      2009-01-20  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58534  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:58  

Additional Information
 Earth MOID = 1.30066 au 
 Jupiter MOID = 2.26523 au 
 T_jup = 3.358 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457360.5 (2015-Dec-04.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1241571090946139 8.3375e-08  
q 2.287370394582539 2.358e-07 au
tp 2457796.267686109836
(2017-Feb-11.76768611)		 0.00012474 TDB
node 84.48732105466023 2.4266e-05 deg
peri 13.51228886188146 3.7184e-05 deg
i 13.81190571011678 9.04e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      3819 days (10.46 yr)  
   first obs. used      2009-01-20  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58534  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:58  

Additional Information
 Jupiter MOID = 2.26523 au 
 T_jup = 3.358 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.951372988231378E-15 -1.934061710648065E-14 -3.373694895225193E-12 3.843260519086415E-14 -9.264025274502821E-13 1.327313368231837E-14
q -1.934061710648065E-14 5.560361339867036E-14 1.144064676609353E-11 -1.109871068747607E-13 2.917524699057486E-12 -3.24396408537221E-14
tp -3.373694895225193E-12 1.144064676609353E-11 1.555947629851969E-8 -6.074413880414861E-11 3.509002100602664E-9 -8.521266039839536E-12
node 3.843260519086415E-14 -1.109871068747607E-13 -6.074413880414861E-11 5.888255143466092E-10 -5.859274445153377E-10 -3.484848010158044E-11
peri -9.264025274502821E-13 2.917524699057486E-12 3.509002100602664E-9 -5.859274445153377E-10 1.382620341785691E-9 3.145691370038007E-11
i 1.327313368231837E-14 -3.24396408537221E-14 -8.521266039839536E-12 -3.484848010158044E-11 3.145691370038007E-11 8.172221601528228E-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 16.6   n/a MPO450447  

442772 (2012 XH104)          Discovered 2012-Dec-06 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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