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245200 (2004 UJ2)
Classification: Main-belt Asteroid          SPK-ID: 2245200
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .166848313343694 4.7978e-08  
a 2.308933200436558 1.2697e-08 au
q 1.923691590320461 1.1203e-07 au
i 6.462235575265618 4.6956e-06 deg
node 66.8617508098324 5.0613e-05 deg
peri 331.1633385190234 5.3019e-05 deg
M 146.6328809998836 1.6934e-05 deg
tp 2458478.531437859437
(2018-Dec-26.03143786)
5.8798e-05 TDB
period 1281.490761753171
3.51
1.0571e-05
2.894e-08
d
yr
n .280922821095873 2.3173e-09 deg/d
Q 2.694174810552655 1.4816e-08 au
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      6679 days (18.29 yr)  
   first obs. used      2002-01-08  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58278  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:03:25  

Additional Information
 Earth MOID = .934559 au 
 Jupiter MOID = 2.715 au 
 T_jup = 3.559 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457530.5 (2016-May-22.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1656841687677169 4.7936e-08  
q 1.927297447976606 1.1179e-07 au
tp 2457195.359876319822
(2015-Jun-21.85987632)
5.7203e-05 TDB
node 66.91834115482145 5.0672e-05 deg
peri 330.9411342409841 5.3125e-05 deg
i 6.457711120368616 4.6911e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      6679 days (18.29 yr)  
   first obs. used      2002-01-08  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58278  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:03:25  

Additional Information
 Jupiter MOID = 2.715 au 
 T_jup = 3.559 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.297828488618162E-15 -5.334798979349142E-15 -1.042610767760376E-12 -2.428691665178836E-14 -3.326050118786569E-13 -3.821191688547689E-15
q -5.334798979349142E-15 1.24975212794581E-14 2.490940648769463E-12 5.754565563764698E-14 7.981137573014774E-13 8.938278959236745E-15
tp -1.042610767760376E-12 2.490940648769463E-12 3.272232930091456E-9 6.631078101342264E-11 9.462611340952584E-10 1.173978585774605E-12
node -2.428691665178836E-14 5.754565563764698E-14 6.631078101342264E-11 2.567679367156662E-9 -2.531248808021447E-9 -4.678788664486369E-11
peri -3.326050118786569E-13 7.981137573014774E-13 9.462611340952584E-10 -2.531248808021447E-9 2.822310833243588E-9 4.691876038305984E-11
i -3.821191688547689E-15 8.938278959236745E-15 1.173978585774605E-12 -4.678788664486369E-11 4.691876038305984E-11 2.200620599726336E-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 17.1   n/a MPO460074  

245200 (2004 UJ2)          Discovered 2004-Oct-18 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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