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390024 (2012 UQ31)
Classification: Main-belt Asteroid          SPK-ID: 2390024
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134713292499248 8.0515e-08  
a 3.036693647656211 5.7494e-08 au
q 2.692115982931858 2.3673e-07 au
i 10.68770395157182 7.7261e-06 deg
node 262.9331156800918 3.9925e-05 deg
peri 145.1186637063522 5.047e-05 deg
M 158.7891611300995 3.001e-05 deg
tp 2458147.953154250192
(2018-Jan-29.45315425)
0.00015942 TDB
period 1932.857773701991
5.29
5.4893e-05
1.503e-07
d
yr
n .1862527108295683 5.2895e-09 deg/d
Q 3.381271312380564 6.4018e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      6299 days (17.25 yr)  
   first obs. used      2003-01-25  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 01:14:52  

Additional Information
 Earth MOID = 1.71104 au 
 Jupiter MOID = 1.97526 au 
 T_jup = 3.205 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457536.5 (2016-May-28.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1135431792396341 8.0314e-08  
q 2.692740003611 2.3635e-07 au
tp 2458150.465887094467
(2018-Jan-31.96588709)
0.00015976 TDB
node 262.9500924985794 3.9923e-05 deg
peri 145.7068484529242 5.0516e-05 deg
i 10.68725059139986 7.7258e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      6299 days (17.25 yr)  
   first obs. used      2003-01-25  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 01:14:52  

Additional Information
 Jupiter MOID = 1.97526 au 
 T_jup = 3.205 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.450263032935098E-15 -1.856342263214565E-14 -2.26031899692027E-12 -2.219072590814099E-14 -6.74395913562209E-13 -4.098401625868103E-15
q -1.856342263214565E-14 5.586320829827505E-14 6.776597619506442E-12 7.223165490496928E-14 1.826718567497476E-12 1.688741760221707E-14
tp -2.26031899692027E-12 6.776597619506442E-12 2.552217978810527E-8 6.301563841010509E-11 4.965907825560658E-9 -6.097015182545687E-12
node -2.219072590814099E-14 7.223165490496928E-14 6.301563841010509E-11 1.593807180049512E-9 -1.553171763285344E-9 -7.670373232228499E-11
peri -6.74395913562209E-13 1.826718567497476E-12 4.965907825560658E-9 -1.553171763285344E-9 2.551888861642165E-9 7.396679367725022E-11
i -4.098401625868103E-15 1.688741760221707E-14 -6.097015182545687E-12 -7.670373232228499E-11 7.396679367725022E-11 5.968835623968628E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.14   n/a E2021B25  

390024 (2012 UQ31)          Discovered 2011-Jun-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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