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392735 (2012 RL22)
Classification: Main-belt Asteroid          SPK-ID: 2392735
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 .1911361352030242 8.2013e-08  
a 2.615407901284683 3.7983e-08 au
q 2.115508943053676 2.1818e-07 au
i 18.51792767537445 1.0953e-05 deg
node 20.73494677896137 2.0073e-05 deg
peri 30.97988939239123 3.9876e-05 deg
M 273.564879691792 3.3974e-05 deg
tp 2459371.432865118002
(2021-Jun-05.93286512)
0.00015087 TDB
period 1544.925615494282
4.23
3.3655e-05
9.214e-08
d
yr
n .2330209276029266 5.0761e-09 deg/d
Q 3.115306859515689 4.5243e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      9568 days (26.20 yr)  
   first obs. used      1993-03-19  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55129  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:09:10  

Additional Information
 Earth MOID = 1.14091 au 
 Jupiter MOID = 2.38854 au 
 T_jup = 3.309 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457287.5 (2015-Sep-22.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1932481864346893 8.2689e-08  
q 2.107990865671255 2.2087e-07 au
tp 2457826.100921448116
(2017-Mar-13.60092145)
0.00012821 TDB
node 20.88678944137103 2.005e-05 deg
peri 30.6586995773033 3.9325e-05 deg
i 18.55103969302717 1.096e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      9568 days (26.20 yr)  
   first obs. used      1993-03-19  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55129  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:09:10  

Additional Information
 Jupiter MOID = 2.38854 au 
 T_jup = 3.309 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.837491844873347E-15 -1.80923951068816E-14 -6.444297573572088E-12 7.785534989675027E-14 -1.822729011373016E-12 1.126022064876341E-14
q -1.80923951068816E-14 4.878350207495053E-14 1.885878737662272E-11 -2.124523158901861E-13 5.191317609250292E-12 -3.317695855683327E-14
tp -6.444297573572088E-12 1.885878737662272E-11 1.643863520291168E-8 -1.244678094565796E-10 4.335493937108805E-9 -3.135393193030974E-11
node 7.785534989675027E-14 -2.124523158901861E-13 -1.244678094565796E-10 4.020160352026613E-10 -4.126879733041454E-10 -6.128481561641459E-11
peri -1.822729011373016E-12 5.191317609250292E-12 4.335493937108805E-9 -4.126879733041454E-10 1.546422077660046E-9 4.995971795264485E-11
i 1.126022064876341E-14 -3.317695855683327E-14 -3.135393193030974E-11 -6.128481561641459E-11 4.995971795264485E-11 1.201304543043034E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO252115  

392735 (2012 RL22)          Discovered 2010-Mar-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

Alternate Designations
 2012 RL22 = 2010 EU98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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