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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 ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1911361857369598 6.9333e-08  
a 2.61540792965945 3.465e-08 au
q 2.115508833838144 1.9261e-07 au
i 18.51791803630734 9.2192e-06 deg
node 20.73493541463336 2.006e-05 deg
peri 30.97989490546711 3.8316e-05 deg
M 273.5648752081916 3.3589e-05 deg
tp 2459371.432890395614
(2021-Jun-05.93289040)
0.00014955 TDB
period 1544.925640635813
4.23
3.0702e-05
8.406e-08
d
yr
n .2330209238108329 4.6308e-09 deg/d
Q 3.115307025480756 4.1273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      10035 days (27.47 yr)  
   first obs. used      1993-03-19  
   last obs. used      2020-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55117  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:22:54  

Additional Information
 Earth MOID = 1.14091 au 
 Jupiter MOID = 2.38854 au 
 T_jup = 3.309 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457518.5 (2016-May-10.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1931439779642323 6.9932e-08  
q 2.108598228154875 1.9482e-07 au
tp 2457826.040814124590
(2017-Mar-13.54081412)
0.00012526 TDB
node 20.88137048197715 2.0035e-05 deg
peri 30.62071884150938 3.784e-05 deg
i 18.55094721426859 9.2242e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      10035 days (27.47 yr)  
   first obs. used      1993-03-19  
   last obs. used      2020-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55117  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:22:54  

Additional Information
 Jupiter MOID = 2.38854 au 
 T_jup = 3.309 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.890552130037718E-15 -1.350226702244889E-14 -5.30650991429457E-12 6.032167530155714E-14 -1.358194695879785E-12 -1.693667608439008E-14
q -1.350226702244889E-14 3.795411346132317E-14 1.61475874400888E-11 -1.721773001469756E-13 4.090285850297344E-12 5.056711317644301E-14
tp -5.30650991429457E-12 1.61475874400888E-11 1.568915298421002E-8 -1.168366240331637E-10 4.047214133809622E-9 4.064676677552471E-11
node 6.032167530155714E-14 -1.721773001469756E-13 -1.168366240331637E-10 4.014122226157689E-10 -4.086306186477285E-10 -5.96071716695592E-11
peri -1.358194695879785E-12 4.090285850297344E-12 4.047214133809622E-9 -4.086306186477285E-10 1.431846013273255E-9 6.681446573354732E-11
i -1.693667608439008E-14 5.056711317644301E-14 4.064676677552471E-11 -5.96071716695592E-11 6.681446573354732E-11 8.508571673424376E-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 16.1   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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