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172232 (2002 RL131)
Classification: Main-belt Asteroid          SPK-ID: 2172232
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1506299962498832 5.7783e-08  
a 2.672172461652704 2.3321e-08 au
q 2.269663133774916 1.5492e-07 au
i 10.99632684101553 6.3919e-06 deg
node 275.6887347432964 3.1253e-05 deg
peri 172.0391534270183 4.0038e-05 deg
M 294.2837418809482 2.8961e-05 deg
tp 2459291.749694763730
(2021-Mar-18.24969476)
0.00013093 TDB
period 1595.493917578149
4.37
2.0886e-05
5.718e-08
d
yr
n .2256354574804369 2.9538e-09 deg/d
Q 3.074681789530492 2.6834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      368  
   data-arc span      7089 days (19.41 yr)  
   first obs. used      2000-04-04  
   last obs. used      2019-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55573  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:45:24  

Additional Information
 Earth MOID = 1.28667 au 
 Jupiter MOID = 2.13625 au 
 T_jup = 3.338 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457098.5 (2015-Mar-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1490579486632309 5.686e-08  
q 2.275756521034126 1.5219e-07 au
tp 2457690.283806967520
(2016-Oct-28.78380697)
0.00011985 TDB
node 275.8139742020142 3.1335e-05 deg
peri 171.0228828977644 4.0395e-05 deg
i 10.9741309954091 6.3808e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      368  
   data-arc span      7089 days (19.41 yr)  
   first obs. used      2000-04-04  
   last obs. used      2019-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55573  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:45:24  

Additional Information
 Jupiter MOID = 2.13625 au 
 T_jup = 3.338 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.233086146669423E-15 -8.577240977274679E-15 1.755187818561341E-12 -5.966042394362995E-15 5.360491621445571E-13 2.445111391856605E-15
q -8.577240977274679E-15 2.316129226566229E-14 -3.253335478273109E-12 1.750140113402665E-14 -1.160860555917638E-12 -3.599934362020468E-15
tp 1.755187818561341E-12 -3.253335478273109E-12 1.436494155247878E-8 3.888494883653237E-12 3.074443482413038E-9 2.659966724902921E-11
node -5.966042394362995E-15 1.750140113402665E-14 3.888494883653237E-12 9.818988344499474E-10 -9.63200843294481E-10 8.50085299622978E-11
peri 5.360491621445571E-13 -1.160860555917638E-12 3.074443482413038E-9 -9.63200843294481E-10 1.63177418202417E-9 -7.776819801212666E-11
i 2.445111391856605E-15 -3.599934362020468E-15 2.659966724902921E-11 8.50085299622978E-11 -7.776819801212666E-11 4.071509297579835E-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 15.6   n/a MPO454180  

172232 (2002 RL131)          Discovered 2002-Sep-11 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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