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183121 (2002 RV172)
Classification: Main-belt Asteroid          SPK-ID: 2183121
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 .1232770698571287 5.3204e-08  
a 2.301262634355861 2.0026e-08 au
q 2.017569719820773 1.2492e-07 au
i 3.935426807714264 7.4101e-06 deg
node 216.5857655311776 9.5364e-05 deg
peri 43.28464537397733 0.00010046 deg
M 99.73578965685282 3.3079e-05 deg
tp 2458647.238559561363
(2019-Jun-12.73855956)
0.00011574 TDB
period 1275.110158504381
3.49
1.6644e-05
4.557e-08
d
yr
n .2823285483210768 3.6852e-09 deg/d
Q 2.584955548890948 2.2494e-08 au
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      6607 days (18.09 yr)  
   first obs. used      1999-11-12  
   last obs. used      2017-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58338  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:33:27  

Additional Information
 Earth MOID = 1.00456 au 
 Jupiter MOID = 2.46108 au 
 T_jup = 3.578 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456370.5 (2013-Mar-19.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1239597175885484 5.3425e-08  
q 2.015832988955648 1.2557e-07 au
tp 2456095.463807903927
(2012-Jun-16.96380790)
0.00010971 TDB
node 216.7160508459201 9.5308e-05 deg
peri 43.00981659473356 0.00010031 deg
i 3.93661452558025 7.4113e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      6607 days (18.09 yr)  
   first obs. used      1999-11-12  
   last obs. used      2017-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58338  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:33:27  

Additional Information
 Jupiter MOID = 2.46108 au 
 T_jup = 3.578 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.85427828722951E-15 -6.643092656735663E-15 -8.42301474710309E-13 2.975016218415461E-14 -2.856182756796727E-13 -8.047067244047652E-16
q -6.643092656735663E-15 1.576786946285033E-14 1.942249984167963E-12 -6.904982746814148E-14 6.764879838739706E-13 1.893737889462903E-15
tp -8.42301474710309E-13 1.942249984167963E-12 1.203643007108112E-8 1.298880610507796E-11 3.466908236355157E-9 -4.359826343748336E-13
node 2.975016218415461E-14 -6.904982746814148E-14 1.298880610507796E-11 9.083529779005922E-9 -9.057682779879295E-9 -1.833415392335848E-10
peri -2.856182756796727E-13 6.764879838739706E-13 3.466908236355157E-9 -9.057682779879295E-9 1.006239834477322E-8 1.828595875689567E-10
i -8.047067244047652E-16 1.893737889462903E-15 -4.359826343748336E-13 -1.833415392335848E-10 1.828595875689567E-10 5.492729599795515E-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 16.9   n/a MPO433197  

183121 (2002 RV172)          Discovered 2002-Sep-13 by NEAT at Palomar
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 2002 RV172 = 1999 WE16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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