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312983 (1999 RA236)
Classification: Main-belt Asteroid          SPK-ID: 2312983
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2662817583617671 5.7579e-08  
a 3.067881620005455 3.1715e-08 au
q 2.250960707784656 1.8341e-07 au
i 17.070234862455 7.7889e-06 deg
node 140.1453775842485 2.06e-05 deg
peri 239.5436131585689 2.4761e-05 deg
M 303.5428966242504 1.5269e-05 deg
tp 2459308.302692564524
(2021-Apr-03.80269256)
8.6087e-05 TDB
period 1962.710849434494
5.37
3.0435e-05
8.333e-08
d
yr
n .1834197839705859 2.8443e-09 deg/d
Q 3.884802532226255 4.0161e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      7588 days (20.77 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 05:27:55  

Additional Information
 Earth MOID = 1.30218 au 
 Jupiter MOID = 1.8132 au 
 T_jup = 3.111 
[ show covariance matrix ]

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 16.0   n/a MPO418617  

312983 (1999 RA236)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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