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243765 (2000 RJ21)
Classification: Main-belt Asteroid          SPK-ID: 2243765
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1717302608221672 3.4391e-08  
a 2.247030625657055 6.7658e-09 au
q 1.861147470237571 7.9494e-08 au
i 4.712346256527139 3.4472e-06 deg
node 232.4907915921841 4.482e-05 deg
peri 98.8312758154873 4.68e-05 deg
M 324.2969013939085 1.1077e-05 deg
tp 2459122.515589618487
(2020-Sep-30.01558962)
3.7825e-05 TDB
period 1230.30252212229
3.37
5.5567e-06
1.521e-08
d
yr
n .2926109583023489 1.3216e-09 deg/d
Q 2.632913781076538 7.9277e-09 au
  Orbit Determination Parameters
   # obs. used (total)      727  
   data-arc span      10975 days (30.05 yr)  
   first obs. used      1990-10-12  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52418  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:54:27  

Additional Information
 Earth MOID = .857794 au 
 Jupiter MOID = 2.72685 au 
 T_jup = 3.606 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO386055  
diameter diameter 1.351 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.321   0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243765 (2000 RJ21)          Discovered 2000-Sep-01 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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