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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1717117237009048 4.2512e-08  
a 2.246105043782384 8.8843e-09 au
q 1.860422475101214 9.4662e-08 au
i 4.713590093745561 5.9392e-06 deg
node 232.4971030296679 5.1952e-05 deg
peri 98.98605199312239 5.5165e-05 deg
M 207.0428750480542 1.9298e-05 deg
tp 2459122.909098937958
(2020-Sep-30.40909894)
6.7438e-05 TDB
period 1229.542433389419
3.37
7.2951e-06
1.997e-08
d
yr
n .2927918469699379 1.7372e-09 deg/d
Q 2.631787612463552 1.041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      10402 days (28.48 yr)  
   first obs. used      1990-10-12  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:06:14  

Additional Information
 Earth MOID = .856207 au 
 Jupiter MOID = 2.72612 au 
 T_jup = 3.607 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457005.5 (2014-Dec-14.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1713804681448225 4.2349e-08  
q 1.861484804744091 9.4207e-08 au
tp 2456661.550348453922
(2014-Jan-04.05034845)
6.1294e-05 TDB
node 232.6344239628852 5.2009e-05 deg
peri 98.48316823842994 5.523e-05 deg
i 4.710734308598855 5.9343e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      10402 days (28.48 yr)  
   first obs. used      1990-10-12  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:06:14  

Additional Information
 Jupiter MOID = 2.72612 au 
 T_jup = 3.607 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.793436048171675E-15 -3.977469103727842E-15 1.165580859515695E-12 -2.893903489113403E-15 3.193807272076808E-13 -1.532475307152925E-15
q -3.977469103727842E-15 8.874917296372059E-15 -2.45965368037108E-12 5.988536821401052E-15 -6.676203570020115E-13 3.531731592528556E-15
tp 1.165580859515695E-12 -2.45965368037108E-12 3.756893845453886E-9 -1.436846865152171E-11 1.151541452190146E-9 -1.030960278468207E-12
node -2.893903489113403E-15 5.988536821401052E-15 -1.436846865152171E-11 2.70490305107848E-9 -2.699285092812682E-9 -9.28956730953424E-11
peri 3.193807272076808E-13 -6.676203570020115E-13 1.151541452190146E-9 -2.699285092812682E-9 3.050371408808909E-9 9.224666822069668E-11
i -1.532475307152925E-15 3.531731592528556E-15 -1.030960278468207E-12 -9.28956730953424E-11 9.224666822069668E-11 3.521607485754586E-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 16.5   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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