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70398 (1999 RD240)
Classification: Main-belt Asteroid          SPK-ID: 2070398
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05783006847808141 4.0191e-08  
a 2.520902525108737 1.1674e-08 au
q 2.375118559455131 1.002e-07 au
i 12.76581348785309 3.9974e-06 deg
node 52.35248986631373 2.0923e-05 deg
peri 345.5707131235503 5.1472e-05 deg
M 80.46655382959591 4.5494e-05 deg
tp 2458873.727569727724
(2020-Jan-25.22756973)		 0.00018536 TDB
period 1461.949956837244
4.00		 1.0156e-05
2.781e-08		 d
yr
n .2462464589272382 1.7106e-09 deg/d
Q 2.666686490762344 1.235e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1158  
   data-arc span      7800 days (21.36 yr)  
   first obs. used      1999-09-11  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5135  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 06:40:47  

Additional Information
 Earth MOID = 1.38453 au 
 Jupiter MOID = 2.59496 au 
 T_jup = 3.419 
[ 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 14.91   n/a E2021B10  
diameter diameter 4.924 km 0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

70398 (1999 RD240)          Discovered 1999-Sep-11 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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