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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05768648520935492 4.6497e-08  
a 2.520586066795823 1.326e-08 au
q 2.375182315934699 1.1934e-07 au
i 12.76689760738819 4.8967e-06 deg
node 52.35757661558574 2.2212e-05 deg
peri 345.5242233218984 5.2649e-05 deg
M 31.26560496865312 4.5981e-05 deg
tp 2458873.555158001916
(2020-Jan-25.05515800)		 0.00018698 TDB
period 1461.674679416221
4.00		 1.1534e-05
3.158e-08		 d
yr
n .2462928345613681 1.9435e-09 deg/d
Q 2.665989817656946 1.4025e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1041  
   data-arc span      7450 days (20.40 yr)  
   first obs. used      1999-09-11  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52346  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:09:54  

Additional Information
 Earth MOID = 1.38557 au 
 Jupiter MOID = 2.59606 au 
 T_jup = 3.420 
[ 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 14.9   n/a MPO502589  
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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