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70397 (1999 RH239)
Classification: Main-belt Asteroid          SPK-ID: 2070397
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1456629627254949 3.2121e-08  
a 2.566871664484036 1.0447e-08 au
q 2.192973532899169 8.627e-08 au
i 9.010969502158336 3.5059e-06 deg
node 128.1802900046281 2.7057e-05 deg
peri 11.71238259658094 3.1847e-05 deg
M 298.1717869170114 1.883e-05 deg
tp 2459458.481673042721
(2021-Aug-31.98167304)		 7.9404e-05 TDB
period 1502.120110939012
4.11		 9.1701e-06
2.511e-08		 d
yr
n .2396612610258943 1.4631e-09 deg/d
Q 2.940769796068903 1.1968e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1291  
   data-arc span      8718 days (23.87 yr)  
   first obs. used      1997-03-05  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48428  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 06:40:46  

Additional Information
 Earth MOID = 1.20715 au 
 Jupiter MOID = 2.08727 au 
 T_jup = 3.400 
[ 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 14.67   n/a E2021B10  
diameter diameter 3.168 km 0.212 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.279   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70397 (1999 RH239)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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