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70396 (1999 RQ238)
Classification: Main-belt Asteroid          SPK-ID: 2070396
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08084563650410879 6.1559e-08  
a 2.606239000720558 1.712e-08 au
q 2.395535949825472 1.6969e-07 au
i 13.88437521583145 4.6809e-06 deg
node 259.9849843800014 2.8092e-05 deg
peri 170.1292578066372 5.202e-05 deg
M 275.3202793355522 4.2687e-05 deg
tp 2459361.990344770174
(2021-May-27.49034477)		 0.0001825 TDB
period 1536.808613634215
4.21		 1.5142e-05
4.146e-08		 d
yr
n .2342516802718063 2.3081e-09 deg/d
Q 2.816942051615644 1.8504e-08 au
   Orbit Determination Parameters
   # obs. used (total)      821  
   data-arc span      7738 days (21.19 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46272  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:34  

Additional Information
 Earth MOID = 1.41138 au 
 Jupiter MOID = 2.44183 au 
 T_jup = 3.366 
[ 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 15.0   n/a MPO395642  
diameter diameter 3.511 km 0.371 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.131   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70396 (1999 RQ238)          Discovered 1999-Sep-08 by LINEAR at Socorro
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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