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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08084565746200237 6.6982e-08  
a 2.60623901066785 2.0708e-08 au
q 2.395535904347289 1.7938e-07 au
i 13.88437101548855 7.1277e-06 deg
node 259.9849858429783 2.8321e-05 deg
peri 170.1292561351021 5.2263e-05 deg
M 275.3202748351916 4.2856e-05 deg
tp 2459361.990366051384
(2021-May-27.49036605)
0.0001834 TDB
period 1536.808622432574
4.21
1.8316e-05
5.015e-08
d
yr
n .2342516789306957 2.7919e-09 deg/d
Q 2.816942116988411 2.2382e-08 au
  Orbit Determination Parameters
   # obs. used (total)      471  
   data-arc span      7632 days (20.90 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55619  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 06:27:16  

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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