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300731 (2007 VR142)
Classification: Main-belt Asteroid          SPK-ID: 2300731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08818876067198779 8.0951e-08  
a 2.78305249159688 3.2662e-08 au
q 2.537618541477864 2.254e-07 au
i 4.068672945331216 9.064e-06 deg
node 199.463451583398 7.6976e-05 deg
peri 161.6526249155528 8.3165e-05 deg
M 216.524951840858 3.4486e-05 deg
tp 2459276.356355141317
(2021-Mar-02.85635514)
0.00016923 TDB
period 1695.823008757574
4.64
2.9854e-05
8.174e-08
d
yr
n .2122863047269007 3.7371e-09 deg/d
Q 3.028486441715897 3.5543e-08 au
  Orbit Determination Parameters
   # obs. used (total)      210  
   data-arc span      6993 days (19.15 yr)  
   first obs. used      2000-04-10  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:49:45  

Additional Information
 Earth MOID = 1.53412 au 
 Jupiter MOID = 2.387 au 
 T_jup = 3.323 
[ 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 16.6   n/a MPO437340  
diameter diameter 3.422 km 0.694 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.029   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

300731 (2007 VR142)          Discovered 2007-Nov-04 by Spacewatch at Kitt Peak
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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