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2810 Lev Tolstoj (1978 RU5)
Classification: Main-belt Asteroid          SPK-ID: 2002810
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1534084865470173 3.2348e-08  
a 2.606062528697766 9.6331e-09 au
q 2.206270420323349 8.7086e-08 au
i 12.70420818179419 5.1606e-06 deg
node 193.1730234481736 1.4828e-05 deg
peri 259.8129116252757 2.248e-05 deg
M 263.8721976535517 1.7168e-05 deg
tp 2459410.819528901063
(2021-Jul-15.31952890)
7.3794e-05 TDB
period 1536.652527143103
4.21
8.5201e-06
2.333e-08
d
yr
n .2342754745402988 1.299e-09 deg/d
Q 3.005854637072183 1.1111e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2227  
   data-arc span      24488 days (67.04 yr)  
   first obs. used      1953-10-10  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45111  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:05:51  

Additional Information
 Earth MOID = 1.26356 au 
 Jupiter MOID = 2.31718 au 
 T_jup = 3.361 
[ 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 12.5   n/a MPO448940  
diameter diameter 7.910 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.257   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2810 Lev Tolstoj (1978 RU5)          Discovered 1978-Sep-13 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1978 RU5 = 1957 UW = 1976 GG2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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