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7725 Sel'vinskij (1972 RX1)
Classification: Main-belt Asteroid          SPK-ID: 2007725
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1823671773797331 4.4776e-08  
a 2.43824203400159 7.92e-09 au
q 1.993586716492101 1.0727e-07 au
i 4.009650908369003 3.9722e-06 deg
node 178.1208135198275 4.9009e-05 deg
peri 221.8866426898275 4.9827e-05 deg
M 163.2228730689258 8.2403e-06 deg
tp 2458369.989729603799
(2018-Sep-08.48972960)
3.1279e-05 TDB
period 1390.636576080742
3.81
6.7757e-06
1.855e-08
d
yr
n .2588742495286548 1.2613e-09 deg/d
Q 2.882897351511079 9.3644e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1918  
   data-arc span      17395 days (47.62 yr)  
   first obs. used      1972-09-11  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49618  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:50:05  

Additional Information
 Earth MOID = 1.00345 au 
 Jupiter MOID = 2.533 au 
 T_jup = 3.477 
[ 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 14.2   n/a MPO416798  
diameter diameter 9.907 km 0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7725 Sel'vinskij (1972 RX1)          Discovered 1972-Sep-11 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1972 RX1 = 1972 TO3 = 1991 RT1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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