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39535 (1990 RX7)
Classification: Main-belt Asteroid          SPK-ID: 2039535
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04777640604296657 5.6471e-08  
a 2.743216121789034 3.1749e-08 AU
q 2.612155114490829 1.6245e-07 AU
i 6.054144580805875 9.6984e-06 deg
node 161.3206631269714 6.4771e-05 deg
peri 299.3343739679945 0.00013231 deg
M 12.07542339904294 0.00011473 deg
tp 2456944.834215999599
(2014-Oct-14.33421600)
0.0005287 JED
period 1659.542823296163
4.54
2.8811e-05
7.888e-08
d
yr
n .2169272132941845 3.766e-09 deg/d
Q 2.874277129087239 3.3266e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      562  
   data-arc span      8783 days (24.05 yr)  
   first obs. used      1990-09-14  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54201  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 15:22:21  

Additional Information
 Earth MOID = 1.63529 AU 
 T_jup = 3.339 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO270344  

39535 (1990 RX7)          Discovered 1990-Sep-14 by Debehogne, H. at La Silla (809)
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 RX7 = 1995 UW74 = 1999 RK77 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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