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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0477764066287351 5.6482e-08  
a 2.743216119206651 3.2071e-08 AU
q 2.612155110424934 1.6261e-07 AU
i 6.054144175766305 9.8136e-06 deg
node 161.3206615033405 6.5059e-05 deg
peri 299.3343655785447 0.00013365 deg
M 12.07543422501457 0.00011631 deg
tp 2456944.834166172193
(2014-Oct-14.33416617)
0.00053597 JED
period 1659.542820952797
4.54
2.9103e-05
7.968e-08
d
yr
n .2169272136004978 3.8041e-09 deg/d
Q 2.874277127988369 3.3603e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      555  
   data-arc span      8452 days (23.14 yr)  
   first obs. used      1990-09-14  
   last obs. used      2013-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53553  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 04:59:38  

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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