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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04828142135879497 5.4724e-08  
a 2.742108542516344 2.556e-08 au
q 2.609715644563562 1.5292e-07 au
i 6.058191374236281 7.8991e-06 deg
node 161.310404907683 5.1022e-05 deg
peri 298.2190378052334 0.00010789 deg
M 99.89586519188251 8.9832e-05 deg
tp 2456940.274793421387
(2014-Oct-09.77479342)
0.00041563 JED
period 1658.537858899927
4.54
2.319e-05
6.349e-08
d
yr
n .2170586568574203 3.0349e-09 deg/d
Q 2.874501440469127 2.6794e-08 au
  Orbit Determination Parameters
   # obs. used (total)      776  
   data-arc span      8980 days (24.59 yr)  
   first obs. used      1990-09-14  
   last obs. used      2015-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50191  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:23:22  

Additional Information
 Earth MOID = 1.63293 au 
 Jupiter MOID = 2.19461 au 
 T_jup = 3.340 
[ 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 14.8 mag n/a MPO337578  

39535 (1990 RX7)          Discovered 1990-Sep-14 by Debehogne, H. at La Silla
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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