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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04833915370704277 5.1465e-08  
a 2.741424534038391 2.2587e-08 au
q 2.608906392111251 1.3967e-07 au
i 6.058226991755442 6.9928e-06 deg
node 161.3102966418182 4.9233e-05 deg
peri 297.9087227811527 9.1202e-05 deg
M 143.6374770035409 7.3991e-05 deg
tp 2456939.002607055648
(2014-Oct-08.50260706)
0.00034122 JED
period 1657.917323722528
4.54
2.049e-05
5.61e-08
d
yr
n .2171398988652165 2.6836e-09 deg/d
Q 2.873942675965531 2.3679e-08 au
  Orbit Determination Parameters
   # obs. used (total)      832  
   data-arc span      9346 days (25.59 yr)  
   first obs. used      1990-09-14  
   last obs. used      2016-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50549  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 14:14:41  

Additional Information
 Earth MOID = 1.63083 au 
 Jupiter MOID = 2.19554 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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