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9585 (1990 QY2)
Classification: Main-belt Asteroid          SPK-ID: 2009585
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09870540711278523 9.1404e-08  
a 2.479054464669008 1.8331e-08 AU
q 2.234358384479086 2.2674e-07 AU
i 2.314973649680139 7.7081e-06 deg
node .1282992877150483 0.00013911 deg
peri 49.2450501593859 0.00014308 deg
M 22.68034396479498 3.5107e-05 deg
tp 2456910.679666091919
(2014-Sep-10.17966609)
0.00013866 JED
period 1425.697963712578
3.90
1.5813e-05
4.329e-08
d
yr
n .252507900805683 2.8007e-09 deg/d
Q 2.72375054485893 2.0141e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1016  
   data-arc span      9719 days (26.61 yr)  
   first obs. used      1988-01-23  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47798  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:55:18  

Additional Information
 Earth MOID = 1.24486 AU 
 T_jup = 3.472 
[ 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 13.9 mag n/a MPO267746  

9585 (1990 QY2)          Discovered 1990-Aug-28 by Holt, H. E. at Palomar (675)
Reference: 19981110/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QY2 = 1978 NH7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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