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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0999034250294855 8.5242e-08  
a 2.479017048554653 1.3949e-08 au
q 2.231354754697557 2.0959e-07 au
i 2.314444299328987 6.5623e-06 deg
node .1188887193083009 0.00012161 deg
peri 49.37142583109976 0.0001244 deg
M 173.9358721091376 2.7787e-05 deg
tp 2456911.682209449075
(2014-Sep-11.18220945)
0.00010779 JED
period 1425.665686965017
3.90
1.2033e-05
3.294e-08
d
yr
n .2525136175272442 2.1313e-09 deg/d
Q 2.726679342411749 1.5343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1252  
   data-arc span      10311 days (28.23 yr)  
   first obs. used      1988-01-23  
   last obs. used      2016-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45841  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:05:49  

Additional Information
 Earth MOID = 1.24069 au 
 Jupiter MOID = 2.58608 au 
 T_jup = 3.471 
[ 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
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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