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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09870544376476389 8.7092e-08  
a 2.479054451952651 1.5421e-08 AU
q 2.234358282155651 2.1302e-07 AU
i 2.314974582154699 6.6281e-06 deg
node .128308153906413 0.00013625 deg
peri 49.24502271733709 0.00013962 deg
M 22.6803671608408 3.0146e-05 deg
tp 2456910.679574920369
(2014-Sep-10.17957492)
0.00011927 JED
period 1425.697952742861
3.90
1.3303e-05
3.642e-08
d
yr
n .2525079027485491 2.3562e-09 deg/d
Q 2.723750621749651 1.6944e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1112  
   data-arc span      9914 days (27.14 yr)  
   first obs. used      1988-01-23  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46586  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:35:31  

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
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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