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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0986854354487466 9.2717e-08  
a 2.479006133099113 1.73e-08 AU
q 2.234364333374113 2.2764e-07 AU
i 2.314991978870688 7.9856e-06 deg
node .1297108423880171 0.00014253 deg
peri 49.18785943244596 0.00014659 deg
M 332.2236572271556 3.5249e-05 deg
tp 2456910.498659044283
(2014-Sep-09.99865904)
0.0001399 JED
period 1425.656270870056
3.90
1.4924e-05
4.086e-08
d
yr
n .2525152853150903 2.6433e-09 deg/d
Q 2.723647932824112 1.9007e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1015  
   data-arc span      12926 days (35.39 yr)  
   first obs. used      1978-07-10  
   last obs. used      2013-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51467  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Dec-19 23:59:19  

Additional Information
 Earth MOID = 1.244 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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