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9763 (1991 RU17)
Classification: Main-belt Asteroid          SPK-ID: 2009763
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02939753194756829 5.4334e-08  
a 2.245399697704507 1.0335e-08 au
q 2.179390488356178 1.1875e-07 au
i 3.311387308901414 5.0326e-06 deg
node 191.0729765019462 7.8564e-05 deg
peri 178.5847804059843 0.00011573 deg
M 64.05035208134632 8.3694e-05 deg
tp 2457181.845742918206
(2015-Jun-08.34574292)
0.0002859 JED
period 1228.963307640747
3.36
8.4848e-06
2.323e-08
d
yr
n .2929298195981909 2.0224e-09 deg/d
Q 2.311408907052836 1.0639e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1355  
   data-arc span      10958 days (30.00 yr)  
   first obs. used      1985-12-18  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46501  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:11:50  

Additional Information
 Earth MOID = 1.17542 au 
 Jupiter MOID = 2.77701 au 
 T_jup = 3.628 
[ 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 13.7 mag n/a MPO358725  

9763 (1991 RU17)          Discovered 1991-Sep-13 by Holt, H. E. at Palomar
Reference: 19981208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RU17 = 1985 YT = 1990 FL1 = 1991 PQ17 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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