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9740 (1987 ST11)
Classification: Main-belt Asteroid          SPK-ID: 2009740
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1312786336004975 4.6674e-08  
a 2.360945861548093 1.3208e-08 au
q 2.05100411483931 1.0779e-07 au
i 5.788904547742943 5.0492e-06 deg
node 45.26902702471136 4.8394e-05 deg
peri 355.838416118442 5.2375e-05 deg
M 262.7628817252821 2.1679e-05 deg
tp 2457758.396167965691
(2017-Jan-04.89616797)
8.1283e-05 JED
period 1325.035364619075
3.63
1.1119e-05
3.044e-08
d
yr
n .2716908617027696 2.2798e-09 deg/d
Q 2.670887608256876 1.4941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1060  
   data-arc span      16213 days (44.39 yr)  
   first obs. used      1971-03-24  
   last obs. used      2015-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .493  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:28:47  

Additional Information
 Earth MOID = 1.05799 au 
 Jupiter MOID = 2.72249 au 
 T_jup = 3.533 
[ 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 14.0 mag n/a MPO344381  

9740 (1987 ST11)          Discovered 1987-Sep-23 by Debehogne, H. at La Silla
Reference: 19981208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1987 ST11 = 1969 UQ2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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