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9738 (1987 DF6)
Classification: Main-belt Asteroid          SPK-ID: 2009738
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1218214177977485 5.6283e-08  
a 2.667269188768153 2.499e-08 AU
q 2.342338674544166 1.4813e-07 AU
i 12.52060901488822 8.342e-06 deg
node 329.9547403108909 2.764e-05 deg
peri 250.1891511230283 4.6281e-05 deg
M 85.01604280167913 3.6223e-05 deg
tp 2456624.751647886011
(2013-Nov-28.25164789)
0.00016122 JED
period 1591.104482204439
4.36
2.2361e-05
6.122e-08
d
yr
n .2262579258787759 3.1798e-09 deg/d
Q 2.99219970299214 2.8035e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      12349 days (33.81 yr)  
   first obs. used      1980-09-13  
   last obs. used      2014-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48874  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:22:28  

Additional Information
 Earth MOID = 1.37251 AU 
 T_jup = 3.338 
[ 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 12.9 mag n/a MPO266010  

9738 (1987 DF6)          Discovered 1987-Feb-23 by Debehogne, H. at La Silla (809)
Reference: 19981208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1987 DF6 = 1980 RR7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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