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7942 (1991 OK1)
Classification: Main-belt Asteroid          SPK-ID: 2007942
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04387723212121222 5.5304e-08  
a 3.172286718995013 3.3817e-08 AU
q 3.03309555827063 1.6787e-07 AU
i 9.532639949834749 9.011e-06 deg
node 305.6371386980732 4.2403e-05 deg
peri 286.5165868565252 0.00013489 deg
M 116.431328876125 0.00012775 deg
tp 2456333.041251388872
(2013-Feb-09.54125139)
0.0007342 JED
period 2063.749953035864
5.65
3.2999e-05
9.035e-08
d
yr
n .1744397374645241 2.7893e-09 deg/d
Q 3.311477879719396 3.53e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1091  
   data-arc span      10564 days (28.92 yr)  
   first obs. used      1986-09-08  
   last obs. used      2015-08-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47295  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:23:34  

Additional Information
 Earth MOID = 2.04052 AU 
 T_jup = 3.179 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.9 mag n/a MPO233563  

7942 (1991 OK1)          Discovered 1991-Jul-18 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 OK1 = 1986 RO9 = 1989 AA7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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