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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0437645722793896 6.5211e-08  
a 3.172755153738964 4.2094e-08 AU
q 3.033900881488349 2.1446e-07 AU
i 9.532682028879414 9.2818e-06 deg
node 305.6375958759928 4.637e-05 deg
peri 286.6864380407715 0.00013933 deg
M 81.38662605412119 0.00012971 deg
tp 2456333.836527562419
(2013-Feb-10.33652756)
0.00074566 JED
period 2064.207084414727
5.65
4.108e-05
1.125e-07
d
yr
n .1744011067097332 3.4708e-09 deg/d
Q 3.311609425989579 4.3936e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      978  
   data-arc span      10151 days (27.79 yr)  
   first obs. used      1986-09-08  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47682  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:18:24  

Additional Information
 Earth MOID = 2.03969 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 (809)
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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