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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04387723345291845 5.5604e-08  
a 3.172286720773204 3.4192e-08 AU
q 3.033095555746245 1.6916e-07 AU
i 9.532640212176462 9.1256e-06 deg
node 305.6371380324046 4.2537e-05 deg
peri 286.5165786174143 0.00013589 deg
M 116.4313373123579 0.00012864 deg
tp 2456333.041202465791
(2013-Feb-09.54120247)
0.00073941 JED
period 2063.749954771082
5.65
3.3365e-05
9.135e-08
d
yr
n .1744397373178537 2.8202e-09 deg/d
Q 3.311477885800163 3.5692e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1065  
   data-arc span      10249 days (28.06 yr)  
   first obs. used      1986-09-08  
   last obs. used      2014-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47541  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:11:23  

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 (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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