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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04446006942787299 5.0926e-08  
a 3.170455297676284 3.0168e-08 au
q 3.029496635023628 1.5757e-07 au
i 9.533069593038105 6.9189e-06 deg
node 305.6251006628185 3.7609e-05 deg
peri 286.3776809712367 0.00010445 deg
M 221.2919331195002 9.9265e-05 deg
tp 2458394.974745459737
(2018-Oct-03.47474546)
0.00057043 JED
period 2061.963047988481
5.65
2.9431e-05
8.058e-08
d
yr
n .1745909076068036 2.492e-09 deg/d
Q 3.311413960328939 3.151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1277  
   data-arc span      10777 days (29.51 yr)  
   first obs. used      1986-09-08  
   last obs. used      2016-03-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48882  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 15:58:14  

Additional Information
 Earth MOID = 2.0353 au 
 Jupiter MOID = 1.8225 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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