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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0442707249144218 5.1479e-08  
a 3.171014041655946 3.0615e-08 au
q 3.030630951318027 1.5874e-07 au
i 9.532517492146573 7.2568e-06 deg
node 305.6295133217413 3.8517e-05 deg
peri 286.3348039841074 0.00010865 deg
M 186.4115881874673 0.00010299 deg
tp 2458395.020875374447
(2018-Oct-03.52087537)
0.00059168 JED
period 2062.508155909934
5.65
2.9869e-05
8.178e-08
d
yr
n .1745447643290292 2.5278e-09 deg/d
Q 3.311397131993865 3.1971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1211  
   data-arc span      10695 days (29.28 yr)  
   first obs. used      1986-09-08  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48748  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:05:38  

Additional Information
 Earth MOID = 2.03565 au 
 Jupiter MOID = 1.82212 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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