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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04387723347160196 5.5392e-08  
a 3.172286720132084 3.3916e-08 AU
q 3.033095555073986 1.6803e-07 AU
i 9.53264004164752 9.0641e-06 deg
node 305.6371388736493 4.247e-05 deg
peri 286.5165804000538 0.00013566 deg
M 116.4313348836112 0.00012851 deg
tp 2456333.041216591259
(2013-Feb-09.54121659)
0.00073861 JED
period 2063.749954145455
5.65
3.3097e-05
9.061e-08
d
yr
n .1744397373707352 2.7975e-09 deg/d
Q 3.311477885190182 3.5404e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1085  
   data-arc span      10320 days (28.25 yr)  
   first obs. used      1986-09-08  
   last obs. used      2014-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47379  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:21:27  

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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