Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
7942 (1991 OK1)
Classification: Main-belt Asteroid          SPK-ID: 2007942
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04387723275779178 5.813e-08  
a 3.172286720705068 3.6296e-08 AU
q 3.03309555788624 1.8136e-07 AU
i 9.532641413854758 9.2228e-06 deg
node 305.6371276462168 4.3894e-05 deg
peri 286.5165911770724 0.00013687 deg
M 116.4313349297732 0.00012878 deg
tp 2456333.041216145792
(2013-Feb-09.54121615)
0.0007404 JED
period 2063.749954704593
5.65
3.5419e-05
9.697e-08
d
yr
n .1744397373234737 2.9938e-09 deg/d
Q 3.311477883523897 3.7889e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1022  
   data-arc span      10221 days (27.98 yr)  
   first obs. used      1986-09-08  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47662  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:52:45  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Sep-16 11:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin