Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
193794 (2001 OB87)
Classification: Main-belt Asteroid          SPK-ID: 2193794
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2410514396851114 4.1528e-08  
a 2.342750976835052 8.2604e-09 au
q 1.778027481045262 9.7096e-08 au
i 6.920893770333024 4.6593e-06 deg
node 135.0682496328634 4.8129e-05 deg
peri 202.4763832092419 4.9757e-05 deg
M 86.69828128629251 1.2273e-05 deg
tp 2458685.075367579361
(2019-Jul-20.57536758)
4.4222e-05 TDB
period 1309.747621137485
3.59
6.9272e-06
1.897e-08
d
yr
n .2748621140364039 1.4537e-09 deg/d
Q 2.907474472624842 1.0252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      6675 days (18.28 yr)  
   first obs. used      2001-07-22  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59858  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 21:48:06  

Additional Information
 Earth MOID = .770642 au 
 Jupiter MOID = 2.48344 au 
 T_jup = 3.514 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO291489  

193794 (2001 OB87)          Discovered 2001-Jul-29 by NEAT at Palomar
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-05 21:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin