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
JPL Small-Body Database Browser
Search: [ help ]  
215265 (2001 OB55)
Classification: Main-belt Asteroid          SPK-ID: 2215265
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2070735454197017 5.1928e-08  
a 2.690362936334556 2.0671e-08 au
q 2.133259944642 1.4865e-07 au
i 13.96664257912533 4.6763e-06 deg
node 96.48467051062963 2.237e-05 deg
peri 294.9563552290267 2.5716e-05 deg
M 34.85954271640536 1.1324e-05 deg
tp 2458844.424793269637
(2019-Dec-26.92479327)
5.0542e-05 TDB
period 1611.813295430534
4.41
1.8576e-05
5.086e-08
d
yr
n .2233509309177399 2.5742e-09 deg/d
Q 3.247465928027111 2.4952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      7033 days (19.26 yr)  
   first obs. used      2001-07-22  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5336  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:43:05  

Additional Information
 Earth MOID = 1.18255 au 
 Jupiter MOID = 2.28475 au 
 T_jup = 3.299 
[ 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 15.8   n/a MPO450015  

215265 (2001 OB55)          Discovered 2001-Jul-22 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ 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-Dec-03 02:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin