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 ]  
146537 (2001 SP231)
Classification: Main-belt Asteroid          SPK-ID: 2146537
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05187391775322207 3.3181e-08  
a 2.905776974088316 2.185e-08 au
q 2.755042938325253 1.0369e-07 au
i 3.182256229004058 4.4325e-06 deg
node 72.51126811879972 7.6416e-05 deg
peri 220.3776291286118 9.0423e-05 deg
M 358.3286875377664 4.8951e-05 deg
tp 2459008.899375452060
(2020-Jun-08.39937545)
0.00024602 TDB
period 1809.221932504668
4.95
2.0407e-05
5.587e-08
d
yr
n .198980563706532 2.2444e-09 deg/d
Q 3.05651100985138 2.2984e-08 au
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      6496 days (17.79 yr)  
   first obs. used      2001-09-19  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50561  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:38:00  

Additional Information
 Earth MOID = 1.73984 au 
 Jupiter MOID = 2.03268 au 
 T_jup = 3.281 
[ 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 15.4   n/a MPO436736  
rotation period rot_per 5.83 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]

146537 (2001 SP231)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ 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-Jul-05 15:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin