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 ]  
146510 (2001 SD81)
Classification: Main-belt Asteroid          SPK-ID: 2146510
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .107977453257866 3.6513e-08  
a 2.658226626189236 1.4965e-08 au
q 2.371198084911073 9.7252e-08 au
i 3.880184726509246 4.6461e-06 deg
node 293.4212289470083 5.9051e-05 deg
peri 120.7673037095588 6.3554e-05 deg
M 50.40163915658587 2.1983e-05 deg
tp 2458778.869976466551
(2019-Oct-22.36997647)
9.6475e-05 TDB
period 1583.020112186491
4.33
1.3368e-05
3.66e-08
d
yr
n .2274134088560394 1.9204e-09 deg/d
Q 2.945255167467399 1.6581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      523  
   data-arc span      6712 days (18.38 yr)  
   first obs. used      2001-09-12  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52883  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:37:49  

Additional Information
 Earth MOID = 1.38554 au 
 Jupiter MOID = 2.36209 au 
 T_jup = 3.375 
[ 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 16.0   n/a MPO453930  

146510 (2001 SD81)          Discovered 2001-Sep-20 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Alternate Designations
 2001 SD81 = 2002 YZ27 
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-02 18:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin