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 ]  
23121 Michaelding (2000 AP51)
Classification: Main-belt Asteroid          SPK-ID: 2023121
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06001842161754653 6.7822e-08  
a 2.738753585266374 3.2412e-08 AU
q 2.57437791787929 1.9298e-07 AU
i 6.381060229872685 9.7547e-06 deg
node 330.7849449776628 5.7121e-05 deg
peri 115.8841883261994 0.00010152 deg
M 31.41061628995385 8.2486e-05 deg
tp 2456656.055229807260
(2013-Dec-29.55522981)
0.00037904 JED
period 1655.494969897097
4.53
2.9388e-05
8.046e-08
d
yr
n .2174576223704124 3.8603e-09 deg/d
Q 2.903129252653459 3.4357e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      593  
   data-arc span      8042 days (22.02 yr)  
   first obs. used      1992-03-07  
   last obs. used      2014-03-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51697  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:13:00  

Additional Information
 Earth MOID = 1.598 AU 
 T_jup = 3.339 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO267793  

23121 Michaelding           Discovered 2000 Jan. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro.
Michael Ding (b. 1990) was awarded second place in the 2007 Intel International Science and Engineering Fair for his chemistry project. He attends the Glen Cove High School, Glen Cove, New York, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070828/MPCPages.arcLast Updated: 2007-08-30
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-28 14:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin