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JPL Small-Body Database Browser
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243750 (2000 QS121)
Classification: Main-belt Asteroid          SPK-ID: 2243750
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .209363991769992 4.7137e-08  
a 2.259322433905179 9.2311e-09 au
q 1.786301670447297 1.0753e-07 au
i 5.828903323961918 5.0041e-06 deg
node 323.3659421232367 4.1322e-05 deg
peri 56.37416375079543 4.2609e-05 deg
M 158.9562629195046 9.4841e-06 deg
tp 2458052.802331722585
(2017-Oct-26.30233172)
3.2065e-05 TDB
period 1240.411399705068
3.40
7.6021e-06
2.081e-08
d
yr
n .2902262911205081 1.7787e-09 deg/d
Q 2.732343197363061 1.1164e-08 au
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      6824 days (18.68 yr)  
   first obs. used      2000-07-31  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52577  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:05:21  

Additional Information
 Earth MOID = .795147 au 
 Jupiter MOID = 2.7567 au 
 T_jup = 3.585 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO338728  

243750 (2000 QS121)          Discovered 2000-Aug-25 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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