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213609 (2002 PL121)
Classification: Main-belt Asteroid          SPK-ID: 2213609
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1396525728141424 4.8758e-08  
a 2.610763622494098 1.539e-08 au
q 2.246163765603227 1.2284e-07 au
i 15.59654412298146 5.5783e-06 deg
node 168.0372787686836 1.5836e-05 deg
peri 158.7331828903299 2.4282e-05 deg
M 129.0199550975243 1.7635e-05 deg
tp 2458648.290159439071
(2019-Jun-13.79015944)
7.4853e-05 TDB
period 1540.812368533748
4.22
1.3625e-05
3.73e-08
d
yr
n .2336429842801556 2.066e-09 deg/d
Q 2.97536347938497 1.754e-08 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      8145 days (22.30 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59465  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:23  

Additional Information
 Earth MOID = 1.24034 au 
 Jupiter MOID = 2.44573 au 
 T_jup = 3.344 
[ 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 16.30   n/a MPCxxxxx  

213609 (2002 PL121)          Discovered 2002-Aug-13 by LONEOS at Anderson Mesa
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

Alternate Designations
 2002 PL121 = 1998 SP155 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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