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21961 (1999 VE203)
Classification: Main-belt Asteroid          SPK-ID: 2021961
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1162595298454632 9.5129e-09  
a 2.996959939771509 1.459e-08 au
q 2.648534786207986 2.4419e-08 au
i 11.39311573678463 9.7237e-07 deg
node 88.40109052695607 2.0581e-06 deg
peri 270.3227068402272 1.0559e-05 deg
M 38.53761493028883 9.8121e-06 deg
tp 2458997.637316681771
(2020-May-28.13731668)		 5.1547e-05 TDB
period 1895.046336590068
5.19		 1.3838e-05
3.789e-08		 d
yr
n .1899689696494605 1.3872e-09 deg/d
Q 3.345385093335032 1.6286e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2037  
   data-arc span      24066 days (65.89 yr)  
   first obs. used      1955-04-13  
   last obs. used      2021-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46582  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 03:06:27  

Additional Information
 Earth MOID = 1.67462 au 
 Jupiter MOID = 2.15364 au 
 T_jup = 3.214 
[ 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 13.04   n/a E2021B10  

21961 (1999 VE203)          Discovered 1999-Nov-08 by CSS at Catalina
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 VE203 = 1982 LA = 1999 RJ240 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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