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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1163463162946254 9.4891e-09  
a 2.997657794002153 1.4559e-08 au
q 2.64889135215813 2.4365e-08 au
i 11.39233978082511 9.7227e-07 deg
node 88.40237140126433 2.0579e-06 deg
peri 270.4214917295635 1.0554e-05 deg
M 75.66595501949635 9.8323e-06 deg
tp 2458998.053951771043
(2020-May-28.55395177)		 5.1533e-05 TDB
period 1895.708278914411
5.19		 1.3811e-05
3.781e-08		 d
yr
n .1899026363941166 1.3835e-09 deg/d
Q 3.346424235846177 1.6253e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2089  
   data-arc span      24107 days (66.00 yr)  
   first obs. used      1955-04-13  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46063  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:38:16  

Additional Information
 Earth MOID = 1.67581 au 
 Jupiter MOID = 2.15272 au 
 T_jup = 3.214 
[ 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 13.04   n/a E2021B10  

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

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