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21920 (1999 VZ47)
Classification: Main-belt Asteroid          SPK-ID: 2021920
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1223263694339029 5.2927e-08  
a 3.06759792516822 2.5396e-08 au
q 2.692349808099419 1.5952e-07 au
i 10.41967068593373 4.6798e-06 deg
node 289.9357990325805 3.3163e-05 deg
peri 279.7272786557895 4.1007e-05 deg
M 156.6616397055075 2.8187e-05 deg
tp 2458346.503192976295
(2018-Aug-16.00319298)
0.00014814 TDB
period 1962.43861041195
5.37
2.437e-05
6.672e-08
d
yr
n .1834452288545371 2.2781e-09 deg/d
Q 3.442846042237022 2.8503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1062  
   data-arc span      9214 days (25.23 yr)  
   first obs. used      1995-11-18  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50834  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:55:26  

Additional Information
 Earth MOID = 1.71084 au 
 Jupiter MOID = 1.73121 au 
 T_jup = 3.195 
[ 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 14.01   n/a E2021B10  

21920 (1999 VZ47)          Discovered 1999-Nov-03 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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