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20425 (1998 VD35)
Classification: Apollo [NEO, PHA]          SPK-ID: 2020425
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4764302167107036 1.266e-07  
a 1.564710123184041 5.8229e-08 au
q .8192349401060368 1.881e-07 au
i 6.983741745722786 3.7771e-05 deg
node 227.3632439006437 0.00013889 deg
peri 296.1519627637072 0.00013507 deg
M 47.77447319686852 0.00018815 deg
tp 2459105.626991762347
(2020-Sep-13.12699176)
0.00036837 TDB
period 714.906532298377
1.96
3.9907e-05
1.093e-07
d
yr
n .5035623312080026 2.8109e-08 deg/d
Q 2.310185306262046 8.5971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      2448 days (6.70 yr)  
   first obs. used      1998-11-15  
   last obs. used      2005-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .62984  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:20:21  

Additional Information
 Earth MOID = .00361725 au 
 Jupiter MOID = 2.70354 au 
 T_jup = 4.283 
[ 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 20.4   n/a PDS3 (MPO 7830)  
SMASSII spectral type spec_B Sq   n/a Binzel et al. (2004) Icarus 170, 259-294  

20425 (1998 VD35)          Discovered 1998-Nov-15 by Spacewatch at Kitt Peak
Reference: 20010109/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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