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101421 (1998 VS17)
Classification: Main-belt Asteroid          SPK-ID: 2101421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1950318851067061 5.6879e-08  
a 3.116040386378 2.3203e-08 au
q 2.50831315575407 1.7094e-07 au
i 17.88807872823512 6.4986e-06 deg
node 38.85595973170058 1.4803e-05 deg
peri 328.1026146230188 1.922e-05 deg
M 357.7903910478886 1.1329e-05 deg
tp 2459012.831501600370
(2020-Jun-12.33150160)
6.3251e-05 TDB
period 2009.10689282427
5.50
2.244e-05
6.144e-08
d
yr
n .1791840948263016 2.0014e-09 deg/d
Q 3.72376761700193 2.7728e-08 au
  Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      8044 days (22.02 yr)  
   first obs. used      1998-10-22  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:00:42  

Additional Information
 Earth MOID = 1.52663 au 
 Jupiter MOID = 1.79047 au 
 T_jup = 3.114 
[ 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 14.2   n/a MPO439694  
diameter diameter 3.929 km 0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.262   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101421 (1998 VS17)          Discovered 1998-Nov-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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