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20677 (1999 VT7)
Classification: Main-belt Asteroid          SPK-ID: 2020677
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268207747114706 4.8344e-08  
a 2.609475208275661 1.4448e-08 au
q 2.278539540771765 1.2602e-07 au
i 15.6151201964709 5.942e-06 deg
node 59.44281629930126 1.7933e-05 deg
peri 306.7757865737713 2.9112e-05 deg
M 261.4585286782017 2.6557e-05 deg
tp 2459021.948712304416
(2020-Jun-21.44871230)
0.00011538 TDB
period 1539.671920811146
4.22
1.2787e-05
3.501e-08
d
yr
n .2338160455705012 1.9419e-09 deg/d
Q 2.940410875779556 1.6281e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1352  
   data-arc span      14732 days (40.33 yr)  
   first obs. used      1978-11-29  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47848  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:43:56  

Additional Information
 Earth MOID = 1.31383 au 
 Jupiter MOID = 2.57194 au 
 T_jup = 3.347 
[ 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 13.2   n/a MPO263532  
diameter diameter 6.261 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20677 (1999 VT7)          Discovered 1999-Nov-07 by Korlevic, K. at Visnjan
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 VT7 = 1978 WT1 = 1985 KY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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