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20694 (1999 VT82)
Classification: Main-belt Asteroid          SPK-ID: 2020694
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1241363243825864 5.5463e-08  
a 2.75270178466924 1.6552e-08 au
q 2.410991502999015 1.5706e-07 au
i 4.825429529271413 6.314e-06 deg
node 1.758650811108786 5.075e-05 deg
peri 122.3245430854382 5.6384e-05 deg
M 349.8687495301316 2.21e-05 deg
tp 2458647.445906026064
(2019-Jun-12.94590603)
0.00010245 TDB
period 1668.157965262769
4.57
1.5046e-05
4.119e-08
d
yr
n .215806900483368 1.9464e-09 deg/d
Q 3.094412066339465 1.8606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      8493 days (23.25 yr)  
   first obs. used      1995-12-07  
   last obs. used      2019-03-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52486  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:44:09  

Additional Information
 Earth MOID = 1.43091 au 
 Jupiter MOID = 1.96822 au 
 T_jup = 3.329 
[ 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 14.7   n/a MPO467947  
diameter diameter 3.396 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.322 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.127   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20694 (1999 VT82)          Discovered 1999-Nov-01 by Spacewatch at Kitt Peak
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 VT82 = 1997 EP51 = 1999 RN242 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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