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JPL Small-Body Database Browser
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20676 (1999 VA7)
Classification: Outer Main-belt Asteroid          SPK-ID: 2020676
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08505059060617008 4.0036e-08  
a 3.216789749162089 2.4209e-08 au
q 2.94319988113998 1.2694e-07 au
i 23.49062989400074 4.8128e-06 deg
node 106.3660659851748 1.2787e-05 deg
peri 24.50721049619723 3.7641e-05 deg
M 60.05551029118109 3.3926e-05 deg
tp 2458248.953481070195
(2018-May-10.45348107)
0.00019848 TDB
period 2107.329472368403
5.77
2.3789e-05
6.513e-08
d
yr
n .1708323281766663 1.9285e-09 deg/d
Q 3.490379617184198 2.6268e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1331  
   data-arc span      10641 days (29.13 yr)  
   first obs. used      1990-03-24  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45773  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:54:25  

Additional Information
 Earth MOID = 1.97027 au 
 Jupiter MOID = 1.67977 au 
 T_jup = 3.055 
[ 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 12.8   n/a MPO474037  
diameter diameter 17.570 km 0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.605 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 0.036   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20676 (1999 VA7)          Discovered 1999-Nov-08 by Juels, C. W. at Fountain Hills
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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