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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262718078844442 1.8062e-08  
a 2.607683058471508 8.9599e-09 au
q 2.278406204288673 4.6125e-08 au
i 15.60928202701093 7.1019e-07 deg
node 59.42345505797247 3.8463e-06 deg
peri 307.1306265197333 7.5215e-06 deg
M 41.49991535331462 6.9122e-06 deg
tp 2459023.193219014928
(2020-Jun-22.69321901)
2.9531e-05 TDB
period 1538.086056590658
4.21
7.9272e-06
2.17e-08
d
yr
n .2340571247346073 1.2063e-09 deg/d
Q 2.936959912654342 1.0091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2144  
   data-arc span      15442 days (42.28 yr)  
   first obs. used      1978-11-29  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40478  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:26:25  

Additional Information
 Earth MOID = 1.31281 au 
 Jupiter MOID = 2.57685 au 
 T_jup = 3.348 
[ 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 13.31   n/a E2021B10  
diameter diameter 6.261 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 17.6089 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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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