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JPL Small-Body Database Browser
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27101 Wenyucao (1998 VK7)
Classification: Main-belt Asteroid          SPK-ID: 2027101
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1674254326160659 3.5105e-08  
a 2.281532611504214 9.268e-09 au
q 1.899546026995458 8.178e-08 au
i 5.369202710569366 3.6701e-06 deg
node 264.5098677652922 4.1979e-05 deg
peri 46.64526230553937 4.3744e-05 deg
M 41.21122354819499 1.1453e-05 deg
tp 2458456.404155666468
(2018-Dec-03.90415567)
3.9975e-05 TDB
period 1258.746998846227
3.45
7.6699e-06
2.1e-08
d
yr
n .2859986957903197 1.7427e-09 deg/d
Q 2.66351919601297 1.082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      21597 days (59.13 yr)  
   first obs. used      1960-10-17  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51527  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:34:23  

Additional Information
 Earth MOID = .888964 au 
 Jupiter MOID = 2.5889 au 
 T_jup = 3.581 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456848.5 (2014-Jul-10.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1680605319019702 3.509e-08  
q 1.897790316963856 8.1789e-08 au
tp 2457198.393970303089
(2015-Jun-24.89397030)
3.998e-05 TDB
node 264.5606418113787 4.2017e-05 deg
peri 46.83736005177659 4.3766e-05 deg
i 5.367015772432385 3.6691e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      21597 days (59.13 yr)  
   first obs. used      1960-10-17  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51527  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:34:23  

Additional Information
 Jupiter MOID = 2.5889 au 
 T_jup = 3.581 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.231304722721024E-15 -2.857508831284309E-15 1.740984011335619E-13 1.399093441865879E-14 1.547931524350565E-14 -2.795840172555191E-15
q -2.857508831284309E-15 6.689476808672688E-15 -4.370690230589665E-13 -3.25024291122814E-14 -5.114505710397417E-14 6.691425082186338E-15
tp 1.740984011335619E-13 -4.370690230589665E-13 1.598399937965389E-9 7.494681919672618E-12 4.993985470246805E-10 -2.455319558761147E-12
node 1.399093441865879E-14 -3.25024291122814E-14 7.494681919672618E-12 1.765409491850299E-9 -1.755645555480374E-9 -3.027536187723235E-13
peri 1.547931524350565E-14 -5.114505710397417E-14 4.993985470246805E-10 -1.755645555480374E-9 1.915458066941458E-9 -4.022761800437897E-13
i -2.795840172555191E-15 6.691425082186338E-15 -2.455319558761147E-12 -3.027536187723235E-13 -4.022761800437897E-13 1.346195380177955E-11

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 15.3   n/a MPO347725  

27101 Wenyucao           Discovered 1998 Nov. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Wenyu Cao (b. 1993) was a finalist in the 2010 Intel Science Talent Search, a science competition for high-school seniors, for his mathematical-sciences project. He attends the Phillips Academy, Andover, Massachusetts, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110319/MPCPages.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 1998 VK7 = 3548 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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