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2803 Vilho (1940 WG)
Classification: Main-belt Asteroid          SPK-ID: 2002803
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1783703864830576 4.7823e-08  
a 3.14270473935021 2.2845e-08 AU
q 2.582139280390176 1.5152e-07 AU
i 1.330527617161933 5.8034e-06 deg
node 20.82528443830883 0.00024492 deg
peri 43.57913215859824 0.00024548 deg
M 77.18108247767998 1.7379e-05 deg
tp 2456564.223156666515
(2013-Sep-28.72315667)
9.7912e-05 JED
period 2034.95025669632
5.57
2.2189e-05
6.075e-08
d
yr
n .1769085012350371 1.929e-09 deg/d
Q 3.703270198310244 2.692e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1250  
   data-arc span      31079 days (85.09 yr)  
   first obs. used      1929-11-27  
   last obs. used      2014-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50956  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-07 23:59:05  

Additional Information
 Earth MOID = 1.59539 AU 
 T_jup = 3.185 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.8 mag n/a PDS3 (MPC 17266)  

2803 Vilho (1940 WG)          Discovered 1940-Nov-29 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1940 WG = 1929 XM = 1962 VE = 1973 SD5 = 1976 GF5 = 1977 KC1 = 1978 ND5 = 1979 SZ11 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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