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27988 Menabrea (1997 VA4)
Classification: Main-belt Asteroid          SPK-ID: 2027988
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2122083848073244 3.7995e-08  
a 3.045455641353786 1.6176e-08 au
q 2.399184418699745 1.1779e-07 au
i 7.490850199067618 4.469e-06 deg
node 175.8693836411993 3.3792e-05 deg
peri 281.8277895159245 3.5336e-05 deg
M 10.71455607485036 9.9732e-06 deg
tp 2458542.723859737563
(2019-Feb-28.22385974)
5.368e-05 TDB
period 1941.229328511188
5.31
1.5467e-05
4.235e-08
d
yr
n .1854494956946171 1.4776e-09 deg/d
Q 3.691726864007827 1.9609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      967  
   data-arc span      8213 days (22.49 yr)  
   first obs. used      1996-09-12  
   last obs. used      2019-03-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54874  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:06:35  

Additional Information
 Earth MOID = 1.42966 au 
 Jupiter MOID = 1.58148 au 
 T_jup = 3.191 
[ 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 14.5   n/a MPO250480  

27988 Menabrea           Discovered 1997 Nov. 7 by P. G. Comba at Prescott.
Luigi Federico Menabrea (1809-1896), Piedmontese mathematician and statesman, is best remembered for an article he wrote based on a lecture given in Turin by Charles Babbage. Amplified by Ada Lovelace, this lecture was one of the earliest and clearest conceptualizations of a general-purpose computing engine.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1997 VA4 = 1996 TN52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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