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27988 Menabrea (1997 VA4)
Classification: Main-belt Asteroid          SPK-ID: 2027988
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2131696871690856 5.0781e-08  
a 3.043444055705281 2.4048e-08 AU
q 2.394674038433974 1.5164e-07 AU
i 7.492232364244864 6.0289e-06 deg
node 175.8866049642373 4.4088e-05 deg
peri 281.9669191845564 4.6338e-05 deg
M 73.71136248615954 1.4568e-05 deg
tp 2456603.419692604608
(2013-Nov-06.91969260)
7.6728e-05 JED
period 1939.306313720387
5.31
2.2985e-05
6.293e-08
d
yr
n .1856333872854629 2.2002e-09 deg/d
Q 3.692214072976589 2.9174e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      6830 days (18.70 yr)  
   first obs. used      1996-09-12  
   last obs. used      2015-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58421  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:56:46  

Additional Information
 Earth MOID = 1.42486 AU 
 T_jup = 3.191 
[ 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 14.5 mag 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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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