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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2133586405552669 5.5709e-08  
a 3.044611099473591 2.4947e-08 AU
q 2.395017014270429 1.6911e-07 AU
i 7.490891644945921 6.5265e-06 deg
node 175.8880049312572 4.7892e-05 deg
peri 282.0421826934599 5.0437e-05 deg
M 36.51089321887519 1.4847e-05 deg
tp 2456603.704065003371
(2013-Nov-07.20406500)
7.9321e-05 JED
period 1940.42189475005
5.31
2.3849e-05
6.53e-08
d
yr
n .1855266635436374 2.2802e-09 deg/d
Q 3.694205184676754 3.0269e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      622  
   data-arc span      6451 days (17.66 yr)  
   first obs. used      1996-09-12  
   last obs. used      2014-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58926  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:22:43  

Additional Information
 Earth MOID = 1.42489 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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