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JPL Small-Body Database Browser
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7971 Meckbach (9002 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2007971
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1087627244123583 4.2977e-08  
a 2.574122287733872 1.181e-08 au
q 2.294153734749364 1.0896e-07 au
i 14.01539247982206 4.7582e-06 deg
node 199.5644739544771 1.49e-05 deg
peri 10.90556270728499 2.3361e-05 deg
M 205.0397851859372 2.0352e-05 deg
tp 2459249.821671882226
(2021-Feb-04.32167188)
8.6695e-05 TDB
period 1508.489144507742
4.13
1.0381e-05
2.842e-08
d
yr
n .2386493806141886 1.6424e-09 deg/d
Q 2.854090840718381 1.3094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1738  
   data-arc span      21598 days (59.13 yr)  
   first obs. used      1960-10-17  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47336  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:34:02  

Additional Information
 Earth MOID = 1.2913 au 
 Jupiter MOID = 2.10799 au 
 T_jup = 3.378 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO458909  

7971 Meckbach           Discovered 1960 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named in memory of Wolfgang Meckbach (1919-1998), microwave spectroscopist who emigrated from Germany to Argentina in 1951, where he became the co-founder of the Centro Atómico Bariloche and founder of the Bariloche school of atomic collision physics. In spite of difficult times, he excelled as a teacher and researcher in atomic collision physics using ion penetration through matter. By sad coincidence, the name was proposed just as Meckbach suffered a fatal heart attack while skiing. Name proposed and citation prepared by K.-O. Groeneveld.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981208/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 9002 P-L = 1981 VD2 = 1992 HP4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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