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11757 Salpeter (2799 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2011757
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2421397015577296 7.9265e-08  
a 3.139876816680941 2.3209e-08 au
q 2.379587981361784 2.5259e-07 au
i 29.62426058669653 1.0275e-05 deg
node 185.7331663867962 1.2211e-05 deg
peri 162.6979618070454 2.0727e-05 deg
M 320.1817084949769 1.6583e-05 deg
tp 2459621.274718846580
(2022-Feb-10.77471885)
9.4796e-05 TDB
period 2032.204188734741
5.56
2.2532e-05
6.169e-08
d
yr
n .1771475533785498 1.9641e-09 deg/d
Q 3.900165652000098 2.8829e-08 au
  Orbit Determination Parameters
   # obs. used (total)      361  
   data-arc span      22155 days (60.66 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55633  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:47:42  

Additional Information
 Earth MOID = 1.38516 au 
 Jupiter MOID = 1.61402 au 
 T_jup = 2.968 
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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 15.06   n/a MPO614063  
diameter diameter 6.697 km 1.888 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.032   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

11757 Salpeter           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Edwin E. Salpeter (b. 1924), born in Austria, educated in Australia and the U.K., has been at Cornell University since 1948. A generalist, he worked with Hans Bethe in quantum electrodynamics and nuclear physics and is best known for the triple- \alpha helium-burning reaction and for the initial mass function of stars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08

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Alternate Designations
 2799 P-L = 5180 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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