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11765 Alfredfowler (9057 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2011765
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1098323426862802 2.2134e-08  
a 2.3319745590939 7.2472e-09 au
q 2.075848330183812 5.3298e-08 au
i 3.274503491332279 2.6391e-07 deg
node 312.4637889846553 9.6667e-06 deg
peri 272.0304518570114 9.9303e-06 deg
M 95.25494508528062 3.2601e-06 deg
tp 2458856.333045123807
(2020-Jan-07.83304512)		 1.1317e-05 TDB
period 1300.72096146298
3.56		 6.0635e-06
1.66e-08		 d
yr
n .2767695844580622 1.2902e-09 deg/d
Q 2.588100788003989 8.0432e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1991  
   data-arc span      21993 days (60.21 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-12-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49109  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:57:13  

Additional Information
 Earth MOID = 1.06862 au 
 Jupiter MOID = 2.40135 au 
 T_jup = 3.560 
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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 14.35   n/a E2021B10  
diameter diameter 3.821 km 0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.175   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11765 Alfredfowler           Discovered 1960 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Alfred Fowler (1868-1940) was a British astrophysicist who measured spectral lines in the laboratory, the earth's atmosphere, comets and stars. He was the first general secretary of the International Astronomical Union.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

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Alternate Designations
 9057 P-L = 1978 UG6 
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