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11911 Angel (1992 LF)
Classification: Main-belt Asteroid          SPK-ID: 2011911
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1574291903279154 4.8296e-08  
a 3.195031225662652 2.3865e-08 au
q 2.692040046734174 1.5471e-07 au
i 20.15845204954184 6.0748e-06 deg
node 152.2792335366741 1.2699e-05 deg
peri 221.5380842111403 2.003e-05 deg
M 153.6855444702155 1.6403e-05 deg
tp 2457709.984246649355
(2016-Nov-17.48424665)
9.2582e-05 TDB
period 2085.984549238865
5.71
2.3371e-05
6.399e-08
d
yr
n .1725803770365207 1.9336e-09 deg/d
Q 3.69802240459113 2.7622e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1801  
   data-arc span      17787 days (48.70 yr)  
   first obs. used      1970-08-28  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44406  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:58:26  

Additional Information
 Earth MOID = 1.71897 au 
 Jupiter MOID = 1.82702 au 
 T_jup = 3.081 
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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 11.8   n/a MPO384862  
diameter diameter 27.233 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.054   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

11911 Angel           Discovered 1992 June 4 by C. S. Shoemaker and D. H. Levy at Palomar.
Founder and director of Steward Observatory's mirror lab at the University of Arizona, Tucson, Roger Angel (b. 1941) has spearheaded the development of telescope mirrors as large as eight meters in diameter by a process called spin-casting. His work and ideas have resulted in an enormous increase in telescope light-gathering power.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1992 LF = 1970 QC = 1993 PF9 
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