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JPL Small-Body Database Browser
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2181 Fogelin (1942 YA)
Classification: Main-belt Asteroid          SPK-ID: 2002181
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1197653550126229 4.4539e-08  
a 2.591618841844611 1.1258e-08 au
q 2.281232691193689 1.1727e-07 au
i 12.99832011851836 5.5673e-06 deg
node 17.14661326493213 2.1068e-05 deg
peri 116.8462966316944 3.1342e-05 deg
M 182.5822992354641 2.2283e-05 deg
tp 2459751.516650931397
9.4956e-05 TDB
period 1523.895266200782
n .2362367073280009 1.5393e-09 deg/d
Q 2.902004992495534 1.2606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2000  
   data-arc span      28242 days (77.32 yr)  
   first obs. used      1942-12-28  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:36:07  

Additional Information
 Earth MOID = 1.32523 au 
 Jupiter MOID = 2.164 au 
 T_jup = 3.373 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0   n/a MPO384769  
diameter diameter 10.067 km 0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 14.07 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Durkee, R.I. (2010) Minor Planet Bull. 37, 125-127.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.252   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

2181 Fogelin           Discovered 1942 Dec. 28 by K. Reinmuth at Heidelberg.
Named in honor of Eric S. Fogelin, an assistant at the Minor Planet Center during 1979-1980 who has helped extensively in the production of the Minor Planet Circulars and in the preparation of computerized data relevant to the Minor Planet Center. Name proposed by C. M. Bardwell and B. G. Marsden.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5451Last Updated: 2006-03-21

Alternate Designations
 1942 YA = 1952 HC2 = 1975 VF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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