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13977 Frisch (1992 HJ7)
Classification: Main-belt Asteroid          SPK-ID: 2013977
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1914733277078446 4.383e-08  
a 2.474307722408832 1.4811e-08 AU
q 2.000543789025995 1.0815e-07 AU
i 15.70453956772479 6.6708e-06 deg
node 193.9210886472464 1.6794e-05 deg
peri 133.5283967226427 2.7234e-05 deg
M 170.3187551402236 2.5203e-05 deg
tp 2456327.927716560366
(2013-Feb-04.42771656)
9.5677e-05 JED
period 1421.605165202891
3.89
1.2765e-05
3.495e-08
d
yr
n .2532348705617011 2.2738e-09 deg/d
Q 2.94807165579167 1.7647e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1249  
   data-arc span      30483 days (83.46 yr)  
   first obs. used      1931-10-10  
   last obs. used      2015-03-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50362  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:48:22  

Additional Information
 Earth MOID = 1.02325 AU 
 T_jup = 3.406 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.3 mag n/a MPO250350  
rotation period rot_per 4.9991 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
[Higgins, D.J. (2012) http://www.david-higgins.com/Astronomy/astero id/lightcurves.htm]

13977 Frisch           Discovered 1992 Apr. 29 by F. Borngen at Tautenburg.
Austrian zoologist Karl Ritter von Frisch (1886-1982) did fundamental investigations on fish and honey-bees. He studied the orientation of bees following colors, shapes, odors, the sun and polarized light. He received the 1973 Nobel prize for medicine.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000726/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1992 HJ7 = 1931 TZ2 = 1935 US = 1973 GL = 1988 BA5 = 1988 JY1 = 1989 NK = 1996 GP21 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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