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3474 Linsley (1962 HE)
Classification: Main-belt Asteroid          SPK-ID: 2003474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .208175092737021 2.6025e-08  
a 2.555787728070651 7.6044e-09 au
q 2.023736380763403 6.4085e-08 au
i 5.99083777730814 5.3928e-06 deg
node 169.0212836948106 2.8972e-05 deg
peri 108.4496739291126 3.2769e-05 deg
M 77.94774459533409 1.482e-05 deg
tp 2458877.363028548737
(2020-Jan-28.86302855)
6.1169e-05 TDB
period 1492.401227596497
4.09
6.6607e-06
1.824e-08
d
yr
n .2412219940208557 1.0766e-09 deg/d
Q 3.087839075377899 9.1875e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2562  
   data-arc span      21449 days (58.72 yr)  
   first obs. used      1962-04-27  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42368  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:10:53  

Additional Information
 Earth MOID = 1.01535 au 
 Jupiter MOID = 2.07968 au 
 T_jup = 3.399 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO473813  
diameter diameter 8.080 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.22 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.171   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Sa   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3474 Linsley (1962 HE)          Discovered 1962-Apr-27 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1962 HE = 1962 JC = 1971 TG2 = 1979 QR6 = 1979 SK6 = 1986 CT1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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