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JPL Small-Body Database Browser
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1365 Henyey (1928 RK)
Classification: Main-belt Asteroid          SPK-ID: 2001365
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230385263977993 3.0832e-08  
a 2.248644269934384 5.4128e-09 au
q 1.971974392568802 6.9408e-08 au
i 5.076883576917453 3.3438e-06 deg
node 258.5454888982459 4.474e-05 deg
peri 337.1332703312007 4.757e-05 deg
M 54.34770468341473 1.6756e-05 deg
tp 2458414.566233166471
(2018-Oct-23.06623317)
5.7198e-05 TDB
period 1231.628022746974
3.37
4.4471e-06
1.218e-08
d
yr
n .2922960450323875 1.0554e-09 deg/d
Q 2.525314147299966 6.0788e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2740  
   data-arc span      41145 days (112.65 yr)  
   first obs. used      1907-04-04  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43205  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:21:04  

Additional Information
 Earth MOID = .961122 au 
 Jupiter MOID = 2.48152 au 
 T_jup = 3.614 
[ show covariance matrix ]

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 MPO435709  
diameter diameter 10.958 km 0.369 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 18.986 h n/a LCDB (Rev. 2019-January); 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:
[Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Turk, J.; et al. (2013) Minor Planet Bull. 40, 65-67.]
geometric albedo albedo 0.280   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1365 Henyey (1928 RK)          Discovered 1928-Sep-09 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1928 RK = 1932 WL = 1941 ME = 1973 YG4 = 1984 BA = A907 GK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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