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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 ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230385280998311 3.0629e-08  
a 2.248644269657855 5.3791e-09 au
q 1.971974388499032 6.889e-08 au
i 5.076884159013798 3.303e-06 deg
node 258.5454911412044 4.4695e-05 deg
peri 337.1332685089072 4.7521e-05 deg
M 54.34770454545583 1.6755e-05 deg
tp 2458414.566233672752
(2018-Oct-23.06623367)		 5.7191e-05 TDB
period 1231.628022519783
3.37		 4.4193e-06
1.21e-08		 d
yr
n .2922960450863056 1.0488e-09 deg/d
Q 2.525314150816677 6.0409e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2765  
   data-arc span      41155 days (112.68 yr)  
   first obs. used      1907-04-04  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43091  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:58:37  

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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