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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1226182813232271 9.0774e-09  
a 2.249012405631533 4.6875e-09 au
q 1.973242369778378 2.0197e-08 au
i 5.076329038924354 2.1278e-07 deg
node 258.5474481919607 6.9621e-06 deg
peri 337.0982031384676 9.0618e-06 deg
M 229.7717988133764 5.1232e-06 deg
tp 2459646.144698512729
(2022-Mar-07.64469851)
1.8088e-05 TDB
period 1231.930488194911
3.37
3.8515e-06
1.054e-08
d
yr
n .2922242800626607 9.1361e-10 deg/d
Q 2.524782441484688 5.2623e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3234  
   data-arc span      41628 days (113.97 yr)  
   first obs. used      1907-04-04  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41237  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:25:26  

Additional Information
 Earth MOID = .961087 au 
 Jupiter MOID = 2.4804 au 
 T_jup = 3.613 
[ 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 11.89   n/a E2021B10  
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. 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:
[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

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 ]
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