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5155 Denisyuk (1972 HR)
Classification: Main-belt Asteroid          SPK-ID: 2005155
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1353790270009719 2.4279e-08  
a 3.120566108911258 1.3855e-08 au
q 2.698106905394643 7.8681e-08 au
i 6.11959601952488 9.5185e-07 deg
node 60.57357755145352 2.0947e-05 deg
peri 237.1642721834389 1.61e-05 deg
M 280.5339912003163 9.3802e-06 deg
tp 2459840.954603038370
(2022-Sep-18.45460304)
5.3367e-05 TDB
period 2013.485507962873
5.51
1.341e-05
3.671e-08
d
yr
n .1787944331241931 1.1908e-09 deg/d
Q 3.543025312427873 1.5731e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3079  
   data-arc span      21489 days (58.83 yr)  
   first obs. used      1962-08-27  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45649  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 23:42:00  

Additional Information
 Earth MOID = 1.68817 au 
 Jupiter MOID = 1.67169 au 
 T_jup = 3.193 
[ 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 12.44   n/a MPCxxxxx  
diameter diameter 15.350 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 31.5617 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.121   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5155 Denisyuk           Discovered 1972 Apr. 18 by T. M. Smirnova at the Crimean Astrophysical Observatory.
Named in honor of academician Yurij Nikolaevich Denisyuk (b. 1927), head of a laboratory at the Ioffe Physical and Technical Institute in St. Petersburg and a member of the Royal Photographic Society, known worldwide for his discoveries in holography. Name suggested by the Institute of Applied Astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981005/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1972 HR = 1962 QA = 1968 UL2 = 1988 GW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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