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4515 Khrennikov (1973 SD6)
Classification: Main-belt Asteroid          SPK-ID: 2004515
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1544854605671217 1.0216e-08  
a 2.41320889436662 6.6091e-09 au
q 2.040403206875718 2.3483e-08 au
i 1.960995484662765 8.6259e-07 deg
node 337.818250180435 8.565e-06 deg
peri 102.7327987125699 1.1487e-05 deg
M 150.5356878889501 7.4484e-06 deg
tp 2458627.931075433602
(2019-May-24.43107543)
2.7648e-05 TDB
period 1369.275390669892
3.75
5.6251e-06
1.54e-08
d
yr
n .2629127803311185 1.0801e-09 deg/d
Q 2.786014581857522 7.6301e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2454  
   data-arc span      24525 days (67.15 yr)  
   first obs. used      1953-05-18  
   last obs. used      2020-07-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47596  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:27:01  

Additional Information
 Earth MOID = 1.05683 au 
 Jupiter MOID = 2.4388 au 
 T_jup = 3.501 
[ 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 13.69   n/a E2021B10  
diameter diameter 5.256 km 0.301 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.08011 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 0.279   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4515 Khrennikov           Discovered 1973 Sept. 28 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Named in honor of well-known Soviet composer Tikhon Nikolaevich Khrennikov (b. 1913), who wrote many operas, operettas, ballets, symphony scores, and music for theater and films. He is a professor at the Moscow Conservatory and led the Union of Soviet Composers for many years.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1973 SD6 = 1962 WU = 1971 DQ = 1986 EP = 1990 EM8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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