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4994 Kisala (1983 RK3)
Classification: Main-belt Asteroid          SPK-ID: 2004994
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1979371053443441 5.0342e-08  
a 2.906820656749796 1.0343e-08 au
q 2.331452990197596 1.444e-07 au
i 1.714656685278606 4.3203e-06 deg
node 31.33662287867555 0.00012562 deg
peri 5.287796949977329 0.00012635 deg
M 106.4984540531662 1.1265e-05 deg
tp 2458464.991231679214
(2018-Dec-12.49123168)
5.6619e-05 TDB
period 1810.19676115901
4.96
9.6615e-06
2.645e-08
d
yr
n .1988734085290837 1.0614e-09 deg/d
Q 3.482188323301996 1.239e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2022  
   data-arc span      20198 days (55.30 yr)  
   first obs. used      1965-01-01  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47888  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:15:01  

Additional Information
 Earth MOID = 1.33863 au 
 Jupiter MOID = 1.94888 au 
 T_jup = 3.255 
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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 13.6   n/a MPO458880  
diameter diameter 5.495 km 0.263 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 39.240 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.177   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4994 Kisala           Discovered 1983 Sept. 1 by H. Debehogne at the European Southern Observatory.
During mid-2004 Rachel Kisala (b. 1985) helped out at the Minor Planet Center and Central Bureau for Astronomical Telegrams by reducing (in more than one sense of the word) the backlog of SOHO comet observations. She also converted many old IAU Circulars to computer form.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040928/MPCPages.arcLast Updated: 2004-09-28

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Alternate Designations
 1983 RK3 = 1965 AE = 1989 YP6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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