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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1981349367521298 4.7024e-08  
a 2.906215829677741 1.0109e-08 au
q 2.330392940076504 1.352e-07 au
i 1.714848792281704 4.2851e-06 deg
node 31.33250974609795 0.00012032 deg
peri 5.249750800279045 0.00012092 deg
M 146.3171324033489 1.0378e-05 deg
tp 2458464.999617206995
(2018-Dec-12.49961721)
5.1745e-05 TDB
period 1809.631814513483
4.95
9.4417e-06
2.585e-08
d
yr
n .198935494564559 1.0379e-09 deg/d
Q 3.482038719278978 1.2112e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2087  
   data-arc span      20534 days (56.22 yr)  
   first obs. used      1965-01-01  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47981  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:59:37  

Additional Information
 Earth MOID = 1.33648 au 
 Jupiter MOID = 1.95025 au 
 T_jup = 3.255 
[ 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 13.61   n/a E2021B10  
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. 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:
[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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