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18845 Cichocki (1999 RY27)
Classification: Main-belt Asteroid          SPK-ID: 2018845
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1199193415658192 8.3763e-08  
a 2.639240128124585 1.7327e-08 au
q 2.322744189725797 2.1762e-07 au
i 12.57583153120195 1.0192e-05 deg
node 352.9232335586551 2.2744e-05 deg
peri 228.8124564485373 4.3054e-05 deg
M 40.80660916537128 3.4285e-05 deg
tp 2457222.981020237937
(2015-Jul-19.48102024)
0.00014973 JED
period 1566.090249139696
4.29
1.5422e-05
4.222e-08
d
yr
n .2298718098767039 2.2637e-09 deg/d
Q 2.955736066523374 1.9404e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1140  
   data-arc span      10079 days (27.59 yr)  
   first obs. used      1987-11-14  
   last obs. used      2015-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .44461  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:23:52  

Additional Information
 Earth MOID = 1.33679 au 
 Jupiter MOID = 2.08082 au 
 T_jup = 3.352 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO337417  
rotation period rot_per 85.6157 h n/a LCDB (Rev. 2015-December); 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.]

18845 Cichocki           Discovered 1999 Sept. 7 by H. Mikuž at Črni Vrh Observatory.
Bruno Cichocki (1908-2001) was a civil engineer with a vivid interest in astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

Alternate Designations
 1999 RY27 = 1987 VN = 1998 FU114 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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