Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201389328104617 8.3813e-08  
a 2.640027879458811 1.7457e-08 AU
q 2.322857747430763 2.1792e-07 AU
i 12.57446034765562 1.0191e-05 deg
node 352.924499326858 2.2747e-05 deg
peri 228.6719874900689 4.2935e-05 deg
M 308.9932343565372 3.4444e-05 deg
tp 2457222.491569393741
(2015-Jul-18.99156939)
0.00014918 JED
period 1566.791463320106
4.29
1.554e-05
4.255e-08
d
yr
n .2297689312380748 2.2789e-09 deg/d
Q 2.957198011486859 1.9554e-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 = 1.33868 AU 
 T_jup = 3.351 
[ 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-July); 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., in press.]

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Aug-04 11:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin