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18727 Peacock (1998 KW3)
Classification: Main-belt Asteroid          SPK-ID: 2018727
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO257001 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.1091001 n/a  
a 3.1375365 n/a AU
q 2.7952310 n/a AU
i 5.35496 n/a deg
node 179.60883 n/a deg
peri 73.65577 n/a deg
M 227.22423 n/a deg
tp 2457149.1829121
(2015-May-06.68291210)
n/a JED
period 2029.9324822
5.56
n/a
n/a
d
yr
n 0.17734580 n/a deg/d
Q 3.4798420 n/a AU
  Orbit Determination Parameters
   # obs. used (total)      692  
   first obs. used      1990-??-??  
   last obs. used      2013-03-08  
   # oppositions      15  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.52  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.195 

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a PDS3 (MPO 5277)  

18727 Peacock           Discovered 1998 May 22 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Anthony Peacock (b. 1950) was project scientist for the ESA Exosat and XMM-Newton missions. A leading expert on detectors for use in high-energy astrophysics, he has also developed the S-CAM, a cryogenic camera having an ultrafast photon-counting detector, for groundbased optical astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070926/MPCPages.arcLast Updated: 2007-09-30

Alternate Designations
 1998 KW3 = 1994 TW4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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