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171153 Allanrahill (2005 GL81)
Classification: Main-belt Asteroid          SPK-ID: 2171153
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01749725795204857 2.073e-07  
a 2.977371614267205 5.2164e-08 AU
q 2.925275775113264 6.4887e-07 AU
i 10.06390776595126 2.1749e-05 deg
node 150.2170299816251 0.00010735 deg
peri 105.8975567164476 0.0011893 deg
M 262.08469826229 0.0011996 deg
tp 2457510.882832769583
(2016-May-02.38283277)
0.0062613 JED
period 1876.497508931101
5.14
4.9315e-05
1.35e-07
d
yr
n .1918467774599205 5.0418e-09 deg/d
Q 3.029467453421145 5.3077e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      7248 days (19.84 yr)  
   first obs. used      1995-04-25  
   last obs. used      2015-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .72519  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 20:54:50  

Additional Information
 Earth MOID = 1.92838 AU 
 T_jup = 3.237 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2 mag n/a MPO241227  

171153 Allanrahill           Discovered 2005 Apr. 10 by A. Lowe at RAS Observatory, Mayhill.
Allan Rahill (b. 1958) is a meteorologist at the Canadian Meteorological Centre, an amateur astronomer and accomplished optician. His astronomy forecast models feed the Clear Sky Charts, a primary planning tool for observers across North America.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091004/MPCPages.arcLast Updated: 2009-10-06

[ show close-approach data ]
Alternate Designations
 2005 GL81 = 2000 HQ35 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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