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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01738185788518718 1.8614e-07  
a 2.975027727217729 4.7466e-08 au
q 2.923316218058738 5.8609e-07 au
i 10.06548919613558 2.0815e-05 deg
node 150.2185040222374 9.0581e-05 deg
peri 109.0286663065475 0.0012202 deg
M 14.18848996452087 0.0012319 deg
tp 2457526.629909684038
(2016-May-18.12990968)
0.0064127 JED
period 1874.282082183823
5.13
4.4856e-05
1.228e-07
d
yr
n .1920735429431974 4.5967e-09 deg/d
Q 3.026739236376719 4.8291e-08 au
  Orbit Determination Parameters
   # obs. used (total)      221  
   data-arc span      7354 days (20.13 yr)  
   first obs. used      1995-04-25  
   last obs. used      2015-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .66546  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 15:26:46  

Additional Information
 Earth MOID = 1.92357 au 
 Jupiter MOID = 1.99391 au 
 T_jup = 3.238 
[ 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 15.4 mag n/a MPO338368  

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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