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JPL Small-Body Database Browser
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127005 Pratchett (2002 GY1)
Classification: Main-belt Asteroid          SPK-ID: 2127005
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2040530301813645 4.6011e-08  
a 2.359122311689846 1.6182e-08 au
q 1.877736255421067 1.0739e-07 au
i 7.278863939239338 4.8918e-06 deg
node 128.2748788609022 4.2885e-05 deg
peri 143.5985079578291 4.564e-05 deg
M 182.1257198920089 2.1734e-05 deg
tp 2459254.435280363070
(2021-Feb-08.93528036)
8.533e-05 TDB
period 1323.500512765414
3.62
1.3618e-05
3.728e-08
d
yr
n .2720059391951356 2.7987e-09 deg/d
Q 2.840508367958625 1.9484e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      7112 days (19.47 yr)  
   first obs. used      1999-07-14  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56495  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:07:04  

Additional Information
 Earth MOID = .866665 au 
 Jupiter MOID = 2.29327 au 
 T_jup = 3.513 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO412832  
diameter diameter 1.224 km 0.275 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.390   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

127005 Pratchett           Discovered 2002 Apr. 1 by J. Dellinger and W. G. Dillon at Needville.
Terence David John ("Terry") Pratchett (b. 1948) is a popular English author known for his richly detailed and allegorical "Discworld" series of satirical fantasy novels.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091202/MPCPages.arcLast Updated: 2010-04-12

[ show close-approach data ]
Alternate Designations
 2002 GY1 = 1999 NV29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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