Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2042261150386092 4.0271e-08  
a 2.358466568917063 1.3352e-08 au
q 1.876806104098693 9.7242e-08 au
i 7.27995341737854 4.6722e-06 deg
node 128.274471205107 3.6665e-05 deg
peri 143.7025592299487 4.0037e-05 deg
M 345.2633066706279 2.1574e-05 deg
tp 2459254.655249228740
(2021-Feb-09.15524923)
7.9649e-05 TDB
period 1322.948729854376
3.62
1.1234e-05
3.076e-08
d
yr
n .2721193889650033 2.3107e-09 deg/d
Q 2.840127033735433 1.6078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      7616 days (20.85 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55915  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:08:18  

Additional Information
 Earth MOID = .864389 au 
 Jupiter MOID = 2.29402 au 
 T_jup = 3.514 
[ 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 16.45   n/a E2021B55  
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-07 09:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin