Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
12716 Delft (1991 GD8)
Classification: Main-belt Asteroid          SPK-ID: 2012716
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03940803666891129 8.8341e-08  
a 3.05591498979605 4.7931e-08 AU
q 2.935487379821092 2.6459e-07 AU
i 9.287509065243169 1.165e-05 deg
node 218.5646950496371 5.4246e-05 deg
peri 215.4403550586049 0.00016293 deg
M 172.968139291087 0.00015304 deg
tp 2455462.994244202066
(2010-Sep-23.49424420)		 0.00082985 JED
period 1951.238381071303
5.34		 4.5907e-05
1.257e-07		 d
yr
n .1844982158470799 4.3407e-09 deg/d
Q 3.176342599771008 4.982e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      8050 days (22.04 yr)  
   first obs. used      1991-04-08  
   last obs. used      2013-04-22  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .53371  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 13:49:40  

Additional Information
 Earth MOID = 1.95333 AU 
 T_jup = 3.214 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a PDS3 (MPC 37042)  

12716 Delft           Discovered 1991 Apr. 8 by E. W. Elst at the European Southern Observatory.
Delft, a city dating from 1246 in the southern part of The Netherlands, is famous for its blue pottery, its typical Dutch canal system and its highly esteemed University of Technology.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080819/MPCPages.arcLast Updated: 2008-08-25

Alternate Designations
 1991 GD8 = 1998 QC69 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2013-May-21 19:09 UT
(server date/time)   		NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster:   Alan B. Chamberlin