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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03926918799589529 6.9657e-08  
a 3.055328885642775 3.9647e-08 AU
q 2.93534860124318 2.2173e-07 AU
i 9.287094200103816 8.898e-06 deg
node 218.5426792011685 4.7021e-05 deg
peri 216.0394569136602 0.00013658 deg
M 283.0586320642357 0.0001324 deg
tp 2457417.410447511260
(2016-Jan-29.91044751)
0.00071997 JED
period 1950.677056188508
5.34
3.7969e-05
1.04e-07
d
yr
n .1845513068695317 3.5922e-09 deg/d
Q 3.175309170042371 4.1204e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      683  
   data-arc span      8521 days (23.33 yr)  
   first obs. used      1991-04-08  
   last obs. used      2014-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52356  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:21:04  

Additional Information
 Earth MOID = 1.95379 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 ]
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