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12716 Delft (1991 GD8)
Classification: Main-belt Asteroid          SPK-ID: 2012716
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03926919442067776 6.5614e-08  
a 3.055328888883214 3.7738e-08 AU
q 2.935348584726546 2.1352e-07 AU
i 9.287097902642433 8.364e-06 deg
node 218.5426862785142 4.6672e-05 deg
peri 216.0394484567631 0.0001364 deg
M 283.0586323888339 0.00013237 deg
tp 2457417.410446415664
(2016-Jan-29.91044642)
0.00071975 JED
period 1950.677059291799
5.34
3.6141e-05
9.895e-08
d
yr
n .1845513065759329 3.4193e-09 deg/d
Q 3.175309193039882 3.922e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      712  
   data-arc span      8601 days (23.55 yr)  
   first obs. used      1991-04-08  
   last obs. used      2014-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52236  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:18:03  

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 13.6 mag n/a MPO309251  

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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