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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03926918591815756 6.886e-08  
a 3.055328884513636 3.9264e-08 AU
q 2.935348606506553 2.201e-07 AU
i 9.287095083122709 8.7793e-06 deg
node 218.5426800677285 4.6997e-05 deg
peri 216.0394556869215 0.00013656 deg
M 283.0586328590057 0.00013239 deg
tp 2457417.410442973648
(2016-Jan-29.91044297)
0.00071993 JED
period 1950.677055107158
5.34
3.7603e-05
1.03e-07
d
yr
n .1845513069718369 3.5575e-09 deg/d
Q 3.175309162520719 4.0806e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      688  
   data-arc span      8547 days (23.40 yr)  
   first obs. used      1991-04-08  
   last obs. used      2014-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52333  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:00:39  

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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