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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03932414671110736 7.7361e-08  
a 3.055783344122943 4.3182e-08 AU
q 2.935617271581294 2.3805e-07 AU
i 9.286465854795583 9.775e-06 deg
node 218.550308842496 4.7062e-05 deg
peri 215.8096349892676 0.00013647 deg
M 246.3835933423616 0.00013192 deg
tp 2457416.273244734500
(2016-Jan-28.77324473)
0.0007188 JED
period 1951.11229641689
5.34
4.1358e-05
1.132e-07
d
yr
n .1845101384790205 3.9111e-09 deg/d
Q 3.175949416664592 4.488e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      665  
   data-arc span      8478 days (23.21 yr)  
   first obs. used      1991-04-08  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52057  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:29:00  

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 ]
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