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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03926918494764855 6.4922e-08  
a 3.05532888339732 3.736e-08 AU
q 2.935348608399298 2.1218e-07 AU
i 9.287097111957127 8.2747e-06 deg
node 218.5426833986529 4.647e-05 deg
peri 216.0394488722835 0.00013633 deg
M 283.0586367694806 0.0001323 deg
tp 2457417.410421556067
(2016-Jan-29.91042156)
0.00071939 JED
period 1950.677054038089
5.34
3.5778e-05
9.795e-08
d
yr
n .1845513070729803 3.385e-09 deg/d
Q 3.175309158395342 3.8827e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      737  
   data-arc span      8632 days (23.63 yr)  
   first obs. used      1991-04-08  
   last obs. used      2014-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .518  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:17:06  

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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