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12629 Jandeboer (2168 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2012629
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1275352943679592 6.2238e-08  
a 2.418449077662953 1.6582e-08 AU
q 2.110011462629289 1.5275e-07 AU
i 11.77886811950695 6.9973e-06 deg
node 182.5543773804085 2.7827e-05 deg
peri 176.5931759268303 3.6623e-05 deg
M 48.02978074658776 2.3414e-05 deg
tp 2456817.221318737788
(2014-Jun-08.72131874)
8.9084e-05 JED
period 1373.737798273913
3.76
1.4129e-05
3.868e-08
d
yr
n .2620587425433996 2.6953e-09 deg/d
Q 2.726886692696617 1.8697e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      883  
   data-arc span      15900 days (43.53 yr)  
   first obs. used      1971-03-24  
   last obs. used      2014-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5101  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:23:15  

Additional Information
 Earth MOID = 1.10697 AU 
 T_jup = 3.475 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a PDS3 (MPC 36777)  

12629 Jandeboer           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Jan Allard de Boer (b. 1943) has been secretary of the Royal Dutch amateur society for meteorology and astronomy (NVWS) since 1995. He has done much to initiate contact between amateurs and professionals. Name suggested by A. v. d. Brugge and H. van Woerden.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20121228/MPCPages.arcLast Updated: 2013-01-02

[ show close-approach data ]
Alternate Designations
 2168 T-1 = 1980 TT10 = 1991 RY 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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