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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1278636320915534 8.9568e-08  
a 2.418996408055931 1.9716e-08 AU
q 2.109694741305479 2.1641e-07 AU
i 11.77798491482349 9.733e-06 deg
node 182.5653262632943 3.1583e-05 deg
peri 176.5764443811456 4.1261e-05 deg
M 250.8474145820666 2.5801e-05 deg
tp 2456817.160939047644
(2014-Jun-08.66093905)		 9.9172e-05 JED
period 1374.204170087459
3.76		 1.6801e-05
4.6e-08		 d
yr
n .2619698061148282 3.2028e-09 deg/d
Q 2.728298074806384 2.2237e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      786  
   data-arc span      15370 days (42.08 yr)  
   first obs. used      1971-03-24  
   last obs. used      2013-04-22  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .53233  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 13:49:21  

Additional Information
 Earth MOID = 1.10599 AU 
 T_jup = 3.475 
[ 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 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

Alternate Designations
 2168 T-1 = 1980 TT10 = 1991 RY 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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