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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1284955810689102 4.005e-08  
a 2.418056863083912 9.913e-09 au
q 2.107347241404278 9.4955e-08 au
i 11.78801591285946 4.0473e-06 deg
node 182.5148879242929 1.7401e-05 deg
peri 177.2399193737664 2.3191e-05 deg
M 211.324761354785 1.7829e-05 deg
tp 2459567.697534869591
(2021-Dec-19.19753487)
6.9812e-05 TDB
period 1373.403630716987
3.76
8.4456e-06
2.312e-08
d
yr
n .2621225049565812 1.6119e-09 deg/d
Q 2.728766484763545 1.1187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1918  
   data-arc span      18002 days (49.29 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45897  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:51:41  

Additional Information
 Earth MOID = 1.10425 au 
 Jupiter MOID = 2.72825 au 
 T_jup = 3.475 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO324426  
diameter diameter 6.465 km 0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.111   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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Alternate Designations
 2168 T-1 = 1980 TT10 = 1991 RY 
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