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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1282189580973153 4.1289e-08  
a 2.4186836358169 1.103e-08 au
q 2.108562540065431 9.7051e-08 au
i 11.78611940787626 4.0449e-06 deg
node 182.519417151805 2.0199e-05 deg
peri 177.3058558119379 2.605e-05 deg
M 106.4175361072985 1.7884e-05 deg
tp 2458194.358166576516
6.7394e-05 TDB
period 1373.937655209692
n .2620206227225473 1.7924e-09 deg/d
Q 2.728804731568369 1.2445e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1685  
   data-arc span      17790 days (48.71 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47224  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:26:30  

Additional Information
 Earth MOID = 1.1046 au 
 Jupiter MOID = 2.72467 au 
 T_jup = 3.475 
[ show covariance matrix ]

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] (  
geometric albedo albedo 0.111   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2172-Mar-23 17:28 < 00:01 Iris 0.0464794093383034 0.046456850825998 0.0465019700775986 5.66412036471836 5.66412034288201 2514449.227624981 0.960461697770151 1233.86734309969 31.1772974717349 -24.2929484232897 91867.5122073603 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 23:26:44 2019-Dec-13 23:26

Alternate Designations
 2168 T-1 = 1980 TT10 = 1991 RY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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