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10967 Billallen (4349 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2010967
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3101568558712338 5.344e-08  
a 2.771847463848335 1.353e-08 au
q 1.912139969506482 1.4716e-07 au
i 8.997412607792198 5.9576e-06 deg
node 158.3650646255198 2.847e-05 deg
peri 191.2999853921795 2.9456e-05 deg
M 152.3589643098152 6.8977e-06 deg
tp 2456887.124929245925
(2014-Aug-17.62492925)
3.0723e-05 JED
period 1685.591830023503
4.61
1.2342e-05
3.379e-08
d
yr
n .2135748367948486 1.5637e-09 deg/d
Q 3.631554958190188 1.7726e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1224  
   data-arc span      16442 days (45.02 yr)  
   first obs. used      1971-03-26  
   last obs. used      2016-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5223  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:10:23  

Additional Information
 Earth MOID = .905727 au 
 Jupiter MOID = 1.79396 au 
 T_jup = 3.248 
[ 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 13.8 mag n/a MPO332922  

10967 Billallen           Discovered 1971 Mar. 26 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
William H. Allen (b. 1939), an electrical engineer and amateur astronomer, erected his private observatory with a 0.32-m telescope in Rapaura, New Zealand. He has participated in photometric campaigns on cataclysmic variables, notably \eta Carinae, as well as on stellar occultations by minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

[ show close-approach data ]
Alternate Designations
 4349 T-1 = 1977 RJ8 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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