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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3108352741084548 5.5757e-08  
a 2.769881586534256 1.3897e-08 au
q 1.908904684335919 1.5416e-07 au
i 8.998480437478197 6.2527e-06 deg
node 158.3640496925937 3.0989e-05 deg
peri 191.2017460030955 3.2122e-05 deg
M 109.7275935991364 7.0261e-06 deg
tp 2456887.279984027592
(2014-Aug-17.77998403)
3.2126e-05 JED
period 1683.798939627169
4.61
1.2672e-05
3.469e-08
d
yr
n .2138022489072907 1.6091e-09 deg/d
Q 3.630858488732593 1.8217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1082  
   data-arc span      16337 days (44.73 yr)  
   first obs. used      1971-03-26  
   last obs. used      2015-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52661  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:16:07  

Additional Information
 Earth MOID = .901425 au 
 Jupiter MOID = 1.79425 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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