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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3112874446774272 5.9528e-08  
a 2.76945126476497 2.2388e-08 AU
q 1.907355857397614 1.6847e-07 AU
i 8.997838630475853 6.8669e-06 deg
node 158.3665767005525 3.8242e-05 deg
peri 191.1250831829699 3.9542e-05 deg
M 341.4475141392077 1.3478e-05 deg
tp 2456887.253823792203
(2014-Aug-17.75382379)
6.3746e-05 JED
period 1683.406568776605
4.61
2.0413e-05
5.589e-08
d
yr
n .2138520822463141 2.5932e-09 deg/d
Q 3.631546672132327 2.9357e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      802  
   data-arc span      15802 days (43.26 yr)  
   first obs. used      1971-03-26  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52528  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:25:15  

Additional Information
 Earth MOID = .900483 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 13.7 mag n/a MPO267751  

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

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