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23120 Paulallen (2000 AP50)
Classification: Main-belt Asteroid          SPK-ID: 2023120
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2131599757452561 7.0111e-08  
a 2.621159217448672 1.6528e-08 au
q 2.062432982232858 1.8579e-07 au
i 12.42388437267382 7.135e-06 deg
node 292.5169948392765 3.057e-05 deg
peri 69.80978159565903 3.5596e-05 deg
M 15.05145474922702 1.4675e-05 deg
tp 2457335.694105923939
(2015-Nov-09.19410592)
6.3262e-05 JED
period 1550.024383429125
4.24
1.4661e-05
4.014e-08
d
yr
n .2322544108651831 2.1968e-09 deg/d
Q 3.179885452664485 2.0051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1095  
   data-arc span      15332 days (41.98 yr)  
   first obs. used      1973-12-20  
   last obs. used      2015-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46403  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:52:08  

Additional Information
 Earth MOID = 1.0944 au 
 Jupiter MOID = 2.39714 au 
 T_jup = 3.340 
[ 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 12.3 mag n/a MPO347699  

23120 Paulallen           Discovered 2000 Jan. 5 by C. W. Juels at Fountain Hills.
Paul G. Allen (b. 1953) is a computer industry executive who has provided generous financial support to the Spacewatch program to find near-earth asteroids, SpaceShipOne to pioneer civilian suborbital spaceflight and the Allen Telescope Array to study the radio universe and search for extraterrestial intelligence.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060613/MPCPages.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2000 AP50 = 1973 YQ = 1983 AT1 = 1990 WQ13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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