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

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO257030 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.2136162 n/a  
a 2.6200508 n/a AU
q 2.0603655 n/a AU
i 12.42511 n/a deg
node 292.52432 n/a deg
peri 69.95177 n/a deg
M 142.59522 n/a deg
tp 2455786.9281005
(2011-Aug-13.42810050)		 n/a JED
period 1549.0412919
4.24		 n/a
n/a		 d
yr
n 0.23240181 n/a deg/d
Q 3.1797361 n/a AU
   Orbit Determination Parameters
   # obs. used (total)      747  
   first obs. used      1998-??-??  
   last obs. used      2013-03-15  
   # oppositions      11  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.48  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.340 

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0 mag n/a PDS3 (MPO 10216)  

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

Alternate Designations
 2000 AP50 = 1973 YQ = 1983 AT1 = 1990 WQ13 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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