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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2132581761701802 8.035e-08  
a 2.621106542681955 2.3494e-08 AU
q 2.062134141841875 2.0657e-07 AU
i 12.42488005802211 8.6448e-06 deg
node 292.5201301099423 3.5761e-05 deg
peri 69.85614519885497 4.0099e-05 deg
M 282.1198492195904 2.0332e-05 deg
tp 2457335.812482914802
(2015-Nov-09.31248291)
8.9418e-05 JED
period 1549.977659772242
4.24
2.0839e-05
5.705e-08
d
yr
n .2322614121115135 3.1228e-09 deg/d
Q 3.180078943522035 2.8504e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      822  
   data-arc span      15128 days (41.42 yr)  
   first obs. used      1973-12-20  
   last obs. used      2015-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50067  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:44:08  

Additional Information
 Earth MOID = 1.09614 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 12.2 mag n/a MPO296320  

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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