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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2132581791385527 8.1797e-08  
a 2.621106543499055 2.3987e-08 AU
q 2.062134134704301 2.0975e-07 AU
i 12.4248801035421 8.6463e-06 deg
node 292.520133543342 3.6031e-05 deg
peri 69.8561418968755 4.0333e-05 deg
M 282.1198487255084 2.06e-05 deg
tp 2457335.812485198863
(2015-Nov-09.31248520)
9.0698e-05 JED
period 1549.977660497024
4.24
2.1277e-05
5.825e-08
d
yr
n .2322614120029062 3.1883e-09 deg/d
Q 3.180078952293809 2.9103e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      802  
   data-arc span      14870 days (40.71 yr)  
   first obs. used      1973-12-20  
   last obs. used      2014-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50577  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:47:35  

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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