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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2133455784665464 8.6059e-08  
a 2.620699842776143 2.4063e-08 AU
q 2.06158511883188 2.2072e-07 AU
i 12.42488311260955 8.7794e-06 deg
node 292.5206455083354 3.6423e-05 deg
peri 69.89512818536251 4.0767e-05 deg
M 235.6248665328286 2.0223e-05 deg
tp 2457335.871699282558
(2015-Nov-09.37169928)
9.008e-05 JED
period 1549.616923969715
4.24
2.1342e-05
5.843e-08
d
yr
n .2323154803174024 3.1996e-09 deg/d
Q 3.179814566720407 2.9196e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      14662 days (40.14 yr)  
   first obs. used      1973-12-20  
   last obs. used      2014-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53207  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:35:30  

Additional Information
 Earth MOID = 1.09416 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 12.1 mag n/a MPO263551  

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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