Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2133455800636618 8.2275e-08  
a 2.62069984753591 2.4032e-08 AU
q 2.061585118390611 2.1085e-07 AU
i 12.4248882989655 8.6727e-06 deg
node 292.5205990073634 3.6097e-05 deg
peri 69.89516420471192 4.041e-05 deg
M 235.6248694396583 2.0337e-05 deg
tp 2457335.871688228663
(2015-Nov-09.37168823)
9.0649e-05 JED
period 1549.616928191382
4.24
2.1315e-05
5.836e-08
d
yr
n .2323154796844985 3.1956e-09 deg/d
Q 3.179814576681208 2.9159e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      799  
   data-arc span      14762 days (40.42 yr)  
   first obs. used      1973-12-20  
   last obs. used      2014-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50112  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:12:59  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-22 09:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin