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17220 Johnpenna (2000 CX26)
Classification: Main-belt Asteroid          SPK-ID: 2017220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1443900739320918 4.3555e-08  
a 2.277370550732108 5.6875e-09 au
q 1.948540848541131 9.9275e-08 au
i 2.691816958239162 4.3893e-06 deg
node 228.6841057053578 7.2315e-05 deg
peri 168.2359251435794 7.3218e-05 deg
M 168.1119253826655 1.1077e-05 deg
tp 2458810.301100452343
(2019-Nov-22.80110045)
3.829e-05 TDB
period 1255.304187116976
3.44
4.7025e-06
1.287e-08
d
yr
n .2867830791091381 1.0743e-09 deg/d
Q 2.606200252923086 6.5087e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1697  
   data-arc span      9369 days (25.65 yr)  
   first obs. used      1995-10-15  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52041  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:48:34  

Additional Information
 Earth MOID = .955145 au 
 Jupiter MOID = 2.79734 au 
 T_jup = 3.593 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.99   n/a MPCxxxxx  
diameter diameter 5.665 km 0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17220 Johnpenna           Discovered 2000 Feb. 2 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Named in honor of John Penna for mentoring a finalist in the 2002 Intel Science Talent Search, a science competition for high school seniors. Penna is a teacher at the Governor Livingston High School, Berkeley Heights, New Jersey.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020227/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 2000 CX26 = 1997 EM49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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