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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1442282046349821 4.3752e-08  
a 2.277732285849573 6.0361e-09 au
q 1.949219047622355 9.9928e-08 au
i 2.691493721725114 4.5291e-06 deg
node 228.6906684550299 7.4487e-05 deg
peri 168.2619979697349 7.5568e-05 deg
M 111.8794826773212 1.1681e-05 deg
tp 2458810.288205390001
(2019-Nov-22.78820539)
4.0714e-05 TDB
period 1255.603285767384
3.44
4.9911e-06
1.366e-08
d
yr
n .2867147641939944 1.1397e-09 deg/d
Q 2.60624552407679 6.9067e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1556  
   data-arc span      9284 days (25.42 yr)  
   first obs. used      1995-10-15  
   last obs. used      2021-03-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52913  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:57:36  

Additional Information
 Earth MOID = .955393 au 
 Jupiter MOID = 2.79612 au 
 T_jup = 3.592 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.98   n/a E2021B10  
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

[ show close-approach data ]
Alternate Designations
 2000 CX26 = 1997 EM49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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