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JPL Small-Body Database Browser
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18117 Jonhodge (2000 NY23)
Classification: Main-belt Asteroid          SPK-ID: 2018117
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08716413962544256 2.6463e-08  
a 2.351971391998667 7.9572e-09 au
q 2.146963829191448 6.275e-08 au
i 1.141102483017906 3.0591e-06 deg
node 274.75170913942 0.00017198 deg
peri 347.3359007526716 0.00017327 deg
M 116.4352801718242 2.0648e-05 deg
tp 2458174.383284296383
(2018-Feb-24.88328430)
7.5687e-05 TDB
period 1317.487426722603
3.61
6.686e-06
1.831e-08
d
yr
n .2732473894612718 1.3867e-09 deg/d
Q 2.556978954805885 8.6507e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1899  
   data-arc span      9579 days (26.23 yr)  
   first obs. used      1993-09-14  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49434  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:25:30  

Additional Information
 Earth MOID = 1.13101 au 
 Jupiter MOID = 2.48268 au 
 T_jup = 3.552 
[ 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 14.5   n/a MPO412320  
diameter diameter 3.155 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.407   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18117 Jonhodge           Discovered 2000 July 5 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Jonathon Hodge (b. 1948) has taught at California's Santa Monica College for more than 30 years and has made an enormous contribution to the dissemination of astronomy and science to college students, schoolchildren and the general public.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

[ show close-approach data ]
Alternate Designations
 2000 NY23 = 1993 RK8 = 1997 WU27 = 1999 FB22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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