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JPL Small-Body Database Browser
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24305 Darrellparnell (1999 YG4)
Classification: Main-belt Asteroid          SPK-ID: 2024305
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07731201751698426 3.4871e-08  
a 2.975560107933112 1.9471e-08 au
q 2.745513552745747 1.014e-07 au
i 10.25112795232602 4.1614e-06 deg
node 98.73646619991187 2.3241e-05 deg
peri 226.8713840476366 3.7595e-05 deg
M 43.76990528999425 3.0031e-05 deg
tp 2458372.557858304744
(2018-Sep-11.05785830)
0.00015637 TDB
period 1874.785208389538
5.13
1.8402e-05
5.038e-08
d
yr
n .1920219971808099 1.8848e-09 deg/d
Q 3.205606663120476 2.0976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      989  
   data-arc span      9135 days (25.01 yr)  
   first obs. used      1994-12-03  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54482  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:10:40  

Additional Information
 Earth MOID = 1.74323 au 
 Jupiter MOID = 2.04534 au 
 T_jup = 3.233 
[ 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 14.4   n/a MPO337464  
diameter diameter 4.402 km 0.730 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.190   0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24305 Darrellparnell           Discovered 1999 Dec. 26 by G. Hug and G. Bell at Farpoint Observatory.
Darrell Parnell taught astronomy at Washburn University of Topeka for nearly 40 years. During his tenure he inspired many astronomy students with his wit and talent for making hard concepts easy to understand. He is an exceptional educator and astronomer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010804/MPCPages.arcLast Updated: 2009-05-11

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