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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07752745795976941 3.359e-08  
a 2.976812375204944 1.8084e-08 au
q 2.746027678932121 9.6922e-08 au
i 10.25063149150457 3.8554e-06 deg
node 98.73441801728723 1.9901e-05 deg
peri 227.2262018166925 3.3027e-05 deg
M 158.5519231651882 2.7714e-05 deg
tp 2458374.282034800222
(2018-Sep-12.78203480)
0.00014307 TDB
period 1875.968840579955
5.14
1.7095e-05
4.68e-08
d
yr
n .1919008419610563 1.7487e-09 deg/d
Q 3.207597071477766 1.9486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1252  
   data-arc span      9603 days (26.29 yr)  
   first obs. used      1994-12-03  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50383  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:32:57  

Additional Information
 Earth MOID = 1.74284 au 
 Jupiter MOID = 2.04579 au 
 T_jup = 3.232 
[ 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 14.47   n/a MPCxxxxx  
diameter diameter 4.402 km 0.730 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 43.0938 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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