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17962 Andrewherron (1999 JD37)
Classification: Main-belt Asteroid          SPK-ID: 2017962
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 .1032897970514004 3.3146e-08  
a 2.262912872977212 6.4678e-09 au
q 2.029177061582395 7.4046e-08 au
i 5.469619149121723 2.8792e-06 deg
node 228.9130097805132 3.7515e-05 deg
peri 281.7677252053675 4.0015e-05 deg
M 191.2175050937289 1.4879e-05 deg
tp 2459783.441639210090
(2022-Jul-22.94163921)
5.2068e-05 TDB
period 1243.369404108951
3.40
5.3307e-06
1.459e-08
d
yr
n .2895358361001255 1.2413e-09 deg/d
Q 2.49664868437203 7.1359e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2038  
   data-arc span      14046 days (38.46 yr)  
   first obs. used      1982-07-11  
   last obs. used      2020-12-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51002  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:18:35  

Additional Information
 Earth MOID = 1.04782 au 
 Jupiter MOID = 2.51628 au 
 T_jup = 3.605 
[ 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 14.82   n/a E2021B10  
diameter diameter 3.074 km 0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 23.7925 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 0.205   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17962 Andrewherron           Discovered 1999 May 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Andrew Jared Herron (b. 1984) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for his physics project. He attends the Dallastown Area High School, Dallastown, Pennsylvania, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040614/MPCPages.arcLast Updated: 2009-12-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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