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33544 Jerold (1999 JY8)
Classification: Main-belt Asteroid          SPK-ID: 2033544
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695821576710017 2.8807e-08  
a 2.540619310208007 8.2828e-09 au
q 2.109775605762321 7.2153e-08 au
i 13.41220546766069 3.8903e-06 deg
node 50.11538142093844 1.5121e-05 deg
peri 256.8220779074887 2.0794e-05 deg
M 59.34390496457288 1.3667e-05 deg
tp 2458956.673200226899
(2020-Apr-17.17320023)
5.6262e-05 TDB
period 1479.135017668924
4.05
7.2333e-06
1.98e-08
d
yr
n .2433854892891049 1.1902e-09 deg/d
Q 2.971463014653692 9.6875e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2278  
   data-arc span      10277 days (28.14 yr)  
   first obs. used      1992-11-26  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4884  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:51:31  

Additional Information
 Earth MOID = 1.14057 au 
 Jupiter MOID = 2.34877 au 
 T_jup = 3.388 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457523.5 (2016-May-15.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1694130013566273 2.8857e-08  
q 2.110777564095354 7.2391e-08 au
tp 2457478.620597448520
(2016-Mar-31.12059745)
5.7655e-05 TDB
node 50.14174648395687 1.5111e-05 deg
peri 257.1817054717941 2.0783e-05 deg
i 13.41628022779166 3.8917e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2278  
   data-arc span      10277 days (28.14 yr)  
   first obs. used      1992-11-26  
   last obs. used      2021-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4884  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:51:31  

Additional Information
 Jupiter MOID = 2.34877 au 
 T_jup = 3.388 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.327011173016023E-16 -2.079667858319862E-15 8.519502226058158E-13 -2.778798798228827E-15 2.098051431907457E-13 -4.421272507246949E-15
q -2.079667858319862E-15 5.240418998194665E-15 -2.263850233977945E-12 5.99632198054988E-15 -5.567587037647673E-13 1.177663968200113E-14
tp 8.519502226058158E-13 -2.263850233977945E-12 3.324076111898765E-9 5.539336462333069E-12 8.370054346205734E-10 -1.495416750491685E-11
node -2.778798798228827E-15 5.99632198054988E-15 5.539336462333069E-12 2.283547657374094E-10 -2.207172960622585E-10 -3.197180340818786E-11
peri 2.098051431907457E-13 -5.567587037647673E-13 8.370054346205734E-10 -2.207172960622585E-10 4.319434375541751E-10 2.746067761426337E-11
i -4.421272507246949E-15 1.177663968200113E-14 -1.495416750491685E-11 -3.197180340818786E-11 2.746067761426337E-11 1.514514953226651E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.02   n/a E2021B10  
diameter diameter 3.966 km 0.979 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.372   0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

33544 Jerold           Discovered 1999 May 15 by C. W. Juels at Fountain Hills.
Jerold Z. Kaplan (b. 1945) is a physician and surgeon who has been caring for individuals with burns and wounds in northern California since 1977. He is a burn prevention educator and utilizes medical hypnosis. As teenagers, he and this minor planet's discoverer often viewed the heavens with the latter's 60-mm refractor.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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