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17958 Schoof (1999 JE33)
Classification: Main-belt Asteroid          SPK-ID: 2017958
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03893766408027097 3.2797e-08  
a 2.403942226797611 8.5023e-09 au
q 2.310338331902187 8.1249e-08 au
i 1.703328173952083 3.7904e-06 deg
node 148.9339064137936 0.00013043 deg
peri 343.2335819884999 0.00014194 deg
M 16.81163371388711 5.5362e-05 deg
tp 2459136.924192566285
(2020-Oct-14.42419257)
0.00020931 TDB
period 1361.395987186629
3.73
7.2225e-06
1.977e-08
d
yr
n .264434450658219 1.4029e-09 deg/d
Q 2.497546121693035 8.8333e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1519  
   data-arc span      14916 days (40.84 yr)  
   first obs. used      1980-03-16  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49643  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:36:06  

Additional Information
 Earth MOID = 1.32438 au 
 Jupiter MOID = 2.49368 au 
 T_jup = 3.522 
[ 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 15.03   n/a E2021B10  
diameter diameter 2.244 km 0.548 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.345   0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17958 Schoof           Discovered 1999 May 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jenna Marie Schoof (b. 1987) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for her medicine and health project. She attends the Merlo Station High School, Beaverton, Oregon, 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

Alternate Designations
 1999 JE33 = 1980 FG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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