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21543 Jessop (1998 QQ24)
Classification: Outer Main-belt Asteroid          SPK-ID: 2021543
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0535685153404836 3.9419e-08  
a 3.248485985488818 2.6842e-08 au
q 3.074469414141815 1.3604e-07 au
i 8.632974792308714 4.7276e-06 deg
node 309.9077745952081 3.2538e-05 deg
peri 338.9613066206559 6.1111e-05 deg
M 333.2021180394225 5.0486e-05 deg
tp 2459359.690773198282
(2021-May-25.19077320)
0.00029954 TDB
period 2138.552533207244
5.86
2.6506e-05
7.257e-08
d
yr
n .1683381606997975 2.0864e-09 deg/d
Q 3.422502556835822 2.828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1013  
   data-arc span      11099 days (30.39 yr)  
   first obs. used      1990-03-02  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54334  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:56:25  

Additional Information
 Earth MOID = 2.05819 au 
 Jupiter MOID = 1.77495 au 
 T_jup = 3.162 
[ 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 13.73   n/a E2021B10  
diameter diameter 9.670 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21543 Jessop           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Forrest Connell Jessop (b. 1988) was awarded second place in the 2006 Intel International Science and Engineering Fair for his zoology team project. He attends the Corvallis High School, Corvallis, Montana, 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: 20060711/MPCPages.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1998 QQ24 = 1990 EQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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