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175784 (1999 JX66)
Classification: Main-belt Asteroid          SPK-ID: 2175784
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1747754462139463 3.9101e-08  
a 2.732433386001687 1.6593e-08 au
q 2.254871121713358 1.108e-07 au
i 8.07683703719395 4.7949e-06 deg
node 180.085399854755 2.9189e-05 deg
peri 68.6883114822682 3.2438e-05 deg
M 301.8896649985384 1.6857e-05 deg
tp 2459662.801541173278
(2022-Mar-24.30154117)
7.8672e-05 TDB
period 1649.767718943093
4.52
1.5027e-05
4.114e-08
d
yr
n .2182125373568531 1.9876e-09 deg/d
Q 3.209995650290017 1.9492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      596  
   data-arc span      8079 days (22.12 yr)  
   first obs. used      1999-03-25  
   last obs. used      2021-05-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55965  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:29:21  

Additional Information
 Earth MOID = 1.25708 au 
 Jupiter MOID = 1.85839 au 
 T_jup = 3.317 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457596.5 (2016-Jul-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .176028333639633 3.897e-08  
q 2.250646129630178 1.1059e-07 au
tp 2458012.620213748734
(2017-Sep-16.12021375)
7.0381e-05 TDB
node 180.1237475450419 2.9184e-05 deg
peri 68.64169385680962 3.2409e-05 deg
i 8.07840258812104 4.7965e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      596  
   data-arc span      8079 days (22.12 yr)  
   first obs. used      1999-03-25  
   last obs. used      2021-05-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55965  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:29:21  

Additional Information
 Jupiter MOID = 1.85839 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.518683089256801E-15 -4.279098159488926E-15 -8.605909109553659E-13 -2.917693805308E-15 -1.570761254574075E-13 2.065357663134724E-16
q -4.279098159488926E-15 1.223111609582639E-14 2.787563905571009E-12 9.568489888453457E-15 5.044996069513971E-13 -1.73057933384212E-16
tp -8.605909109553659E-13 2.787563905571009E-12 4.953538849872404E-9 4.390604712113015E-12 1.007987690026452E-9 4.921306369517871E-13
node -2.917693805308E-15 9.568489888453457E-15 4.390604712113015E-12 8.516981649571276E-10 -8.419822061436124E-10 1.755647547689339E-11
peri -1.570761254574075E-13 5.044996069513971E-13 1.007987690026452E-9 -8.419822061436124E-10 1.050324912570907E-9 -1.727206389724041E-11
i 2.065357663134724E-16 -1.73057933384212E-16 4.921306369517871E-13 1.755647547689339E-11 -1.727206389724041E-11 2.300637952111731E-11

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 15.53   n/a MPCxxxxx  

175784 (1999 JX66)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

[ show close-approach data ]
Alternate Designations
 1999 JX66 = 2000 SE194 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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