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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .174872608758687 3.9157e-08  
a 2.732766449811338 1.6566e-08 au
q 2.254880451604614 1.1095e-07 au
i 8.075963723104046 4.7973e-06 deg
node 180.0893623780426 2.9252e-05 deg
peri 68.65082294733267 3.2486e-05 deg
M 259.1693063115212 1.6624e-05 deg
tp 2459662.660108979428
(2022-Mar-24.16010898)
7.8633e-05 TDB
period 1650.069370212065
4.52
1.5004e-05
4.108e-08
d
yr
n .2181726456468513 1.9838e-09 deg/d
Q 3.210652448018062 1.9463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      8048 days (22.03 yr)  
   first obs. used      1999-03-25  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55851  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:04:31  

Additional Information
 Earth MOID = 1.25538 au 
 Jupiter MOID = 1.85882 au 
 T_jup = 3.317 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457589.5 (2016-Jul-20.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760314418917795 3.9017e-08  
q 2.250605164228281 1.1069e-07 au
tp 2458012.632874504263
(2017-Sep-16.13287450)
7.0383e-05 TDB
node 180.1238324519646 2.9242e-05 deg
peri 68.64630358478234 3.2459e-05 deg
i 8.078389675613648 4.7994e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      8048 days (22.03 yr)  
   first obs. used      1999-03-25  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55851  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:04:31  

Additional Information
 Jupiter MOID = 1.85882 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.522341792743988E-15 -4.287895349295323E-15 -8.600541273470325E-13 -2.933952023181898E-15 -1.572900028317589E-13 2.088924587057963E-16
q -4.287895349295323E-15 1.22520493229174E-14 2.786006886819268E-12 9.679794671967713E-15 5.04914863997533E-13 -1.723989409848968E-16
tp -8.600541273470325E-13 2.786006886819268E-12 4.953719816547694E-9 4.71005698755512E-12 1.00770518890058E-9 5.211099001437244E-13
node -2.933952023181898E-15 9.679794671967713E-15 4.71005698755512E-12 8.55097230813859E-10 -8.452864588760949E-10 1.786143264061446E-11
peri -1.572900028317589E-13 5.04914863997533E-13 1.00770518890058E-9 -8.452864588760949E-10 1.053571081048034E-9 -1.756879947583567E-11
i 2.088924587057963E-16 -1.723989409848968E-16 5.211099001437244E-13 1.786143264061446E-11 -1.756879947583567E-11 2.30339817181715E-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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1929-May-24 23:25 00:02 Jupiter 1.84973336219427 1.84973293239263 1.84973379199718 2.22358213350807 2.00710874017584 2425756.475761132 2.26826808229851 145.350783723061 37.5706500985424 74.9417144164299 1636016.26408585 T 19 CATAB v2.0g-lin.ifort 2021-May-04 10:04:34 2021-May-04 10:04
1987-Aug-14 14:34 < 00:01 Jupiter 1.96596514289973 1.96596455329986 1.96596573249981 3.22487135986663 3.08838292530455 2447022.106846991 0.745913611867574 66.3544703466671 16.991930181206 -77.2255318602298 2355111.15129894 T 19 CATAB v2.0g-lin.ifort 2021-May-04 10:04:34 2021-May-04 10:04
2024-Mar-17 11:33 < 00:01 Jupiter 1.85349604557361 1.85349566028415 1.85349643086297 2.26671792650049 2.05524629434687 2460386.981124973 0.260041821789855 61.287502289942 22.1849934932708 -79.5774616885756 2411766.1413174 T 19 CATAB v2.0g-lin.ifort 2021-May-04 10:04:34 2021-May-04 10:04
2082-Jun-07 07:05 00:02 Jupiter 1.99711659828769 1.9971157495065 1.99711744707115 3.36055206528829 3.23188254059839 2481652.794818741 1.69886922173585 133.016759011248 16.7786315714428 -77.4316292271962 2599231.27587355 T 19 CATAB v2.0g-lin.ifort 2021-May-04 10:04:34 2021-May-04 10:04
2119-Jan-08 14:57 00:03 Jupiter 1.85528273670312 1.85528235314176 1.85528312026437 2.3187486289709 2.11270030028536 2495016.122886176 2.66867346442528 176.155863262919 28.1756153134887 79.7162016355821 1707071.24675102 T 19 CATAB v2.0g-lin.ifort 2021-May-04 10:04:34 2021-May-04 10:04
2155-Aug-24 13:30 00:04 Jupiter 1.97819351126754 1.97819192063197 1.9781951019021 1.86102200959115 1.61463411055513 2508393.062452041 3.7567045222137 60.8646150096784 34.9228984873772 57.5907638068478 1580066.68863861 T 19 CATAB v2.0g-lin.ifort 2021-May-04 10:04:34 2021-May-04 10:04

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