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100621 (1997 TX23)
Classification: Main-belt Asteroid          SPK-ID: 2100621
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1339151373116765 5.0998e-08  
a 3.071888213410567 1.8407e-08 au
q 2.66051588150557 1.5902e-07 au
i .6408399126130558 4.3361e-06 deg
node 237.4978572674813 0.00048455 deg
peri 129.8791664208428 0.00048481 deg
M 125.8364558370244 1.6753e-05 deg
tp 2458513.098436763955
(2019-Jan-29.59843676)
8.9627e-05 TDB
period 1966.556997484711
5.38
1.7676e-05
4.839e-08
d
yr
n .183061055672656 1.6454e-09 deg/d
Q 3.483260545315563 2.0872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      693  
   data-arc span      8561 days (23.44 yr)  
   first obs. used      1997-10-11  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56111  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:31:52  

Additional Information
 Earth MOID = 1.65781 au 
 Jupiter MOID = 1.98285 au 
 T_jup = 3.217 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457183.5 (2015-Jun-10.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .130219622170591 5.0665e-08  
q 2.676252198192115 1.5681e-07 au
tp 2456534.114413063955
(2013-Aug-29.61441306)
9.0516e-05 TDB
node 238.708157895695 0.00049208 deg
peri 127.1433263175092 0.00049234 deg
i .6334251719301873 4.3048e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      693  
   data-arc span      8561 days (23.44 yr)  
   first obs. used      1997-10-11  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56111  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:31:52  

Additional Information
 Jupiter MOID = 1.98285 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.566968373091068E-15 -7.902574495644567E-15 -7.314016469270386E-13 1.649108222829328E-14 -2.223306070784879E-13 1.742190505948921E-16
q -7.902574495644567E-15 2.458814143310185E-14 2.407601573301178E-12 -3.179029003746348E-14 7.083314884019189E-13 -7.210141340302556E-16
tp -7.314016469270386E-13 2.407601573301178E-12 8.193212637650802E-9 3.911185732413896E-11 1.506965246944302E-9 2.741109823950105E-13
node 1.649108222829328E-14 -3.179029003746348E-14 3.911185732413896E-11 2.421398790025544E-7 -2.421159861889138E-7 -3.545160387333899E-10
peri -2.223306070784879E-13 7.083314884019189E-13 1.506965246944302E-9 -2.421159861889138E-7 2.423974113151499E-7 3.54512604912335E-10
i 1.742190505948921E-16 -7.210141340302556E-16 2.741109823950105E-13 -3.545160387333899E-10 3.54512604912335E-10 1.853147587787276E-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 15.15   n/a MPCxxxxx  

100621 (1997 TX23)          Discovered 1997-Oct-11 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1956-Nov-18 11:53 00:02 Jupiter 1.97422868982006 1.97422819666543 1.97422918297469 2.48000225614079 2.30050684932728 2435795.995043694 1.62641106597209 89.618478728191 8.63887814617451 -89.7451185871498 2527663.54023691 T 31 CATAB v2.0g-lin.ifort 2021-May-04 08:31:56 2021-May-04 08:31
2015-Nov-24 07:06 < 00:01 Jupiter 1.98319957733098 1.98319908889 1.98320006577185 2.56689690857175 2.39473626622354 2457350.796141147 0.215204969652259 44.4703854647655 8.60568653032784 84.2374135973434 2542137.98745383 T 31 CATAB v2.0g-lin.ifort 2021-May-04 08:31:56 2021-May-04 08:31
2124-Mar-16 08:25 00:03 Jupiter 1.99761024318434 1.99760973791109 1.99761074845783 2.53754714887127 2.36455275304558 2496909.850562772 2.92509232303078 123.662021246933 9.05867381401679 -89.6749993716187 2591088.98804153 T 31 CATAB v2.0g-lin.ifort 2021-May-04 08:31:56 2021-May-04 08:31
2183-Mar-22 10:26 00:05 Jupiter 1.98394878836892 1.98394826891077 1.98394930782797 2.46784512071817 2.28831469896963 2518464.935048683 4.53413260255271 199.298820260147 8.18994303965866 -89.6468549806324 2511122.74146044 T 31 CATAB v2.0g-lin.ifort 2021-May-04 08:31:56 2021-May-04 08:31

Alternate Designations
 1997 TX23 = 1999 CJ136 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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