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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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1339151371134324 5.1014e-08  
a 3.071888213583566 1.8434e-08 au
q 2.660515882264386 1.5909e-07 au
i .6408401129863335 4.35e-06 deg
node 237.4978587209434 0.00048456 deg
peri 129.8791648163997 0.00048482 deg
M 125.8364559266347 1.6766e-05 deg
tp 2458513.098436216376
(2019-Jan-29.59843622)
8.971e-05 TDB
period 1966.556997650838
5.38
1.7702e-05
4.847e-08
d
yr
n .1830610556571918 1.6478e-09 deg/d
Q 3.483260544902746 2.0903e-08 au
  Orbit Determination Parameters
   # obs. used (total)      689  
   data-arc span      8547 days (23.40 yr)  
   first obs. used      1997-10-11  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56165  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:00  

Additional Information
 Earth MOID = 1.65781 au 
 Jupiter MOID = 1.98285 au 
 T_jup = 3.217 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457174.5 (2015-Jun-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302149988868553 5.0679e-08  
q 2.676146298754691 1.5687e-07 au
tp 2456533.998507792789
(2013-Aug-29.49850779)
9.0665e-05 TDB
node 238.7256354306988 0.00049206 deg
peri 127.1011773747024 0.00049232 deg
i .6334696791990766 4.3186e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      689  
   data-arc span      8547 days (23.40 yr)  
   first obs. used      1997-10-11  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56165  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:00  

Additional Information
 Jupiter MOID = 1.98285 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.568349581701203E-15 -7.90782688064477E-15 -7.254898585258826E-13 1.642364856989763E-14 -2.210079262235528E-13 1.742453576166914E-16
q -7.90782688064477E-15 2.460787837364618E-14 2.387187211374256E-12 -3.156807145215503E-14 7.037811092425014E-13 -7.067287865545159E-16
tp -7.254898585258826E-13 2.387187211374256E-12 8.220076725691589E-9 3.821172550809075E-11 1.513769620665321E-9 2.9257917873755E-13
node 1.642364856989763E-14 -3.156807145215503E-14 3.821172550809075E-11 2.421187817121788E-7 -2.420950307198118E-7 -3.532665676899671E-10
peri -2.210079262235528E-13 7.037811092425014E-13 1.513769620665321E-9 -2.420950307198118E-7 2.423778977698284E-7 3.532667582978571E-10
i 1.742453576166914E-16 -7.067287865545159E-16 2.9257917873755E-13 -3.532665676899671E-10 3.532667582978571E-10 1.865003574955587E-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 15.14   n/a E2021B55  

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

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