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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .133915136927663 5.1308e-08  
a 3.071888216736404 1.8928e-08 au
q 2.660515885565674 1.6042e-07 au
i .640840858914586 4.5807e-06 deg
node 237.4978577851195 0.00048459 deg
peri 129.8791652419642 0.00048487 deg
M 125.8364558600897 1.6989e-05 deg
tp 2458513.098435521614
(2019-Jan-29.59843552)
9.1206e-05 TDB
period 1966.557000678407
5.38
1.8176e-05
4.976e-08
d
yr
n .1830610553753642 1.692e-09 deg/d
Q 3.483260547907134 2.1463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      662  
   data-arc span      8501 days (23.27 yr)  
   first obs. used      1997-10-11  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56748  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:49  

Additional Information
 Earth MOID = 1.65781 au 
 Jupiter MOID = 1.98285 au 
 T_jup = 3.217 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457044.5 (2015-Jan-22.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302066834752041 5.0926e-08  
q 2.67423344648129 1.5804e-07 au
tp 2456532.520861020549
(2013-Aug-28.02086102)
9.3259e-05 TDB
node 238.8868084974709 0.00049155 deg
peri 126.5947274516945 0.00049185 deg
i .6342254175983831 4.549e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      662  
   data-arc span      8501 days (23.27 yr)  
   first obs. used      1997-10-11  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56748  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:49  

Additional Information
 Jupiter MOID = 1.98285 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.593489785569004E-15 -8.004920263363553E-15 -6.157356885090424E-13 1.546788051429491E-14 -1.970191033618525E-13 1.540941186946887E-16
q -8.004920263363553E-15 2.497605039996136E-14 1.991563055380054E-12 -3.407299204929244E-14 6.228527660266552E-13 -4.48913612763644E-16
tp -6.157356885090424E-13 1.991563055380054E-12 8.697288520544143E-9 2.359040403388056E-11 1.632601714460481E-9 4.916864480678159E-13
node 1.546788051429491E-14 -3.407299204929244E-14 2.359040403388056E-11 2.416250481102961E-7 -2.416040823429846E-7 -3.561746249427105E-10
peri -1.970191033618525E-13 6.228527660266552E-13 1.632601714460481E-9 -2.416040823429846E-7 2.419124838233341E-7 3.562136432555551E-10
i 1.540941186946887E-16 -4.48913612763644E-16 4.916864480678159E-13 -3.561746249427105E-10 3.562136432555551E-10 2.069361350860377E-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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