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100044 (1991 TX)
Classification: Main-belt Asteroid          SPK-ID: 2100044
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .282595402091356 7.1635e-08  
a 2.406223102904085 1.9275e-08 au
q 1.726235517617395 1.7918e-07 au
i 24.17735384779088 6.7975e-06 deg
node 76.6205326305969 1.4981e-05 deg
peri 285.0414375026618 1.9255e-05 deg
M 249.0657111642503 1.9726e-05 deg
tp 2459420.612465571276
(2021-Jul-25.11246557)
7.8137e-05 TDB
period 1363.333998828688
3.73
1.6381e-05
4.485e-08
d
yr
n .2640585508094824 3.1728e-09 deg/d
Q 3.086210688190774 2.4721e-08 au
  Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      10494 days (28.73 yr)  
   first obs. used      1991-10-01  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64128  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:08:24  

Additional Information
 Earth MOID = .87563 au 
 Jupiter MOID = 2.7301 au 
 T_jup = 3.353 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457902.5 (2017-May-29.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .282224739110153 7.1675e-08  
q 1.727412822354726 1.7925e-07 au
tp 2458057.637341853826
(2017-Oct-31.13734185)
6.7799e-05 TDB
node 76.62225224828337 1.4979e-05 deg
peri 285.1488459837491 1.9261e-05 deg
i 24.17643430201221 6.7976e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      10494 days (28.73 yr)  
   first obs. used      1991-10-01  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64128  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:08:24  

Additional Information
 Jupiter MOID = 2.7301 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.137238519215685E-15 -1.281735371700121E-14 2.247964223623376E-13 1.571557904438594E-14 1.466512869464333E-13 1.036988966244542E-14
q -1.281735371700121E-14 3.21298953464603E-14 -1.528094860002213E-14 -3.307120086754617E-14 -2.716373610276362E-13 -2.490945488401325E-14
tp 2.247964223623376E-13 -1.528094860002213E-14 4.596655312005894E-9 4.559613693978399E-11 8.728514500011811E-10 -2.8118148576824E-12
node 1.571557904438594E-14 -3.307120086754617E-14 4.559613693978399E-11 2.243751145807523E-10 -1.946883397620779E-10 -4.559428250539502E-11
peri 1.466512869464333E-13 -2.716373610276362E-13 8.728514500011811E-10 -1.946883397620779E-10 3.710051690770517E-10 4.107232493746792E-11
i 1.036988966244542E-14 -2.490945488401325E-14 -2.8118148576824E-12 -4.559428250539502E-11 4.107232493746792E-11 4.620701735834077E-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 15.1   n/a MPO436465  

100044 (1991 TX)          Discovered 1991-Oct-01 by McNaught, R. H. at Siding Spring
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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