Orbit Fit and Astrometric record for 04TX357

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 04TX357   
# Created Sun Dec  5 02:10:05 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     32 observations of     32
# Arc:  21.25y
# First observation: 1999/10/13
#  Last observation: 2021/01/11
# Chi-squared of fit:   130.55 DOF:     58 RMS:  0.36
# Min/Max residuals:    -1.25    0.67
# Exact a, adot, b, bdot, g, gdot:
  1.744290E-05  4.118218E-02  6.319161E-06  1.199528E-02  3.450822E-02 -4.312108E-03
# Covariance matrix:
  3.7550E-13 -6.3307E-14  8.6221E-14 -1.8104E-14  9.0566E-14 -4.3224E-14
 -6.3307E-14  1.2299E-14 -1.7716E-14  3.7204E-15 -1.7063E-14  8.8355E-15
  8.6221E-14 -1.7716E-14  1.3408E-13 -1.3611E-14  3.3050E-14 -1.4044E-14
 -1.8104E-14  3.7204E-15 -1.3611E-14  2.0418E-15 -6.9028E-15  2.9471E-15
  9.0566E-14 -1.7063E-14  3.3050E-14 -6.9028E-15  1.2542E-13 -1.9251E-14
 -4.3224E-14  8.8355E-15 -1.4044E-14  2.9471E-15 -1.9251E-14  7.1736E-15
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.383383   35.622882    0.272788   -0.006586   -0.951673  2451464.880896
# Heliocentric elements and errors
Epoch:              2451464.5000  =  1999/10/13
Mean Anomaly:          336.83050 +/-     1.342
Argument of Peri:       34.73154 +/-     0.000
Long of Asc Node:       36.37171 +/-     0.000
Inclination:            16.21469 +/-     0.000
Eccentricity:         0.21736216 +/-    0.0012
Semi-Major Axis:     36.94525385 +/-    0.0003
Time of Perihelion: 2456743.4870 +/-     305.8
Perihelion:          28.91475365 +/-    0.0436
Aphelion:            44.97575405 +/-    0.0436
Period (y)              224.5671 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           24.49499153 +/-    0.0014
Ecliptic Y           17.21330045 +/-    0.0010
Ecliptic Z           -0.19371499 +/-    0.0000
Ecliptic XDOT        -0.00218053 +/-    0.0000
Ecliptic YDOT         0.00246847 +/-    0.0000
Ecliptic ZDOT         0.00095404 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.93899714 +/-    0.0013
Geocenter to KBO     28.97869635 +/-    0.0018
# Hcoef:  8.64

The following table shows the complete astrometric record for 04TX357. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (04TX357) followed by the observatory code and reference code for the source of the astrometry.

1999 10  13.380153 02 13 48.48   +13 02 04.7         04TX357   645  C~1SKy      
1999 10  13.380982 02 13 48.47   +13 02 04.6         04TX357   645  C~1SKy      
1999 10  13.383470 02 13 48.46   +13 02 04.6         04TX357   645  C~1SKy      
2004 10  15.42076  02 56 54.10   +20 04 16.1   22.2R 04TX357   695  Cm0609      
2004 10  15.50089  02 56 53.59   +20 04 14.3         04TX357   695  Cm0609      
2004 11  09.22177  02 54 04.77   +19 55 55.9   22.3R 04TX357   695  Cm0609      
2004 11  09.31417  02 54 04.11   +19 55 53.8         04TX357   695  Cm0609      
2004 11  10.29685  02 53 57.16   +19 55 31.2         04TX357   695  Cm0609      
2004 12  10.15688  02 50 41.47   +19 44 02.9   23.2R 04TX357   688  Cm1767      
2004 12  10.24016  02 50 40.89   +19 44 00.1         04TX357   688  Cm1767      
2004 12  11.11947  02 50 36.09   +19 43 43.4   21.8R 04TX357   688  Cm1767      
2004 12  11.20271  02 50 35.62   +19 43 40.9         04TX357   688  Cm1767      
2005 12  01.21277  03 00 48.35   +21 10 10.7   22.7R 04TX357   695  Cs2691      
2005 12  01.26886  03 00 47.98   +21 10 09.6         04TX357   695  Cs2691      
2005 12  01.32709  03 00 47.58   +21 10 07.9         04TX357   695  Cs2691      
2006 08  21.33972  03 18 31.60   +22 42 55.7   21.9R 04TX357   807  Cs2691      
2006 08  22.32390  03 18 32.11   +22 43 12.4         04TX357   807  Cs2691      
2006 08  23.31162  03 18 32.43   +22 43 29.8         04TX357   807  Cs2691      
2006 10  19.31756  03 15 17.67   +22 45 16.8   22.5R 04TX357   695  Ct0489      
2006 10  20.24785  03 15 11.69   +22 45 04.9         04TX357   695  Ct0489      
2006 10  20.37108  03 15 10.88   +22 45 03.4         04TX357   695  Ct0489      
2008 07  24.18782  03 36 11.76   +24 58 37.6   25.9R 04TX357   250  S~06Al      
2008 07  24.19407  03 36 11.79   +24 58 37.6         04TX357   250  S~06Al      
2008 07  24.20032  03 36 11.83   +24 58 37.9         04TX357   250  S~06Al      
2008 07  24.20657  03 36 11.81   +24 58 38.2         04TX357   250  S~06Al      
2008 10  24.37121  03 34 22.52   +25 19 15.1   23.5r 04TX357   695  C~0gMC      
2008 10  24.49233  03 34 21.71   +25 19 13.9   23.4r 04TX357   695  C~0gMC      
2014 09  26.42446  04 41 16.41   +31 52 33.3   24.3R 04TX357   695  C~1LJN      
2014 09  26.46908  04 41 16.34   +31 52 34.3         04TX357   695  C~1LJN      
2021 01  11.295310 05 42 24.043  +36 31 42.87  22.9G 04TX357   G37  C~4Ty0      
2021 01  11.340940 05 42 23.703  +36 31 42.30        04TX357   G37  C~4Ty0      
2021 01  11.385940 05 42 23.350  +36 31 41.98        04TX357   G37  C~4Ty0      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

     1   0.0000      0.00     0.34       0.00    -0.06
     2   0.0000      0.00     0.27       0.00    -0.14
     3   0.0000      0.00     0.36       0.00    -0.08
     4   5.0076      0.00    -0.22       0.00    -0.03
     5   5.0079      0.00    -0.16       0.00    -0.49
     6   5.0755      0.00    -0.32       0.00     0.01
     7   5.0758      0.00    -0.26       0.00     0.02
     8   5.0785      0.00    -0.28       0.00     0.07
     9   5.1602      0.00     0.26       0.00    -0.17
    10   5.1605      0.00    -1.25       0.00    -1.21
    11   5.1629      0.00     0.46       0.00     0.60
    12   5.1631      0.00     0.48       0.00    -0.17
    13   6.1351      0.00    -0.04       0.00     0.12
    14   6.1352      0.00     0.03       0.00     0.31
    15   6.1354      0.00    -0.14       0.00    -0.05
    16   6.8555      0.00    -0.02       0.00     0.45
    17   6.8582      0.00     0.40       0.00    -0.52
    18   6.8609      0.00     0.03       0.00    -0.35
    19   7.0169      0.00    -0.27       0.00     0.08
    20   7.0195      0.00    -0.14       0.00     0.08
    21   7.0198      0.00    -0.11       0.00     0.15
    22   8.7798      0.00     0.27       0.00     0.67
    23   8.7798      0.00     0.24       0.00     0.46
    24   8.7798      0.00     0.36       0.00     0.55
    25   8.7798      0.00    -0.42       0.00     0.64
    26   9.0321      0.00    -0.27       0.00    -0.08
    27   9.0325      0.00    -0.12       0.00    -0.11
    28  14.9543      0.00    -0.20       0.00     0.02
    29  14.9544      0.00     0.02       0.00     0.02
    30  21.2482      0.00    -0.03       0.00    -0.23
    31  21.2484      0.00     0.13       0.00    -0.31
    32  21.2485      0.00    -0.01       0.00    -0.13

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

04TX357    quality flag:3

Type:           4:3E      4:3E      4:3E

axisobj        36.946    36.946    36.947
ecceobj         0.218     0.218     0.218
incobj         16.215    16.215    16.215
qmin           28.365    27.916    28.392
qmax           45.226    45.450    45.205
amean          36.476    36.476    36.476
amin           35.961    36.006    35.967
amax           37.025    37.005    37.048
emean           0.204     0.199     0.205
emin            0.186     0.136     0.188
emax            0.224     0.232     0.221
imean          14.388    14.787    12.559
imin           13.208    12.774     7.234
imax           16.145    16.905    16.145
excite_mean     0.322     0.324     0.300
fracstop        1.000     1.000     1.000
cjmean          2.906     2.909     2.924

libcent 0       180.5     180.0     180.0
libamp  0       141.5     135.9     137.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       174.6     122.0     183.7
kozaiamp        180.0     179.9     179.9