Orbit Fit and Astrometric record for 02TD301

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: 02TD301   
# Created Fri Nov  1 01:08:15 2024
# Orbit generated from Bernstein formalism
# Fitting     26 observations of     26
# Arc:   1.08d
# First observation: 2002/10/06
#  Last observation: 2002/10/07
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:  1022.53 DOF:     48 RMS:  1.11
# Min/Max residuals:    -6.64    0.86
# Exact a, adot, b, bdot, g, gdot:
  1.125113E-05  2.232406E-02  8.912428E-07  1.488508E-04  2.354907E-02  0.000000E+00
# Covariance matrix:
  3.2452E-11  4.7996E-08  1.9442E-13  3.4376E-10  7.9604E-09  0.0000E+00
  4.7996E-08  7.1249E-05  2.8833E-10  5.0979E-07  1.1805E-05  0.0000E+00
  1.9442E-13  2.8833E-10  7.3222E-14 -2.1372E-11  4.7797E-11  0.0000E+00
  3.4376E-10  5.0979E-07 -2.1372E-11  3.8949E-08  8.4511E-08  0.0000E+00
  7.9604E-09  1.1805E-05  4.7797E-11  8.4511E-08  1.9570E-06  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  1.7185E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.346049   30.539758    0.306447   -0.022372   -0.950959  2452553.943653
# Heliocentric elements and errors
Epoch:              2452550.5000  =  2002/10/03
Mean Anomaly:          223.87730 +/-   115.823
Argument of Peri:       63.08723 +/-    90.166
Long of Asc Node:      104.31000 +/-    19.440
Inclination:             1.36830 +/-     0.132
Eccentricity:         0.01465146 +/-    0.5780
Semi-Major Axis:     42.96051415 +/-   21.8583
Time of Perihelion: 2491439.8502 +/-  649509.7
Perihelion:          42.33107977 +/-   32.8691
Aphelion:            43.58994854 +/-   33.2923
Period (y)              281.5869 +/-    214.91
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           37.53763141 +/-    2.1722
Ecliptic Y           21.79672447 +/-    1.2813
Ecliptic Z           -0.99748446 +/-    0.0593
Ecliptic XDOT        -0.00132605 +/-    0.0014
Ecliptic YDOT         0.00223249 +/-    0.0011
Ecliptic ZDOT         0.00001751 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.41849772 +/-    1.9851
Geocenter to KBO     42.46452176 +/-    2.5226
# Hcoef: 10.58

The following table shows the complete astrometric record for 02TD301. 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 (02TD301) followed by the observatory code and reference code for the source of the astrometry.

2002 10  06.44291  01 55 37.25   +10 23 59.5         02TD301   568  Cg6276      
2002 10  06.44796  01 55 37.20   +10 23 59.8   26.6R 02TD301   568  Cg6276      
2002 10  06.45279  01 55 37.19   +10 23 59.4         02TD301   568  Cg6276      
2002 10  06.46244  01 55 37.13   +10 23 59.5         02TD301   568  Cg6276      
2002 10  06.47210  01 55 37.10   +10 23 59.4         02TD301   568  Cg6276      
2002 10  06.47692  01 55 37.05   +10 23 59.3         02TD301   568  Cg6276      
2002 10  06.48179  01 55 36.69   +10 23 52.8         02TD301   568  Cg6276      
2002 10  06.52261  01 55 36.87   +10 23 58.5         02TD301   568  Cg6276      
2002 10  06.52743  01 55 36.85   +10 23 57.4         02TD301   568  Cg6276      
2002 10  06.53708  01 55 36.82   +10 23 57.8         02TD301   568  Cg6276      
2002 10  06.54193  01 55 36.79   +10 23 57.4         02TD301   568  Cg6276      
2002 10  06.54678  01 55 36.78   +10 23 57.1         02TD301   568  Cg6276      
2002 10  06.55161  01 55 36.76   +10 23 56.9         02TD301   568  Cg6276      
2002 10  06.61671  01 55 36.45   +10 23 55.7         02TD301   568  Cg6276      
2002 10  07.35662  01 55 33.27   +10 23 37.3         02TD301   568  Cg6276      
2002 10  07.36144  01 55 33.27   +10 23 37.1         02TD301   568  Cg6276      
2002 10  07.36627  01 55 33.25   +10 23 37.1         02TD301   568  Cg6276      
2002 10  07.39039  01 55 33.12   +10 23 36.6         02TD301   568  Cg6276      
2002 10  07.39522  01 55 33.10   +10 23 36.4         02TD301   568  Cg6276      
2002 10  07.40007  01 55 33.11   +10 23 36.3         02TD301   568  Cg6276      
2002 10  07.40522  01 55 33.06   +10 23 36.1         02TD301   568  Cg6276      
2002 10  07.41487  01 55 33.02   +10 23 36.0         02TD301   568  Cg6276      
2002 10  07.47336  01 55 32.81   +10 23 34.7         02TD301   568  Cg6276      
2002 10  07.51197  01 55 32.58   +10 23 33.7         02TD301   568  Cg6276      
2002 10  07.51720  01 55 32.57   +10 23 33.7         02TD301   568  Cg6276      
2002 10  07.52202  01 55 32.56   +10 23 33.8         02TD301   568  Cg6276      

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     0.77       0.00    -0.16
     2   0.0000     -0.59     0.53       0.54     0.38
     3   0.0000     -0.86     0.58       0.21     0.05
     4   0.0001     -1.66     0.45       0.62     0.45
     5   0.0001     -2.11     0.67       0.68     0.51
     6   0.0001     -2.84     0.27       0.84     0.68
     7   0.0001    -10.08    -6.64      -3.40    -3.56
     8   0.0002     -5.60     0.64       1.02     0.86
     9   0.0002     -6.26     0.31       0.09    -0.07
    10   0.0003     -6.54     0.70       0.62     0.46
    11   0.0003     -7.09     0.48       0.40     0.24
    12   0.0003     -7.34     0.57       0.17     0.01
    13   0.0003     -7.68     0.55       0.08    -0.07
    14   0.0005    -12.39     0.31       0.55     0.42
    15   0.0025    -62.78    -0.21      -0.35    -0.05
    16   0.0025    -62.84     0.05      -0.54    -0.24
    17   0.0025    -63.12     0.10      -0.44    -0.14
    18   0.0026    -65.09    -0.21      -0.24     0.06
    19   0.0026    -65.44    -0.22      -0.32    -0.03
    20   0.0026    -65.34     0.22      -0.47    -0.17
    21   0.0026    -66.10    -0.19      -0.40    -0.10
    22   0.0027    -66.69    -0.11      -0.29     0.01
    23   0.0028    -70.04     0.57      -0.43    -0.13
    24   0.0029    -73.57    -0.29      -0.18     0.12
    25   0.0029    -73.71    -0.06      -0.13     0.17
    26   0.0030    -73.81     0.17       0.01     0.32

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.

02TD301    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0