Orbit Fit and Astrometric record for 99TR11

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: 99TR11    
# Created Tue Oct 24 01:37:04 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   25
# Arc:   1.23y
# First observation: 1999/10/07
#  Last observation: 2000/12/28
Preliminary a, adot, b, bdot, g, gdot:
  -0.000185   0.041449   0.000003   0.012827   0.033938   0.000000
# Chi-squared of fit:    73.64 DOF:   42 RMS:  0.31
# Min/Max residuals:    -0.81    0.71
# Exact a, adot, b, bdot, g, gdot:
  2.038598E-05  4.192754E-02  4.500222E-06  1.294591E-02  3.431526E-02  2.865219E-03
# Covariance matrix:
  1.8987E-13  1.8788E-13 -1.4620E-14  1.5786E-13  2.5542E-13  1.0310E-11
  1.8788E-13  2.0228E-12 -8.6513E-14  9.3321E-13  1.1002E-12  6.1000E-11
 -1.4620E-14 -8.6513E-14  1.0673E-13 -1.6600E-13 -5.4669E-14 -3.1607E-12
  1.5786E-13  9.3321E-13 -1.6600E-13  8.6096E-13  5.8999E-13  3.4090E-11
  2.5542E-13  1.1002E-12 -5.4669E-14  5.8999E-13  8.1565E-13  3.8550E-11
  1.0310E-11  6.1000E-11 -3.1607E-12  3.4090E-11  3.8550E-11  2.2285E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.103806   55.657284    0.663023   -0.001555   -0.737501  2451458.929703
# Heliocentric elements and errors
Epoch:              2451450.5000  =  1999/09/29
Mean Anomaly:            7.36993 +/-     0.166
Argument of Peri:      346.86255 +/-     0.292
Long of Asc Node:       54.70597 +/-     0.000
Inclination:            17.09731 +/-     0.001
Eccentricity:         0.25306379 +/-    0.0003
Semi-Major Axis:     39.81952413 +/-    0.0086
Time of Perihelion: 2449571.6009 +/-      42.4
Perihelion:          29.74264439 +/-    0.0153
Aphelion:            49.89640386 +/-    0.0176
Period (y)              251.2767 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           17.41051368 +/-    0.0004
Ecliptic Y           24.29885987 +/-    0.0006
Ecliptic Z           -0.05266101 +/-    0.0000
Ecliptic XDOT        -0.00263651 +/-    0.0000
Ecliptic YDOT         0.00208560 +/-    0.0000
Ecliptic ZDOT         0.00103255 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.89253002 +/-    0.0006
Geocenter to KBO     29.14155359 +/-    0.0008
# Hcoef:  8.42

The following table shows the complete astrometric record for 99TR11. 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 (99TR11) followed by the observatory code and reference code for the source of the astrometry.

1999 10  07.42896  03 33 24.27   +19 04 22.9         99TR11    568  Ca7378      
1999 10  07.48706  03 33 23.98   +19 04 22.4         99TR11    568  Ca7378      
1999 10  07.62051  03 33 23.32   +19 04 21.1         99TR11    568  Ca7378      
1999 10  09.58354  03 33 13.72   +19 04 01.9   23.0R 99TR11    568  Ca6917      
1999 10  09.61509  03 33 13.55   +19 04 01.7   22.9R 99TR11    568  Ca6917      
1999 10  10.51748  03 33 08.98   +19 03 52.7   23.0R 99TR11    568  Ca6917      
1999 10  10.58385  03 33 08.67   +19 03 51.9   22.8R 99TR11    568  Ca6917      
1999 11  09.49156  03 30 04.00   +18 56 49.0   22.8R 99TR11    568  Ca7378      
1999 11  09.54296  03 30 03.65   +18 56 48.0   22.8R 99TR11    568  Ca7378      
1999 11  12.47131  03 29 43.39   +18 55 58.1   22.7R 99TR11    568  Ca7378      
1999 11  12.50545  03 29 43.13   +18 55 57.9   22.6R 99TR11    568  Ca7378      
1999 12  31.23266  03 24 42.11   +18 44 01.5   23.7R 99TR11    695  Ca9941      
1999 12  31.23976  03 24 42.07   +18 44 01.6   22.8R 99TR11    695  Ca9941      
1999 12  31.32433  03 24 41.68   +18 44 00.5   23.0R 99TR11    695  Ca9941      
1999 12  31.35510  03 24 41.50   +18 44 00.6   23.1R 99TR11    695  Ca9941      
2000 01  03.25662  03 24 29.28   +18 43 35.8   23.2R 99TR11    697  Ca8563      
2000 01  03.31573  03 24 29.13   +18 43 35.6   23.2R 99TR11    697  Ca8563      
2000 01  05.13725  03 24 21.85   +18 43 22.9   22.8R 99TR11    697  Ca8563      
2000 01  05.22196  03 24 21.50   +18 43 22.3   22.9R 99TR11    697  Ca8563      
2000 08  27.63144  03 44 03.82   +20 19 51.4   22.9R 99TR11    568  Cb9110      
2000 08  28.60367  03 44 04.23   +20 20 01.0   22.8R 99TR11    568  Cb9110      
2000 08  29.62638  03 44 04.50   +20 20 10.3   22.9R 99TR11    568  Cb9110      
2000 12  27.33730  03 34 04.813  +20 02 37.25  22.6R 99TR11    568  Cl5167      
2000 12  28.30700  03 34 00.016  +20 02 27.08  22.9R 99TR11    568  Cl6338      
2000 12  28.37573  03 33 59.667  +20 02 26.23  22.2R 99TR11    568  Cl5167      

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    -0.22       0.00     0.30
  2   0.0002     -4.11    -0.28       0.49     0.34
  3   0.0005    -13.51    -0.32       1.45     0.29
  4   0.0059   -150.27     0.16      15.13    -0.11
  5   0.0060   -152.66     0.07      15.51     0.03
  6   0.0085   -217.73    -0.18      22.17     0.23
  7   0.0086   -222.19     0.30      22.44     0.00
  8   0.0905  -2866.39     0.37     240.28    -0.11
  9   0.0907  -2871.45     0.48     240.51    -0.27
 10   0.0987  -3162.48     0.35     261.74    -0.56
 11   0.0988  -3166.11     0.19     262.44    -0.12
 12   0.2322  -7487.64     0.19     619.40     0.29
 13   0.2322  -7488.17     0.12     619.64     0.48
 14   0.2324  -7493.81    -0.11     619.96     0.19
 15   0.2325  -7496.27    -0.61     620.69     0.71
 16   0.2405  -7670.80    -0.22     640.01    -0.81
 17   0.2406  -7672.91 (   1.16)    640.35 (  -0.89)
 18   0.2456  -7776.37    -0.03     653.90    -0.35
 19   0.2458  -7781.34    -0.24     654.56    -0.32
 20   0.8904   9838.38    -0.14    2332.71    -0.31
 21   0.8930   9846.16    -0.02    2340.80    -0.23
 22   0.8958   9851.94    -0.16    2349.04    -0.45
 23   1.2236   1384.89     0.08    3259.36     0.19
 24   1.2262   1316.80     0.15    3265.46     0.35
 25   1.2264   1311.81     0.07    3265.80     0.24

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.

99TR11    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.830    39.856    39.806
ecceobj         0.253     0.254     0.252
incobj         17.096    17.096    17.096
qmin           28.882    29.365    29.295
qmax           50.481    50.013    50.041
amean          39.455    39.455    39.455
amin           39.078    39.077    39.076
amax           39.912    39.892    39.922
emean           0.220     0.216     0.216
emin            0.167     0.170     0.167
emax            0.266     0.255     0.256
imean          17.049    17.221    17.154
imin           15.072    15.953    15.848
imax           18.819    18.855    18.794
excite_mean     0.367     0.367     0.366
fracstop        1.000     1.000     1.000
cjmean          2.898     2.898     2.898

libcent 0       180.1     179.7     180.0
libamp  0        49.1      53.9      49.0
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       166.3     198.7     198.5
kozaiamp        180.0     180.0     180.0