Orbit Fit and Astrometric record for 10TT191

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: 10TT191   
# Created Thu Feb 21 02:09:05 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   23 observations of   23
# Arc:  19.15y
# First observation: 1999/10/14
#  Last observation: 2018/12/09
# Chi-squared of fit:    52.02 DOF:   40 RMS:  0.27
# Min/Max residuals:    -0.91    0.45
# Exact a, adot, b, bdot, g, gdot:
  1.832234E-05  3.566772E-02 -7.633414E-07 -2.140102E-03  3.274141E-02  2.090975E-03
# Covariance matrix:
  4.8203E-13 -6.8292E-14 -1.0216E-14  2.9956E-15  9.4565E-14 -6.5222E-14
 -6.8292E-14  1.5113E-14  2.8865E-15 -8.4595E-16 -1.4982E-14  1.8409E-14
 -1.0216E-14  2.8865E-15  3.2815E-13 -2.3809E-14 -1.1254E-14  4.4909E-15
  2.9956E-15 -8.4595E-16 -2.3809E-14  2.0894E-15  3.3336E-15 -1.3181E-15
  9.4565E-14 -1.4982E-14 -1.1254E-14  3.3336E-15  9.8268E-13 -7.3279E-14
 -6.5222E-14  1.8409E-14  4.4909E-15 -1.3181E-15 -7.3279E-14  2.8723E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.661368   32.608291    0.205687    0.044735   -0.967103  2451465.868315
# Heliocentric elements and errors
Epoch:              2451466.5000  =  1999/10/15
Mean Anomaly:          124.61450 +/-    26.305
Argument of Peri:       12.27492 +/-     0.001
Long of Asc Node:      249.37745 +/-     0.000
Inclination:             4.26575 +/-     0.000
Eccentricity:         0.06549010 +/-    0.0006
Semi-Major Axis:     30.30708453 +/-    0.0057
Time of Perihelion: 2430371.4407 +/-    4452.9
Perihelion:          28.32227054 +/-    0.0189
Aphelion:            32.29189852 +/-    0.0191
Period (y)              166.8493 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           26.63395987 +/-    0.0021
Ecliptic Y           16.79241137 +/-    0.0013
Ecliptic Z            1.41815388 +/-    0.0001
Ecliptic XDOT        -0.00145771 +/-    0.0000
Ecliptic YDOT         0.00261911 +/-    0.0000
Ecliptic ZDOT        -0.00017057 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.51765112 +/-    0.0019
Geocenter to KBO     30.54236305 +/-    0.0025
# Hcoef:  7.90

The following table shows the complete astrometric record for 10TT191. 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 (10TT191) followed by the observatory code and reference code for the source of the astrometry.

1999 10  14.367572 01 57 51.86   +14 52 33.9   22.5V 10TT191   645  C~2POO      
1999 10  14.368401 01 57 51.86   +14 52 33.9   22.2V 10TT191   645  C~2POO      
1999 10  14.370889 01 57 51.87   +14 52 33.8   22.5V 10TT191   645  C~2POO      
2007 11  14.467276 03 00 00.13   +18 42 47.4         10TT191   568  C~1tfI      
2007 11  15.413367 02 59 54.05   +18 42 20.1         10TT191   568  C~1tfI      
2007 11  15.415838 02 59 54.03   +18 42 20.3         10TT191   568  C~1tfI      
2010 10  09.46094  03 28 22.78   +20 06 24.3   23.4w 10TT191   F51  C~1tfI      
2010 10  09.47656  03 28 22.70   +20 06 24.0   23.4w 10TT191   F51  C~1tfI      
2010 11  07.48047  03 25 33.87   +19 56 04.9   23.2w 10TT191   F51  C~1tfI      
2010 11  07.49219  03 25 33.78   +19 56 04.3   22.9w 10TT191   F51  C~1tfI      
2010 11  07.50781  03 25 33.70   +19 56 04.1   23.3w 10TT191   F51  C~1tfI      
2010 11  07.52344  03 25 33.60   +19 56 03.7   23.2w 10TT191   F51  C~1tfI      
2011 10  24.54297  03 35 21.60   +20 21 44.6   23.3w 10TT191   F51  C~1tfI      
2011 10  24.55859  03 35 21.52   +20 21 44.2   23.5w 10TT191   F51  C~1tfI      
2012 10  22.54688  03 43 48.96   +20 40 48.1   22.9w 10TT191   F51  C~1tfI      
2012 10  22.55859  03 43 48.89   +20 40 47.7   22.9w 10TT191   F51  C~1tfI      
2012 10  22.58984  03 43 48.72   +20 40 47.0   22.6w 10TT191   F51  C~1tfI      
2015 11  07.169201 04 07 26.39   +21 23 16.7         10TT191   696  C~1tfI      
2015 11  07.287234 04 07 25.57   +21 23 14.0         10TT191   696  C~1tfI      
2015 11  19.621967 04 06 05.39   +21 19 23.4   22.0R 10TT191   O44  C~1tfI      
2015 11  19.655700 04 06 05.14   +21 19 23.4   21.8R 10TT191   O44  C~1tfI      
2018 12  09.382210 04 29 02.730  +21 48 01.86  23.1r 10TT191   568              
2018 12  09.443780 04 29 02.309  +21 48 01.19  23.8r 10TT191   568              

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    -0.20       0.00    -0.13
  2   0.0000      0.00    -0.12       0.00    -0.10
  3   0.0000      0.00     0.26       0.00    -0.12
  4   8.0851      0.00    -0.12       0.00     0.26
  5   8.0877      0.00     0.15       0.00     0.01
  6   8.0877      0.00     0.10       0.00     0.28
  7  10.9873      0.00    -0.15       0.00     0.03
  8  10.9873      0.00    -0.19       0.00    -0.00
  9  11.0667      0.00     0.13       0.00     0.20
 10  11.0667      0.00    -0.06       0.00    -0.11
 11  11.0668      0.00     0.28       0.00     0.08
 12  11.0668      0.00     0.33       0.00     0.06
 13  12.0279      0.00    -0.10       0.00     0.03
 14  12.0279      0.00     0.09       0.00    -0.05
 15  13.0244      0.00     0.03       0.00     0.24
 16  13.0245      0.00    -0.01       0.00     0.06
 17  13.0246      0.00     0.14       0.00    -0.05
 18  16.0652      0.00     0.17       0.00    -0.06
 19  16.0655      0.00    -0.91       0.00    -0.69
 20  16.0993      0.00    -0.22       0.00    -0.44
 21  16.0994      0.00    -0.54       0.00     0.21
 22  19.1540      0.00     0.44       0.00    -0.03
 23  19.1542      0.00     0.45       0.00     0.29

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.

10TT191    quality flag:3

Type:            1:1       1:1       1:1

axisobj        30.303    30.303    30.303
ecceobj         0.065     0.065     0.065
incobj          4.265     4.265     4.265
qmin           27.148    27.183    27.166
qmax           33.219    33.181    33.173
amean          30.111    30.110    30.111
amin           29.777    29.777    29.776
amax           30.495    30.498    30.496
emean           0.069     0.069     0.069
emin            0.044     0.044     0.044
emax            0.092     0.093     0.092
imean           5.879     5.879     5.879
imin            5.526     5.527     5.527
imax            6.192     6.194     6.193
excite_mean     0.124     0.124     0.124
fracstop        1.000     1.000     1.000
cjmean          2.987     2.987     2.987

libcent 0        66.4      66.3      66.3
libamp  0        28.2      28.2      27.9
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       180.0     179.9     180.0
kozaiamp        180.0     180.0     180.0