Orbit Fit and Astrometric record for 13TB188

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: 13TB188   
# Created Tue Dec  7 02:12:11 2021
# Orbit generated from Bernstein formalism
# Fitting     55 observations of     56
# Arc:   4.14y
# First observation: 2013/10/04
#  Last observation: 2017/11/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.000331   0.036179  -0.000059   0.004441   0.030722   0.000000
# Chi-squared of fit:    18.09 DOF:    104 RMS:  0.10
# Min/Max residuals:    -0.37    0.29
# Exact a, adot, b, bdot, g, gdot:
  2.018751E-05  3.590389E-02  2.357303E-06  4.408685E-03  3.087993E-02 -8.830306E-04
# Covariance matrix:
  1.6562E-13 -1.0502E-13  1.2460E-15 -8.8291E-15  4.6222E-14 -5.9286E-13
 -1.0502E-13  2.8229E-13 -1.8780E-14  3.7466E-14  1.3528E-13  2.2765E-12
  1.2460E-15 -1.8780E-14  1.0751E-13 -3.9197E-14 -1.6519E-14 -1.6058E-13
 -8.8291E-15  3.7466E-14 -3.9197E-14  2.2079E-14  2.0717E-14  3.2113E-13
  4.6222E-14  1.3528E-13 -1.6519E-14  2.0717E-14  2.2551E-13  1.1500E-12
 -5.9286E-13  2.2765E-12 -1.6058E-13  3.2113E-13  1.1500E-12  1.9520E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -13.675146   29.845219    0.326361   -0.223451   -0.918828  2456569.706878
# Heliocentric elements and errors
Epoch:              2456560.5000  =  2013/09/25
Mean Anomaly:          349.72765 +/-     0.034
Argument of Peri:      311.19282 +/-     0.049
Long of Asc Node:       91.66893 +/-     0.001
Inclination:            14.92449 +/-     0.000
Eccentricity:         0.16345258 +/-    0.0001
Semi-Major Axis:     39.63754714 +/-    0.0026
Time of Perihelion: 2459161.4133 +/-       8.7
Perihelion:          33.15868763 +/-    0.0030
Aphelion:            46.11640665 +/-    0.0037
Period (y)              249.5562 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.27416943 +/-    0.0004
Ecliptic Y           15.84959875 +/-    0.0002
Ecliptic Z           -7.65595335 +/-    0.0001
Ecliptic XDOT        -0.00157618 +/-    0.0000
Ecliptic YDOT         0.00276786 +/-    0.0000
Ecliptic ZDOT         0.00039845 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.30543588 +/-    0.0004
Geocenter to KBO     32.38349626 +/-    0.0005
# Hcoef:  7.99

The following table shows the complete astrometric record for 13TB188. 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 (13TB188) followed by the observatory code and reference code for the source of the astrometry.

2013 10  04.20610  02 10 09.037  -01 24 26.75  22.4g 13TB188   W84  C~4yRE      
2013 10  04.20610  02 10 09.02   -01 24 26.9   23.6g 13TB188   W84  C~3clR      
2013 11  04.08027  02 07 17.32   -01 39 30.7   23.3r 13TB188   W84  C~3clR      
2013 11  04.14330  02 07 16.96   -01 39 32.1         13TB188   W84  C~3clR      
2013 11  04.22553  02 07 16.50   -01 39 33.9         13TB188   W84  C~3clR      
2013 11  08.25027  02 06 53.900  -01 40 59.10  24.2g 13TB188   W84  C~4yRE      
2013 11  08.25167  02 06 53.902  -01 40 59.20  23.2r 13TB188   W84  C~4yRE      
2013 11  08.25167  02 06 53.90   -01 40 59.2   23.3r 13TB188   W84  C~3clR      
2013 11  13.17529  02 06 26.887  -01 42 29.73  22.6z 13TB188   W84  C~4yRE      
2014 08  19.38618  02 20 02.375  -00 02 51.69  23.2i 13TB188   W84  C~4yRE      
2014 08  19.38618  02 20 02.38   -00 02 51.7   23.2i 13TB188   W84  C~3clR      
2014 10  01.35954  02 17 47.435  -00 25 50.74  23.1i 13TB188   W84  C~4yRE      
2014 10  21.25060  02 16 01.256  -00 36 28.78  23.6r 13TB188   W84  C~4yRE      
2014 10  21.25060  02 16 01.26   -00 36 28.8   23.5r 13TB188   W84  C~3clR      
2014 12  16.13208  02 11 19.630  -00 49 06.42  23.6g 13TB188   W84  C~4yRE      
2014 12  16.13208  02 11 19.63   -00 49 06.4   24.2g 13TB188   W84  C~3clR      
2014 12  16.13344  02 11 19.602  -00 49 06.38  23.3r 13TB188   W84  C~4yRE      
2014 12  16.13344  02 11 19.60   -00 49 06.4   23.4r 13TB188   W84  C~3clR      
2014 12  16.13481  02 11 19.602  -00 49 06.27  22.7i 13TB188   W84  C~4yRE      
2014 12  16.13481  02 11 19.60   -00 49 06.3   22.8i 13TB188   W84  C~3clR      
2015 01  16.06633  02 10 26.439  -00 39 59.24  22.7r 13TB188   W84  C~4yRE      
2015 01  16.06633  02 10 26.44   -00 39 59.3   23.2r 13TB188   W84  C~3clR      
2015 01  20.04740  02 10 27.509  -00 37 59.42  22.8i 13TB188   W84  C~4yRE      
2016 09  10.36303  02 33 53.602  +01 38 51.79  23.2r 13TB188   W84  C~4yRE      
2016 09  10.36303  02 33 53.60   +01 38 51.8   23.2r 13TB188   W84  C~3clR      
2016 09  10.36441  02 33 53.627  +01 38 51.64  23.5g 13TB188   W84  C~4yRE      
2016 11  04.16975  02 29 26.856  +01 11 15.62  24.1g 13TB188   W84  C~4yRE      
2016 11  04.17111  02 29 26.854  +01 11 15.30  22.8r 13TB188   W84  C~4yRE      
2016 11  04.17111  02 29 26.86   +01 11 15.3   23.1r 13TB188   W84  C~3clR      
2016 11  04.17248  02 29 26.839  +01 11 15.34  23.1i 13TB188   W84  C~4yRE      
2016 11  04.17248  02 29 26.84   +01 11 15.3   23.3i 13TB188   W84  C~3clR      
2016 11  04.19034  02 29 26.757  +01 11 14.85  23.8g 13TB188   W84  C~4yRE      
2016 11  04.19173  02 29 26.734  +01 11 14.84  23.2r 13TB188   W84  C~4yRF      
2016 11  04.19173  02 29 26.73   +01 11 14.9   23.2r 13TB188   W84  C~3clR      
2016 11  04.19312  02 29 26.726  +01 11 14.92  22.9i 13TB188   W84  C~4yRF      
2016 11  04.19312  02 29 26.72   +01 11 14.9   22.9i 13TB188   W84  C~3clR      
2016 11  04.19864  02 29 26.690  +01 11 14.87  24.5g 13TB188   W84  C~4yRF      
2016 11  04.19864  02 29 26.69   +01 11 14.9   24.4g 13TB188   W84  C~3clR      
2016 11  04.20001  02 29 26.681  +01 11 14.65  23.0r 13TB188   W84  C~4yRF      
2016 11  04.20001  02 29 26.68   +01 11 14.7   23.0r 13TB188   W84  C~3clR      
2016 11  04.20137  02 29 26.680  +01 11 14.65  22.6i 13TB188   W84  C~4yRF      
2016 11  04.20137  02 29 26.68   +01 11 14.7   22.6i 13TB188   W84  C~3clR      
2016 11  04.20274  02 29 26.657  +01 11 14.66  23.8g 13TB188   W84  C~4yRF      
2016 11  04.20412  02 29 26.658  +01 11 14.58  23.2r 13TB188   W84  C~4yRF      
2016 11  04.20412  02 29 26.66   +01 11 14.6   23.2r 13TB188   W84  C~3clR      
2016 11  04.20551  02 29 26.649  +01 11 14.59  22.8i 13TB188   W84  C~4yRF      
2016 11  04.20551  02 29 26.65   +01 11 14.6   22.8i 13TB188   W84  C~3clR      
2016 11  07.17566  02 29 09.484  +01 10 07.31  23.3z 13TB188   W84  C~4yRF      
2016 11  10.15711  02 28 52.363  +01 09 04.65  22.7z 13TB188   W84  C~4yRF      
2016 11  10.16381  02 28 52.324  +01 09 04.50  22.8z 13TB188   W84  C~4yRF      
2016 11  10.17275  02 28 52.260  +01 09 04.48  22.7z 13TB188   W84  C~4yRF      
2016 11  10.17497  02 28 52.258  +01 09 04.36  22.7z 13TB188   W84  C~4yRF      
2016 11  25.11978  02 27 30.175  +01 05 06.39  23.0z 13TB188   W84  C~4yRF      
2016 11  25.12200  02 27 30.177  +01 05 06.07  22.8z 13TB188   W84  C~4yRF      
2017 11  01.17828  02 37 10.878  +02 09 36.46  22.3z 13TB188   W84  C~4yRF      
2017 11  23.15019  02 35 05.587  +02 02 27.70  23.0r 13TB188   W84  C~4yRF      

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    -0.37       0.00    -0.02
     2   0.0000      0.29    -0.08       0.05     0.03
     3   0.0845  -2728.48    -0.04      39.84     0.04
     4   0.0847  -2734.03    -0.01      40.39     0.04
     5   0.0849  -2741.12     0.19      41.08     0.01
     6   0.0959  -3088.64    -0.05      77.94     0.05
     7   0.0959  -3088.65     0.07      77.84    -0.07
     8   0.0959  -3088.68     0.04      77.85    -0.06
     9   0.1094  -3500.18     0.03     132.50     0.09
    10   0.8739  10050.79     0.03    1520.61     0.03
    11   0.8739  10050.72    -0.04    1520.64     0.07
    12   0.9915   7670.21     0.11     925.31     0.01
    13   1.0460   5953.37     0.15     876.78     0.03
    14   1.0460   5953.32     0.10     876.82     0.07
    15   1.1990   1725.88     0.19    1624.70    -0.17
    16   1.1990   1725.88     0.20    1624.72    -0.15
    17   1.1990   1725.46    -0.16    1624.87    -0.03
    18   1.1990   1725.50    -0.13    1624.88    -0.02
    19   1.1990   1725.49    -0.06    1624.97     0.04
    20   1.1990   1725.53    -0.02    1624.99     0.05
    21   1.2837   1165.96    -0.01    2413.65    -0.05
    22   1.2837   1165.96    -0.01    2413.71     0.01
    23   1.2946   1222.39 (   0.45)   2520.65 (   0.15)
    24   2.9354  23958.78    -0.11    2953.90     0.00
    25   2.9354  23958.80    -0.09    2953.88    -0.02
    26   2.9354  23959.11     0.29    2953.61    -0.27
    27   3.0855  19584.14    -0.00    2775.71     0.24
    28   3.0855  19584.09     0.07    2775.39    -0.09
    29   3.0855  19584.00    -0.02    2775.42    -0.06
    30   3.0855  19583.80    -0.09    2775.49    -0.00
    31   3.0855  19583.80    -0.09    2775.53     0.04
    32   3.0855  19582.47     0.21    2775.50    -0.15
    33   3.0855  19582.10    -0.03    2775.68     0.03
    34   3.0855  19582.14     0.01    2775.61    -0.05
    35   3.0855  19581.96    -0.04    2775.74     0.07
    36   3.0855  19582.05     0.05    2775.72     0.05
    37   3.0855  19581.53     0.04    2775.89     0.18
    38   3.0855  19581.52     0.03    2775.86     0.15
    39   3.0855  19581.32    -0.05    2775.75     0.03
    40   3.0855  19581.32    -0.05    2775.70    -0.03
    41   3.0855  19581.32     0.08    2775.75     0.02
    42   3.0855  19581.31     0.06    2775.71    -0.03
    43   3.0855  19580.98    -0.14    2775.84     0.09
    44   3.0856  19581.00     0.01    2775.76     0.00
    45   3.0856  19580.97    -0.02    2775.76    -0.01
    46   3.0856  19580.86    -0.00    2775.82     0.04
    47   3.0856  19580.84    -0.02    2775.81     0.04
    48   3.0937  19313.66    -0.03    2801.50    -0.20
    49   3.1019  19048.78     0.02    2831.32    -0.08
    50   3.1019  19048.17     0.02    2831.38    -0.09
    51   3.1019  19047.26    -0.10    2831.70     0.12
    52   3.1019  19047.19     0.03    2831.59    -0.00
    53   3.1428  17799.85    -0.17    3033.40     0.08
    54   3.1428  17799.77    -0.08    3033.09    -0.27
    55   4.0766  27425.05     0.06    3675.29     0.10
    56   4.1367  25482.72     0.02    3919.57     0.06

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.

13TB188    quality flag:3

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

axisobj        39.853    39.861    39.845
ecceobj         0.167     0.167     0.167
incobj         14.933    14.933    14.933
qmin           32.558    32.609    32.602
qmax           46.741    46.781    46.957
amean          39.457    39.457    39.457
amin           39.026    39.008    39.012
amax           39.939    39.946    39.949
emean           0.153     0.153     0.154
emin            0.130     0.129     0.131
emax            0.173     0.173     0.175
imean          13.226    13.233    13.215
imin           12.560    12.651    12.623
imax           13.927    13.940    13.897
excite_mean     0.275     0.275     0.276
fracstop        1.000     1.000     1.000
cjmean          2.966     2.966     2.966

libcent 0       180.2     180.3     180.8
libamp  0        90.5      94.3      93.6
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       179.0     180.7     181.1
kozaiamp        179.9     180.0     180.0