Orbit Fit and Astrometric record for 14YT72

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: 14YT72    
# Created Thu Dec  9 02:13:05 2021
# Orbit generated from Bernstein formalism
# Fitting     41 observations of     41
# Arc:   3.95y
# First observation: 2014/12/16
#  Last observation: 2018/11/29
Preliminary a, adot, b, bdot, g, gdot:
  -0.000440   0.027459   0.000028  -0.001301   0.026308   0.000000
# Chi-squared of fit:    15.41 DOF:     76 RMS:  0.11
# Min/Max residuals:    -0.30    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.645117E-05  2.663310E-02 -4.163082E-07 -1.271981E-03  2.545126E-02 -4.194743E-03
# Covariance matrix:
  2.1236E-13 -2.0693E-13 -1.0152E-14  1.3206E-14 -5.8251E-14 -1.4351E-12
 -2.0693E-13  3.1793E-13  9.2604E-15 -2.7959E-14  2.6011E-14  2.4945E-12
 -1.0152E-14  9.2604E-15  1.0474E-13 -4.1416E-14  1.4352E-14  8.6602E-14
  1.3206E-14 -2.7959E-14 -4.1416E-14  2.8114E-14  4.6691E-15 -2.3402E-13
 -5.8251E-14  2.6011E-14  1.4352E-14  4.6691E-15  1.2214E-13  2.9004E-13
 -1.4351E-12  2.4945E-12  8.6602E-14 -2.3402E-13  2.9004E-13  2.1283E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -31.795932    0.680067   -0.976214   -0.063273   -0.102440  2457007.589328
# Heliocentric elements and errors
Epoch:              2457000.5000  =  2014/12/09
Mean Anomaly:          319.70776 +/-     0.025
Argument of Peri:      322.82868 +/-     0.043
Long of Asc Node:       95.92341 +/-     0.001
Inclination:            31.74480 +/-     0.000
Eccentricity:         0.17747385 +/-    0.0001
Semi-Major Axis:     44.73586860 +/-    0.0034
Time of Perihelion: 2469232.6026 +/-       7.4
Perihelion:          36.79642198 +/-    0.0070
Aphelion:            52.67531522 +/-    0.0076
Period (y)              299.2210 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.49808278 +/-    0.0005
Ecliptic Y            1.37552123 +/-    0.0000
Ecliptic Z          -20.70221046 +/-    0.0003
Ecliptic XDOT        -0.00049367 +/-    0.0000
Ecliptic YDOT         0.00285423 +/-    0.0000
Ecliptic ZDOT         0.00012156 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.40298372 +/-    0.0004
Geocenter to KBO     39.29078206 +/-    0.0005
# Hcoef:  7.22

The following table shows the complete astrometric record for 14YT72. 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 (14YT72) followed by the observatory code and reference code for the source of the astrometry.

2014 12  16.08855  00 57 45.605  -28 38 47.43  23.9g 14YT72    W84  C~4yVW      
2014 12  16.08991  00 57 45.59   -28 38 47.2   23.0r 14YT72    W84  C~3cpk      
2015 01  13.05089  00 57 51.287  -28 13 57.15  23.4i 14YT72    W84  C~4yVW      
2015 01  13.05226  00 57 51.284  -28 13 56.95  22.8r 14YT72    W84  C~4yVW      
2015 01  13.05226  00 57 51.28   -28 13 57.0   22.9r 14YT72    W84  C~3cpk      
2015 01  13.06902  00 57 51.29   -28 13 56.0   23.6g 14YT72    W84  C~3cpk      
2015 10  18.18083  01 07 56.015  -28 15 16.61  23.4r 14YT72    W84  C~4yVW      
2015 10  18.18221  01 07 56.010  -28 15 16.76  23.3g 14YT72    W84  C~4yVW      
2015 10  18.18221  01 07 56.01   -28 15 16.8   24.1g 14YT72    W84  C~3cpk      
2015 11  08.17513  01 06 09.054  -28 16 56.13  23.4g 14YT72    W84  C~4yVW      
2015 11  15.09511  01 05 38.127  -28 15 47.62  22.3r 14YT72    W84  C~4yVW      
2015 11  15.09511  01 05 38.13   -28 15 47.5   22.8r 14YT72    W84  C~3cpk      
2015 11  16.15329  01 05 33.686  -28 15 32.31  23.5i 14YT72    W84  C~4yVW      
2015 11  18.10175  01 05 25.664  -28 15 01.55  22.6z 14YT72    W84  C~4yVW      
2015 12  01.14386  01 04 39.567  -28 09 56.44  23.0r 14YT72    W84  C~4yVW      
2015 12  01.14386  01 04 39.57   -28 09 56.4   22.9r 14YT72    W84  C~3cpk      
2015 12  01.14523  01 04 39.551  -28 09 56.39  22.9i 14YT72    W84  C~4yVW      
2015 12  01.14523  01 04 39.55   -28 09 56.4   23.0i 14YT72    W84  C~3cpk      
2015 12  04.04490  01 04 31.274  -28 08 25.84  23.1r 14YT72    W84  C~4yVW      
2015 12  04.04490  01 04 31.27   -28 08 25.8   23.2r 14YT72    W84  C~3cpk      
2016 08  16.33426  01 18 55.106  -26 53 37.03  22.5i 14YT72    W84  C~4yVW      
2016 08  16.33426  01 18 55.10   -26 53 37.1   23.2i 14YT72    W84  C~3cpk      
2016 08  26.38720  01 18 26.58   -27 02 16.0   23.0i 14YT72    W84  C~3cpk      
2016 08  26.38858  01 18 26.59   -27 02 16.0   22.9r 14YT72    W84  C~3cpk      
2016 08  30.31306  01 18 13.115  -27 05 33.39  24.1g 14YT72    W84  C~4yVW      
2016 08  30.31306  01 18 13.11   -27 05 33.4   24.3g 14YT72    W84  C~3cpk      
2016 10  09.08875  01 15 05.342  -27 31 32.83  22.4z 14YT72    W84  C~4yVW      
2016 11  04.10858  01 12 48.136  -27 36 45.38  23.4r 14YT72    W84  C~4yVW      
2016 11  04.10858  01 12 48.14   -27 36 45.4   23.5r 14YT72    W84  C~3cpk      
2016 11  04.10995  01 12 48.125  -27 36 45.30  24.1g 14YT72    W84  C~4yVW      
2016 11  04.10995  01 12 48.13   -27 36 45.3   24.2g 14YT72    W84  C~3cpk      
2017 10  30.26698  01 19 35.312  -26 54 39.84  22.7z 14YT72    W84  C~4yVW      
2017 11  26.05273  01 17 34.088  -26 50 44.51  23.3z 14YT72    W84  C~4yVW      
2017 12  07.04713  01 16 58.933  -26 45 33.52  24.3g 14YT72    W84  C~4yVW      
2017 12  09.03524  01 16 53.716  -26 44 25.24  23.3i 14YT72    W84  C~4yVW      
2017 12  11.15302  01 16 48.592  -26 43 08.34  23.0g 14YT72    W84  C~4yVW      
2018 10  01.34842  01 28 30.897  -26 01 06.28  22.4z 14YT72    W84  C~4yVW      
2018 10  01.34979  01 28 30.875  -26 01 06.42  22.9i 14YT72    W84  C~4yVW      
2018 11  16.05291  01 24 34.062  -26 10 42.87  23.0i 14YT72    W84  C~4yVW      
2018 11  29.14311  01 23 40.994  -26 06 52.10  23.2r 14YT72    W84  C~4yVW      
2018 11  29.14449  01 23 40.988  -26 06 51.99  23.9g 14YT72    W84  C~4yVW      

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     0.02       0.00    -0.08
     2   0.0000     -0.07    -0.06       0.29     0.15
     3   0.0766    742.38     0.11    1294.41    -0.08
     4   0.0766    742.37     0.03    1294.59     0.04
     5   0.0766    742.44     0.10    1294.61     0.06
     6   0.0766    742.94    -0.19    1295.42     0.13
     7   0.8380   7793.58     0.06   -2475.01     0.05
     8   0.8380   7793.43     0.01   -2475.15    -0.11
     9   0.8380   7793.45     0.03   -2475.11    -0.08
    10   0.8955   6498.03    -0.03   -1897.55     0.22
    11   0.9145   6168.84    -0.20   -1645.45    -0.03
    12   0.9145   6168.75    -0.30   -1645.53    -0.12
    13   0.9174   6124.00     0.15   -1604.53    -0.03
    14   0.9227   6044.60     0.01   -1527.74     0.09
    15   0.9584   5647.69     0.12    -973.26    -0.09
    16   0.9584   5647.75     0.18    -973.25    -0.07
    17   0.9584   5647.51    -0.03    -973.12    -0.01
    18   0.9584   5647.53    -0.01    -973.12    -0.01
    19   0.9663   5592.77    -0.01    -841.89     0.05
    20   0.9663   5592.79     0.02    -841.95    -0.01
    21   1.6680  17874.31    -0.14   -2405.99     0.16
    22   1.6680  17874.42    -0.04   -2405.97     0.18
    23   1.6955  17283.27     0.01   -2671.66    -0.03
    24   1.6956  17283.38     0.21   -2671.72    -0.07
    25   1.7063  17027.95    -0.16   -2755.67    -0.02
    26   1.7063  17028.01    -0.09   -2755.70    -0.04
    27   1.8152  14065.69     0.28   -2896.58    -0.25
    28   1.8864  12309.50     0.01   -2287.79    -0.10
    29   1.8864  12309.46    -0.02   -2287.75    -0.06
    30   1.8864  12309.43     0.02   -2287.64     0.01
    31   1.8864  12309.37    -0.04   -2287.61     0.04
    32   2.8725  18315.40    -0.21   -2726.65    -0.04
    33   2.9458  17007.42    -0.13   -1721.57    -0.01
    34   2.9759  16746.59     0.15   -1218.60     0.13
    35   2.9814  16718.66    -0.07   -1124.60     0.01
    36   2.9872  16696.04     0.13   -1023.65    -0.16
    37   3.7926  26244.36     0.14   -3550.22    -0.03
    38   3.7926  26244.03    -0.08   -3550.19    -0.01
    39   3.9178  23153.23     0.02   -2429.56     0.03
    40   3.9536  22643.11    -0.03   -1868.76     0.05
    41   3.9536  22643.09     0.00   -1868.63     0.12

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.

14YT72    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.168    45.178    45.159
ecceobj         0.182     0.182     0.182
incobj         31.756    31.756    31.756
qmin           35.787    35.814    35.802
qmax           54.453    54.384    54.406
amean          44.910    44.909    44.892
amin           44.520    44.535    44.516
amax           45.352    45.343    45.320
emean           0.182     0.182     0.182
emin            0.165     0.165     0.166
emax            0.201     0.200     0.201
imean          30.065    30.053    30.052
imin           29.639    29.641    29.624
imax           30.448    30.424    30.444
excite_mean     0.533     0.533     0.533
fracstop        1.000     1.000     1.000
cjmean          2.750     2.750     2.750

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       175.8     177.0     175.9
kozaiamp        180.0     180.0     180.0