Orbit Fit and Astrometric record for 14XC48

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: 14XC48    
# Created Fri Dec  3 02:12:57 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     54 observations of     54
# Arc:   6.80y
# First observation: 2014/12/12
#  Last observation: 2021/09/30
# Chi-squared of fit:    18.04 DOF:    102 RMS:  0.10
# Min/Max residuals:    -0.35    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.655011E-05  2.767663E-02 -4.988610E-06 -7.543116E-03  2.690523E-02 -3.330078E-03
# Covariance matrix:
  1.2851E-13 -6.6203E-14 -1.8715E-14  1.2702E-14 -6.4154E-14 -2.6627E-13
 -6.6203E-14  5.9679E-14  1.3177E-14 -1.4002E-14  1.2531E-14  2.6169E-13
 -1.8715E-14  1.3177E-14  6.7925E-14 -2.1661E-14  1.9210E-14  7.3632E-14
  1.2702E-14 -1.4002E-14 -2.1661E-14  1.2992E-14 -1.9577E-15 -7.1924E-14
 -6.4154E-14  1.2531E-14  1.9210E-14 -1.9577E-15  1.3734E-13  1.1075E-13
 -2.6627E-13  2.6169E-13  7.3632E-14 -7.1924E-14  1.1075E-13  1.3697E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -24.642712    9.162883   -0.927549   -0.137018   -0.299157  2457003.639138
# Heliocentric elements and errors
Epoch:              2457004.5000  =  2014/12/13
Mean Anomaly:          319.63013 +/-     0.015
Argument of Peri:      292.36750 +/-     0.020
Long of Asc Node:      132.92229 +/-     0.000
Inclination:            28.22383 +/-     0.000
Eccentricity:         0.13085252 +/-    0.0000
Semi-Major Axis:     41.24226201 +/-    0.0027
Time of Perihelion: 2467852.9333 +/-       9.2
Perihelion:          35.84560802 +/-    0.0030
Aphelion:            46.63891600 +/-    0.0035
Period (y)              264.8634 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.52561705 +/-    0.0005
Ecliptic Y            6.34924397 +/-    0.0001
Ecliptic Z          -15.49753463 +/-    0.0002
Ecliptic XDOT        -0.00107262 +/-    0.0000
Ecliptic YDOT         0.00267528 +/-    0.0000
Ecliptic ZDOT        -0.00055628 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.47609780 +/-    0.0004
Geocenter to KBO     37.16761755 +/-    0.0005
# Hcoef:  7.18

The following table shows the complete astrometric record for 14XC48. 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 (14XC48) followed by the observatory code and reference code for the source of the astrometry.

2014 12  12.13836  01 13 38.082  -18 57 51.34  23.3r 14XC48    W84  C~4yVS      
2014 12  12.13836  01 13 38.08   -18 57 51.3   23.3r 14XC48    W84  C~3cpY      
2014 12  15.12668  01 13 32.501  -18 56 35.13  22.8r 14XC48    W84  C~4yVS      
2014 12  15.12668  01 13 32.50   -18 56 35.1   22.9r 14XC48    W84  C~3cpZ      
2014 12  15.12805  01 13 32.494  -18 56 35.10  22.8i 14XC48    W84  C~4yVS      
2014 12  15.12805  01 13 32.49   -18 56 35.1   22.8i 14XC48    W84  C~3cpZ      
2014 12  25.08048  01 13 20.404  -18 51 28.49  23.7g 14XC48    W84  C~4yVS      
2014 12  29.07605  01 13 18.511  -18 49 04.24  22.5z 14XC48    W84  C~4yVS      
2015 08  24.39409  01 28 17.419  -18 00 29.53  22.7r 14XC48    W84  C~4yVS      
2015 08  24.39546  01 28 17.425  -18 00 29.59  22.0i 14XC48    W84  C~4yVS      
2015 09  04.35956  01 27 43.265  -18 09 43.22  22.8z 14XC48    W84  C~4yVS      
2015 10  07.22227  01 25 15.586  -18 33 51.03  22.8r 14XC48    W84  C~4yVS      
2015 10  07.22227  01 25 15.59   -18 33 51.0   22.9r 14XC48    W84  C~3cpZ      
2015 10  07.22363  01 25 15.580  -18 33 51.04  23.9g 14XC48    W84  C~4yVS      
2015 11  06.11335  01 22 42.649  -18 45 38.47  23.9g 14XC48    W84  C~4yVS      
2015 11  06.11335  01 22 42.65   -18 45 38.5   23.9g 14XC48    W84  C~3cpZ      
2015 11  06.11474  01 22 42.638  -18 45 38.60  22.5i 14XC48    W84  C~4yVS      
2015 11  06.11474  01 22 42.64   -18 45 38.6   22.6i 14XC48    W84  C~3cpZ      
2015 11  07.14022  01 22 37.738  -18 45 48.82  24.0g 14XC48    W84  C~4yVS      
2015 11  07.14022  01 22 37.74   -18 45 48.8   24.0g 14XC48    W84  C~3cpZ      
2015 11  07.14158  01 22 37.730  -18 45 48.96  22.7i 14XC48    W84  C~4yVS      
2015 11  07.14158  01 22 37.73   -18 45 48.9   22.8i 14XC48    W84  C~3cpZ      
2015 11  20.10625  01 21 40.407  -18 46 32.74  22.6z 14XC48    W84  C~4yVS      
2015 11  20.10625  01 21 40.41   -18 46 32.7   22.6z 14XC48    W84  C~3cpZ      
2016 09  30.28598  01 32 45.418  -18 11 37.55  22.8r 14XC48    W84  C~4yVS      
2016 09  30.28598  01 32 45.42   -18 11 37.5   22.9r 14XC48    W84  C~3cpZ      
2016 09  30.28736  01 32 45.412  -18 11 37.54  22.7i 14XC48    W84  C~4yVS      
2016 09  30.28736  01 32 45.41   -18 11 37.5   22.8i 14XC48    W84  C~3cpZ      
2016 09  30.28871  01 32 45.402  -18 11 37.42  23.3g 14XC48    W84  C~4yVS      
2016 09  30.28871  01 32 45.40   -18 11 37.4   23.7g 14XC48    W84  C~3cpZ      
2016 11  18.22280  01 28 41.211  -18 28 57.16  22.4z 14XC48    W84  C~4yVS      
2016 12  05.16148  01 27 39.499  -18 26 23.52  22.6i 14XC48    W84  C~4yVS      
2016 12  05.16148  01 27 39.50   -18 26 23.5   22.5i 14XC48    W84  C~3cpZ      
2016 12  05.16285  01 27 39.495  -18 26 23.44  22.8r 14XC48    W84  C~4yVS      
2016 12  05.16285  01 27 39.49   -18 26 23.4   22.8r 14XC48    W84  C~3cpZ      
2016 12  05.16421  01 27 39.474  -18 26 23.68  23.3g 14XC48    W84  C~4yVS      
2016 12  05.16421  01 27 39.48   -18 26 23.6   23.7g 14XC48    W84  C~3cpZ      
2017 11  10.14149  01 36 16.427  -18 09 41.14  22.5r 14XC48    W84  C~4yVS      
2017 11  10.14286  01 36 16.416  -18 09 41.09  22.4i 14XC48    W84  C~4yVS      
2017 11  10.14422  01 36 16.405  -18 09 41.12  24.1g 14XC48    W84  C~4yVS      
2017 11  23.03402  01 35 18.884  -18 10 05.14  22.4z 14XC48    W84  C~4yVS      
2017 11  24.10370  01 35 14.550  -18 10 00.09  22.1z 14XC48    W84  C~4yVS      
2017 11  27.06623  01 35 02.998  -18 09 39.35  22.5i 14XC48    W84  C~4yVS      
2017 12  08.06381  01 34 26.000  -18 07 09.04  22.6r 14XC48    W84  C~4yVS      
2017 12  08.06519  01 34 25.994  -18 07 09.15  23.7g 14XC48    W84  C~4yVS      
2018 10  18.30397  01 45 14.481  -17 42 12.92  23.0r 14XC48    W84  C~4yVS      
2018 10  18.30896  01 45 14.466  -17 42 12.96  24.3g 14XC48    W84  C~4yVS      
2018 10  21.17169  01 44 59.364  -17 43 34.41  22.3z 14XC48    W84  C~4yVS      
2018 11  16.02024  01 42 48.383  -17 50 22.99  22.5z 14XC48    W84  C~4yVS      
2018 11  16.23330  01 42 47.377  -17 50 23.57  22.5i 14XC48    W84  C~4yVS      
2018 11  16.23467  01 42 47.370  -17 50 23.49  22.7i 14XC48    W84  C~4yVS      
2021 09  30.413672 02 07 46.947  -16 23 56.66  22.8w 14XC48    F51  C~55TM      
2021 09  30.427243 02 07 46.914  -16 23 57.04  22.8w 14XC48    F51  C~55TM      
2021 09  30.440784 02 07 46.852  -16 23 58.03  22.6w 14XC48    F51  C~55TM      

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    -0.11       0.00     0.08
     2   0.0000      0.00    -0.08       0.00     0.04
     3   0.0082      0.00     0.08       0.00    -0.01
     4   0.0082      0.00     0.07       0.00     0.02
     5   0.0082      0.00     0.01       0.00    -0.02
     6   0.0082      0.00    -0.05       0.00    -0.02
     7   0.0354      0.00    -0.19       0.00     0.04
     8   0.0464      0.00     0.07       0.00     0.06
     9   0.6989      0.00    -0.15       0.00    -0.08
    10   0.6989      0.00    -0.00       0.00    -0.07
    11   0.7289      0.00    -0.14       0.00    -0.12
    12   0.8188      0.00     0.09       0.00     0.01
    13   0.8188      0.00     0.03       0.00    -0.02
    14   0.8189      0.00     0.04       0.00     0.02
    15   0.9007      0.00     0.13       0.00     0.09
    16   0.9007      0.00     0.14       0.00     0.06
    17   0.9007      0.00     0.10       0.00    -0.03
    18   0.9007      0.00     0.07       0.00    -0.03
    19   0.9035      0.00     0.11       0.00     0.13
    20   0.9035      0.00     0.08       0.00     0.11
    21   0.9035      0.00     0.06       0.00     0.04
    22   0.9035      0.00     0.06       0.00    -0.02
    23   0.9390      0.00     0.07       0.00     0.03
    24   0.9390      0.00     0.03       0.00    -0.01
    25   1.8019      0.00     0.03       0.00    -0.02
    26   1.8019      0.00     0.00       0.00    -0.07
    27   1.8019      0.00    -0.01       0.00     0.03
    28   1.8019      0.00     0.02       0.00    -0.01
    29   1.8019      0.00    -0.06       0.00     0.19
    30   1.8019      0.00    -0.03       0.00     0.17
    31   1.9359      0.00     0.04       0.00    -0.05
    32   1.9823      0.00     0.03       0.00    -0.03
    33   1.9823      0.00     0.02       0.00    -0.05
    34   1.9823      0.00    -0.06       0.00     0.04
    35   1.9823      0.00     0.02       0.00     0.00
    36   1.9823      0.00    -0.14       0.00    -0.18
    37   1.9823      0.00    -0.23       0.00    -0.26
    38   2.9131      0.00     0.09       0.00     0.14
    39   2.9131      0.00     0.02       0.00     0.20
    40   2.9131      0.00    -0.04       0.00     0.18
    41   2.9484      0.00    -0.07       0.00     0.09
    42   2.9513      0.00    -0.10       0.00    -0.19
    43   2.9594      0.00    -0.00       0.00    -0.08
    44   2.9895      0.00     0.03       0.00     0.02
    45   2.9895      0.00     0.00       0.00    -0.12
    46   3.8499      0.00     0.06       0.00    -0.03
    47   3.8499      0.00     0.24       0.00     0.08
    48   3.8577      0.00     0.06       0.00     0.06
    49   3.9285      0.00     0.04       0.00    -0.25
    50   3.9291      0.00    -0.01       0.00    -0.09
    51   3.9291      0.00    -0.02       0.00    -0.01
    52   6.8016      0.00    -0.35       0.00     0.03
    53   6.8016      0.00     0.12       0.00     0.24
    54   6.8016      0.00     0.14       0.00    -0.17

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.

14XC48    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.599    41.599    41.599
ecceobj         0.135     0.135     0.135
incobj         28.182    28.182    28.182
qmin           35.293    35.283    35.294
qmax           47.691    47.644    47.675
amean          41.344    41.345    41.344
amin           41.006    41.007    41.006
amax           41.713    41.708    41.709
emean           0.125     0.125     0.125
emin            0.109     0.108     0.108
emax            0.144     0.144     0.144
imean          26.932    26.934    26.934
imin           26.424    26.421    26.421
imax           27.397    27.400    27.397
excite_mean     0.470     0.470     0.470
fracstop        1.000     1.000     1.000
cjmean          2.801     2.801     2.801

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       176.7     176.7     176.7
kozaiamp        180.0     180.0     179.9