Orbit Fit and Astrometric record for 14SM373

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: 14SM373   
# Created Fri Dec  3 02:12:38 2021
# Orbit generated from Bernstein formalism
# Fitting     39 observations of     39
# Arc:   4.17y
# First observation: 2014/09/30
#  Last observation: 2018/12/02
Preliminary a, adot, b, bdot, g, gdot:
   0.000443   0.028601  -0.000086   0.000781   0.026698   0.000000
# Chi-squared of fit:     9.92 DOF:     72 RMS:  0.09
# Min/Max residuals:    -0.28    0.22
# Exact a, adot, b, bdot, g, gdot:
  1.706686E-05  2.891738E-02  4.685001E-07  7.844518E-04  2.659547E-02  1.562688E-03
# Covariance matrix:
  2.3060E-13 -1.5333E-13 -4.3318E-15 -5.9218E-15  5.5808E-14 -1.0657E-12
 -1.5333E-13  2.0751E-13 -1.1288E-14  1.2945E-14  2.8657E-14  1.8753E-12
 -4.3318E-15 -1.1288E-14  1.3378E-13 -5.0257E-14 -2.1130E-14 -1.2014E-13
 -5.9218E-15  1.2945E-14 -5.0257E-14  2.7138E-14  4.7664E-15  1.3434E-13
  5.5808E-14  2.8657E-14 -2.1130E-14  4.7664E-15  1.3374E-13  3.1910E-13
 -1.0657E-12  1.8753E-12 -1.2014E-13  1.3434E-13  3.1910E-13  1.9397E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -26.024017   19.685357    0.225303   -0.429054   -0.879127  2456930.749808
# Heliocentric elements and errors
Epoch:              2456930.5000  =  2014/09/30
Mean Anomaly:           14.02125 +/-     0.039
Argument of Peri:      253.21969 +/-     0.056
Long of Asc Node:      106.25047 +/-     0.001
Inclination:            25.41756 +/-     0.000
Eccentricity:         0.16093445 +/-    0.0001
Semi-Major Axis:     45.49493369 +/-    0.0039
Time of Perihelion: 2452565.0689 +/-      12.1
Perihelion:          38.17323171 +/-    0.0054
Aphelion:            52.81663568 +/-    0.0063
Period (y)              306.8688 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.80771398 +/-    0.0004
Ecliptic Y           11.50098536 +/-    0.0002
Ecliptic Z          -16.49710889 +/-    0.0002
Ecliptic XDOT        -0.00083792 +/-    0.0000
Ecliptic YDOT         0.00285890 +/-    0.0000
Ecliptic ZDOT         0.00000210 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.48081811 +/-    0.0004
Geocenter to KBO     37.60038762 +/-    0.0005
# Hcoef:  7.33

The following table shows the complete astrometric record for 14SM373. 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 (14SM373) followed by the observatory code and reference code for the source of the astrometry.

2014 09  30.24903  01 52 30.010  -16 23 15.77  24.1g 14SM373   W84  C~4yUW      
2014 09  30.24903  01 52 30.01   -16 23 15.8   24.1g 14SM373   W84  C~3cnr      
2014 12  22.07976  01 46 35.61   -16 30 43.8   22.4i 14SM373   W84  C~3cnr      
2014 12  23.07962  01 46 33.741  -16 30 12.98  23.3r 14SM373   W84  C~4yUW      
2014 12  23.07962  01 46 33.74   -16 30 13.0   23.4r 14SM373   W84  C~3cnr      
2015 01  12.07007  01 46 17.571  -16 17 19.75  23.7g 14SM373   W84  C~4yUW      
2015 01  12.07007  01 46 17.57   -16 17 19.7   23.8g 14SM373   W84  C~3cnr      
2015 01  12.08270  01 46 17.572  -16 17 19.23  23.4i 14SM373   W84  C~4yUW      
2015 10  22.23048  01 56 58.117  -15 53 04.91  23.0i 14SM373   W84  C~4yUW      
2015 11  16.18433  01 54 53.580  -15 58 47.17  22.9i 14SM373   W84  C~4yUW      
2015 11  16.18433  01 54 53.58   -15 58 47.2   23.0i 14SM373   W84  C~3cnr      
2015 11  16.18571  01 54 53.577  -15 58 47.20  23.1r 14SM373   W84  C~4yUW      
2015 11  16.18571  01 54 53.58   -15 58 47.2   23.2r 14SM373   W84  C~3cnr      
2015 11  16.18708  01 54 53.569  -15 58 47.17  24.1g 14SM373   W84  C~4yUW      
2015 11  18.13832  01 54 44.589  -15 58 51.10  22.2z 14SM373   W84  C~4yUW      
2016 09  08.30361  02 06 18.366  -14 45 09.78  24.4g 14SM373   W84  C~4yUW      
2016 09  08.30361  02 06 18.37   -14 45 09.8   24.4g 14SM373   W84  C~3cnr      
2016 09  30.24057  02 04 53.726  -15 00 10.06  23.0i 14SM373   W84  C~4yUW      
2016 09  30.24057  02 04 53.73   -15 00 10.0   23.1i 14SM373   W84  C~3cnr      
2016 09  30.24194  02 04 53.713  -15 00 10.12  22.8r 14SM373   W84  C~4yUW      
2016 09  30.24194  02 04 53.71   -15 00 10.1   23.1r 14SM373   W84  C~3cnr      
2016 09  30.24331  02 04 53.725  -15 00 10.21  23.4g 14SM373   W84  C~4yUW      
2016 10  02.23745  02 04 44.627  -15 01 23.57  22.8i 14SM373   W84  C~4yUW      
2016 10  02.23745  02 04 44.63   -15 01 23.6   22.8i 14SM373   W84  C~3cnr      
2016 10  02.23883  02 04 44.617  -15 01 23.71  22.9r 14SM373   W84  C~4yUW      
2016 10  02.23883  02 04 44.62   -15 01 23.7   22.9r 14SM373   W84  C~3cnr      
2016 10  02.24020  02 04 44.608  -15 01 23.64  23.6g 14SM373   W84  C~4yUW      
2016 10  02.24020  02 04 44.61   -15 01 23.6   23.6g 14SM373   W84  C~3cnr      
2016 12  07.18401  01 59 34.915  -15 15 09.47  22.7z 14SM373   W84  C~4yUW      
2017 10  13.31279  02 10 00.585  -14 25 02.89  22.7z 14SM373   W84  C~4yUW      
2017 12  14.07451  02 05 18.924  -14 31 38.30  23.2r 14SM373   W84  C~4yUW      
2017 12  22.09803  02 04 57.324  -14 28 26.11  23.7g 14SM373   W84  C~4yUW      
2017 12  22.15231  02 04 57.188  -14 28 24.70  22.8i 14SM373   W84  C~4yUW      
2017 12  23.13539  02 04 54.949  -14 27 57.49  23.1r 14SM373   W84  C~4yUW      
2017 12  23.13674  02 04 54.937  -14 27 57.48  23.8g 14SM373   W84  C~4yUW      
2018 09  22.39391  02 17 38.621  -13 29 26.83  23.3i 14SM373   W84  C~4yUW      
2018 10  28.28519  02 14 50.904  -13 48 38.65  22.6z 14SM373   W84  C~4yUW      
2018 11  29.22351  02 12 16.825  -13 52 53.26  23.1r 14SM373   W84  C~4yUX      
2018 12  02.13556  02 12 04.834  -13 52 32.38  23.9g 14SM373   W84  C~4yUX      

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     0.03       0.00    -0.00
     2   0.0000     -0.01     0.01      -0.03    -0.03
     3   0.2268  -4875.46     0.11    1560.45     0.15
     4   0.2295  -4888.49    -0.06    1599.22    -0.05
     5   0.2295  -4888.47    -0.04    1599.23    -0.04
     6   0.2842  -4806.87    -0.03    2402.92     0.05
     7   0.2842  -4806.88    -0.04    2402.87     0.00
     8   0.2843  -4806.66    -0.07    2403.34    -0.04
     9   1.0595   4264.57    -0.01     147.44     0.13
    10   1.1278   2478.32    -0.00     541.04    -0.07
    11   1.1278   2478.34     0.01     541.07    -0.04
    12   1.1278   2478.32     0.08     541.04    -0.10
    13   1.1278   2478.29     0.04     541.06    -0.08
    14   1.1278   2478.19     0.04     541.13    -0.04
    15   1.1332   2357.55     0.07     588.41    -0.28
    16   1.9413  13341.18    -0.13     637.54    -0.10
    17   1.9413  13341.13    -0.18     637.58    -0.06
    18   2.0013  11849.29     0.16     309.94     0.09
    19   2.0013  11849.21     0.08     309.90     0.06
    20   2.0013  11848.98    -0.04     309.96     0.12
    21   2.0013  11849.02    -0.01     309.92     0.09
    22   2.0014  11849.14     0.22     309.77    -0.06
    23   2.0068  11698.47     0.02     295.80     0.04
    24   2.0068  11698.44    -0.00     295.85     0.08
    25   2.0068  11698.29    -0.04     295.77     0.01
    26   2.0068  11698.25    -0.09     295.78     0.02
    27   2.0068  11698.20    -0.03     295.92     0.17
    28   2.0068  11698.16    -0.07     295.89     0.14
    29   2.1874   7249.54    -0.08    1337.83    -0.08
    30   3.0365  16797.32     0.04     426.35    -0.14
    31   3.2055  12878.93     0.06    1730.89     0.02
    32   3.2275  12668.87     0.06    2033.94     0.14
    33   3.2277  12667.62    -0.04    2036.03     0.09
    34   3.2304  12648.79     0.03    2074.13     0.02
    35   3.2304  12648.64    -0.10    2074.20     0.05
    36   3.9785  24322.37    -0.01     715.81    -0.02
    37   4.0768  21586.61     0.06     681.66    -0.19
    38   4.1642  19416.16     0.01    1377.97     0.11
    39   4.1722  19264.25    -0.06    1469.11    -0.18

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.

14SM373    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.953    45.966    45.941
ecceobj         0.170     0.170     0.169
incobj         25.423    25.423    25.423
qmin           37.653    37.635    37.664
qmax           53.924    53.975    53.852
amean          45.607    45.620    45.594
amin           45.234    45.243    45.231
amax           46.038    46.046    45.998
emean           0.157     0.158     0.157
emin            0.144     0.144     0.144
emax            0.172     0.172     0.171
imean          23.885    23.885    23.886
imin           23.525    23.522    23.518
imax           24.253    24.262    24.258
excite_mean     0.434     0.435     0.434
fracstop        1.000     1.000     1.000
cjmean          2.884     2.884     2.884

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       176.8     176.9     176.7
kozaiamp        179.9     180.0     180.0