Orbit Fit and Astrometric record for 14SW373

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: 14SW373   
# Created Fri Dec  3 02:12:39 2021
# Orbit generated from Bernstein formalism
# Fitting     49 observations of     49
# Arc:   4.18y
# First observation: 2014/09/25
#  Last observation: 2018/11/29
Preliminary a, adot, b, bdot, g, gdot:
   0.000007   0.031838  -0.000144   0.006708   0.027360   0.000000
# Chi-squared of fit:    11.38 DOF:     92 RMS:  0.09
# Min/Max residuals:    -0.32    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.813226E-05  3.154248E-02  3.787487E-06  6.587969E-03  2.740856E-02 -4.092340E-03
# Covariance matrix:
  1.9161E-13 -1.2510E-13  5.5929E-15 -1.9601E-14  5.7882E-14 -7.8707E-13
 -1.2510E-13  1.6036E-13 -2.1998E-14  3.6322E-14  3.2779E-15  1.3258E-12
  5.5929E-15 -2.1998E-14  1.0416E-13 -4.5173E-14 -1.3010E-14 -2.1841E-13
 -1.9601E-14  3.6322E-14 -4.5173E-14  3.1488E-14  5.5073E-15  3.5038E-13
  5.7882E-14  3.2779E-15 -1.3010E-14  5.5073E-15  9.2427E-14  9.0652E-14
 -7.8707E-13  1.3258E-12 -2.1841E-13  3.5038E-13  9.0652E-14  1.2719E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -17.826380   21.877098    0.344677   -0.288982   -0.899163  2456925.758488
# Heliocentric elements and errors
Epoch:              2456920.5000  =  2014/09/20
Mean Anomaly:          346.05587 +/-     0.010
Argument of Peri:      333.22061 +/-     0.023
Long of Asc Node:       76.64273 +/-     0.001
Inclination:            20.84257 +/-     0.000
Eccentricity:         0.35228996 +/-    0.0001
Semi-Major Axis:     55.66120563 +/-    0.0045
Time of Perihelion: 2462795.6153 +/-       4.0
Perihelion:          36.05232156 +/-    0.0046
Aphelion:            75.27008969 +/-    0.0071
Period (y)              415.2763 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.23419581 +/-    0.0004
Ecliptic Y           12.97622891 +/-    0.0001
Ecliptic Z          -11.16916742 +/-    0.0001
Ecliptic XDOT        -0.00135287 +/-    0.0000
Ecliptic YDOT         0.00284936 +/-    0.0000
Ecliptic ZDOT         0.00075173 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.38508511 +/-    0.0003
Geocenter to KBO     36.48494606 +/-    0.0004
# Hcoef:  7.00

The following table shows the complete astrometric record for 14SW373. 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 (14SW373) followed by the observatory code and reference code for the source of the astrometry.

2014 09  25.25771  01 47 24.090  -08 02 04.26  22.7r 14SW373   W84  C~4yUY      
2014 09  25.25771  01 47 24.09   -08 02 04.3   22.7r 14SW373   W84  C~3cnr      
2014 11  27.06097  01 42 22.906  -08 21 01.10  22.6i 14SW373   W84  C~4yUY      
2014 12  24.12239  01 41 06.992  -08 14 50.74  23.3g 14SW373   W84  C~4yUY      
2014 12  24.12239  01 41 06.99   -08 14 50.7   23.6g 14SW373   W84  C~3cnr      
2014 12  24.12375  01 41 06.981  -08 14 50.77  22.0r 14SW373   W84  C~4yUY      
2014 12  24.12375  01 41 06.98   -08 14 50.7   22.4r 14SW373   W84  C~3cnr      
2015 01  14.06682  01 40 56.027  -08 03 53.35  22.4r 14SW373   W84  C~4yUY      
2015 01  14.06682  01 40 56.03   -08 03 53.4   22.6r 14SW373   W84  C~3cnr      
2015 01  14.06818  01 40 56.036  -08 03 53.40  23.7g 14SW373   W84  C~4yUY      
2015 01  14.06956  01 40 56.036  -08 03 53.20  22.5i 14SW373   W84  C~4yUY      
2015 01  14.06956  01 40 56.04   -08 03 53.2   22.6i 14SW373   W84  C~3cnr      
2015 09  04.33612  01 54 55.934  -06 48 21.59  21.9z 14SW373   W84  C~4yUY      
2015 09  04.33612  01 54 55.93   -06 48 21.6   21.9z 14SW373   W84  C~3cnr      
2015 11  02.14566  01 50 29.935  -07 16 40.70  23.6g 14SW373   W84  C~4yUY      
2015 11  15.18517  01 49 26.12   -07 19 19.0   21.7i 14SW373   W84  C~3cnr      
2015 11  15.18794  01 49 26.091  -07 19 18.96  23.1g 14SW373   W84  C~4yUY      
2015 11  20.12640  01 49 03.647  -07 19 47.34  22.2z 14SW373   W84  C~4yUY      
2015 11  20.12640  01 49 03.65   -07 19 47.3   22.4z 14SW373   W84  C~3cnr      
2016 09  08.29661  02 00 53.216  -05 48 39.96  22.5r 14SW373   W84  C~4yUY      
2016 09  08.29661  02 00 53.22   -05 48 40.0   22.8r 14SW373   W84  C~3cnr      
2016 09  10.29101  02 00 46.599  -05 49 46.65  22.4i 14SW373   W84  C~4yUY      
2016 09  10.29101  02 00 46.60   -05 49 46.6   22.4i 14SW373   W84  C~3cnr      
2016 09  10.29240  02 00 46.601  -05 49 46.71  23.5g 14SW373   W84  C~4yUY      
2016 09  10.29240  02 00 46.60   -05 49 46.7   23.8g 14SW373   W84  C~3cnr      
2016 10  03.23625  01 59 11.778  -06 02 15.27  23.0r 14SW373   W84  C~4yUY      
2016 10  03.23625  01 59 11.78   -06 02 15.3   23.0r 14SW373   W84  C~3cnr      
2016 10  03.23761  01 59 11.771  -06 02 15.27  22.5i 14SW373   W84  C~4yUY      
2016 10  03.23761  01 59 11.77   -06 02 15.3   22.6i 14SW373   W84  C~3cnr      
2016 10  03.23897  01 59 11.759  -06 02 15.32  23.9g 14SW373   W84  C~4yUY      
2016 10  03.23897  01 59 11.76   -06 02 15.3   23.7g 14SW373   W84  C~3cnr      
2016 10  22.19607  01 57 36.641  -06 10 50.61  22.9r 14SW373   W84  C~4yUY      
2016 10  22.19607  01 57 36.64   -06 10 50.6   22.9r 14SW373   W84  C~3cnr      
2016 10  22.19744  01 57 36.628  -06 10 50.78  21.9i 14SW373   W84  C~4yUY      
2016 10  22.19744  01 57 36.63   -06 10 50.7   22.0i 14SW373   W84  C~3cnr      
2016 10  22.20196  01 57 36.598  -06 10 50.75  23.3g 14SW373   W84  C~4yUY      
2016 10  22.20196  01 57 36.60   -06 10 50.8   23.6g 14SW373   W84  C~3cnr      
2016 12  06.05834  01 54 08.998  -06 17 19.57  22.6z 14SW373   W84  C~4yUY      
2016 12  06.05834  01 54 09.00   -06 17 19.6   22.6z 14SW373   W84  C~3cnr      
2017 09  18.38916  02 06 32.096  -04 50 57.91  22.6i 14SW373   W84  C~4yUY      
2017 10  03.19022  02 05 28.481  -04 58 48.58  22.1z 14SW373   W84  C~4yUY      
2017 11  27.14363  02 00 56.924  -05 15 12.13  22.8z 14SW373   W84  C~4yUY      
2017 11  27.14500  02 00 56.909  -05 15 12.03  22.4i 14SW373   W84  C~4yUY      
2017 12  14.06076  01 59 55.544  -05 13 33.94  23.4g 14SW373   W84  C~4yUY      
2018 01  05.07979  01 59 12.691  -05 06 04.17  22.4z 14SW373   W84  C~4yUY      
2018 09  22.28412  02 12 33.677  -03 49 03.29  22.3z 14SW373   W84  C~4yUY      
2018 11  15.09676  02 08 09.020  -04 10 24.62  22.1i 14SW373   W84  C~4yUY      
2018 11  29.19158  02 07 04.221  -04 11 42.58  22.4r 14SW373   W84  C~4yUY      
2018 11  29.19296  02 07 04.225  -04 11 42.64  22.9g 14SW373   W84  C~4yUY      

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     0.01       0.00     0.00
     2   0.0000      0.01     0.03       0.04     0.04
     3   0.1719  -4574.81     0.05     605.14     0.04
     4   0.2460  -5485.58    -0.01    1366.03     0.01
     5   0.2460  -5485.57     0.01    1365.98    -0.04
     6   0.2460  -5485.73    -0.14    1366.01    -0.05
     7   0.2460  -5485.72    -0.13    1366.08     0.02
     8   0.3034  -5394.19     0.02    2037.24    -0.15
     9   0.3034  -5394.21    -0.00    2037.31    -0.09
    10   0.3034  -5394.11     0.08    2037.21    -0.23
    11   0.3034  -5393.98     0.18    2037.38    -0.11
    12   0.3034  -5394.03     0.12    2037.40    -0.09
    13   0.9420   7892.46    -0.07    1582.07     0.02
    14   0.9420   7892.51    -0.01    1582.06     0.01
    15   1.1030   3580.77    -0.32    1494.22     0.23
    16   1.1387   2640.81     0.14    1702.67     0.10
    17   1.1388   2640.43    -0.06    1702.87     0.24
    18   1.1523   2320.11    -0.08    1801.38     0.01
    19   1.1523   2320.06    -0.14    1801.36    -0.01
    20   1.9549  14197.29     0.09    2887.79    -0.02
    21   1.9549  14197.25     0.05    2887.85     0.04
    22   1.9604  14080.05     0.01    2863.53     0.08
    23   1.9604  14080.02    -0.02    2863.49     0.03
    24   1.9604  14080.01     0.06    2863.44    -0.00
    25   1.9604  14080.02     0.07    2863.42    -0.02
    26   2.0232  12480.34     0.04    2705.77    -0.05
    27   2.0232  12480.32     0.03    2705.81    -0.01
    28   2.0232  12480.20     0.01    2705.82     0.01
    29   2.0232  12480.22     0.04    2705.85     0.03
    30   2.0232  12480.06    -0.02    2705.88     0.07
    31   2.0232  12480.04    -0.04    2705.87     0.05
    32   2.0751  10966.87     0.13    2765.06     0.04
    33   2.0751  10966.88     0.14    2765.04     0.03
    34   2.0751  10966.69     0.07    2765.02    -0.01
    35   2.0751  10966.63     0.01    2764.96    -0.07
    36   2.0751  10966.24    -0.01    2765.10     0.03
    37   2.0751  10966.23    -0.02    2765.15     0.09
    38   2.1979   7946.07    -0.09    3572.17    -0.04
    39   2.1979   7946.06    -0.10    3572.21    -0.01
    40   2.9819  20238.98     0.01    4173.23    -0.01
    41   3.0224  19170.68    -0.10    4099.22     0.09
    42   3.1729  15015.37     0.07    4730.47    -0.05
    43   3.1729  15015.20    -0.02    4730.64     0.09
    44   3.2192  14200.14    -0.14    5169.38    -0.09
    45   3.2795  13776.29     0.01    5829.57    -0.10
    46   3.9919  26743.97    -0.03    5555.62    -0.00
    47   4.1392  22534.44    -0.01    5882.31    -0.01
    48   4.1778  21598.09    -0.02    6180.56    -0.03
    49   4.1778  21598.12     0.09    6180.49    -0.14

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.

14SW373    quality flag:2

Type:       SCATNEAR    5:2EEE    5:2EEE

axisobj        56.334    56.347    56.321
ecceobj         0.359     0.359     0.359
incobj         20.843    20.843    20.843
qmin           35.305    35.052    35.151
qmax           76.949    77.413    76.982
amean          55.462    55.462    55.462
amin           54.618    54.564    54.600
amax           56.503    56.549    56.456
emean           0.341     0.348     0.349
emin            0.315     0.327     0.333
emax            0.365     0.371     0.366
imean          19.774    19.453    19.480
imin           18.998    18.769    19.185
imax           20.644    20.200    19.830
excite_mean     0.480     0.482     0.482
fracstop        1.000     1.000     1.000
cjmean          2.944     2.942     2.941

libcent 0      -180.0     179.9     179.4
libamp  0      -180.0     177.2     167.5
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       169.8     166.9     170.6
kozaiamp        180.0     179.9     180.0