Orbit Fit and Astrometric record for 14VT37

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: 14VT37    
# Created Fri Nov 22 02:10:09 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     30 observations of     30
# Arc:   7.05y
# First observation: 2013/11/05
#  Last observation: 2020/11/24
# Chi-squared of fit:    13.84 DOF:     54 RMS:  0.12
# Min/Max residuals:    -0.24    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.787113E-05  3.699017E-02 -9.508801E-06 -2.197797E-02  3.400411E-02  8.473948E-04
# Covariance matrix:
  2.2175E-13 -1.4938E-13 -6.6765E-14  7.5761E-14  3.2924E-14 -5.1331E-13
 -1.4938E-13  1.5806E-13  7.8947E-14 -9.0560E-14 -6.6077E-15  6.0885E-13
 -6.6765E-14  7.8947E-14  1.5473E-13 -7.2345E-14 -6.4229E-15  3.2323E-13
  7.5761E-14 -9.0560E-14 -7.2345E-14  6.4428E-14  1.4940E-15 -3.7045E-13
  3.2924E-14 -6.6077E-15 -6.4229E-15  1.4940E-15  1.9515E-13 -3.8188E-14
 -5.1331E-13  6.0885E-13  3.2323E-13 -3.7045E-13 -3.8188E-14  2.4922E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -14.095341   39.075496   -0.059738   -0.240638   -0.958890  2456601.619168
# Heliocentric elements and errors
Epoch:              2456602.5000  =  2013/11/06
Mean Anomaly:            2.86801 +/-     0.006
Argument of Peri:      200.67776 +/-     0.010
Long of Asc Node:      197.52749 +/-     0.000
Inclination:            33.31462 +/-     0.000
Eccentricity:         0.23464671 +/-    0.0001
Semi-Major Axis:     39.65390137 +/-    0.0033
Time of Perihelion: 2455875.8830 +/-       1.6
Perihelion:          30.34924405 +/-    0.0034
Aphelion:            48.95855868 +/-    0.0047
Period (y)              249.7107 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           22.87150215 +/-    0.0003
Ecliptic Y           18.65146605 +/-    0.0002
Ecliptic Z           -7.16228025 +/-    0.0001
Ecliptic XDOT        -0.00216669 +/-    0.0000
Ecliptic YDOT         0.00208047 +/-    0.0000
Ecliptic ZDOT        -0.00173276 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   30.36907134 +/-    0.0003
Geocenter to KBO     29.40823458 +/-    0.0004
# Hcoef:  9.03

The following table shows the complete astrometric record for 14VT37. 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 (14VT37) followed by the observatory code and reference code for the source of the astrometry.

2013 11  05.11839  02 44 33.91   +01 07 53.4   24.1r 14VT37    W84  C~7MlC      
2013 11  05.21186  02 44 33.33   +01 07 49.6         14VT37    W84  C~7MlC      
2013 11  05.26761  02 44 32.98   +01 07 47.4         14VT37    W84  C~7MlC      
2014 11  12.129821 02 53 29.03   +00 30 52.7   25.0g 14VT37    W84  C~1VHW      
2014 11  12.132037 02 53 29.00   +00 30 52.6   23.6r 14VT37    W84  C~1VHW      
2014 11  12.134398 02 53 28.99   +00 30 52.7   23.2i 14VT37    W84  C~1VHW      
2014 11  12.138183 02 53 28.96   +00 30 52.4   23.9z 14VT37    W84  C~1VHW      
2014 11  19.193281 02 52 45.81   +00 26 50.9   24.2g 14VT37    W84  C~1VHW      
2014 11  19.195498 02 52 45.80   +00 26 50.6   23.4r 14VT37    W84  C~1VHW      
2014 11  19.197847 02 52 45.78   +00 26 50.6   23.7i 14VT37    W84  C~1VHW      
2014 11  19.201632 02 52 45.76   +00 26 50.7   23.1z 14VT37    W84  C~1VHW      
2014 11  26.196597 02 52 04.31   +00 23 25.6   24.0r 14VT37    W84  C~1VHW      
2014 11  26.198947 02 52 04.30   +00 23 25.5   23.5i 14VT37    W84  C~1VHW      
2014 11  26.202755 02 52 04.29   +00 23 25.5   23.9z 14VT37    W84  C~1VHW      
2014 11  29.197315 02 51 47.17   +00 22 09.1   24.0r 14VT37    W84  C~1VHW      
2014 11  29.199653 02 51 47.16   +00 22 08.9   23.6i 14VT37    W84  C~1VHW      
2015 01  11.101256 02 49 00.24   +00 17 14.9   24.3g 14VT37    W84  C~1VHW      
2015 01  11.105822 02 49 00.23   +00 17 15.2   23.5i 14VT37    W84  C~1VHW      
2017 09  22.500758 03 26 21.06   -00 27 07.7   24.3g 14VT37    T09  C~7MlC      
2017 09  22.591913 03 26 20.78   -00 27 12.6   24.3g 14VT37    T09  C~7MlC      
2017 09  23.499652 03 26 18.03   -00 28 00.8   24.3g 14VT37    T09  C~7MlC      
2017 09  23.592383 03 26 17.72   -00 28 05.9   24.3g 14VT37    T09  C~7MlC      
2017 09  26.469164 03 26 08.33   -00 30 38.4   24.3g 14VT37    T09  C~7MlC      
2017 09  26.561539 03 26 08.00   -00 30 43.3   24.2g 14VT37    T09  C~7MlC      
2019 12  01.238233 03 39 01.90   -02 20 27.0   24.2V 14VT37    W84  C~7MlC      
2019 12  01.240302 03 39 01.89   -02 20 27.0   24.2V 14VT37    W84  C~7MlC      
2020 02  11.044668 03 35 05.91   -02 08 58.7   23.8i 14VT37    W84  C~7MlD      
2020 02  11.058770 03 35 05.91   -02 08 58.3         14VT37    W84  C~7MlD      
2020 11  24.238474 03 49 03.46   -02 49 31.1         14VT37    W84  C~7MlD      
2020 11  24.239613 03 49 03.45   -02 49 30.9   23.7i 14VT37    W84  C~7MlD      

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    -0.09       0.00    -0.18
     2   0.0003      0.00     0.00       0.00    -0.18
     3   0.0004      0.00    -0.01       0.00    -0.12
     4   1.0185      0.00     0.33       0.00    -0.02
     5   1.0185      0.00     0.09       0.00    -0.04
     6   1.0185      0.00     0.16       0.00     0.15
     7   1.0185      0.00     0.07       0.00    -0.01
     8   1.0379      0.00     0.02       0.00    -0.01
     9   1.0379      0.00     0.07       0.00    -0.24
    10   1.0379      0.00    -0.01       0.00    -0.16
    11   1.0379      0.00     0.04       0.00     0.06
    12   1.0570      0.00    -0.21       0.00     0.06
    13   1.0570      0.00    -0.15       0.00     0.03
    14   1.0570      0.00     0.04       0.00     0.13
    15   1.0652      0.00    -0.16       0.00     0.33
    16   1.0652      0.00    -0.11       0.00     0.18
    17   1.1827      0.00    -0.02       0.00    -0.02
    18   1.1827      0.00    -0.06       0.00     0.23
    19   3.8806      0.00    -0.09       0.00     0.13
    20   3.8808      0.00    -0.03       0.00     0.06
    21   3.8833      0.00     0.17       0.00    -0.00
    22   3.8836      0.00     0.01       0.00    -0.18
    23   3.8914      0.00     0.00       0.00    -0.07
    24   3.8917      0.00    -0.05       0.00    -0.07
    25   6.0701      0.00     0.01       0.00     0.04
    26   6.0701      0.00     0.05       0.00     0.09
    27   6.2667      0.00     0.10       0.00     0.02
    28   6.2668      0.00    -0.05       0.00    -0.08
    29   7.0530      0.00    -0.01       0.00    -0.16
    30   7.0530      0.00    -0.05       0.00     0.07

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.

14VT37    quality flag:3

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

axisobj        39.830    39.830    39.830
ecceobj         0.238     0.238     0.238
incobj         33.238    33.238    33.238
qmin           29.048    29.045    29.049
qmax           50.459    50.464    50.460
amean          39.454    39.454    39.454
amin           39.063    39.063    39.064
amax           39.900    39.902    39.902
emean           0.210     0.210     0.210
emin            0.142     0.142     0.142
emax            0.265     0.265     0.265
imean          33.716    33.715    33.716
imin           32.700    32.699    32.702
imax           34.821    34.822    34.820
excite_mean     0.594     0.594     0.594
fracstop        1.000     1.000     1.000
cjmean          2.623     2.623     2.623

libcent 0       179.3     179.4     179.3
libamp  0        80.9      80.8      80.8
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       159.7     159.7     159.8
kozaiamp        180.0     180.0     180.0