Orbit Fit and Astrometric record for 16VF1

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: 16VF1     
# Created Sat Dec  4 02:13:59 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     88 observations of     88
# Arc:   5.43y
# First observation: 2014/08/18
#  Last observation: 2020/01/22
# Chi-squared of fit:   147.20 DOF:    170 RMS:  0.23
# Min/Max residuals:    -1.00    0.68
# Exact a, adot, b, bdot, g, gdot:
  3.679809E-05  3.342207E-01  3.438671E-06  3.241639E-02  1.430919E-01 -1.145626E-02
# Covariance matrix:
  1.4598E-13 -7.5682E-14  4.7784E-15 -7.5770E-15  1.6020E-14  2.7072E-14
 -7.5682E-14  6.6091E-14 -3.8183E-16  5.9695E-15  1.8757E-14 -2.5722E-14
  4.7784E-15 -3.8183E-16  4.6049E-14 -1.5466E-14  3.8881E-15  2.4936E-16
 -7.5770E-15  5.9695E-15 -1.5466E-14  7.7568E-15  5.6075E-16 -2.6304E-15
  1.6020E-14  1.8757E-14  3.8881E-15  5.6075E-16  3.8161E-14 -7.5127E-15
  2.7072E-14 -2.5722E-14  2.4936E-16 -2.6304E-15 -7.5127E-15  1.1229E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
  -24.344481   17.891604    0.806086   -0.254139   -0.561912  2456888.033782
# Heliocentric elements and errors
Epoch:              2456888.5000  =  2014/08/19
Mean Anomaly:          301.54646 +/-     0.000
Argument of Peri:      351.99729 +/-     0.000
Long of Asc Node:       93.10599 +/-     0.000
Inclination:            22.49620 +/-     0.000
Eccentricity:         0.14912859 +/-    0.0000
Semi-Major Axis:      8.08014885 +/-    0.0000
Time of Perihelion: 2458250.6840 +/-       0.0
Perihelion:           6.87516763 +/-    0.0000
Aphelion:             9.28513007 +/-    0.0000
Period (y)               22.9687 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            6.89142470 +/-    0.0000
Ecliptic Y            1.38020260 +/-    0.0000
Ecliptic Z           -2.88076480 +/-    0.0000
Ecliptic XDOT        -0.00191623 +/-    0.0000
Ecliptic YDOT         0.00609847 +/-    0.0000
Ecliptic ZDOT         0.00065557 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    7.59579016 +/-    0.0000
Geocenter to KBO      6.98854641 +/-    0.0000
# Hcoef: 13.73

The following table shows the complete astrometric record for 16VF1. 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 (16VF1) followed by the observatory code and reference code for the source of the astrometry.

2014 08  18.533004 01 43 33.078  -15 28 40.74  22.4G 16VF1     F51  C~3cys      
2014 08  18.544902 01 43 33.032  -15 28 42.87  22.6G 16VF1     F51  C~3cys      
2014 08  19.506668 01 43 29.198  -15 31 36.81  22.6G 16VF1     F51  C~3cys      
2014 08  19.518544 01 43 29.175  -15 31 39.16  22.7G 16VF1     F51  C~3cys      
2014 08  19.530460 01 43 29.100  -15 31 41.32  22.6G 16VF1     F51  C~3cys      
2014 09  03.551987 01 41 30.016  -16 18 38.99  21.5G 16VF1     F51  C~3cys      
2014 09  03.563935 01 41 29.839  -16 18 40.49  21.4G 16VF1     F51  C~3cys      
2014 11  09.318854 01 19 39.877  -18 18 53.12  21.7G 16VF1     F51  C~3cys      
2014 11  09.329398 01 19 39.665  -18 18 52.65  22.1G 16VF1     F51  C~3cys      
2014 11  09.339958 01 19 39.433  -18 18 52.66  21.1G 16VF1     F51  C~3cys      
2014 11  09.350497 01 19 39.166  -18 18 52.87  21.7G 16VF1     F51  C~3cys      
2015 09  08.553995 02 52 55.582  -06 20 05.51  23.3G 16VF1     F51  C~3cys      
2015 09  08.567866 02 52 55.495  -06 20 07.32  22.9G 16VF1     F51  C~3cys      
2015 09  08.581751 02 52 55.424  -06 20 09.18  22.0G 16VF1     F51  C~3cys      
2015 09  08.595610 02 52 55.346  -06 20 11.35  21.8G 16VF1     F51  C~3cys      
2015 10  13.417189 02 45 01.907  -07 41 12.48  22.0G 16VF1     F51  C~3cys      
2015 10  13.431340 02 45 01.615  -07 41 13.77  22.4G 16VF1     F51  C~3cys      
2015 10  13.445456 02 45 01.318  -07 41 15.96  22.2G 16VF1     F51  C~3cys      
2015 10  13.459573 02 45 00.999  -07 41 17.39  22.3G 16VF1     F51  C~3cys      
2015 10  15.478640 02 44 19.026  -07 45 12.15  22.8G 16VF1     F51  C~3cys      
2015 10  15.492759 02 44 18.746  -07 45 13.44  21.9G 16VF1     F51  C~3cys      
2015 10  15.506887 02 44 18.445  -07 45 15.20  22.0G 16VF1     F51  C~3cys      
2015 11  08.415738 02 35 10.023  -08 15 22.32  22.3G 16VF1     F51  C~3cys      
2015 11  08.428110 02 35 09.726  -08 15 22.71  22.1G 16VF1     F51  C~3cys      
2015 11  08.440487 02 35 09.407  -08 15 23.16  21.9G 16VF1     F51  C~3cys      
2015 12  06.306059 02 25 27.674  -08 00 55.25  21.3G 16VF1     F51  C~3cys      
2016 01  03.264227 02 20 45.167  -06 50 42.04  22.3G 16VF1     F51  C~3cys      
2016 01  03.274581 02 20 45.163  -06 50 40.21  22.7G 16VF1     F51  C~3cys      
2016 01  03.284903 02 20 45.089  -06 50 37.47  23.0G 16VF1     F51  C~3cys      
2016 01  03.295227 02 20 45.075  -06 50 35.73  22.5G 16VF1     F51  C~3cys      
2016 10  06.634789 04 04 11.418  +04 02 33.33  23.5G 16VF1     F51  C~3cys      
2016 10  13.534006 04 02 40.664  +03 53 54.53  22.6G 16VF1     F51  C~3cys      
2016 10  13.545398 04 02 40.496  +03 53 54.06  23.1G 16VF1     F51  C~3cys      
2016 10  13.556861 04 02 40.318  +03 53 53.21  22.2G 16VF1     F51  C~3cys      
2016 10  13.568361 04 02 40.132  +03 53 52.43  23.8G 16VF1     F51  C~3cys      
2016 10  13.634973 04 02 39.120  +03 53 47.76  23.4G 16VF1     F51  C~3cys      
2016 11  05.41384  03 55 13.280  +03 30 44.98  21.9w 16VF1     F51  C~21Vd      
2016 11  05.42690  03 55 12.966  +03 30 44.43  21.7w 16VF1     F51  C~21Vd      
2016 11  05.44000  03 55 12.643  +03 30 43.95  21.7w 16VF1     F51  C~21Vd      
2016 11  06.24315  03 54 53.84   +03 30 10.2   22.2R 16VF1     291  C~21Vd      
2016 11  06.26597  03 54 53.28   +03 30 09.2   22.2R 16VF1     291  C~21Vd      
2016 11  06.29350  03 54 52.64   +03 30 08.4   22.1R 16VF1     291  C~21Vd      
2016 11  07.33125  03 54 28.09   +03 29 27.4         16VF1     291  C~21Vd      
2016 11  07.35167  03 54 27.58   +03 29 26.7   21.9R 16VF1     291  C~21Vd      
2016 11  07.37192  03 54 27.09   +03 29 26.0   21.7R 16VF1     291  C~21Vd      
2017 01  20.259474 03 31 39.161  +04 56 10.50  22.7G 16VF1     F51  C~3cys      
2017 01  20.272294 03 31 39.125  +04 56 12.81  22.7G 16VF1     F51  C~3cys      
2017 01  20.283999 03 31 39.075  +04 56 14.87  22.4G 16VF1     F51  C~3cys      
2017 01  20.295760 03 31 39.032  +04 56 16.98  22.6G 16VF1     F51  C~3cys      
2017 09  01.587415 05 19 57.508  +14 44 00.81  22.6G 16VF1     F51  C~3cys      
2017 09  01.592597 05 19 57.605  +14 44 00.94  22.3G 16VF1     F51  C~3cys      
2017 09  01.597780 05 19 57.730  +14 44 01.01  22.3G 16VF1     F51  C~3cys      
2017 09  01.602943 05 19 57.808  +14 44 01.01  22.5G 16VF1     F51  C~3cys      
2018 01  05.400321 04 56 26.400  +15 54 44.30  22.7G 16VF1     F51  C~3cys      
2018 01  05.424024 04 56 25.846  +15 54 45.63  22.9G 16VF1     F51  C~3cys      
2018 01  05.435926 04 56 25.605  +15 54 47.00  22.9G 16VF1     F51  C~3cys      
2018 01  10.384351 04 54 45.510  +16 02 24.34  22.2G 16VF1     F51  C~3cys      
2018 01  10.396985 04 54 45.254  +16 02 25.92  21.4G 16VF1     F51  C~3cys      
2018 01  10.409590 04 54 45.025  +16 02 26.86  21.8G 16VF1     F51  C~3cys      
2018 01  10.422151 04 54 44.778  +16 02 27.60  22.0G 16VF1     F51  C~3cys      
2018 01  11.386434 04 54 26.567  +16 04 00.37  22.6G 16VF1     F51  C~3cys      
2018 01  11.410037 04 54 26.093  +16 04 02.70  22.7G 16VF1     F51  C~3cys      
2019 10  27.604011 08 28 25.537  +28 00 37.92  22.1G 16VF1     F51  C~3cys      
2019 10  27.616258 08 28 25.736  +28 00 39.24  22.5G 16VF1     F51  C~3cys      
2019 10  27.628581 08 28 25.902  +28 00 40.89  23.3G 16VF1     F51  C~3cys      
2019 11  03.601394 08 29 58.641  +28 13 25.34  22.1G 16VF1     F51  C~3cys      
2019 11  03.612545 08 29 58.766  +28 13 26.62  21.6G 16VF1     F51  C~3cys      
2019 11  03.623698 08 29 58.901  +28 13 28.13  22.2G 16VF1     F51  C~3cys      
2019 11  03.634871 08 29 59.022  +28 13 29.42  22.1G 16VF1     F51  C~3cys      
2019 11  09.589298 08 30 54.814  +28 25 59.17  23.8G 16VF1     F51  C~3cys      
2019 12  30.56075  08 23 46.836  +30 57 54.22  21.8w 16VF1     F51  C~3cys      
2019 12  30.56398  08 23 46.769  +30 57 54.80  21.8w 16VF1     F51  C~3cys      
2019 12  30.57182  08 23 46.572  +30 57 56.43  21.8w 16VF1     F51  C~3cys      
2019 12  30.57505  08 23 46.498  +30 57 57.12  21.9w 16VF1     F51  C~3cys      
2019 12  30.58281  08 23 46.312  +30 57 58.34  21.9w 16VF1     F51  C~3cys      
2019 12  30.58603  08 23 46.252  +30 57 59.14  21.8w 16VF1     F51  C~3cys      
2019 12  30.59385  08 23 46.080  +30 58 00.81  22.0w 16VF1     F51  C~3cys      
2019 12  30.59705  08 23 46.008  +30 58 01.33  21.7w 16VF1     F51  C~3cys      
2020 01  19.388109 08 15 22.769  +31 58 22.70  22.2w 16VF1     F51  C~3cys      
2020 01  19.400462 08 15 22.429  +31 58 24.78  22.0w 16VF1     F51  C~3cys      
2020 01  19.412988 08 15 22.074  +31 58 26.90  21.8w 16VF1     F51  C~3cys      
2020 01  21.369610 08 14 28.607  +32 03 42.81  22.1w 16VF1     F51  C~3cys      
2020 01  21.397880 08 14 27.824  +32 03 47.35  22.1w 16VF1     F51  C~3cys      
2020 01  21.412024 08 14 27.420  +32 03 49.58  22.1w 16VF1     F51  C~3cys      
2020 01  22.368074 08 14 01.256  +32 06 20.37  21.9w 16VF1     F51  C~3cys      
2020 01  22.379444 08 14 00.942  +32 06 21.97  21.7w 16VF1     F51  C~3cys      
2020 01  22.390909 08 14 00.617  +32 06 23.95  22.0w 16VF1     F51  C~3cys      
2020 01  22.402316 08 14 00.295  +32 06 25.63  21.8w 16VF1     F51  C~3cys      

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     0.04
     2   0.0000      0.00     0.08       0.00     0.06
     3   0.0027      0.00    -0.25       0.00     0.11
     4   0.0027      0.00     0.24       0.00    -0.08
     5   0.0027      0.00    -0.05       0.00    -0.06
     6   0.0439      0.00     0.28       0.00    -0.44
     7   0.0439      0.00    -0.22       0.00     0.32
     8   0.2267      0.00     0.44       0.00     0.21
     9   0.2267      0.00     0.33       0.00     0.35
    10   0.2267      0.00    -0.07       0.00     0.01
    11   0.2267      0.00    -1.00       0.00    -0.54
    12   1.0569      0.00    -0.03       0.00    -0.28
    13   1.0569      0.00    -0.12       0.00    -0.12
    14   1.0569      0.00     0.04       0.00    -0.01
    15   1.0570      0.00     0.09       0.00    -0.21
    16   1.1523      0.00     0.17       0.00    -0.16
    17   1.1524      0.00     0.25       0.00     0.24
    18   1.1524      0.00     0.24       0.00    -0.27
    19   1.1524      0.00    -0.09       0.00    -0.03
    20   1.1580      0.00    -0.28       0.00    -0.37
    21   1.1580      0.00     0.09       0.00    -0.06
    22   1.1580      0.00     0.16       0.00    -0.21
    23   1.2235      0.00     0.20       0.00     0.18
    24   1.2235      0.00     0.22       0.00     0.17
    25   1.2236      0.00    -0.10       0.00     0.10
    26   1.2999      0.00     0.05       0.00     0.19
    27   1.3764      0.00    -0.13       0.00     0.12
    28   1.3764      0.00     0.34       0.00    -0.14
    29   1.3765      0.00    -0.24       0.00     0.52
    30   1.3765      0.00     0.08       0.00     0.18
    31   2.1358      0.00     0.55       0.00     0.68
    32   2.1547      0.00    -0.05       0.00    -0.34
    33   2.1547      0.00     0.06       0.00     0.03
    34   2.1548      0.00     0.04       0.00     0.02
    35   2.1548      0.00    -0.09       0.00     0.09
    36   2.1550      0.00     0.11       0.00     0.32
    37   2.2173      0.00     0.13       0.00     0.18
    38   2.2174      0.00     0.09       0.00     0.18
    39   2.2174      0.00    -0.06       0.00     0.26
    40   2.2196      0.00    -0.36       0.00    -0.02
    41   2.2197      0.00    -0.56       0.00    -0.11
    42   2.2197      0.00    -0.25       0.00     0.20
    43   2.2226      0.00    -0.24       0.00    -0.09
    44   2.2226      0.00    -0.45       0.00    -0.02
    45   2.2227      0.00    -0.43       0.00     0.06
    46   2.4250      0.00     0.02       0.00    -0.05
    47   2.4250      0.00     0.17       0.00    -0.02
    48   2.4251      0.00     0.05       0.00    -0.04
    49   2.4251      0.00     0.04       0.00    -0.01
    50   3.0392      0.00    -0.11       0.00     0.05
    51   3.0392      0.00    -0.11       0.00     0.05
    52   3.0392      0.00     0.30       0.00    -0.02
    53   3.0392      0.00     0.02       0.00    -0.16
    54   3.3836      0.00     0.38       0.00    -0.24
    55   3.3837      0.00    -0.17       0.00    -1.00
    56   3.3837      0.00     0.11       0.00    -0.68
    57   3.3973      0.00     0.09       0.00     0.11
    58   3.3973      0.00    -0.02       0.00     0.49
    59   3.3973      0.00     0.27       0.00     0.24
    60   3.3974      0.00     0.26       0.00    -0.20
    61   3.4000      0.00     0.17       0.00     0.03
    62   3.4001      0.00    -0.14       0.00     0.10
    63   5.1912      0.00    -0.13       0.00    -0.25
    64   5.1912      0.00     0.12       0.00    -0.18
    65   5.1912      0.00    -0.13       0.00     0.21
    66   5.2103      0.00    -0.25       0.00    -0.00
    67   5.2103      0.00    -0.16       0.00    -0.06
    68   5.2104      0.00     0.08       0.00     0.12
    69   5.2104      0.00     0.12       0.00     0.07
    70   5.2267      0.00    -0.02       0.00     0.13
    71   5.3663      0.00     0.08       0.00    -0.02
    72   5.3663      0.00     0.20       0.00    -0.07
    73   5.3663      0.00    -0.04       0.00     0.03
    74   5.3663      0.00    -0.03       0.00     0.09
    75   5.3663      0.00    -0.13       0.00    -0.20
    76   5.3663      0.00     0.09       0.00    -0.02
    77   5.3664      0.00     0.21       0.00     0.13
    78   5.3664      0.00     0.24       0.00     0.03
    79   5.4205      0.00     0.02       0.00    -0.01
    80   5.4206      0.00     0.10       0.00     0.02
    81   5.4206      0.00     0.02       0.00     0.07
    82   5.4260      0.00    -0.06       0.00     0.05
    83   5.4261      0.00     0.07       0.00     0.05
    84   5.4261      0.00    -0.05       0.00     0.01
    85   5.4287      0.00    -0.05       0.00     0.13
    86   5.4287      0.00     0.01       0.00    -0.07
    87   5.4288      0.00    -0.04       0.00     0.10
    88   5.4288      0.00    -0.07       0.00    -0.02

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.

16VF1    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj         8.061     8.061     8.061
ecceobj         0.149     0.149     0.149
incobj         22.510    22.510    22.510
qmin            6.859     6.391     4.772
qmax           10.271    10.950    12.123
amean           8.353     8.626     8.157
amin            8.061     8.061     7.208
amax            8.644     9.026     8.641
emean           0.169     0.212     0.319
emin            0.149     0.149     0.149
emax            0.188     0.250     0.435
imean          20.512    18.805    18.109
imin           20.038    17.401    14.989
imax           20.986    20.986    20.986
excite_mean     0.389     0.388     0.454
fracstop        0.000     0.001     0.001
cjmean          4.574     4.478     4.630

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       194.7     112.8      97.9
kozaiamp        157.0     156.7     162.1