Orbit Fit and Astrometric record for 19SS149

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: 19SS149   
# Created Wed Apr 24 01:18:23 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     74 observations of     74
# Arc:  11.95y
# First observation: 2010/10/15
#  Last observation: 2022/09/28
# Chi-squared of fit:    71.21 DOF:    142 RMS:  0.17
# Min/Max residuals:    -0.49    0.58
# Exact a, adot, b, bdot, g, gdot:
  1.407893E-05  1.996542E-02 -4.933173E-08 -2.518394E-04  2.048363E-02 -1.124648E-02
# Covariance matrix:
  5.9295E-13 -1.5167E-13 -1.3090E-15  1.5178E-15 -1.1311E-13 -4.0361E-13
 -1.5167E-13  4.4259E-14  6.3370E-16 -4.6573E-16  3.0730E-14  1.2829E-13
 -1.3090E-15  6.3370E-16  1.6688E-13 -1.9182E-14 -1.2847E-15  2.2717E-15
  1.5178E-15 -4.6573E-16 -1.9182E-14  2.4571E-15 -4.4702E-16 -1.4095E-15
 -1.1311E-13  3.0730E-14 -1.2847E-15 -4.4702E-16  6.1951E-14  8.6936E-14
 -4.0361E-13  1.2829E-13  2.2717E-15 -1.4095E-15  8.6936E-14  3.9502E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
  -15.205047    2.364368   -0.331685   -0.245717   -0.903995  2455484.826411
# Heliocentric elements and errors
Epoch:              2455484.5000  =  2010/10/15
Mean Anomaly:          348.49340 +/-     0.003
Argument of Peri:      340.77049 +/-     0.003
Long of Asc Node:       94.52924 +/-     0.001
Inclination:            14.92717 +/-     0.000
Eccentricity:         0.70276107 +/-    0.0001
Semi-Major Axis:    119.03981945 +/-    0.0208
Time of Perihelion: 2470647.3654 +/-     120.4
Perihelion:          35.38326820 +/-    0.0087
Aphelion:           202.69637070 +/-    0.0359
Period (y)             1298.8129 +/-      0.34
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           47.99686255 +/-    0.0006
Ecliptic Y            2.31304722 +/-    0.0001
Ecliptic Z          -12.80408773 +/-    0.0002
Ecliptic XDOT        -0.00156821 +/-    0.0000
Ecliptic YDOT         0.00261247 +/-    0.0000
Ecliptic ZDOT         0.00036176 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   49.72962097 +/-    0.0006
Geocenter to KBO     48.81994162 +/-    0.0006
# Hcoef:  6.17

The following table shows the complete astrometric record for 19SS149. 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 (19SS149) followed by the observatory code and reference code for the source of the astrometry.

2010 10  15.325645 00 33 14.713  -12 59 27.24  22.9G 19SS149   F51  C~4ZeW      
2012 08  09.595188 00 45 43.413  -11 33 36.35  22.6G 19SS149   F51  C~4ZeW      
2012 10  10.362204 00 42 20.441  -12 01 44.61  22.9G 19SS149   F51  C~4ZeW      
2012 10  10.403954 00 42 20.265  -12 01 45.57  22.8G 19SS149   F51  C~4ZeW      
2014 08  23.537817 00 54 20.455  -10 39 38.92  23.1G 19SS149   F51  C~4ZeW      
2014 08  23.563278 00 54 20.391  -10 39 39.71  23.1G 19SS149   F51  C~4ZeW      
2014 09  02.449821 00 53 51.921  -10 44 35.13  22.6G 19SS149   F51  C~4ZeW      
2014 09  02.460412 00 53 51.888  -10 44 35.32  22.7G 19SS149   F51  C~4ZeW      
2014 09  02.481590 00 53 51.828  -10 44 36.18  23.1G 19SS149   F51  C~4ZeW      
2014 09  22.470663 00 52 41.399  -10 54 16.54  22.5G 19SS149   F51  C~4ZeW      
2014 09  22.483451 00 52 41.360  -10 54 17.26  22.6G 19SS149   F51  C~4ZeW      
2014 09  22.496288 00 52 41.269  -10 54 17.75  21.7G 19SS149   F51  C~4ZeW      
2014 09  22.509122 00 52 41.240  -10 54 18.34  22.3G 19SS149   F51  C~4ZeW      
2015 07  19.589451 00 59 49.978  -09 52 56.24  22.8G 19SS149   F51  C~4ZeW      
2015 07  19.600686 00 59 49.951  -09 52 56.22  22.4G 19SS149   F51  C~4ZeW      
2015 12  02.289778 00 53 18.149  -10 38 03.84  22.4G 19SS149   F51  C~4ZeW      
2015 12  03.279397 00 53 16.265  -10 37 56.59  22.4G 19SS149   F51  C~4ZeW      
2016 09  08.527463 01 02 59.701  -09 43 48.68  23.0G 19SS149   F51  C~4ZeW      
2016 09  08.550087 01 02 59.608  -09 43 49.25  23.5G 19SS149   F51  C~4ZeW      
2016 09  08.561419 01 02 59.559  -09 43 49.50  22.5G 19SS149   F51  C~4ZeW      
2017 08  24.566822 01 08 37.302  -09 02 40.43  22.8G 19SS149   F51  C~4ZeW      
2017 08  24.579769 01 08 37.272  -09 02 40.99  22.6G 19SS149   F51  C~4ZeW      
2017 08  24.592766 01 08 37.228  -09 02 41.49  22.7G 19SS149   F51  C~4ZeW      
2017 08  24.605704 01 08 37.204  -09 02 41.74  22.8G 19SS149   F51  C~4ZeW      
2017 11  21.321530 01 03 15.792  -09 33 54.37  22.4G 19SS149   F51  C~4ZeW      
2017 11  21.332627 01 03 15.771  -09 33 54.76  23.0G 19SS149   F51  C~4ZeW      
2017 11  21.343830 01 03 15.736  -09 33 54.54  22.1G 19SS149   F51  C~4ZeW      
2017 11  21.354976 01 03 15.707  -09 33 54.33  22.4G 19SS149   F51  C~4ZeW      
2018 01  15.221730 01 02 30.516  -09 19 30.32  22.4G 19SS149   F51  C~4ZeW      
2018 01  15.234874 01 02 30.527  -09 19 29.78  23.1G 19SS149   F51  C~4ZeW      
2018 01  15.247983 01 02 30.553  -09 19 29.42  22.7G 19SS149   F51  C~4ZeW      
2018 01  15.261120 01 02 30.575  -09 19 29.20  22.6G 19SS149   F51  C~4ZeW      
2018 08  15.591205 01 13 54.887  -08 23 42.83  22.7G 19SS149   F51  C~4ZeW      
2018 08  15.602367 01 13 54.875  -08 23 43.02  23.2G 19SS149   F51  C~4ZeW      
2018 11  12.343852 01 08 40.786  -08 59 15.49  22.5G 19SS149   F52  C~4ZeW      
2019 07  28.611149 01 19 17.176  -07 40 34.98  23.1G 19SS149   F52  C~4ZeW      
2019 08  24.579009 01 18 40.033  -07 52 17.62  22.4G 19SS149   F51  C~4ZeW      
2019 09  24.33920  01 17 01.302  -08 07 36.38  23.0r 19SS149   807  C~4ZeW      
2019 09  25.32491  01 16 57.480  -08 08 04.58  23.0r 19SS149   807  C~4ZeW      
2019 10  05.484748 01 16 16.477  -08 12 42.87  22.4G 19SS149   F52  C~4ZeW      
2019 10  29.391867 01 14 37.205  -08 21 15.12  21.2G 19SS149   F52  C~4ZeW      
2019 11  23.337609 01 13 08.275  -08 24 57.03  23.2G 19SS149   F51  C~4ZeW      
2019 11  23.349510 01 13 08.248  -08 24 57.50  22.6G 19SS149   F51  C~4ZeW      
2019 11  28.261951 01 12 54.396  -08 24 56.40  22.8G 19SS149   F52  C~4ZeW      
2019 11  28.272972 01 12 54.371  -08 24 56.43  22.7G 19SS149   F52  C~4ZeW      
2019 11  28.284029 01 12 54.329  -08 24 56.22  23.3G 19SS149   F52  C~4ZeW      
2019 11  28.295175 01 12 54.300  -08 24 56.32  22.8G 19SS149   F52  C~4ZeW      
2019 11  29.02993  01 12 52.345  -08 24 54.51  22.6r 19SS149   304  C~4ZeW      
2019 11  29.329574 01 12 51.581  -08 24 54.32  23.3G 19SS149   F52  C~4ZeW      
2019 11  30.02908  01 12 49.791  -08 24 52.29  22.7r 19SS149   304  C~4ZeW      
2019 12  24.255006 01 12 09.705  -08 20 34.56  22.1G 19SS149   F52  C~4ZeW      
2020 09  09.599171 01 23 03.020  -07 23 59.55  21.4G 19SS149   F51  C~4ZeW      
2020 09  09.617251 01 23 02.947  -07 24 00.32  21.5G 19SS149   F51  C~4ZeW      
2020 09  14.469451 01 22 46.427  -07 26 26.87  22.8G 19SS149   F51  C~4ZeW      
2020 09  14.481764 01 22 46.385  -07 26 27.17  22.6G 19SS149   F51  C~4ZeW      
2020 09  14.494080 01 22 46.335  -07 26 27.65  22.5G 19SS149   F51  C~4ZeW      
2020 09  14.506392 01 22 46.278  -07 26 27.99  22.7G 19SS149   F51  C~4ZeW      
2020 09  15.463434 01 22 42.911  -07 26 56.70  22.3G 19SS149   F51  C~4ZeW      
2020 09  15.480189 01 22 42.835  -07 26 57.25  22.7G 19SS149   F51  C~4ZeW      
2020 09  15.496963 01 22 42.777  -07 26 57.68  23.3G 19SS149   F51  C~4ZeW      
2020 09  15.515122 01 22 42.703  -07 26 58.24  22.3G 19SS149   F51  C~4ZeW      
2020 09  16.412969 01 22 39.505  -07 27 25.31  22.5G 19SS149   F51  C~4ZeW      
2020 09  16.430800 01 22 39.438  -07 27 25.88  22.7G 19SS149   F51  C~4ZeW      
2020 09  16.448691 01 22 39.371  -07 27 26.22  22.7G 19SS149   F51  C~4ZeW      
2020 09  16.466442 01 22 39.304  -07 27 26.71  22.5G 19SS149   F51  C~4ZeW      
2020 09  21.537083 01 22 20.517  -07 29 57.10  22.8G 19SS149   F52  C~4ZeW      
2020 12  06.271947 01 17 40.065  -07 48 17.82  22.6G 19SS149   F51  C~4ZeW      
2020 12  06.285337 01 17 40.016  -07 48 17.89  22.0G 19SS149   F51  C~4ZeW      
2020 12  06.298721 01 17 39.987  -07 48 17.76  22.5G 19SS149   F51  C~4ZeW      
2021 01  15.06611  01 17 18.022  -07 35 46.41        19SS149   304  C~4ZeW      
2021 01  16.05805  01 17 19.196  -07 35 17.06        19SS149   304  C~4ZeW      
2022 09  28.476729 01 32 37.757  -06 16 28.32  22.3w 19SS149   F51  C~5rBA      
2022 09  28.487841 01 32 37.722  -06 16 28.69  22.4w 19SS149   F51  C~5rBA      
2022 09  28.498839 01 32 37.651  -06 16 28.89  22.3w 19SS149   F51  C~5rBA      

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     0.27       0.00     0.08
     2   1.8187      0.00     0.35       0.00    -0.11
     3   1.9878      0.00    -0.04       0.00    -0.11
     4   1.9879      0.00    -0.19       0.00    -0.22
     5   3.8555      0.00     0.02       0.00     0.12
     6   3.8555      0.00     0.08       0.00     0.08
     7   3.8826      0.00    -0.06       0.00    -0.04
     8   3.8826      0.00    -0.04       0.00     0.09
     9   3.8827      0.00     0.07       0.00    -0.13
    10   3.9374      0.00    -0.05       0.00     0.46
    11   3.9375      0.00     0.12       0.00     0.09
    12   3.9375      0.00    -0.49       0.00    -0.04
    13   3.9375      0.00    -0.18       0.00    -0.28
    14   4.7591      0.00     0.04       0.00     0.01
    15   4.7591      0.00    -0.34       0.00     0.26
    16   5.1306      0.00    -0.33       0.00    -0.11
    17   5.1333      0.00     0.10       0.00     0.06
    18   5.9006      0.00     0.23       0.00     0.03
    19   5.9007      0.00     0.01       0.00     0.14
    20   5.9007      0.00    -0.14       0.00     0.23
    21   6.8590      0.00     0.06       0.00     0.10
    22   6.8590      0.00     0.11       0.00    -0.07
    23   6.8590      0.00    -0.04       0.00    -0.19
    24   6.8591      0.00     0.10       0.00    -0.05
    25   7.1020      0.00    -0.05       0.00     0.13
    26   7.1020      0.00     0.12       0.00    -0.25
    27   7.1020      0.00     0.09       0.00    -0.02
    28   7.1021      0.00     0.14       0.00     0.20
    29   7.2523      0.00    -0.05       0.00    -0.08
    30   7.2523      0.00    -0.15       0.00     0.06
    31   7.2524      0.00    -0.03       0.00     0.02
    32   7.2524      0.00     0.03       0.00    -0.17
    33   7.8337      0.00    -0.11       0.00    -0.25
    34   7.8337      0.00     0.03       0.00    -0.13
    35   8.0767      0.00     0.20       0.00    -0.03
    36   8.7838      0.00     0.55       0.00     0.03
    37   8.8576      0.00    -0.09       0.00     0.02
    38   8.9419      0.00    -0.36       0.00    -0.11
    39   8.9446      0.00    -0.04       0.00    -0.06
    40   8.9724      0.00     0.24       0.00    -0.04
    41   9.0378      0.00    -0.41       0.00    -0.25
    42   9.1061      0.00    -0.01       0.00     0.39
    43   9.1062      0.00     0.13       0.00    -0.06
    44   9.1196      0.00     0.04       0.00     0.05
    45   9.1196      0.00     0.12       0.00     0.00
    46   9.1197      0.00    -0.06       0.00     0.19
    47   9.1197      0.00    -0.03       0.00     0.07
    48   9.1217      0.00    -0.30       0.00     0.22
    49   9.1225      0.00     0.02       0.00    -0.14
    50   9.1244      0.00     0.08       0.00    -0.16
    51   9.1908      0.00     0.27       0.00     0.17
    52   9.9036      0.00     0.35       0.00     0.06
    53   9.9036      0.00     0.17       0.00    -0.17
    54   9.9169      0.00     0.01       0.00    -0.08
    55   9.9169      0.00     0.05       0.00    -0.01
    56   9.9170      0.00    -0.04       0.00    -0.12
    57   9.9170      0.00    -0.23       0.00    -0.09
    58   9.9196      0.00     0.09       0.00    -0.03
    59   9.9197      0.00    -0.13       0.00    -0.08
    60   9.9197      0.00    -0.08       0.00    -0.00
    61   9.9198      0.00    -0.20       0.00    -0.02
    62   9.9222      0.00     0.03       0.00    -0.17
    63   9.9223      0.00     0.01       0.00    -0.20
    64   9.9223      0.00    -0.01       0.00    -0.01
    65   9.9224      0.00    -0.03       0.00     0.03
    66   9.9362      0.00     0.58       0.00     0.01
    67  10.1436      0.00     0.25       0.00     0.21
    68  10.1436      0.00    -0.03       0.00     0.05
    69  10.1437      0.00    -0.01       0.00     0.09
    70  10.2525      0.00     0.10       0.00     0.34
    71  10.2553      0.00    -0.26       0.00    -0.09
    72  11.9539      0.00    -0.14       0.00     0.01
    73  11.9539      0.00     0.02       0.00    -0.04
    74  11.9539      0.00    -0.37       0.00     0.08

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.

19SS149    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       119.839   119.836   119.841
ecceobj         0.705     0.705     0.705
incobj         14.932    14.932    14.932
qmin           33.625    33.661    33.506
qmax          211.488   213.416   214.833
amean         115.970   117.529   117.315
amin          109.762   112.774   109.696
amax          123.509   124.292   124.956
emean           0.698     0.701     0.702
emin            0.676     0.683     0.680
emax            0.716     0.718     0.722
imean          12.579    12.920    12.341
imin           11.523    11.617    11.140
imax           13.754    13.741    13.750
excite_mean     0.731     0.736     0.734
fracstop        1.000     1.000     1.000
cjmean          3.002     3.001     3.002

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       134.3     120.1     144.0
kozaiamp        180.0     180.0     180.0