Orbit Fit and Astrometric record for 17BE226

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: 17BE226   
# Created Sun Dec 22 02:10:54 2024
# Orbit generated from Bernstein formalism
# Fitting     52 observations of     53
# Arc:   2.04y
# First observation: 2017/01/21
#  Last observation: 2019/02/05
Preliminary a, adot, b, bdot, g, gdot:
  -0.000003   0.020280   0.000000  -0.004093   0.022059   0.000000
# Chi-squared of fit:    27.99 DOF:     98 RMS:  0.13
# Min/Max residuals:    -0.37    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.497386E-05  2.023776E-02 -3.027322E-06 -4.084808E-03  2.203392E-02  2.739904E-04
# Covariance matrix:
  6.6235E-14  2.3522E-14  1.3419E-15 -9.5722E-15  9.2766E-14  1.2858E-12
  2.3522E-14  7.9338E-13  1.3899E-14 -1.6786E-13  3.2135E-13  2.1986E-11
  1.3419E-15  1.3899E-14  3.4354E-14 -3.2131E-14  7.3900E-15  4.6328E-13
 -9.5722E-15 -1.6786E-13 -3.2131E-14  1.8285E-13 -7.3350E-14 -5.7052E-12
  9.2766E-14  3.2135E-13  7.3900E-15 -7.3350E-14  3.1882E-13  9.6845E-12
  1.2858E-12  2.1986E-11  4.6328E-13 -5.7052E-12  9.6845E-12  7.4676E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.302529  151.376067    0.497975   -0.122690   -0.842048  2457774.923961
# Heliocentric elements and errors
Epoch:              2457770.5000  =  2017/01/17
Mean Anomaly:            0.16672 +/-     2.286
Argument of Peri:      215.50095 +/-     2.439
Long of Asc Node:      295.88897 +/-     0.003
Inclination:            14.06223 +/-     0.001
Eccentricity:         0.03200957 +/-    0.0001
Semi-Major Axis:     47.75907126 +/-    0.0047
Time of Perihelion: 2457714.6700 +/-     765.6
Perihelion:          46.23032402 +/-    0.0064
Aphelion:            49.28781849 +/-    0.0066
Period (y)              330.0593 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.93228978 +/-    0.0010
Ecliptic Y           22.35408069 +/-    0.0006
Ecliptic Z           -6.55369459 +/-    0.0002
Ecliptic XDOT        -0.00116710 +/-    0.0000
Ecliptic YDOT        -0.00223301 +/-    0.0000
Ecliptic ZDOT        -0.00050722 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.23033207 +/-    0.0009
Geocenter to KBO     45.38456299 +/-    0.0012
# Hcoef:  7.82

The following table shows the complete astrometric record for 17BE226. 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 (17BE226) followed by the observatory code and reference code for the source of the astrometry.

2017 01  21.42316  10 01 48.74   +03 12 52.8   24.2z 17BE226   T09  C~7n3F      
2017 01  21.46362  10 01 48.60   +03 12 53.1   24.8z 17BE226   T09  C~7n3F      
2017 01  21.47848  10 01 48.53   +03 12 53.4   24.0z 17BE226   T09  C~7n3F      
2017 01  21.50455  10 01 48.44   +03 12 53.8   23.8z 17BE226   T09  C~7n3F      
2017 01  21.53071  10 01 48.34   +03 12 54.3   24.3z 17BE226   T09  C~7n3F      
2017 01  21.55293  10 01 48.25   +03 12 54.6   24.0z 17BE226   T09  C~7n3F      
2017 01  21.58938  10 01 48.11   +03 12 54.8   24.4z 17BE226   T09  C~7n3F      
2017 01  23.35766  10 01 41.40   +03 13 17.5   24.9r 17BE226   T09  C~7uj6      
2017 01  23.38262  10 01 41.31   +03 13 17.7   24.9r 17BE226   T09  C~7uj6      
2017 01  23.39135  10 01 41.26   +03 13 18.0   24.7r 17BE226   T09  C~7uj6      
2017 01  23.40520  10 01 41.22   +03 13 18.0   24.3r 17BE226   T09  C~7uj6      
2017 01  23.41887  10 01 41.17   +03 13 18.2   24.8r 17BE226   T09  C~7uj6      
2017 01  23.49071  10 01 40.89   +03 13 19.2   24.3i 17BE226   T09  C~7uj6      
2017 01  23.49878  10 01 40.82   +03 13 19.3   24.5i 17BE226   T09  C~7uj6      
2017 01  23.51343  10 01 40.79   +03 13 19.7   24.3i 17BE226   T09  C~7uj6      
2017 01  23.54000  10 01 40.68   +03 13 19.8   24.5i 17BE226   T09  C~7uj6      
2017 01  23.55452  10 01 40.64   +03 13 19.8   24.2i 17BE226   T09  C~7uj6      
2017 01  23.57524  10 01 40.54   +03 13 20.3   24.1i 17BE226   T09  C~7uj6      
2017 01  23.58486  10 01 40.50   +03 13 20.3   24.1i 17BE226   T09  C~7uj6      
2017 01  30.43188  10 01 13.36   +03 15 00.2   24.8i 17BE226   T09  C~7n3F      
2017 01  30.45397  10 01 13.29   +03 15 00.3   24.8i 17BE226   T09  C~7n3F      
2017 01  30.56119  10 01 12.83   +03 15 02.4   24.1z 17BE226   T09  C~7n3F      
2017 01  30.58702  10 01 12.71   +03 15 02.5   24.5z 17BE226   T09  C~7n3F      
2017 02  21.31699  09 59 40.46   +03 21 56.4   23.7z 17BE226   T09  C~7n3F      
2017 02  21.34253  09 59 40.35   +03 21 56.8   24.1z 17BE226   T09  C~7n3F      
2017 02  21.36806  09 59 40.25   +03 21 57.4   23.9z 17BE226   T09  C~7n3F      
2017 02  21.41563  09 59 40.02   +03 21 58.6   23.8z 17BE226   T09  C~7n3F      
2017 02  23.32864  09 59 31.83   +03 22 40.2   24.8g 17BE226   T09  C~7uj6      
2017 02  23.47596  09 59 31.19   +03 22 43.6   24.6r 17BE226   T09  C~7uj6      
2017 02  23.48959  09 59 31.14   +03 22 44.3   24.5r 17BE226   T09  C~7uj6      
2017 02  23.50705  09 59 31.07   +03 22 44.4   24.4r 17BE226   T09  C~7uj6      
2017 03  04.25993  09 58 54.25   +03 26 01.2   24.3z 17BE226   T09  C~7n3F      
2017 03  04.28551  09 58 54.14   +03 26 01.7   23.9z 17BE226   T09  C~7n3F      
2017 03  04.31098  09 58 54.05   +03 26 02.4   23.9z 17BE226   T09  C~7n3F      
2017 03  04.33650  09 58 53.94   +03 26 02.9   23.9z 17BE226   T09  C~7n3F      
2017 03  04.44888  09 58 53.48   +03 26 05.4   23.8i 17BE226   T09  C~7n3F      
2017 03  04.47080  09 58 53.38   +03 26 05.9   24.2i 17BE226   T09  C~7n3F      
2017 03  04.49253  09 58 53.29   +03 26 06.6   24.5i 17BE226   T09  C~7n3F      
2017 03  22.29262  09 57 45.40   +03 32 56.6   25.0g 17BE226   T09  C~7n3F      
2017 03  22.30641  09 57 45.35   +03 32 57.0   24.8g 17BE226   T09  C~7n3F      
2017 03  22.38390  09 57 45.08   +03 32 58.7   24.0z 17BE226   T09  C~7n3F      
2017 03  22.40964  09 57 44.99   +03 32 59.2   24.6z 17BE226   T09  C~7n3F      
2017 03  22.43533  09 57 44.90   +03 32 59.8   24.2z 17BE226   T09  C~7n3F      
2017 03  22.46098  09 57 44.81   +03 33 00.5   23.9z 17BE226   T09  C~7n3F      
2017 03  22.48274  09 57 44.73   +03 33 01.0   23.9z 17BE226   T09  C~7n3F      
2017 03  25.24137  09 57 35.46   +03 34 02.9   25.0r 17BE226   T09  C~7n3F      
2017 03  25.26876  09 57 35.38   +03 34 04.1   24.5r 17BE226   T09  C~7n3F      
2017 03  25.28248  09 57 35.33   +03 34 04.1   25.0r 17BE226   T09  C~7n3F      
2018 03  18.395092 10 02 02.04   +02 53 49.0   23.6i 17BE226   T09  C~81Bm      
2018 03  18.414230 10 02 01.98   +02 53 49.3         17BE226   T09  C~81Bm      
2018 03  18.429842 10 02 01.92   +02 53 49.6   23.7i 17BE226   T09  C~81Bm      
2019 02  05.394523 10 08 54.42   +02 01 13.8         17BE226   T09  C~81Bm      
2019 02  05.422693 10 08 54.31   +02 01 14.4         17BE226   T09  C~81Bm      

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     0.02
     2   0.0001     -2.07     0.19      -0.45    -0.09
     3   0.0002     -3.16    -0.03      -0.54    -0.05
     4   0.0002     -4.56     0.08      -0.63     0.07
     5   0.0003     -6.14     0.03      -0.69     0.24
     6   0.0004     -7.50    -0.05      -0.88     0.24
     7   0.0005     -9.54     0.04      -1.43     0.00
     8   0.0053   -111.62     0.01     -15.30     0.07
     9   0.0054   -112.96     0.15     -15.58    -0.01
    10   0.0054   -113.76    -0.13     -15.57     0.08
    11   0.0054   -114.32     0.13     -15.77    -0.02
    12   0.0055   -115.10     0.17     -15.85     0.02
    13   0.0057   -119.37     0.16     -16.38     0.07
    14   0.0057   -120.39    -0.37     -16.65    -0.14
    15   0.0057   -120.95    -0.06     -16.43     0.20
    16   0.0058   -122.53    -0.05     -16.92    -0.06
    17   0.0058   -123.09     0.25     -17.13    -0.16
    18   0.0059   -124.67    -0.09     -17.18    -0.04
    19   0.0059   -125.23    -0.08     -17.39    -0.17
    20   0.0247   -540.96    -0.10     -65.90     0.06
    21   0.0247   -541.98     0.29     -66.18    -0.06
    22   0.0250   -549.16    -0.07     -66.62     0.24
    23   0.0251   -550.88    -0.14     -67.15    -0.12
    24   0.0846  -1989.94    -0.03    -162.01    -0.17
    25   0.0847  -1991.62     0.04    -162.21    -0.31
    26   0.0847  -1993.23     0.19    -162.17    -0.20
    27   0.0849  -1996.88    -0.18    -162.25    -0.16
    28   0.0901  -2126.34    -0.13    -166.09    -0.19
    29   0.0905  -2136.51    -0.18    -166.25    -0.03
    30   0.0905  -2137.45    -0.19    -165.86     0.39
    31   0.0906  -2138.47    -0.01    -166.13     0.16
    32   0.1145  -2723.89    -0.15    -174.18    -0.02
    33   0.1146  -2725.61    -0.17    -174.29    -0.12
    34   0.1147  -2727.12     0.02    -174.10     0.07
    35   0.1148  -2728.84     0.01    -174.21    -0.03
    36   0.1151  -2736.16     0.19    -174.27    -0.04
    37   0.1151  -2737.74     0.07    -174.32    -0.09
    38   0.1152  -2739.25     0.01    -174.14     0.11
    39   0.1639  -3835.16     0.01    -144.52    -0.01
    40   0.1640  -3836.00    -0.04    -144.41     0.07
    41   0.1642  -3840.39     0.02    -144.22     0.03
    42   0.1642  -3841.82     0.06    -144.22    -0.05
    43   0.1643  -3843.30     0.05    -144.13    -0.03
    44   0.1644  -3844.80     0.01    -143.94     0.08
    45   0.1644  -3846.10    -0.05    -143.89     0.07
    46   0.1720  -3997.81     0.11    -134.27    -0.09
    47   0.1721  -3999.35 (   0.08)   -133.57 (   0.52)
    48   0.1721  -4000.06     0.13    -133.83     0.21
    49   1.1526    586.67    -0.16   -1001.90     0.02
    50   1.1526    585.72     0.06   -1001.94    -0.06
    51   1.1527    584.78     0.06   -1001.97    -0.13
    52   2.0396   7483.92    -0.03   -1792.08    -0.03
    53   2.0397   7482.16     0.05   -1792.09     0.12

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.

17BE226    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        47.530    47.550    47.511
ecceobj         0.027     0.028     0.026
incobj         14.055    14.055    14.054
qmin           45.269    45.183    45.330
qmax           50.140    50.269    49.937
amean          47.578    47.596    47.560
amin           47.189    47.215    47.180
amax           47.978    47.993    47.942
emean           0.030     0.032     0.029
emin            0.018     0.019     0.017
emax            0.045     0.048     0.042
imean          15.631    15.630    15.633
imin           15.374    15.363    15.377
imax           15.846    15.842    15.849
excite_mean     0.271     0.271     0.271
fracstop        1.000     1.000     1.000
cjmean          3.052     3.052     3.052

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       199.4     200.5     196.8
kozaiamp        179.9     180.0     180.0