Orbit Fit and Astrometric record for 13AT183

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: 13AT183   
# Created Fri Dec  3 02:11:32 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     84 observations of     84
# Arc:  15.04y
# First observation: 2003/01/29
#  Last observation: 2018/02/12
# Chi-squared of fit:   100.88 DOF:    162 RMS:  0.19
# Min/Max residuals:    -0.61    0.59
# Exact a, adot, b, bdot, g, gdot:
  1.137695E-05  1.226728E-02 -5.521910E-06 -6.493693E-03  1.773238E-02  6.329476E-03
# Covariance matrix:
  4.4039E-13 -7.0598E-14 -7.2282E-14  2.4303E-14 -4.7509E-14 -2.4011E-13
 -7.0598E-14  1.8622E-14  2.6431E-14 -8.8860E-15  2.5902E-14  8.7707E-14
 -7.2282E-14  2.6431E-14  3.4426E-13 -3.8687E-14  4.6052E-14  1.4136E-13
  2.4303E-14 -8.8860E-15 -3.8687E-14  6.9219E-15 -1.5478E-14 -4.7523E-14
 -4.7509E-14  2.5902E-14  4.6052E-14 -1.5478E-14  1.0782E-13  1.5214E-13
 -2.4011E-13  8.7707E-14  1.4136E-13 -4.7523E-14  1.5214E-13  4.6893E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.665485  119.470910   -0.160245    0.044977   -0.966105  2452668.662699
# Heliocentric elements and errors
Epoch:              2452668.5000  =  2003/01/29
Mean Anomaly:           55.15256 +/-     0.006
Argument of Peri:       69.86286 +/-     0.006
Long of Asc Node:      304.58366 +/-     0.000
Inclination:            27.92460 +/-     0.000
Eccentricity:         0.42273306 +/-    0.0000
Semi-Major Axis:     62.43644816 +/-    0.0040
Time of Perihelion: 2425061.5229 +/-       4.0
Perihelion:          36.04249752 +/-    0.0032
Aphelion:            88.83039881 +/-    0.0061
Period (y)              493.3618 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.33224479 +/-    0.0005
Ecliptic Y           49.81134315 +/-    0.0009
Ecliptic Z            2.62227676 +/-    0.0001
Ecliptic XDOT        -0.00215907 +/-    0.0000
Ecliptic YDOT        -0.00004567 +/-    0.0000
Ecliptic ZDOT        -0.00095589 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   57.36484714 +/-    0.0008
Geocenter to KBO     56.39371361 +/-    0.0010
# Hcoef:  4.84

The following table shows the complete astrometric record for 13AT183. 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 (13AT183) followed by the observatory code and reference code for the source of the astrometry.

2003 01  29.161956 08 08 56.00   +22 52 02.6   22.4V 13AT183   645  C~1x8T      
2003 01  29.162785 08 08 56.00   +22 52 02.6   22.0V 13AT183   645  C~1x8T      
2003 01  29.165273 08 08 56.00   +22 52 02.6   22.9V 13AT183   645  C~1x8T      
2011 01  30.46977  08 28 24.395  +18 53 31.25  22.8w 13AT183   F51  C~1w3t      
2011 01  30.48495  08 28 24.344  +18 53 31.63  22.8w 13AT183   F51  C~1w3t      
2011 01  30.50124  08 28 24.297  +18 53 31.80  22.8w 13AT183   F51  C~1w3t      
2011 01  30.51635  08 28 24.227  +18 53 31.73  22.6w 13AT183   F51  C~1w3t      
2012 01  26.50324  08 30 55.226  +18 24 02.35  22.2i 13AT183   F51  C~1w3t      
2012 01  26.51615  08 30 55.165  +18 24 02.47  23.1G 13AT183   F51  C~36nY      
2012 02  01.52857  08 30 32.625  +18 25 01.84  22.4g 13AT183   F51  C~1w3t      
2012 02  26.27476  08 29 06.153  +18 28 49.66  21.7i 13AT183   F51  C~1w3t      
2013 01  10.53239  08 34 04.017  +17 52 57.78  22.5w 13AT183   F51  C~1w3t      
2013 01  10.54624  08 34 03.946  +17 52 57.64  22.5w 13AT183   F51  C~1w3t      
2013 01  10.56011  08 34 03.901  +17 52 57.79  22.5w 13AT183   F51  C~1w3t      
2013 01  10.57396  08 34 03.843  +17 52 58.13  22.7w 13AT183   F51  C~1w3t      
2013 02  10.42066  08 32 10.529  +17 58 04.97  22.7w 13AT183   F51  C~1w3t      
2013 02  10.43611  08 32 10.517  +17 58 05.22  22.3w 13AT183   F51  C~1w3t      
2013 02  10.45156  08 32 10.461  +17 58 05.40  22.6w 13AT183   F51  C~1w3t      
2013 02  10.46701  08 32 10.411  +17 58 05.57  22.3w 13AT183   F51  C~1w3t      
2013 03  03.25276  08 31 02.438  +18 01 08.82  22.4w 13AT183   F51  C~1w3t      
2013 03  03.26709  08 31 02.375  +18 01 08.63  22.7w 13AT183   F51  C~1w3t      
2013 05  10.25717  08 29 59.777  +18 02 03.30  23.0G 13AT183   F51  C~36nY      
2013 05  10.26133  08 29 59.793  +18 02 03.60  22.6G 13AT183   F51  C~36nY      
2013 05  10.26550  08 29 59.773  +18 02 03.45  23.7G 13AT183   F51  C~36nY      
2013 05  10.26966  08 29 59.796  +18 02 03.48  22.6w 13AT183   F51  C~1w3t      
2013 12  31.56305  08 36 49.094  +17 23 05.48  22.4w 13AT183   F51  C~1w3t      
2013 12  31.57767  08 36 49.009  +17 23 05.52  22.1G 13AT183   F51  C~36nY      
2014 02  23.26433  08 33 39.184  +17 31 46.97  22.3w 13AT183   F51  C~1w3t      
2014 02  23.28944  08 33 39.076  +17 31 46.89  22.6w 13AT183   F51  C~1w3t      
2014 02  26.41676  08 33 29.209  +17 32 14.83  22.5w 13AT183   F51  C~1w3t      
2014 02  26.42976  08 33 29.171  +17 32 14.69  22.3w 13AT183   F51  C~1w3t      
2014 02  26.44277  08 33 29.115  +17 32 14.90  22.6w 13AT183   F51  C~1w3t      
2014 05  21.26195  08 32 26.286  +17 33 01.23  23.3G 13AT183   F51  C~36nY      
2014 12  21.60552  08 39 27.794  +16 53 43.56  22.9G 13AT183   F51  C~36nY      
2015 01  16.53207  08 38 03.158  +16 57 20.13  22.5G 13AT183   F51  C~36nY      
2015 01  16.54427  08 38 03.122  +16 57 20.34  22.9G 13AT183   F51  C~36nY      
2015 01  16.55656  08 38 03.087  +16 57 20.47  22.5G 13AT183   F51  C~36nY      
2015 01  16.56885  08 38 03.032  +16 57 20.54  22.3G 13AT183   F51  C~36nY      
2015 03  16.37586  08 34 50.524  +17 06 31.35  22.8G 13AT183   F51  C~36nY      
2015 03  16.38816  08 34 50.495  +17 06 31.54  22.7G 13AT183   F51  C~36nY      
2015 03  16.40037  08 34 50.463  +17 06 31.51  22.6G 13AT183   F51  C~36nY      
2015 03  16.41256  08 34 50.423  +17 06 31.56  23.0G 13AT183   F51  C~36nY      
2015 03  17.35219  08 34 48.335  +17 06 37.38  21.9G 13AT183   F51  C~36nY      
2015 03  17.36469  08 34 48.270  +17 06 37.58  22.8G 13AT183   F51  C~36nY      
2015 03  17.37720  08 34 48.222  +17 06 37.96  22.4G 13AT183   F51  C~36nY      
2015 03  17.38980  08 34 48.209  +17 06 37.75  22.7G 13AT183   F51  C~36nY      
2015 04  10.32795  08 34 11.210  +17 08 08.95  23.2G 13AT183   F51  C~36nY      
2015 04  10.33976  08 34 11.248  +17 08 09.20  22.4G 13AT183   F51  C~36nY      
2015 10  15.57906  08 42 27.400  +16 27 50.85  22.5G 13AT183   F51  C~36nY      
2015 10  15.58294  08 42 27.388  +16 27 50.85  22.7G 13AT183   F51  C~36nY      
2015 10  15.58681  08 42 27.383  +16 27 50.84  22.8G 13AT183   F51  C~36nY      
2015 10  15.59069  08 42 27.406  +16 27 50.43  23.1G 13AT183   F51  C~36nY      
2016 01  03.41487  08 40 55.175  +16 27 23.85  22.8G 13AT183   F51  C~36nY      
2016 01  03.42650  08 40 55.112  +16 27 23.97  22.5G 13AT183   F51  C~36nY      
2016 01  29.52680  08 39 23.531  +16 31 36.92  21.4G 13AT183   F51  C~36nY      
2016 02  09.33140  08 38 44.671  +16 33 30.78  23.2G 13AT183   F51  C~36nY      
2016 02  09.35582  08 38 44.566  +16 33 31.61  22.6G 13AT183   F51  C~36nY      
2016 02  09.36805  08 38 44.538  +16 33 31.39  22.3G 13AT183   F51  C~36nY      
2016 03  03.24077  08 37 30.007  +16 37 14.84  22.6G 13AT183   F51  C~36nY      
2016 03  03.25240  08 37 29.952  +16 37 15.05  23.0G 13AT183   F51  C~36nY      
2016 03  03.26589  08 37 29.923  +16 37 15.11  23.2G 13AT183   F51  C~36nY      
2016 03  03.27757  08 37 29.896  +16 37 15.29  22.9G 13AT183   F51  C~36nY      
2016 05  02.29327  08 36 15.802  +16 40 18.62  23.3G 13AT183   F51  C~36nY      
2016 11  08.55548  08 44 42.641  +15 57 31.15  23.6G 13AT183   F51  C~36nY      
2016 11  10.58320  08 44 42.009  +15 57 22.89  22.4G 13AT183   F51  C~36nY      
2016 11  10.59485  08 44 41.991  +15 57 22.81  22.4G 13AT183   F51  C~36nY      
2016 11  10.60647  08 44 41.988  +15 57 22.96  22.2G 13AT183   F51  C~36nY      
2016 11  10.61806  08 44 41.969  +15 57 23.06  22.3G 13AT183   F51  C~36nY      
2017 02  18.25086  08 40 16.339  +16 07 35.20  22.1G 13AT183   F51  C~36nY      
2017 02  18.28110  08 40 16.256  +16 07 35.58  22.2G 13AT183   F51  C~36nY      
2017 11  22.55011  08 46 33.009  +15 29 42.20  23.0G 13AT183   F51  C~36nY      
2017 11  22.56087  08 46 33.003  +15 29 42.30  23.1G 13AT183   F51  C~36nY      
2017 11  22.57172  08 46 33.002  +15 29 42.67  23.0G 13AT183   F51  C~36nY      
2017 11  22.58261  08 46 32.986  +15 29 42.00  23.5G 13AT183   F51  C~36nY      
2017 12  12.48697  08 45 59.221  +15 30 10.40  22.4G 13AT183   F51  C~36nY      
2017 12  12.49909  08 45 59.194  +15 30 10.13  22.5G 13AT183   F51  C~36nY      
2017 12  12.51138  08 45 59.134  +15 30 10.93  22.4G 13AT183   F51  C~36nY      
2018 01  16.39438  08 44 15.304  +15 34 22.27  21.8G 13AT183   F51  C~36nY      
2018 01  16.40343  08 44 15.281  +15 34 22.24  22.8G 13AT183   F51  C~36nY      
2018 01  20.50464  08 44 00.875  +15 35 03.52  22.6G 13AT183   F51  C~36nY      
2018 01  20.51685  08 44 00.839  +15 35 03.24  22.7G 13AT183   F51  C~36nY      
2018 01  20.52907  08 44 00.804  +15 35 03.63  23.1G 13AT183   F51  C~36nY      
2018 01  20.54134  08 44 00.756  +15 35 03.84  22.2G 13AT183   F51  C~36nY      
2018 02  12.47106  08 42 39.516  +15 39 09.70  23.5G 13AT183   F51  C~36nY      

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    -0.11       0.00    -0.03
     2   0.0000      0.00    -0.06       0.00    -0.04
     3   0.0000      0.00     0.09       0.00    -0.06
     4   8.0036      0.00    -0.11       0.00    -0.11
     5   8.0036      0.00     0.00       0.00     0.12
     6   8.0037      0.00     0.23       0.00     0.13
     7   8.0037      0.00     0.05       0.00    -0.08
     8   8.9920      0.00     0.04       0.00     0.13
     9   8.9921      0.00    -0.13       0.00     0.13
    10   9.0085      0.00    -0.16       0.00    -0.61
    11   9.0763      0.00    -0.26       0.00     0.02
    12   9.9504      0.00     0.31       0.00     0.21
    13   9.9504      0.00     0.00       0.00    -0.06
    14   9.9504      0.00     0.08       0.00    -0.04
    15   9.9505      0.00    -0.03       0.00     0.17
    16  10.0349      0.00    -0.60       0.00    -0.10
    17  10.0350      0.00     0.07       0.00    -0.00
    18  10.0350      0.00     0.07       0.00     0.03
    19  10.0351      0.00     0.16       0.00     0.05
    20  10.0920      0.00     0.09       0.00     0.32
    21  10.0920      0.00    -0.22       0.00     0.02
    22  10.2782      0.00    -0.01       0.00    -0.04
    23  10.2782      0.00     0.16       0.00     0.29
    24  10.2782      0.00    -0.22       0.00     0.17
    25  10.2782      0.00     0.05       0.00     0.23
    26  10.9224      0.00     0.01       0.00     0.10
    27  10.9224      0.00    -0.54       0.00     0.02
    28  11.0694      0.00     0.43       0.00     0.23
    29  11.0695      0.00     0.04       0.00    -0.08
    30  11.0780      0.00     0.16       0.00     0.31
    31  11.0781      0.00     0.20       0.00     0.06
    32  11.0781      0.00    -0.02       0.00     0.16
    33  11.3076      0.00    -0.25       0.00     0.07
    34  11.8944      0.00     0.03       0.00    -0.17
    35  11.9654      0.00    -0.09       0.00    -0.18
    36  11.9655      0.00     0.03       0.00    -0.08
    37  11.9655      0.00     0.18       0.00    -0.07
    38  11.9655      0.00     0.02       0.00    -0.12
    39  12.1265      0.00     0.06       0.00    -0.08
    40  12.1266      0.00     0.06       0.00     0.03
    41  12.1266      0.00     0.01       0.00    -0.07
    42  12.1266      0.00    -0.16       0.00    -0.10
    43  12.1292      0.00     0.46       0.00    -0.19
    44  12.1292      0.00    -0.08       0.00    -0.07
    45  12.1293      0.00    -0.37       0.00     0.23
    46  12.1293      0.00    -0.13       0.00    -0.05
    47  12.1948      0.00    -0.26       0.00    -0.14
    48  12.1949      0.00     0.46       0.00     0.10
    49  12.7102      0.00     0.36       0.00    -0.17
    50  12.7103      0.00     0.10       0.00    -0.13
    51  12.7103      0.00    -0.05       0.00    -0.10
    52  12.7103      0.00     0.22       0.00    -0.48
    53  12.9288      0.00     0.25       0.00    -0.13
    54  12.9289      0.00    -0.12       0.00    -0.11
    55  13.0003      0.00    -0.04       0.00     0.07
    56  13.0299      0.00     0.15       0.00    -0.22
    57  13.0300      0.00    -0.11       0.00     0.35
    58  13.0300      0.00     0.13       0.00    -0.00
    59  13.0926      0.00     0.10       0.00    -0.06
    60  13.0927      0.00    -0.22       0.00     0.04
    61  13.0927      0.00    -0.06       0.00    -0.02
    62  13.0927      0.00     0.05       0.00     0.06
    63  13.2570      0.00     0.26       0.00    -0.08
    64  13.7779      0.00     0.21       0.00    -0.24
    65  13.7835      0.00    -0.05       0.00    -0.17
    66  13.7835      0.00    -0.24       0.00    -0.21
    67  13.7836      0.00    -0.21       0.00    -0.01
    68  13.7836      0.00    -0.42       0.00     0.13
    69  14.0564      0.00    -0.27       0.00     0.15
    70  14.0565      0.00     0.01       0.00     0.21
    71  14.8156      0.00    -0.13       0.00     0.02
    72  14.8156      0.00    -0.04       0.00     0.13
    73  14.8156      0.00     0.14       0.00     0.51
    74  14.8157      0.00     0.09       0.00    -0.15
    75  14.8702      0.00     0.06       0.00     0.16
    76  14.8702      0.00     0.07       0.00    -0.16
    77  14.8702      0.00    -0.40       0.00     0.59
    78  14.9657      0.00    -0.20       0.00    -0.01
    79  14.9658      0.00    -0.07       0.00    -0.13
    80  14.9770      0.00    -0.06       0.00    -0.00
    81  14.9770      0.00     0.06       0.00    -0.41
    82  14.9770      0.00     0.20       0.00    -0.14
    83  14.9771      0.00     0.14       0.00    -0.05
    84  15.0399      0.00    -0.04       0.00     0.16

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.

13AT183    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        62.355    62.356    62.355
ecceobj         0.427     0.427     0.427
incobj         28.024    28.024    28.024
qmin           34.986    34.998    34.986
qmax           90.429    90.438    90.438
amean          62.035    62.038    62.036
amin           61.328    61.356    61.312
amax           63.113    62.995    63.008
emean           0.416     0.416     0.416
emin            0.396     0.396     0.396
emax            0.436     0.436     0.436
imean          29.892    29.894    29.893
imin           29.269    29.279    29.265
imax           30.756    30.746    30.749
excite_mean     0.649     0.649     0.649
fracstop        1.000     1.000     1.000
cjmean          2.748     2.748     2.748

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       173.5     173.4     173.6
kozaiamp        180.0     180.0     179.9