Orbit Fit and Astrometric record for 535985

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: 535985    
# Created Fri Dec  3 02:08:05 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     99 observations of     99
# Arc:   7.06y
# First observation: 2012/12/31
#  Last observation: 2020/01/23
# Chi-squared of fit:   124.85 DOF:    192 RMS:  0.20
# Min/Max residuals:    -0.96    0.90
# Exact a, adot, b, bdot, g, gdot:
  2.470146E-05  9.647232E-02 -7.755955E-06 -2.933032E-02  6.164988E-02  3.419840E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
   24.240080   90.029021   -0.171183    0.396707   -0.880894  2456292.939268
# Heliocentric elements and errors
Epoch:              2456292.5000  =  2012/12/31
Mean Anomaly:           14.02555 +/-     0.000
Argument of Peri:      104.81820 +/-     0.000
Long of Asc Node:      322.33659 +/-     0.000
Inclination:            28.30337 +/-     0.000
Eccentricity:         0.17121596 +/-    0.0000
Semi-Major Axis:     20.46170858 +/-    0.0000
Time of Perihelion: 2454975.3699 +/-       0.0
Perihelion:          16.95833756 +/-    0.0000
Aphelion:            23.96507959 +/-    0.0000
Period (y)               92.5595 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -0.17827582 +/-    0.0000
Ecliptic Y           15.75902764 +/-    0.0000
Ecliptic Z            6.65941531 +/-    0.0000
Ecliptic XDOT        -0.00429079 +/-    0.0000
Ecliptic YDOT         0.00067241 +/-    0.0000
Ecliptic ZDOT        -0.00112522 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   17.10923225 +/-    0.0000
Geocenter to KBO     16.22065681 +/-    0.0000
# Hcoef:  9.88

The following table shows the complete astrometric record for 535985. 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 (535985) followed by the observatory code and reference code for the source of the astrometry.

2012 12  31.43849  06 00 09.433  +47 40 45.72  21.9G 535985    F51  C~2r7a      
2012 12  31.45209  06 00 09.201  +47 40 45.17  22.4G 535985    F51  C~2r7a      
2013 01  18.35923  05 55 37.344  +47 26 44.46  22.7G 535985    F51  C~2r7a      
2013 01  18.37083  05 55 37.197  +47 26 43.75  22.0G 535985    F51  C~2r7a      
2013 02  15.34767  05 50 55.294  +46 50 56.16  22.3G 535985    F51  C~2r7a      
2013 11  25.50850  06 40 44.910  +45 35 55.67  21.4G 535985    F51  C~2r7a      
2013 11  25.52228  06 40 44.748  +45 35 55.87  21.9G 535985    F51  C~2r7a      
2013 12  14.54330  06 36 20.183  +45 44 03.51  22.2G 535985    F51  C~2r7a      
2013 12  14.55335  06 36 20.030  +45 44 03.95  22.0G 535985    F51  C~2r7a      
2014 10  09.60572  07 11 29.930  +42 26 37.86  22.6G 535985    F51  C~2r7a      
2014 12  21.46236  07 03 23.183  +43 17 31.68  22.3w 535985    F51  C~1Ixw      
2014 12  21.47558  07 03 22.981  +43 17 31.59  22.0w 535985    F51  C~1Ixw      
2014 12  21.48880  07 03 22.774  +43 17 31.93  22.4w 535985    F51  C~1Ixw      
2014 12  21.50208  07 03 22.576  +43 17 32.10  22.1w 535985    F51  C~1Ixw      
2014 12  26.40404  07 02 08.78   +43 18 32.3   23.0R 535985    F51  C~1Ixw      
2014 12  26.41578  07 02 08.61   +43 18 32.3   23.1R 535985    F51  C~1Ixw      
2014 12  26.42751  07 02 08.446  +43 18 32.17  23.1G 535985    F51  C~2r7a      
2014 12  26.43926  07 02 08.249  +43 18 32.36  22.3G 535985    F51  C~2r7a      
2015 01  16.38663  06 56 46.054  +43 16 18.14  22.3w 535985    F51  C~1Ixw      
2015 01  16.39885  06 56 45.849  +43 16 17.56  22.3w 535985    F51  C~1Ixw      
2015 01  16.42323  06 56 45.439  +43 16 16.84  22.0w 535985    F51  C~1Ixw      
2015 01  17.37948  06 56 31.13   +43 15 56.0   22.1R 535985    291  C~1Ixw      
2015 01  17.42128  06 56 30.46   +43 15 54.8   21.8R 535985    291  C~1Ixw      
2015 01  18.35135  06 56 16.750  +43 15 31.67  22.1w 535985    F51  C~1Ixw      
2015 01  18.36399  06 56 16.547  +43 15 31.15  22.3w 535985    F51  C~1Ixw      
2015 01  18.37664  06 56 16.389  +43 15 31.18  22.2w 535985    F51  C~1Ixw      
2015 01  18.38934  06 56 16.176  +43 15 30.33  21.7w 535985    F51  C~1Ixw      
2015 02  16.23781  06 50 16.481  +42 53 49.10  22.2G 535985    F51  C~2r7a      
2015 02  16.24985  06 50 16.373  +42 53 48.49  22.3G 535985    F51  C~2r7a      
2015 02  16.26188  06 50 16.271  +42 53 47.86  22.2G 535985    F51  C~2r7a      
2015 02  16.27394  06 50 16.121  +42 53 47.16  22.1G 535985    F51  C~2r7a      
2015 02  17.23724  06 50 07.263  +42 52 45.53  22.3G 535985    F51  C~2r7a      
2015 02  17.24923  06 50 07.124  +42 52 45.00  22.0G 535985    F51  C~2r7a      
2015 02  17.26129  06 50 07.038  +42 52 43.97  22.3G 535985    F51  C~2r7a      
2015 03  16.12920  06 47 47.26   +42 18 52.9   22.1R 535985    G37  C~1OVC      
2015 03  16.19843  06 47 47.17   +42 18 46.9         535985    G37  C~1OVC      
2015 10  12.47073  07 35 45.13   +39 42 19.0   22.1R 535985    G37  C~2FaV      
2015 10  12.48615  07 35 45.20   +39 42 19.6         535985    G37  C~2FaV      
2015 11  08.42764  07 35 59.41   +40 00 26.1   21.9R 535985    G37  C~2FaV      
2015 11  08.49421  07 35 59.18   +40 00 29.2         535985    G37  C~2FaV      
2015 11  16.59822  07 35 20.881  +40 06 33.70  22.2G 535985    F51  C~2r7a      
2015 12  03.58102  07 33 02.461  +40 18 41.61  22.5G 535985    F51  C~2r7a      
2016 01  04.39256  07 26 09.055  +40 32 38.89  21.9w 535985    F51  C~2FaV      
2016 01  04.41554  07 26 08.754  +40 32 39.14  22.0w 535985    F51  C~2FaV      
2016 01  04.42709  07 26 08.554  +40 32 39.15  22.2w 535985    F51  C~2FaV      
2016 01  16.40499  07 23 10.945  +40 32 56.26  22.8G 535985    F51  C~2r7a      
2016 02  05.33626  07 18 34.358  +40 26 10.13  22.0G 535985    F51  C~2r7a      
2016 02  05.34811  07 18 34.205  +40 26 09.66  22.2G 535985    F51  C~2r7a      
2016 02  05.35994  07 18 34.058  +40 26 09.44  22.4G 535985    F51  C~2r7a      
2016 02  05.37179  07 18 33.879  +40 26 08.83  21.8G 535985    F51  C~2r7a      
2016 02  15.25677  07 16 38.461  +40 19 29.97  22.0G 535985    F51  C~2r7a      
2016 02  27.33806  07 14 46.600  +40 08 45.49  22.2G 535985    F51  C~2r7a      
2016 03  11.13323  07 13 29.70   +39 54 45.2   22.0R 535985    G37  C~1oa4      
2016 03  11.17352  07 13 29.52   +39 54 42.3         535985    G37  C~1oa4      
2016 03  11.18535  07 13 29.47   +39 54 41.5         535985    G37  C~1oa4      
2016 03  12.13081  07 13 25.65   +39 53 33.9   22.0R 535985    G37  C~1oa4      
2016 03  12.14238  07 13 25.61   +39 53 33.0         535985    G37  C~1oa4      
2016 03  12.23920  07 13 25.255  +39 53 26.28  22.6G 535985    F51  C~2r7a      
2016 03  12.25124  07 13 25.215  +39 53 25.21  22.5G 535985    F51  C~2r7a      
2016 03  12.26332  07 13 25.164  +39 53 24.37  22.9G 535985    F51  C~2r7a      
2016 03  12.27529  07 13 25.095  +39 53 23.39  22.1G 535985    F51  C~2r7a      
2016 11  06.61484  07 58 19.883  +36 55 49.99  22.3G 535985    F51  C~2r7a      
2016 11  06.62205  07 58 19.871  +36 55 50.40  22.6G 535985    F51  C~2r7a      
2016 11  06.62924  07 58 19.856  +36 55 50.50  22.5G 535985    F51  C~2r7a      
2016 11  06.63644  07 58 19.847  +36 55 50.85  22.7G 535985    F51  C~2r7a      
2016 11  13.59698  07 58 01.081  +37 00 12.94  23.1G 535985    F51  C~2r7a      
2016 12  24.42826  07 52 05.701  +37 25 30.73  22.0G 535985    F51  C~2r7a      
2016 12  24.43990  07 52 05.574  +37 25 31.02  21.8G 535985    F51  C~2r7a      
2016 12  24.45153  07 52 05.426  +37 25 31.49  22.6G 535985    F51  C~2r7a      
2016 12  24.46316  07 52 05.257  +37 25 31.83  22.0G 535985    F51  C~2r7a      
2017 01  03.46712  07 49 52.037  +37 29 31.37  22.4G 535985    F51  C~2r7a      
2017 01  03.47968  07 49 51.865  +37 29 31.64  22.3G 535985    F51  C~2r7a      
2017 01  03.49224  07 49 51.688  +37 29 31.92  22.1G 535985    F51  C~2r7a      
2017 01  29.39721  07 43 48.759  +37 31 32.51  22.0G 535985    F51  C~2r7a      
2017 01  29.40902  07 43 48.603  +37 31 32.24  22.4G 535985    F51  C~2r7a      
2017 01  29.42080  07 43 48.432  +37 31 32.12  21.8G 535985    F51  C~2r7a      
2017 01  29.43256  07 43 48.287  +37 31 32.08  21.9G 535985    F51  C~2r7a      
2017 03  18.24909  07 36 20.910  +36 59 57.29  22.4G 535985    F51  C~2r7a      
2017 03  18.26108  07 36 20.875  +36 59 56.52  22.1G 535985    F51  C~2r7a      
2017 03  18.27310  07 36 20.817  +36 59 55.80  22.2G 535985    F51  C~2r7a      
2017 03  18.28513  07 36 20.770  +36 59 54.92  22.4G 535985    F51  C~2r7a      
2017 10  28.60975  08 18 16.837  +33 39 12.15  21.9G 535985    F51  C~2r7a      
2017 10  28.61738  08 18 16.857  +33 39 12.48  22.2G 535985    F51  C~2r7a      
2017 10  28.63271  08 18 16.899  +33 39 12.51  22.1G 535985    F51  C~2r7a      
2017 12  11.47634  08 15 32.696  +34 02 01.95  23.1G 535985    F51  C~2r7a      
2017 12  11.48736  08 15 32.618  +34 02 02.44  22.4G 535985    F51  C~2r7a      
2017 12  13.46751  08 15 14.144  +34 03 13.02  22.3G 535985    F51  C~2r7a      
2017 12  13.47944  08 15 14.023  +34 03 13.50  22.6G 535985    F51  C~2r7a      
2017 12  13.49140  08 15 13.896  +34 03 13.98  22.2G 535985    F51  C~2r7a      
2018 01  13.42103  08 09 05.709  +34 17 58.00  22.3G 535985    F51  C~2r7a      
2018 04  10.13575  07 56 48.144  +33 37 11.24  22.3R 535985    G37  C~2bHJ      
2018 04  10.23470  07 56 48.205  +33 37 04.26        535985    G37  C~2bHJ      
2020 01  22.38213  08 44 35.818  +27 31 44.71  22.2w 535985    F51  C~3i5K      
2020 01  22.39359  08 44 35.686  +27 31 45.01  22.5w 535985    F51  C~3i5K      
2020 01  22.40500  08 44 35.528  +27 31 45.89  22.4w 535985    F51  C~3i5K      
2020 01  23.51986  08 44 21.783  +27 32 11.65  22.2w 535985    F51  C~3i5K      
2020 01  23.53122  08 44 21.622  +27 32 11.91  21.9w 535985    F51  C~3i5K      
2020 01  23.54260  08 44 21.493  +27 32 12.30  22.2w 535985    F51  C~3i5K      
2020 01  23.55408  08 44 21.328  +27 32 12.83  22.1w 535985    F51  C~3i5K      

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     0.05
     2   0.0000      0.00    -0.08       0.00    -0.05
     3   0.0491      0.00     0.13       0.00    -0.02
     4   0.0491      0.00     0.36       0.00    -0.02
     5   0.1257      0.00     0.09       0.00    -0.05
     6   0.9009      0.00    -0.10       0.00     0.16
     7   0.9010      0.00     0.03       0.00    -0.16
     8   0.9531      0.00    -0.06       0.00    -0.15
     9   0.9531      0.00    -0.00       0.00     0.17
    10   1.7718      0.00    -0.05       0.00     0.02
    11   1.9713      0.00     0.12       0.00     0.14
    12   1.9714      0.00     0.09       0.00    -0.16
    13   1.9714      0.00    -0.01       0.00    -0.03
    14   1.9714      0.00     0.03       0.00    -0.06
    15   1.9848      0.00    -0.40       0.00     0.06
    16   1.9849      0.00    -0.22       0.00    -0.05
    17   1.9849      0.00     0.06       0.00    -0.29
    18   1.9849      0.00    -0.16       0.00    -0.21
    19   2.0423      0.00     0.25       0.00     0.25
    20   2.0423      0.00    -0.02       0.00    -0.06
    21   2.0424      0.00    -0.58       0.00    -0.24
    22   2.0450      0.00    -0.37       0.00     0.90
    23   2.0451      0.00    -0.96       0.00     0.74
    24   2.0477      0.00     0.09       0.00    -0.00
    25   2.0477      0.00    -0.09       0.00    -0.21
    26   2.0477      0.00     0.41       0.00     0.13
    27   2.0478      0.00     0.09       0.00    -0.40
    28   2.1268      0.00     0.04       0.00    -0.16
    29   2.1268      0.00     0.16       0.00    -0.02
    30   2.1268      0.00     0.36       0.00     0.10
    31   2.1269      0.00    -0.14       0.00     0.16
    32   2.1295      0.00     0.22       0.00    -0.11
    33   2.1295      0.00    -0.18       0.00     0.12
    34   2.1296      0.00     0.22       0.00    -0.15
    35   2.2031      0.00    -0.16       0.00     0.34
    36   2.2033      0.00    -0.15       0.00     0.21
    37   2.7790      0.00    -0.02       0.00    -0.14
    38   2.7790      0.00     0.02       0.00    -0.07
    39   2.8528      0.00     0.02       0.00     0.36
    40   2.8530      0.00     0.32       0.00     0.46
    41   2.8752      0.00     0.11       0.00     0.08
    42   2.9217      0.00    -0.40       0.00    -0.11
    43   3.0088      0.00    -0.18       0.00     0.00
    44   3.0088      0.00     0.47       0.00     0.02
    45   3.0089      0.00     0.07       0.00    -0.08
    46   3.0417      0.00     0.23       0.00    -0.03
    47   3.0962      0.00     0.08       0.00     0.00
    48   3.0963      0.00     0.07       0.00    -0.07
    49   3.0963      0.00     0.15       0.00     0.11
    50   3.0963      0.00    -0.25       0.00    -0.10
    51   3.1234      0.00     0.03       0.00    -0.07
    52   3.1565      0.00     0.06       0.00    -0.20
    53   3.1915      0.00    -0.12       0.00     0.03
    54   3.1916      0.00    -0.15       0.00    -0.00
    55   3.1916      0.00    -0.12       0.00     0.05
    56   3.1942      0.00    -0.28       0.00     0.00
    57   3.1943      0.00    -0.16       0.00    -0.06
    58   3.1945      0.00     0.05       0.00     0.05
    59   3.1946      0.00     0.20       0.00    -0.15
    60   3.1946      0.00     0.18       0.00    -0.13
    61   3.1946      0.00    -0.12       0.00    -0.24
    62   3.8499      0.00    -0.05       0.00    -0.08
    63   3.8499      0.00    -0.02       0.00     0.07
    64   3.8499      0.00    -0.03       0.00    -0.10
    65   3.8500      0.00     0.04       0.00    -0.01
    66   3.8690      0.00    -0.03       0.00    -0.04
    67   3.9808      0.00    -0.20       0.00    -0.21
    68   3.9808      0.00     0.16       0.00    -0.25
    69   3.9809      0.00     0.20       0.00    -0.12
    70   3.9809      0.00    -0.07       0.00    -0.12
    71   4.0083      0.00    -0.06       0.00    -0.11
    72   4.0083      0.00     0.00       0.00    -0.08
    73   4.0084      0.00    -0.01       0.00    -0.04
    74   4.0793      0.00    -0.09       0.00     0.06
    75   4.0793      0.00     0.01       0.00    -0.08
    76   4.0793      0.00    -0.12       0.00    -0.07
    77   4.0794      0.00     0.14       0.00     0.03
    78   4.2103      0.00    -0.02       0.00    -0.06
    79   4.2103      0.00     0.17       0.00    -0.06
    80   4.2104      0.00     0.02       0.00    -0.01
    81   4.2104      0.00     0.03       0.00    -0.12
    82   4.8246      0.00    -0.15       0.00    -0.01
    83   4.8246      0.00    -0.06       0.00     0.16
    84   4.8246      0.00     0.15       0.00    -0.12
    85   4.9447      0.00    -0.16       0.00    -0.00
    86   4.9447      0.00     0.21       0.00     0.08
    87   4.9501      0.00     0.21       0.00    -0.08
    88   4.9501      0.00     0.14       0.00    -0.03
    89   4.9502      0.00    -0.01       0.00     0.02
    90   5.0349      0.00     0.16       0.00    -0.16
    91   5.2723      0.00     0.00       0.00     0.28
    92   5.2725      0.00    -0.36       0.00     0.17
    93   7.0580      0.00    -0.16       0.00    -0.11
    94   7.0581      0.00     0.01       0.00    -0.09
    95   7.0581      0.00    -0.21       0.00     0.51
    96   7.0611      0.00     0.30       0.00    -0.13
    97   7.0612      0.00     0.02       0.00    -0.13
    98   7.0612      0.00     0.23       0.00    -0.00
    99   7.0612      0.00    -0.08       0.00     0.27

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.

535985    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        20.497    20.497    20.497
ecceobj         0.172     0.172     0.172
incobj         28.299    28.299    28.299
qmin           16.606    16.756    16.772
qmax           24.013    24.013    24.013
amean          20.170    20.225    20.228
amin           19.874    20.022    20.020
amax           20.497    20.497    20.497
emean           0.166     0.165     0.165
emin            0.161     0.161     0.161
emax            0.173     0.172     0.172
imean          29.616    29.657    29.666
imin           29.454    29.611    29.611
imax           29.744    29.745    29.743
excite_mean     0.521     0.522     0.522
fracstop        0.002     0.001     0.001
cjmean          2.891     2.888     2.887

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       108.5     106.9     105.9
kozaiamp          5.1       4.3       3.6