Orbit Fit and Astrometric record for 15836

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: 15836     
# Created Thu Sep 23 01:06:54 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     82 observations of     82
# Arc:  24.92y
# First observation: 1995/02/24
#  Last observation: 2020/01/25
# Chi-squared of fit:   717.57 DOF:    158 RMS:  0.52
# Min/Max residuals:    -1.67    1.83
# Exact a, adot, b, bdot, g, gdot:
  1.611123E-05  3.352668E-02  5.046506E-07  3.851615E-03  3.026366E-02  5.845564E-04
# 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
    0.046809  127.101056   -0.463140    0.000706   -0.879512  2449772.757908
# Heliocentric elements and errors
Epoch:              2449772.5000  =  1995/02/24
Mean Anomaly:           22.41843 +/-     0.000
Argument of Peri:      334.57197 +/-     0.000
Long of Asc Node:      127.49350 +/-     0.000
Inclination:             6.56199 +/-     0.000
Eccentricity:         0.07158873 +/-    0.0000
Semi-Major Axis:     36.29054036 +/-    0.0000
Time of Perihelion: 2444799.8112 +/-       0.0
Perihelion:          33.69254667 +/-    0.0000
Aphelion:            38.88853406 +/-    0.0000
Period (y)              218.6243 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -20.83125722 +/-    0.0000
Ecliptic Y           26.76843855 +/-    0.0000
Ecliptic Z            0.02700962 +/-    0.0000
Ecliptic XDOT        -0.00244384 +/-    0.0000
Ecliptic YDOT        -0.00178901 +/-    0.0000
Ecliptic ZDOT         0.00034831 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.91887612 +/-    0.0000
Geocenter to KBO     33.04296039 +/-    0.0000
# Hcoef:  8.04

The following table shows the complete astrometric record for 15836. 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 (15836) followed by the observatory code and reference code for the source of the astrometry.

1995 02  24.2572   08 38 03.08   +18 32 32.5   23.0R 15836     568  A24813      
1995 02  24.2972   08 38 02.89   +18 32 33.5         15836     568  A24813      
1995 02  24.3359   08 38 02.69   +18 32 34.3         15836     568  A24813      
1995 02  24.4604   08 38 02.00   +18 32 37.0         15836     568  A24813      
1995 02  25.3718   08 37 57.30   +18 32 56.4         15836     568  A24813      
1995 02  25.4050   08 37 57.09   +18 32 56.9         15836     568  A24813      
1995 02  26.2409   08 37 52.84   +18 33 15.0         15836     568  A24813      
1995 02  26.2967   08 37 52.59   +18 33 15.7         15836     568  A24813      
1995 03  24.2445   08 36 07.92   +18 40 38.3         15836     568  C26263      
1995 03  24.4144   08 36 07.46   +18 40 40.3         15836     568  C26263      
1995 03  30.39924  08 35 52.81   +18 41 47.9         15836     413  C24958      
1995 03  30.46524  08 35 52.65   +18 41 48.2         15836     413  C24958      
1995 03  31.8820   08 35 49.65   +18 42 01.5         15836     950  C25182      
1995 03  31.9770   08 35 49.54   +18 42 02.6         15836     950  C25182      
1995 04  01.8741   08 35 47.84   +18 42 10.3         15836     950  C25182      
1995 04  01.9792   08 35 47.65   +18 42 11.1   23.5R 15836     950  C25029      
1995 04  04.25196  08 35 43.84   +18 42 32.2         15836     568  C26263      
1995 04  04.38019  08 35 43.60   +18 42 33.2         15836     568  C26263      
1995 04  05.23720  08 35 42.33   +18 42 39.3         15836     568  C26263      
1995 04  05.36868  08 35 42.17   +18 42 40.0         15836     568  C26263      
1995 12  23.50123  08 51 59.56   +17 49 49.1         15836     568  C26491      
1995 12  23.53149  08 51 59.41   +17 49 49.8         15836     568  C26491      
1995 12  24.51484  08 51 55.09   +17 50 09.9         15836     568  C26491      
1996 01  21.21469  08 49 26.91   +18 01 09.5         15836     675  C26659      
1996 01  21.26059  08 49 26.61   +18 01 11.3         15836     675  C26660      
1996 01  21.35877  08 49 26.01   +18 01 13.6         15836     675  C26660      
1996 01  21.39750  08 49 25.80   +18 01 14.7         15836     675  C26660      
1996 01  23.41825  08 49 13.77   +18 02 07.6         15836     675  C26660      
1996 01  23.45556  08 49 13.50   +18 02 08.2         15836     675  C26660      
1997 03  13.09311  08 52 41.63   +18 03 36.8         15836     711  C29556      
1997 03  13.10179  08 52 41.59   +18 03 37.1         15836     711  C29556      
1997 03  13.10983  08 52 41.56   +18 03 36.1         15836     711  C29556      
1997 03  13.11757  08 52 41.48   +18 03 37.3         15836     711  C29556      
1997 03  13.16230  08 52 41.31   +18 03 37.8         15836     711  C29556      
1997 03  13.17014  08 52 41.32   +18 03 38.4         15836     711  C29556      
1997 03  13.17810  08 52 41.24   +18 03 37.9         15836     711  C29556      
1997 03  13.19344  08 52 41.13   +18 03 38.5         15836     711  C29556      
1999 01  15.39035  09 13 48.17   +16 59 07.2         15836     696  Ca3582      
1999 01  15.45215  09 13 47.80   +16 59 09.3         15836     696  Ca3582      
1999 01  15.51403  09 13 47.38   +16 59 12.0         15836     696  Ca3582      
2000 02  06.31074  09 19 34.90   +16 47 29.9   22.6R 15836     695  Cb0719      
2000 02  06.43987  09 19 34.10   +16 47 34.1         15836     695  Cb0719      
2002 02  06.23543  09 35 09.22   +16 00 42.9   22.6R 15836     695  Cf0778      
2002 02  06.33136  09 35 08.63   +16 00 46.2         15836     695  Cf0778      
2002 02  07.29054  09 35 03.11   +16 01 15.8         15836     695  Cf0778      
2006 01  06.443265 10 08 11.88   +13 59 47.7         15836     645  C~1bXW      
2006 01  06.444095 10 08 11.88   +13 59 47.7         15836     645  C~1bXW      
2006 01  06.446582 10 08 11.87   +13 59 47.7         15836     645  C~1bXX      
2008 12  22.42610  10 30 51.47   +12 27 32.5   21.9r 15836     695  C~0hlJ      
2008 12  22.51837  10 30 51.31   +12 27 34.0   22.0r 15836     695  C~0hlJ      
2012 02  16.519192 10 48 56.303  +11 21 07.50  23.5G 15836     F51  C~41Gb      
2012 02  16.533856 10 48 56.221  +11 21 08.39  23.6G 15836     F51  C~41Gb      
2012 02  16.548528 10 48 56.157  +11 21 08.62  23.9G 15836     F51  C~41Gb      
2012 02  16.563230 10 48 56.100  +11 21 09.63  23.3G 15836     F51  C~41Gb      
2012 03  13.386196 10 46 35.936  +11 36 00.41  22.8G 15836     F51  C~41Gb      
2013 02  14.395357 10 56 12.968  +10 48 15.97  23.7G 15836     F51  C~41Gb      
2013 02  14.409906 10 56 12.887  +10 48 16.35  22.9G 15836     F51  C~41Gb      
2013 02  14.424523 10 56 12.822  +10 48 16.76  23.4G 15836     F51  C~41Gb      
2013 02  14.439238 10 56 12.732  +10 48 17.63  23.5G 15836     F51  C~41Gb      
2014 05  21.289760 10 57 05.215  +10 51 36.37  23.3G 15836     F51  C~41Gb      
2014 06  19.269985 10 57 39.276  +10 45 33.15  23.9G 15836     F51  C~41Gb      
2015 01  27.644339 11 11 44.618  +09 32 25.34  23.0G 15836     F51  C~41Gb      
2015 02  16.436880 11 10 15.472  +09 43 33.10  23.5G 15836     F51  C~41Gb      
2015 02  18.28093  11 10 06.16   +09 44 39.4   23.1R 15836     695  C~1MFS      
2015 02  18.37191  11 10 05.71   +09 44 42.4         15836     695  C~1MFS      
2015 02  18.46424  11 10 05.21   +09 44 46.0         15836     695  C~1MFS      
2015 04  18.435534 11 05 13.900  +10 14 57.14  23.5G 15836     F51  C~41Gb      
2016 02  04.447941 11 18 12.614  +09 03 04.00  23.9G 15836     F51  C~41Gb      
2016 03  29.303522 11 13 38.917  +09 33 58.60  23.0G 15836     F51  C~41Gb      
2016 03  29.316020 11 13 38.859  +09 33 59.07  23.7G 15836     F51  C~41Gb      
2016 03  29.328537 11 13 38.784  +09 33 59.37  23.9G 15836     F51  C~41Gb      
2016 03  29.341141 11 13 38.725  +09 34 00.02  23.2G 15836     F51  C~41Gb      
2017 03  28.453132 11 20 43.006  +08 59 51.09  23.2G 15836     F51  C~41Gb      
2017 04  20.273130 11 19 01.725  +09 09 31.87  24.0G 15836     F51  C~41Gb      
2018 03  10.421920 11 29 14.520  +08 15 38.55  23.1G 15836     F51  C~41Gb      
2018 03  19.187274 11 28 27.93   +08 20 46.2         15836     W84  C~3dfi      
2018 03  19.188588 11 28 27.92   +08 20 46.2         15836     W84  C~3dfi      
2019 01  07.650551 11 40 03.123  +07 09 19.37  22.9G 15836     F51  C~41Gb      
2019 02  04.517032 11 38 49.353  +07 21 15.58  23.8G 15836     F51  C~41Gb      
2019 04  03.333184 11 34 04.065  +07 54 33.87  23.3G 15836     F51  C~41Gb      
2019 12  27.602262 11 46 50.005  +06 32 42.20  23.4G 15836     F51  C~41Gb      
2020 01  25.571291 11 46 08.746  +06 41 51.88  23.3G 15836     F51  C~41Gb      

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     0.38       0.00     0.23
     2   0.0001      0.00     0.72       0.00     0.35
     3   0.0002      0.00     0.82       0.00     0.31
     4   0.0006      0.00     0.42       0.00     0.32
     5   0.0031      0.00     0.76       0.00     0.10
     6   0.0031      0.00     0.23       0.00    -0.10
     7   0.0054      0.00     0.59       0.00     0.22
     8   0.0056      0.00     1.19       0.00    -0.27
     9   0.0766      0.00     0.40       0.00    -0.55
    10   0.0771      0.00     0.85       0.00    -0.63
    11   0.0935      0.00     0.79       0.00     0.22
    12   0.0937      0.00     0.58       0.00    -0.12
    13   0.0975      0.00    -1.36       0.00    -0.11
    14   0.0978      0.00    -0.10       0.00     0.13
    15   0.1003      0.00    -0.37       0.00    -0.28
    16   0.1005      0.00    -0.19       0.00    -0.39
    17   0.1068      0.00     0.15       0.00     1.81
    18   0.1071      0.00    -0.27       0.00     1.83
    19   0.1095      0.00    -0.33       0.00     1.43
    20   0.1098      0.00     0.30       0.00     1.18
    21   0.8275      0.00    -0.88       0.00    -0.34
    22   0.8276      0.00    -1.09       0.00    -0.26
    23   0.8303      0.00    -0.64       0.00    -0.15
    24   0.9061      0.00    -0.21       0.00    -0.28
    25   0.9062      0.00    -0.56       0.00     0.31
    26   0.9065      0.00    -0.64       0.00     0.04
    27   0.9066      0.00    -0.26       0.00     0.14
    28   0.9121      0.00     0.85       0.00     0.35
    29   0.9122      0.00     0.21       0.00    -0.02
    30   2.0475      0.00    -0.21       0.00    -0.66
    31   2.0475      0.00    -0.26       0.00    -0.53
    32   2.0475      0.00    -0.19       0.00    -1.67
    33   2.0475      0.00    -0.90       0.00    -0.62
    34   2.0477      0.00    -0.59       0.00    -0.95
    35   2.0477      0.00     0.06       0.00    -0.49
    36   2.0477      0.00    -0.63       0.00    -1.14
    37   2.0477      0.00    -1.30       0.00    -0.82
    38   3.8909      0.00     0.30       0.00    -0.81
    39   3.8910      0.00    -0.11       0.00    -0.38
    40   3.8912      0.00    -1.27       0.00     0.64
    41   4.9502      0.00     0.51       0.00     0.23
    42   4.9505      0.00     0.14       0.00     0.66
    43   6.9513      0.00     0.63       0.00     0.12
    44   6.9516      0.00     0.28       0.00     0.45
    45   6.9542      0.00     1.14       0.00     0.49
    46  10.8670      0.00     0.28       0.00    -0.13
    47  10.8670      0.00     0.33       0.00    -0.15
    48  10.8670      0.00     0.32       0.00    -0.21
    49  13.8266      0.00     0.12       0.00     0.09
    50  13.8269      0.00     0.15       0.00     0.03
    51  16.9781      0.00    -0.23       0.00    -0.25
    52  16.9782      0.00    -0.28       0.00     0.12
    53  16.9782      0.00    -0.05       0.00    -0.17
    54  16.9783      0.00     0.28       0.00     0.32
    55  17.0490      0.00    -0.18       0.00    -0.50
    56  17.9744      0.00    -0.12       0.00     0.19
    57  17.9744      0.00    -0.19       0.00     0.06
    58  17.9744      0.00    -0.02       0.00    -0.05
    59  17.9745      0.00    -0.21       0.00     0.29
    60  19.2362      0.00     0.22       0.00    -0.10
    61  19.3156      0.00    -0.12       0.00     0.44
    62  19.9244      0.00     0.47       0.00    -0.18
    63  19.9786      0.00    -0.13       0.00     0.01
    64  19.9836      0.00     0.12       0.00     0.38
    65  19.9839      0.00     0.45       0.00     0.11
    66  19.9841      0.00     0.13       0.00     0.40
    67  20.1456      0.00    -0.07       0.00     0.02
    68  20.9451      0.00     0.13       0.00    -0.03
    69  21.0925      0.00    -0.27       0.00    -0.23
    70  21.0926      0.00    -0.20       0.00    -0.13
    71  21.0926      0.00    -0.39       0.00    -0.20
    72  21.0926      0.00    -0.32       0.00     0.08
    73  22.0895      0.00    -0.45       0.00    -0.42
    74  22.1520      0.00    -0.35       0.00     0.33
    75  23.0395      0.00    -0.04       0.00    -0.25
    76  23.0635      0.00    -0.04       0.00     0.02
    77  23.0635      0.00    -0.09       0.00    -0.03
    78  23.8697      0.00    -0.05       0.00    -0.09
    79  23.9460      0.00     0.38       0.00     0.06
    80  24.1042      0.00     0.27       0.00     0.26
    81  24.8387      0.00     0.32       0.00     0.02
    82  24.9180      0.00     0.02       0.00    -0.01

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.

15836    quality flag:3

Type:           4:3E      4:3E      4:3E

axisobj        36.392    36.392    36.392
ecceobj         0.076     0.076     0.076
incobj          6.558     6.558     6.558
qmin           33.079    33.084    33.073
qmax           40.309    40.309    40.308
amean          36.483    36.483    36.483
amin           36.130    36.130    36.130
amax           36.863    36.863    36.863
emean           0.071     0.071     0.071
emin            0.050     0.050     0.050
emax            0.094     0.094     0.094
imean           4.836     4.837     4.836
imin            2.793     2.793     2.793
imax            7.135     7.136     7.135
excite_mean     0.112     0.112     0.112
fracstop        1.000     1.000     1.000
cjmean          3.013     3.013     3.013

libcent 0       180.2     180.2     180.2
libamp  0        75.7      75.7      75.7
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       180.5     180.5     180.6
kozaiamp        180.0     180.0     180.0