Orbit Fit and Astrometric record for 523983

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: 523983    
# Created Fri Dec  3 02:07:53 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     36 observations of     36
# Arc:  21.12y
# First observation: 1999/09/06
#  Last observation: 2020/10/20
# Chi-squared of fit:   102.31 DOF:     66 RMS:  0.30
# Min/Max residuals:    -0.75    0.63
# Exact a, adot, b, bdot, g, gdot:
  1.693464E-05  2.940064E-02  5.026487E-06  5.254137E-03  2.711723E-02 -1.831021E-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
    9.362985    9.349903    0.441548    0.145973   -0.886720  2451427.939683
# Heliocentric elements and errors
Epoch:              2451428.5000  =  1999/09/07
Mean Anomaly:          341.21027 +/-     0.000
Argument of Peri:       69.79632 +/-     0.000
Long of Asc Node:      327.27633 +/-     0.000
Inclination:            13.67301 +/-     0.000
Eccentricity:         0.18682567 +/-    0.0000
Semi-Major Axis:     45.62184199 +/-    0.0000
Time of Perihelion: 2457303.0647 +/-       0.0
Perihelion:          37.09851089 +/-    0.0000
Aphelion:            54.14517309 +/-    0.0000
Period (y)              308.1537 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.86824564 +/-    0.0000
Ecliptic Y            5.62412753 +/-    0.0000
Ecliptic Z            5.99965199 +/-    0.0000
Ecliptic XDOT        -0.00075146 +/-    0.0000
Ecliptic YDOT         0.00289363 +/-    0.0000
Ecliptic ZDOT         0.00049340 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.77430034 +/-    0.0000
Geocenter to KBO     36.87699638 +/-    0.0000
# Hcoef:  7.36

The following table shows the complete astrometric record for 523983. 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 (523983) followed by the observatory code and reference code for the source of the astrometry.

1999 09  06.43894  00 19 20.48   +12 17 59.3   22.8R 523983    568  Ca8546      
1999 09  06.48649  00 19 20.26   +12 17 58.6   22.8R 523983    568  Ca8546      
1999 09  06.52690  00 19 20.06   +12 17 57.8   22.8R 523983    568  Ca8546      
1999 09  09.47537  00 19 06.24   +12 16 58.6   22.8R 523983    568  Ca8546      
1999 09  09.48697  00 19 06.21   +12 16 58.6   22.8R 523983    568  Ca8546      
1999 09  10.47595  00 19 01.51   +12 16 37.7   22.9R 523983    568  Ca8546      
1999 09  10.48639  00 19 01.46   +12 16 37.3   22.6R 523983    568  Ca8546      
1999 10  08.40856  00 16 42.11   +12 04 09.5   23.2R 523983    568  Ca8546      
1999 10  08.43404  00 16 42.00   +12 04 08.8   23.0R 523983    568  Ca8546      
1999 11  10.31627  00 14 19.64   +11 46 56.2   23.1R 523983    568  Ca8546      
1999 11  10.36475  00 14 19.45   +11 46 54.2   23.1R 523983    568  Ca8546      
2000 08  27.55819  00 25 52.53   +13 17 31.9   22.9R 523983    568  Cb9109      
2000 08  27.59454  00 25 52.37   +13 17 31.1   23.0R 523983    568  Cb9109      
2000 08  29.60300  00 25 43.98   +13 17 03.9   22.7R 523983    568  Cb9109      
2000 08  29.63530  00 25 43.83   +13 17 03.5   22.9R 523983    568  Cb9109      
2000 12  27.22020  00 19 02.621  +12 27 43.75  22.0R 523983    568  Cl2529      
2000 12  28.22887  00 19 03.690  +12 27 36.46  22.1R 523983    568  Cl2529      
2002 11  05.32464  00 32 15.67   +14 40 40.9   22.5R 523983    568  Cl8251      
2002 11  05.36123  00 32 15.51   +14 40 40.1         523983    568  Cl8251      
2002 11  06.39525  00 32 11.33   +14 40 06.5         523983    568  Cl8251      
2007 07  12.35358  01 09 50.29   +19 33 25.0         523983    304  Cv1964      
2007 07  12.43263  01 09 50.35   +19 33 27.3         523983    304  Cv1964      
2008 09  20.37879  01 13 30.88   +20 32 18.4   23.6R 523983    250  S~06AL      
2008 09  20.38574  01 13 30.84   +20 32 18.2         523983    250  S~06AL      
2008 09  20.39199  01 13 30.81   +20 32 18.1         523983    250  S~06AL      
2008 09  20.39893  01 13 30.78   +20 32 18.0         523983    250  S~06AL      
2015 10  11.235689 01 59 37.45   +26 13 50.4         523983    W84  C~3n9Q      
2015 10  11.237390 01 59 37.43   +26 13 50.3         523983    W84  C~3n9Q      
2018 09  13.324640 02 23 33.14   +28 27 16.4   22.8G 523983    705  C~2rXd      
2018 09  14.333860 02 23 29.55   +28 27 19.7   23.0G 523983    705  C~2rXd      
2018 09  14.447070 02 23 29.13   +28 27 20.1   22.8G 523983    705  C~2rXd      
2019 11  27.133010 02 24 26.683  +28 46 31.46  22.7G 523983    G37  C~3TtO      
2019 11  27.207700 02 24 26.289  +28 46 29.47        523983    G37  C~3TtO      
2020 10  20.307710 02 35 32.061  +29 42 04.64  22.9G 523983    G37  C~4Kn8      
2020 10  20.363980 02 35 31.741  +29 42 03.50        523983    G37  C~4Kn8      
2020 10  20.443100 02 35 31.271  +29 42 02.25        523983    G37  C~4Kn8      

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     0.21       0.00    -0.35
     2   0.0001      0.00     0.27       0.00    -0.14
     3   0.0002      0.00     0.14       0.00    -0.16
     4   0.0083      0.00    -0.09       0.00    -0.16
     5   0.0083      0.00     0.30       0.00     0.08
     6   0.0111      0.00     0.32       0.00     0.02
     7   0.0111      0.00     0.33       0.00    -0.15
     8   0.0875      0.00     0.32       0.00    -0.31
     9   0.0876      0.00     0.61       0.00    -0.22
    10   0.1776      0.00    -0.26       0.00     0.63
    11   0.1778      0.00    -0.59       0.00     0.07
    12   0.9750      0.00    -0.10       0.00    -0.13
    13   0.9751      0.00    -0.20       0.00    -0.45
    14   0.9806      0.00     0.14       0.00    -0.25
    15   0.9807      0.00    -0.02       0.00    -0.19
    16   1.3081      0.00    -0.69       0.00     0.51
    17   1.3109      0.00    -0.75       0.00     0.60
    18   3.1646      0.00     0.16       0.00    -0.46
    19   3.1647      0.00     0.06       0.00    -0.07
    20   3.1676      0.00     0.43       0.00    -0.14
    21   7.8464      0.00    -0.28       0.00     0.23
    22   7.8467      0.00    -0.41       0.00     0.32
    23   9.0402      0.00    -0.07       0.00     0.54
    24   9.0402      0.00    -0.16       0.00     0.46
    25   9.0403      0.00    -0.15       0.00     0.46
    26   9.0403      0.00    -0.09       0.00     0.48
    27  16.0953      0.00     0.07       0.00     0.13
    28  16.0953      0.00    -0.09       0.00     0.06
    29  19.0195      0.00    -0.00       0.00    -0.22
    30  19.0223      0.00     0.02       0.00    -0.13
    31  19.0226      0.00     0.00       0.00    -0.05
    32  20.2237      0.00     0.12       0.00    -0.29
    33  20.2239      0.00     0.11       0.00     0.10
    34  21.1222      0.00     0.01       0.00    -0.03
    35  21.1223      0.00     0.14       0.00    -0.23
    36  21.1225      0.00     0.02       0.00    -0.13

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.

523983    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.599    45.599    45.599
ecceobj         0.187     0.187     0.187
incobj         13.678    13.678    13.678
qmin           36.371    36.401    36.400
qmax           54.381    54.465    54.365
amean          45.201    45.199    45.200
amin           44.811    44.807    44.813
amax           45.639    45.643    45.644
emean           0.176     0.176     0.176
emin            0.160     0.160     0.161
emax            0.193     0.194     0.192
imean          14.853    14.854    14.855
imin           14.254    14.245    14.248
imax           15.556    15.553    15.560
excite_mean     0.311     0.311     0.311
fracstop        1.000     1.000     1.000
cjmean          2.997     2.997     2.997

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       180.9     180.9     180.8
kozaiamp        180.0     180.0     180.0