Orbit Fit and Astrometric record for 523899

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: 523899    
# Created Tue Feb 18 02:07:39 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   64 observations of   64
# Arc:  22.16y
# First observation: 1997/02/06
#  Last observation: 2019/04/05
# Chi-squared of fit:   484.02 DOF:  122 RMS:  0.49
# Min/Max residuals:    -1.43    1.10
# Exact a, adot, b, bdot, g, gdot:
  1.492080E-05  2.551356E-02  3.339653E-07  3.459121E-03  2.543955E-02 -3.309675E-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
    2.262878  137.068626   -0.011976    0.039125   -0.994093  2450485.970540
# Heliocentric elements and errors
Epoch:              2450486.5000  =  1997/02/07
Mean Anomaly:          342.65197 +/-     0.000
Argument of Peri:       34.81510 +/-     0.000
Long of Asc Node:      121.26274 +/-     0.000
Inclination:             8.04646 +/-     0.000
Eccentricity:         0.04151181 +/-    0.0000
Semi-Major Axis:     41.94964872 +/-    0.0000
Time of Perihelion: 2455268.8206 +/-       0.0
Perihelion:          40.20824269 +/-    0.0000
Aphelion:            43.69105475 +/-    0.0000
Period (y)              271.7069 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -29.48890068 +/-    0.0000
Ecliptic Y           27.41581236 +/-    0.0000
Ecliptic Z            1.55210750 +/-    0.0000
Ecliptic XDOT        -0.00182737 +/-    0.0000
Ecliptic YDOT        -0.00203889 +/-    0.0000
Ecliptic ZDOT         0.00037040 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.29431372 +/-    0.0000
Geocenter to KBO     39.30892566 +/-    0.0000
# Hcoef:  7.36

The following table shows the complete astrometric record for 523899. 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 (523899) followed by the observatory code and reference code for the source of the astrometry.

1997 02  06.46982  09 20 57.12   +17 52 31.8   22.8R 523899    568  C30145      
1997 02  06.50517  09 20 56.92   +17 52 32.5         523899    568  C30145      
1997 02  06.54095  09 20 56.78   +17 52 33.8         523899    568  C30145      
1997 02  07.43281  09 20 52.20   +17 52 56.3         523899    568  C30145      
1997 02  07.47111  09 20 52.00   +17 52 57.2         523899    568  C30145      
1997 02  09.38100  09 20 42.22   +17 53 45.5         523899    568  C30145      
1997 02  09.41839  09 20 42.06   +17 53 46.6         523899    568  C30145      
1997 02  09.45591  09 20 41.82   +17 53 47.6         523899    568  C30145      
1997 02  09.54990  09 20 41.38   +17 53 50.0         523899    568  C30145      
1997 04  07.89249  09 16 55.40   +18 11 04.6         523899    950  C30242      
1997 04  07.93019  09 16 55.33   +18 11 04.8         523899    950  C30242      
1998 02  16.48182  09 26 12.45   +17 40 53.2         523899    568  Ca0526      
1998 02  16.54732  09 26 12.13   +17 40 54.8         523899    568  Ca0526      
1998 02  16.58885  09 26 11.90   +17 40 56.2         523899    568  Ca0526      
1998 02  17.50192  09 26 07.35   +17 41 18.4         523899    568  Ca0526      
1998 02  17.59559  09 26 06.86   +17 41 20.0         523899    568  Ca0526      
1998 02  18.49820  09 26 02.37   +17 41 43.1         523899    568  Ca0526      
1998 02  18.54722  09 26 02.12   +17 41 43.9         523899    568  Ca0526      
1998 12  18.20884  09 36 33.56   +16 59 57.6         523899    950  Ca3586      
1998 12  18.23825  09 36 33.47   +16 59 58.0         523899    950  Ca3586      
1998 12  18.26209  09 36 33.41   +16 59 59.1         523899    950  Ca3800      
1998 12  19.20130  09 36 31.10   +17 00 15.0         523899    950  Ca3586      
1998 12  19.23795  09 36 31.01   +17 00 15.9         523899    950  Ca3800      
1998 12  19.26487  09 36 30.93   +17 00 15.8         523899    950  Ca3586      
1999 02  16.25676  09 32 19.10   +17 24 15.4         523899    568  Ca4120      
1999 02  16.37498  09 32 18.43   +17 24 17.8   22.9R 523899    568  Ca3800      
1999 02  16.41302  09 32 18.22   +17 24 18.8         523899    568  Ca3800      
1999 02  16.45233  09 32 18.02   +17 24 19.8         523899    568  Ca3800      
1999 02  17.31904  09 32 13.70   +17 24 41.9         523899    568  Ca3800      
1999 02  17.35801  09 32 13.50   +17 24 42.8         523899    568  Ca3800      
1999 02  17.39170  09 32 13.32   +17 24 43.7         523899    568  Ca3800      
1999 03  23.25284  09 29 43.64   +17 36 44.6         523899    568  Ca4796      
1999 03  23.33771  09 29 43.32   +17 36 45.8         523899    568  Ca4796      
1999 05  09.98889  09 28 34.40   +17 40 49.0   23.4R 523899    807  Ca6670      
1999 05  10.99861  09 28 35.27   +17 40 42.5   23.6R 523899    807  Ca6670      
2000 03  30.26309  09 35 20.04   +17 21 54.8         523899    568  Cb1806      
2000 03  30.26959  09 35 20.02   +17 21 54.8         523899    568  Cb1806      
2000 03  30.27631  09 35 19.99   +17 21 54.8         523899    568  Cb1806      
2000 03  30.28290  09 35 19.97   +17 21 55.1         523899    568  Cb1806      
2000 03  30.29589  09 35 19.93   +17 21 55.2         523899    568  Cb1806      
2000 03  30.30371  09 35 19.91   +17 21 55.4         523899    568  Cb1806      
2000 03  30.31661  09 35 19.87   +17 21 55.6         523899    568  Cb1807      
2000 03  30.32306  09 35 19.85   +17 21 55.6         523899    568  Cb1807      
2000 03  30.33607  09 35 19.81   +17 21 55.9         523899    568  Cb1807      
2001 02  17.06311  09 44 19.40   +16 49 49.1   22.8R 523899    950  Cc6334      
2001 02  17.11487  09 44 19.13   +16 49 50.7         523899    950  Cc6334      
2001 05  22.28375  09 40 40.32   +17 05 39.8         523899    568  Cd2185      
2001 05  22.31663  09 40 40.38   +17 05 39.4         523899    568  Cd2185      
2006 01  06.449485 10 17 21.09   +14 50 53.2   22.7V 523899    645  C~1cF1      
2006 01  06.450314 10 17 21.09   +14 50 53.2   22.9V 523899    645  C~1cF1      
2006 01  06.452802 10 17 21.08   +14 50 53.2   24.2V 523899    645  C~1cF1      
2006 01  31.393088 10 15 44.21   +15 02 09.6         523899    645  C~1cF1      
2006 01  31.393917 10 15 44.21   +15 02 09.6         523899    645  C~1cF1      
2006 01  31.396405 10 15 44.20   +15 02 09.7         523899    645  C~1cF1      
2008 03  05.26810  10 24 55.97   +14 34 43.3         523899    695  Cy7583      
2008 03  05.35218  10 24 55.56   +14 34 45.6         523899    695  Cy7583      
2013 03  13.34035  10 53 37.80   +12 40 29.7   22.8R 523899    695  C~0ucn      
2013 03  14.31430  10 53 33.21   +12 40 57.2         523899    695  C~0ucn      
2013 03  14.42440  10 53 32.71   +12 41 00.2         523899    695  C~0ucn      
2019 03  07.195140 11 28 47.04   +10 00 03.4   23.4G 523899    705  C~31GV      
2019 03  07.249990 11 28 46.77   +10 00 05.2   23.6G 523899    705  C~31GV      
2019 03  07.288140 11 28 46.61   +10 00 06.3   23.4G 523899    705  C~31GV      
2019 04  05.179510 11 26 34.273  +10 13 55.67  23.2G 523899    G37  C~34bV      
2019 04  05.253110 11 26 33.948  +10 13 57.24        523899    G37  C~34bV      

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     0.31       0.00     0.30
  2   0.0001      0.00     0.07       0.00     0.10
  3   0.0002      0.00     0.75       0.00     0.50
  4   0.0026      0.00     0.23       0.00     0.30
  5   0.0027      0.00     0.21       0.00     0.23
  6   0.0080      0.00    -0.41       0.00     0.20
  7   0.0081      0.00     0.10       0.00     0.36
  8   0.0082      0.00    -0.57       0.00     0.41
  9   0.0084      0.00     0.13       0.00     0.46
 10   0.1654      0.00    -0.70       0.00     0.96
 11   0.1655      0.00    -0.60       0.00     0.88
 12   1.0267      0.00    -0.05       0.00     0.29
 13   1.0269      0.00     0.15       0.00     0.27
 14   1.0270      0.00    -0.14       0.00     0.65
 15   1.0295      0.00     0.15       0.00     0.11
 16   1.0298      0.00    -0.09       0.00    -0.59
 17   1.0322      0.00     0.07       0.00     0.18
 18   1.0324      0.00     0.04       0.00    -0.22
 19   1.8610      0.00     0.26       0.00     0.18
 20   1.8611      0.00     0.02       0.00     0.06
 21   1.8612      0.00     0.01       0.00     0.75
 22   1.8637      0.00     0.04       0.00     0.13
 23   1.8638      0.00     0.12       0.00     0.38
 24   1.8639      0.00    -0.04       0.00    -0.20
 25   2.0254      0.00     0.83       0.00     0.08
 26   2.0257      0.00    -0.18       0.00    -0.58
 27   2.0259      0.00    -0.41       0.00    -0.56
 28   2.0260      0.00    -0.39       0.00    -0.57
 29   2.0283      0.00    -0.08       0.00    -0.63
 30   2.0284      0.00    -0.10       0.00    -0.74
 31   2.0285      0.00    -0.22       0.00    -0.70
 32   2.1212      0.00    -0.43       0.00    -1.29
 33   2.1215      0.00    -0.66       0.00    -1.43
 34   2.2519      0.00     1.07       0.00     0.90
 35   2.2547      0.00     1.10       0.00     0.79
 36   3.1425      0.00    -0.08       0.00    -0.85
 37   3.1425      0.00    -0.07       0.00    -0.93
 38   3.1425      0.00    -0.21       0.00    -1.02
 39   3.1425      0.00    -0.20       0.00    -0.81
 40   3.1426      0.00    -0.19       0.00    -0.88
 41   3.1426      0.00    -0.13       0.00    -0.78
 42   3.1426      0.00    -0.13       0.00    -0.75
 43   3.1427      0.00    -0.13       0.00    -0.84
 44   3.1427      0.00    -0.12       0.00    -0.71
 45   4.0290      0.00     0.22       0.00     0.65
 46   4.0291      0.00     0.12       0.00     0.88
 47   4.2870      0.00     0.29       0.00     1.04
 48   4.2871      0.00     0.36       0.00     1.03
 49   8.9144      0.00     0.10       0.00     0.13
 50   8.9144      0.00     0.14       0.00     0.11
 51   8.9144      0.00     0.11       0.00     0.05
 52   8.9827      0.00     0.01       0.00     0.37
 53   8.9827      0.00     0.07       0.00     0.35
 54   8.9827      0.00     0.09       0.00     0.38
 55  11.0741      0.00    -0.13       0.00     0.46
 56  11.0743      0.00    -0.13       0.00     0.44
 57  16.0955      0.00    -0.05       0.00     0.10
 58  16.0981      0.00    -0.36       0.00     0.09
 59  16.0984      0.00    -0.02       0.00     0.01
 60  22.0773      0.00    -0.02       0.00    -0.16
 61  22.0774      0.00    -0.16       0.00    -0.13
 62  22.0775      0.00     0.17       0.00    -0.25
 63  22.1566      0.00     0.15       0.00     0.12
 64  22.1568      0.00     0.03       0.00    -0.07

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.

523899    quality flag:2

Type:      CLASSICAL  SCATNEAR CLASSICAL

axisobj        42.151    42.151    42.151
ecceobj         0.045     0.045     0.045
incobj          8.027     8.027     8.027
qmin           38.715    38.697    38.693
qmax           46.391    46.328    46.485
amean          42.328    42.321    42.343
amin           41.916    41.912    41.920
amax           42.754    42.761    42.747
emean           0.061     0.058     0.046
emin            0.025     0.023     0.004
emax            0.086     0.084     0.088
imean           6.481     6.380     6.806
imin            5.393     5.182     5.399
imax            7.732     8.008     8.100
excite_mean     0.129     0.126     0.129
fracstop        1.000     1.000     1.000
cjmean          3.063     3.064     3.063

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       174.9     181.5     176.7
kozaiamp        180.0     180.0     180.0