Orbit Fit and Astrometric record for 612733

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: 612733    
# Created Wed Jul 17 01:07:46 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     39 observations of     39
# Arc:  18.19y
# First observation: 2003/12/24
#  Last observation: 2022/03/02
# Chi-squared of fit:    49.25 DOF:     72 RMS:  0.20
# Min/Max residuals:    -0.44    0.64
# Exact a, adot, b, bdot, g, gdot:
  1.854015E-05  2.763144E-02  7.113536E-07  2.274213E-03  2.587066E-02  1.473349E-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
   -1.285087  111.999228    0.335753   -0.020595   -0.921142  2452997.968413
# Heliocentric elements and errors
Epoch:              2452998.5000  =  2003/12/25
Mean Anomaly:           12.51982 +/-     0.000
Argument of Peri:      327.34408 +/-     0.000
Long of Asc Node:      126.48839 +/-     0.000
Inclination:             4.84711 +/-     0.000
Eccentricity:         0.16510333 +/-    0.0000
Semi-Major Axis:     47.09180925 +/-    0.0000
Time of Perihelion: 2448893.5088 +/-       0.0
Perihelion:          39.31679454 +/-    0.0000
Aphelion:            54.86682397 +/-    0.0000
Period (y)              323.1664 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -14.51374682 +/-    0.0000
Ecliptic Y           36.81306703 +/-    0.0000
Ecliptic Z           -0.86687570 +/-    0.0000
Ecliptic XDOT        -0.00277594 +/-    0.0000
Ecliptic YDOT        -0.00095217 +/-    0.0000
Ecliptic ZDOT         0.00023727 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.58029794 +/-    0.0000
Geocenter to KBO     38.65383600 +/-    0.0000
# Hcoef:  6.90

The following table shows the complete astrometric record for 612733. 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 (612733) followed by the observatory code and reference code for the source of the astrometry.

2003 12  24.46767  07 34 11.14   +20 22 26.1   23.0g 612733    568  Cq9908      
2003 12  24.49091  07 34 11.03   +20 22 26.4   23.0g 612733    568  Cq9908      
2003 12  24.51415  07 34 10.91   +20 22 26.7   22.8g 612733    568  Cq9908      
2003 12  25.50897  07 34 05.84   +20 22 38.8   23.0g 612733    568  Cq9908      
2004 04  15.15900  07 28 06.38   +20 40 05.3         612733    675  Cq9908      
2004 04  15.21134  07 28 06.46   +20 40 05.2         612733    675  Cq9908      
2004 04  16.19869  07 28 08.04   +20 40 05.0         612733    675  Cq9908      
2004 09  16.51192  07 42 18.47   +20 11 38.1         612733    675  Cq9908      
2004 09  18.46447  07 42 26.14   +20 11 18.1         612733    675  Cq9908      
2004 09  18.47321  07 42 26.20   +20 11 17.9         612733    675  Cq9908      
2005 01  08.36606  07 39 34.48   +20 18 03.4         612733    568  Cq9908      
2005 01  08.40392  07 39 34.27   +20 18 04.0         612733    568  Cq9908      
2005 01  08.44177  07 39 34.07   +20 18 04.7         612733    568  Cq9908      
2005 01  15.38895  07 38 56.35   +20 19 43.4   23.1r 612733    568  Cq9908      
2005 10  03.45349  07 49 43.76   +20 00 25.5   23.6R 612733    675  Cq9908      
2005 10  03.52662  07 49 43.97   +20 00 25.0         612733    675  Cq9908      
2008 09  27.39060  08 08 41.85   +19 29 50.7   24.7R 612733    250  S~06Ah      
2008 09  27.39754  08 08 41.88   +19 29 50.7         612733    250  S~06Ah      
2008 09  27.40379  08 08 41.90   +19 29 50.6         612733    250  S~06Ah      
2008 09  27.41074  08 08 41.92   +19 29 50.5         612733    250  S~06Ah      
2013 03  13.17100  08 27 21.04   +19 03 27.4   22.5R 612733    695  C~0ud7      
2013 03  14.15788  08 27 17.96   +19 03 39.7         612733    695  C~0ud7      
2013 03  14.24696  08 27 17.69   +19 03 40.4         612733    695  C~0ud7      
2014 01  28.41175  08 37 03.82   +18 35 39.4   22.3R 612733    G37  C~16Mq      
2014 01  28.48111  08 37 03.46   +18 35 40.7         612733    G37  C~16Mq      
2018 12  09.478230 09 11 45.75   +16 52 50.7   22.0r 612733    568  C~2rbK      
2018 12  09.542090 09 11 45.61   +16 52 51.5   22.0r 612733    568  C~2rbK      
2018 12  09.583950 09 11 45.51   +16 52 51.9   22.1r 612733    568  C~2rbK      
2020 01  04.356170 09 16 28.26   +16 40 26.9   22.9G 612733    705  C~3slk      
2020 01  04.398230 09 16 28.08   +16 40 27.7   23.3G 612733    705  C~3slk      
2020 01  04.469940 09 16 27.79   +16 40 29.4   22.9G 612733    705  C~3slk      
2021 02  15.247490 09 19 09.987  +16 37 05.21  22.9G 612733    G37  C~4Yr4      
2021 02  15.300110 09 19 09.743  +16 37 06.44        612733    G37  C~4Yr4      
2021 03  20.142160 09 16 48.427  +16 48 10.94  23.0G 612733    G37  C~4hj3      
2021 03  20.183330 09 16 48.285  +16 48 11.84        612733    G37  C~4hj3      
2021 03  20.222410 09 16 48.160  +16 48 12.52        612733    G37  C~4hj3      
2022 03  02.145700 09 24 01.590  +16 22 31.83  23.0G 612733    G37  C~5Rkz      
2022 03  02.185550 09 24 01.451  +16 22 32.96        612733    G37  C~5Rkz      
2022 03  02.226300 09 24 01.260  +16 22 33.67        612733    G37  C~5Rkz      

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    -0.34       0.00     0.19
     2   0.0001      0.00    -0.18       0.00     0.21
     3   0.0001      0.00    -0.18       0.00     0.23
     4   0.0029      0.00    -0.29       0.00     0.27
     5   0.3085      0.00    -0.01       0.00    -0.27
     6   0.3087      0.00     0.03       0.00    -0.35
     7   0.3114      0.00     0.03       0.00    -0.32
     8   0.7311      0.00     0.38       0.00     0.64
     9   0.7365      0.00    -0.44       0.00     0.24
    10   0.7365      0.00    -0.04       0.00     0.12
    11   1.0428      0.00     0.17       0.00    -0.35
    12   1.0429      0.00     0.14       0.00    -0.29
    13   1.0431      0.00     0.27       0.00    -0.12
    14   1.0621      0.00     0.14       0.00     0.02
    15   1.7768      0.00    -0.00       0.00     0.07
    16   1.7770      0.00     0.37       0.00     0.07
    17   4.7609      0.00     0.04       0.00    -0.15
    18   4.7609      0.00     0.12       0.00    -0.07
    19   4.7609      0.00     0.09       0.00    -0.11
    20   4.7610      0.00     0.02       0.00    -0.13
    21   9.2175      0.00    -0.16       0.00    -0.08
    22   9.2202      0.00    -0.28       0.00     0.14
    23   9.2205      0.00    -0.12       0.00    -0.23
    24  10.0970      0.00     0.04       0.00     0.11
    25  10.0972      0.00     0.10       0.00     0.00
    26  14.9596      0.00    -0.12       0.00    -0.05
    27  14.9598      0.00    -0.07       0.00    -0.02
    28  14.9599      0.00    -0.14       0.00    -0.12
    29  16.0298      0.00     0.04       0.00    -0.17
    30  16.0299      0.00    -0.08       0.00    -0.22
    31  16.0301      0.00    -0.04       0.00     0.04
    32  17.1466      0.00    -0.08       0.00     0.07
    33  17.1467      0.00     0.19       0.00     0.06
    34  17.2366      0.00     0.04       0.00    -0.14
    35  17.2367      0.00     0.06       0.00     0.12
    36  17.2368      0.00     0.22       0.00     0.18
    37  18.1867      0.00    -0.36       0.00    -0.02
    38  18.1868      0.00     0.28       0.00     0.24
    39  18.1869      0.00     0.21       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.

612733    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        46.972    46.972    46.972
ecceobj         0.164     0.164     0.164
incobj          4.857     4.857     4.857
qmin           38.296    38.284    38.290
qmax           55.763    55.698    55.791
amean          46.799    46.799    46.799
amin           46.399    46.402    46.401
amax           47.288    47.261    47.277
emean           0.165     0.165     0.165
emin            0.151     0.151     0.151
emax            0.180     0.179     0.180
imean           3.650     3.650     3.650
imin            3.102     3.102     3.102
imax            4.228     4.225     4.227
excite_mean     0.177     0.177     0.177
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.097

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       173.1     173.1     173.1
kozaiamp        180.0     179.9     179.9