Orbit Fit and Astrometric record for 24JL23

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: 24JL23    
# Created Wed Jul 17 01:12:01 2024
# Orbit generated from Bernstein formalism
# Fitting     78 observations of     83
# Arc:   3.09y
# First observation: 2021/04/17
#  Last observation: 2024/05/19
Preliminary a, adot, b, bdot, g, gdot:
  -0.051313   0.249344   0.007685  -0.028877   0.101352   0.000000
# Chi-squared of fit:    42.98 DOF:    150 RMS:  0.13
# Min/Max residuals:    -0.42    0.34
# Exact a, adot, b, bdot, g, gdot:
  3.497604E-05  1.796348E-01 -3.756375E-06 -2.117554E-02  8.196410E-02 -6.554737E-02
# Covariance matrix:
  1.4431E-13 -1.3207E-13 -1.0641E-14  1.2734E-14 -2.9665E-14 -1.1681E-13
 -1.3207E-13  1.6858E-13  1.7032E-14 -1.9198E-14  5.3348E-14  1.7423E-13
 -1.0641E-14  1.7032E-14  7.8089E-14 -3.1673E-14  1.1016E-14  1.8021E-14
  1.2734E-14 -1.9198E-14 -3.1673E-14  1.6350E-14 -6.5794E-15 -2.1644E-14
 -2.9665E-14  5.3348E-14  1.1016E-14 -6.5794E-15  6.3474E-14  4.9844E-14
 -1.1681E-13  1.7423E-13  1.8021E-14 -2.1644E-14  4.9844E-14  1.9867E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   22.308032 -156.717347   -0.061248    0.381772   -0.930907  2459321.815395
# Heliocentric elements and errors
Epoch:              2459320.5000  =  2021/04/16
Mean Anomaly:          358.06287 +/-     0.000
Argument of Peri:      151.39881 +/-     0.000
Long of Asc Node:       93.39757 +/-     0.000
Inclination:            21.87888 +/-     0.000
Eccentricity:         0.85244962 +/-    0.0000
Semi-Major Axis:     78.22565166 +/-    0.0070
Time of Perihelion: 2460680.3073 +/-       0.0
Perihelion:          11.54222437 +/-    0.0014
Aphelion:           144.90907895 +/-    0.0130
Period (y)              691.8819 +/-      0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -11.26068125 +/-    0.0000
Ecliptic Y           -4.92121217 +/-    0.0000
Ecliptic Z            4.63111371 +/-    0.0000
Ecliptic XDOT         0.00399179 +/-    0.0000
Ecliptic YDOT        -0.00481045 +/-    0.0000
Ecliptic ZDOT        -0.00148568 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   13.13272575 +/-    0.0000
Geocenter to KBO     12.20046321 +/-    0.0000
# Hcoef: 11.43

The following table shows the complete astrometric record for 24JL23. 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 (24JL23) followed by the observatory code and reference code for the source of the astrometry.

2021 04  17.314594 13 59 09.615  +11 42 03.18  22.2G 24JL23    F51  C~83JF      
2021 04  17.327059 13 59 09.463  +11 42 04.00  22.3G 24JL23    F51  C~83JF      
2021 04  17.339545 13 59 09.308  +11 42 04.58  23.2G 24JL23    F51  C~83JF      
2021 04  17.352049 13 59 09.145  +11 42 05.19  22.3G 24JL23    F51  C~83JF      
2021 06  01.420311 13 50 55.469  +11 44 46.33  23.0G 24JL23    F51  C~83JF      
2021 06  01.430776 13 50 55.394  +11 44 46.04  22.1G 24JL23    F51  C~83JF      
2021 06  01.441220 13 50 55.315  +11 44 45.28  22.4G 24JL23    F51  C~83JF      
2021 06  01.451672 13 50 55.220  +11 44 44.95  22.9G 24JL23    F51  C~83JF      
2022 02  05.587716 14 43 38.011  +04 51 11.17  23.1G 24JL23    F52  C~83JG      
2022 02  05.599175 14 43 38.076  +04 51 11.90  22.4G 24JL23    F52  C~83JG      
2022 02  05.610644 14 43 38.128  +04 51 12.53  22.6G 24JL23    F52  C~83JG      
2022 02  05.622226 14 43 38.191  +04 51 13.25  22.7G 24JL23    F52  C~83JG      
2022 02  09.580638 14 43 57.051  +04 54 51.45  22.7G 24JL23    F52  C~83JG      
2022 02  09.602269 14 43 57.130  +04 54 52.86  22.4G 24JL23    F52  C~83JG      
2022 02  09.613137 14 43 57.175  +04 54 53.48  22.6G 24JL23    F52  C~83JG      
2022 03  03.585888 14 44 13.167  +05 20 34.47  22.1G 24JL23    F52  C~83JG      
2022 03  03.609353 14 44 13.101  +05 20 36.10  22.3G 24JL23    F52  C~83JG      
2022 03  29.532174 14 41 32.801  +05 55 46.97  22.2G 24JL23    F52  C~83JG      
2022 04  10.533936 14 39 27.565  +06 10 26.44  22.3G 24JL23    F52  C~83JG      
2022 04  10.544858 14 39 27.431  +06 10 27.02  22.4G 24JL23    F52  C~83JG      
2022 04  28.387614 14 35 47.867  +06 26 36.58  22.0G 24JL23    F52  C~83JG      
2022 04  28.399120 14 35 47.744  +06 26 37.53  21.4G 24JL23    F52  C~83JG      
2022 04  28.422211 14 35 47.439  +06 26 38.01  22.2G 24JL23    F52  C~83JG      
2022 05  26.436934 14 30 01.385  +06 31 30.70  21.9G 24JL23    F52  C~83JG      
2022 05  26.448523 14 30 01.260  +06 31 30.57  22.4G 24JL23    F52  C~83JG      
2022 05  26.460159 14 30 01.098  +06 31 29.87  21.6G 24JL23    F52  C~83JG      
2022 06  05.273139 14 28 21.215  +06 26 12.77  22.9G 24JL23    F52  C~83JG      
2022 06  05.284730 14 28 21.104  +06 26 12.42  22.2G 24JL23    F52  C~83JG      
2022 06  05.296295 14 28 21.001  +06 26 11.88  21.7G 24JL23    F52  C~83JG      
2022 06  05.307879 14 28 20.881  +06 26 11.20  22.0G 24JL23    F52  C~83JG      
2023 03  27.591313 15 23 39.670  -00 12 51.23  22.4G 24JL23    F51  C~83JG      
2023 03  27.601765 15 23 39.589  -00 12 50.54  22.1G 24JL23    F51  C~83JG      
2023 03  27.612166 15 23 39.533  -00 12 49.91  21.9G 24JL23    F51  C~83JG      
2023 03  27.622587 15 23 39.455  -00 12 49.35  21.9G 24JL23    F51  C~83JG      
2023 04  14.516118 15 21 01.511  +00 04 53.18  22.2G 24JL23    F52  C~83JG      
2023 04  14.536683 15 21 01.282  +00 04 54.35  21.4G 24JL23    F52  C~83JG      
2023 05  13.406937 15 14 58.188  +00 22 51.81  22.3G 24JL23    F52  C~83JG      
2023 05  13.419212 15 14 58.006  +00 22 51.80  22.4G 24JL23    F52  C~83JG      
2023 05  13.431547 15 14 57.854  +00 22 51.94  22.1G 24JL23    F52  C~83JG      
2023 05  13.443965 15 14 57.674  +00 22 52.20  22.3G 24JL23    F52  C~83JG      
2023 05  24.392582 15 12 32.273  +00 23 56.40  21.7G 24JL23    F52  C~83JG      
2023 06  07.318178 15 09 42.533  +00 19 37.83  22.2G 24JL23    F51  C~83JG      
2023 06  07.339426 15 09 42.290  +00 19 37.21  22.2G 24JL23    F51  C~83JG      
2023 06  07.350072 15 09 42.161  +00 19 36.78  22.2G 24JL23    F51  C~83JG      
2023 06  15.411948 15 08 17.525  +00 14 06.02  21.8G 24JL23    F51  C~83JG      
2023 06  15.424032 15 08 17.409  +00 14 05.43  21.8G 24JL23    F51  C~83JG      
2023 06  15.437747 15 08 17.262  +00 14 04.96  21.5G 24JL23    F51  C~83JG      
2023 06  15.449828 15 08 17.149  +00 14 04.12  21.7G 24JL23    F51  C~83JG      
2023 07  09.287141 15 05 34.434  -00 14 57.82  21.8G 24JL23    F51  C~83JG      
2023 07  09.299039 15 05 34.376  -00 14 59.20  22.8G 24JL23    F51  C~83JG      
2023 07  09.310947 15 05 34.353  -00 15 00.59  22.1G 24JL23    F51  C~83JG      
2023 07  09.322794 15 05 34.293  -00 15 01.63  22.1G 24JL23    F51  C~83JG      
2023 07  16.295960 15 05 16.164  -00 26 49.22  22.2G 24JL23    F51  C~83JG      
2023 07  16.308181 15 05 16.137  -00 26 50.68  22.5G 24JL23    F51  C~83JG      
2023 07  16.320474 15 05 16.119  -00 26 51.76  22.3G 24JL23    F51  C~83JG      
2023 07  16.334004 15 05 16.109  -00 26 53.30  22.3G 24JL23    F51  C~83JG      
2024 05  01.575293 16 03 05.736  -06 18 35.25  22.2G 24JL23    F52  C~83JG      
2024 05  01.585146 16 03 05.606  -06 18 35.05  22.2G 24JL23    F52  C~83JG      
2024 05  01.594976 16 03 05.476  -06 18 34.94  22.1G 24JL23    F52  C~83JG      
2024 05  01.604796 16 03 05.352  -06 18 34.65  21.9G 24JL23    F52  C~83JG      
2024 05  04.463374 16 02 29.479  -06 17 32.24  21.8G 24JL23    F52  C~83JG      
2024 05  04.476624 16 02 29.308  -06 17 31.92  21.8G 24JL23    F52  C~83JG      
2024 05  04.489806 16 02 29.148  -06 17 31.97  21.6G 24JL23    F52  C~83JG      
2024 05  04.502967 16 02 28.957  -06 17 31.48  21.8G 24JL23    F52  C~83JG      
2024 05  07.552604 16 01 49.457  -06 16 33.68  21.7w 24JL23    F52  C~83JG      
2024 05  07.563729 16 01 49.288  -06 16 33.40  21.9w 24JL23    F52  C~83JG      
2024 05  07.574876 16 01 49.139  -06 16 33.33  22.0w 24JL23    F52  C~83JG      
2024 05  07.586006 16 01 48.983  -06 16 33.07  22.1w 24JL23    F52  C~83JG      
2024 05  09.587076 16 01 22.491  -06 16 00.26  21.6G 24JL23    T14  C~83JG      
2024 05  09.588883 16 01 22.467  -06 16 00.25  21.7G 24JL23    T14  C~83JG      
2024 05  09.590635 16 01 22.440  -06 16 00.22  21.6G 24JL23    T14  C~83JG      
2024 05  10.451808 16 01 10.920  -06 15 47.70        24JL23    V06  C~83JG      
2024 05  10.461156 16 01 10.780  -06 15 47.50  22.2G 24JL23    V06  C~83JG      
2024 05  12.292853 16 00 46.13   -06 15 23.7   21.7G 24JL23    H21  C~83JG      
2024 05  12.300080 16 00 46.07   -06 15 23.4   22.0G 24JL23    H21  C~83JG      
2024 05  12.304703 16 00 46.00   -06 15 23.1   22.1G 24JL23    H21  C~83JG      
2024 05  15.319371 16 00 04.748  -06 14 51.68  21.9G 24JL23    V06  C~83JG      
2024 05  15.329489 16 00 04.604  -06 14 51.54  21.6G 24JL23    V06  C~83JG      
2024 05  15.339685 16 00 04.460  -06 14 51.50  21.8G 24JL23    V06  C~83JG      
2024 05  15.350016 16 00 04.324  -06 14 51.32  21.6G 24JL23    V06  C~83JG      
2024 05  19.36263  15 59 08.77   -06 14 26.9   21.8G 24JL23    695  C~83JG      
2024 05  19.37728  15 59 08.56   -06 14 27.0   21.9G 24JL23    695  C~83JG      
2024 05  19.39197  15 59 08.36   -06 14 26.9   21.9G 24JL23    695  C~83JG      

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    -0.07       0.00    -0.07
     2   0.0000     -2.38    -0.06      -0.07     0.09
     3   0.0001     -4.71    -0.00      -0.38     0.01
     4   0.0001     -7.15    -0.06      -0.71    -0.09
     5   0.1235  -6806.35     0.10   -2532.94    -0.08
     6   0.1235  -6807.27     0.12   -2533.62     0.19
     7   0.1235  -6808.07     0.26   -2534.75    -0.01
     8   0.1236  -6809.25     0.02   -2535.57     0.11
     9   0.8057  46847.09     0.05   -7493.55    -0.23
    10   0.8057  46847.72     0.09   -7492.46    -0.07
    11   0.8057  46848.20    -0.02   -7491.55    -0.08
    12   0.8058  46848.80    -0.02   -7490.49     0.05
    13   0.8166  47027.84     0.13   -7170.23    -0.04
    14   0.8167  47028.38    -0.01   -7168.42     0.08
    15   0.8167  47028.77     0.04   -7167.57     0.08
    16   0.8769  46605.79    -0.06   -5618.32     0.07
    17   0.8769  46604.15     0.08   -5617.18    -0.14
    18   0.9479  43418.67    -0.13   -4606.97    -0.09
    19   0.9808  41267.21     0.09   -4539.65     0.19
    20   0.9808  41265.06     0.07   -4539.92     0.01
    21   1.0296  37751.47    -0.41   -4951.49    -0.06
    22   1.0297  37749.34 (  -0.21)  -4951.34 (   0.57)
    23   1.0297  37744.83    -0.04   -4952.71     0.15
    24   1.1064  32750.80    -0.21   -6734.68     0.08
    25   1.1065  32749.10    -0.17   -6735.54     0.22
    26   1.1065  32747.10    -0.42   -6737.15    -0.39
    27   1.1334  31473.64     0.07   -7621.06    -0.02
    28   1.1334  31472.22     0.01   -7622.04     0.13
    29   1.1334  31471.00     0.13   -7623.15     0.14
    30   1.1335  31469.59     0.07   -7624.49    -0.07
    31   1.9419  91833.22     0.00  -10040.33    -0.02
    32   1.9419  91831.55    -0.16  -10040.16    -0.04
    33   1.9420  91830.32     0.11  -10039.90     0.05
    34   1.9420  91828.76     0.06  -10039.84    -0.08
    35   1.9910  88731.83     0.20  -10005.85     0.00
    36   1.9910  88727.55     0.16  -10006.17     0.05
    37   2.0701  82388.62     0.04  -11280.59     0.15
    38   2.0701  82385.74    -0.07  -11281.77    -0.14
    39   2.0701  82383.26     0.24  -11282.61    -0.08
    40   2.0702  82380.29     0.07  -11283.50    -0.08
    41   2.1001  80053.56    -0.06  -12149.26     0.03
    42   2.1383  77515.73    -0.05  -13480.89    -0.15
    43   2.1383  77512.23    -0.06  -13483.04    -0.07
    44   2.1384  77510.42    -0.12  -13484.28    -0.19
    45   2.1604  76346.91    -0.04  -14343.46    -0.02
    46   2.1605  76345.38     0.03  -14344.77     0.02
    47   2.1605  76343.32    -0.23  -14346.16     0.16
    48   2.1605  76341.95    -0.00  -14347.70    -0.04
    49   2.2258  74632.24    -0.09  -17082.29     0.23
    50   2.2258  74631.99    -0.15  -17084.01    -0.08
    51   2.2259  74632.28     0.34  -17085.53    -0.19
    52   2.2259  74631.84     0.08  -17086.93    -0.18
    53   2.2450  74682.04     0.00  -17898.20     0.08
    54   2.2450  74682.31     0.00  -17899.81    -0.09
    55   2.2451  74682.53    -0.04  -17900.99     0.17
    56   2.2451  74683.10     0.22  -17902.58     0.18
    57   3.0397 147147.69     0.00  -17588.63     0.06
    58   3.0398 147144.90    -0.09  -17589.29    -0.02
    59   3.0398 147142.17    -0.14  -17590.06    -0.20
    60   3.0398 147139.45    -0.18  -17590.58    -0.13
    61   3.0476 146366.39    -0.17  -17764.94    -0.00
    62   3.0477 146362.70    -0.15  -17765.75     0.07
    63   3.0477 146359.47     0.30  -17766.90    -0.21
    64   3.0477 146355.26    -0.22  -17767.65    -0.09
    65   3.0561 145514.05 (   0.46) -17971.65 (   0.06)
    66   3.0561 145510.43     0.01  -17972.49     0.02
    67   3.0562 145507.36     0.10  -17973.42    -0.12
    68   3.0562 145504.02    -0.08  -17974.19    -0.10
    69   3.0617 144945.37     0.06  -18117.52     0.08
    70   3.0617 144944.88     0.08  -18117.67     0.07
    71   3.0617 144944.31     0.02  -18117.82     0.05
    72   3.0640 144702.91    -0.00  -18182.06    -0.04
    73   3.0641 144699.95    -0.29  -18182.79    -0.05
    74   3.0691 144186.17 (   0.86) -18323.49 (  -0.20)
    75   3.0691 144184.77 (   1.54) -18323.55 (   0.31)
    76   3.0691 144183.17 (   1.27) -18323.69 (   0.55)
    77   3.0774 143331.24     0.14  -18568.22     0.06
    78   3.0774 143328.25     0.08  -18569.03     0.11
    79   3.0774 143325.32     0.09  -18569.97     0.05
    80   3.0774 143322.47     0.22  -18570.68     0.21
    81   3.0884 142191.42    -0.03  -18919.25     0.20
    82   3.0885 142187.27     0.02  -18920.79     0.01
    83   3.0885 142183.20     0.15  -18922.03     0.12

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.

24JL23    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        76.991    77.001    76.980
ecceobj         0.850     0.850     0.850
incobj         21.847    21.847    21.847
qmin           11.165    10.805    11.227
qmax          205.688   310.564   210.878
amean          78.702   117.606    82.742
amin           65.967    68.060    65.931
amax          108.649   160.940   111.255
emean           0.851     0.897     0.856
emin            0.823     0.828     0.819
emax            0.893     0.931     0.895
imean          20.668    20.702    20.802
imin           19.887    19.627    19.886
imax           22.229    22.187    22.886
excite_mean     0.921     0.964     0.927
fracstop        0.088     0.154     0.096
cjmean          1.970     1.869     1.962

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       200.8     216.9     201.3
kozaiamp         46.2      51.9      48.8