Orbit Fit and Astrometric record for 24LC5

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: 24LC5     
# Created Tue Sep 30 01:12:17 2025
# Orbit generated from Bernstein formalism
# Fitting     61 observations of     61
# Arc:   2.33y
# First observation: 2023/05/16
#  Last observation: 2025/09/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.425241   0.984344  -0.340568   0.627356   0.306824   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:  9999.99 DOF:    116 RMS: 99.99
# Min/Max residuals: -9999.99 9999.99
# Exact a, adot, b, bdot, g, gdot:
 -5.913507E-01  7.392385E-01 -4.748065E-01  3.873799E-01  3.027526E-01 -2.304648E-02
# Covariance matrix:
  1.8712E-13 -1.5122E-13  1.8021E-17  7.6824E-15 -1.4772E-14  1.5996E-14
 -1.5122E-13  1.4277E-13 -8.5892E-15  8.0626E-15  2.4609E-14  4.2813E-15
  1.8021E-17 -8.5892E-15  1.6138E-13 -1.2731E-13 -4.6962E-15 -1.1604E-14
  7.6824E-15  8.0626E-15 -1.2731E-13  1.1038E-13  5.2015E-15  2.6194E-14
 -1.4772E-14  2.4609E-14 -4.6962E-15  5.2015E-15  1.1939E-14  3.9896E-15
  1.5996E-14  4.2813E-15 -1.1604E-14  2.6194E-14  3.9896E-15  3.7594E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.330078  -63.468358    0.898195    0.019136   -0.476602  2460080.807125
# Heliocentric elements and errors
Epoch:              2460080.5000  =  2023/05/16
Mean Anomaly:          305.31180 +/-     0.000
Argument of Peri:       96.48211 +/-     0.000
Long of Asc Node:      294.98926 +/-     0.000
Inclination:            27.61612 +/-     0.000
Eccentricity:         0.67429293 +/-    0.0000
Semi-Major Axis:      4.80838413 +/-    0.0000
Time of Perihelion: 2460665.5436 +/-       0.0
Perihelion:           1.56612470 +/-    0.0000
Aphelion:             8.05064357 +/-    0.0000
Period (y)               10.5440 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -0.82656904 +/-    0.0000
Ecliptic Y           -4.70916248 +/-    0.0000
Ecliptic Z           -1.43267053 +/-    0.0000
Ecliptic XDOT         0.00582196 +/-    0.0000
Ecliptic YDOT         0.00330836 +/-    0.0000
Ecliptic ZDOT         0.00349177 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    4.99118949 +/-    0.0000
Geocenter to KBO      4.14544585 +/-    0.0000
# Hcoef: 17.52

The following table shows the complete astrometric record for 24LC5. 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 (24LC5) followed by the observatory code and reference code for the source of the astrometry.

2023 05  16.306324 19 52 20.82   -18 33 34.5         24LC5     W84  C~953q      
2024 05  18.43985  21 18 51.89   +02 49 20.9         24LC5     G96  C~85Nh      
2024 05  18.45564  21 18 52.04   +02 49 26.3   21.9G 24LC5     G96  C~85Nh      
2024 06  07.415032 21 19 30.176  +04 42 06.88  21.6G 24LC5     V00  C~85Nh      
2024 06  07.420673 21 19 30.166  +04 42 08.78  21.9G 24LC5     V00  C~85Nh      
2024 06  07.426283 21 19 30.155  +04 42 10.55  21.8G 24LC5     V00  C~85Nh      
2024 06  07.431886 21 19 30.130  +04 42 12.49  21.4G 24LC5     V00  C~85Nh      
2024 06  07.522318 21 19 29.795  +04 42 41.25  22.1w 24LC5     F52  C~85Nh      
2024 06  07.534795 21 19 29.729  +04 42 45.27  22.0w 24LC5     F52  C~85Nh      
2024 06  07.547326 21 19 29.679  +04 42 49.10  21.7w 24LC5     F52  C~85Nh      
2024 06  07.559850 21 19 29.624  +04 42 52.90  21.7w 24LC5     F52  C~85Nh      
2024 06  11.576202 21 19 08.904  +05 03 33.98  21.3G 24LC5     T14  C~85Nh      
2024 06  11.577411 21 19 08.897  +05 03 34.37  21.4G 24LC5     T14  C~85Nh      
2024 06  11.578623 21 19 08.889  +05 03 34.74  21.3G 24LC5     T14  C~85Nh      
2024 06  12.342528 21 19 03.94   +05 07 24.8   21.7G 24LC5     H21  C~85Nh      
2024 06  12.349755 21 19 03.88   +05 07 27.2   21.9G 24LC5     H21  C~85Nh      
2024 06  15.335567 21 18 41.25   +05 22 10.8   21.5G 24LC5     H21  C~85Nh      
2024 06  15.344101 21 18 41.19   +05 22 13.2   21.1G 24LC5     H21  C~85Nh      
2024 06  15.349789 21 18 41.15   +05 22 14.6   21.4G 24LC5     H21  C~85Nh      
2024 07  01.547188 21 15 14.483  +06 32 57.20  21.4w 24LC5     F51  C~875G      
2024 07  01.560076 21 15 14.246  +06 33 00.19  21.4w 24LC5     F51  C~875G      
2024 07  01.573036 21 15 14.023  +06 33 03.16  21.3w 24LC5     F51  C~875G      
2024 07  03.342000 21 14 43.547  +06 39 43.15  21.4G 24LC5     G37  C~892c      
2024 07  03.382300 21 14 42.811  +06 39 52.17        24LC5     G37  C~892c      
2024 07  03.419640 21 14 42.129  +06 40 00.36        24LC5     G37  C~892c      
2024 08  03.462470 21 02 52.246  +07 57 31.20  21.2w 24LC5     F51  C~8Aki      
2024 08  03.471782 21 02 52.003  +07 57 31.96  21.2w 24LC5     F51  C~8Aki      
2024 08  03.481244 21 02 51.751  +07 57 32.64  21.1w 24LC5     F51  C~8Aki      
2024 09  01.269991 20 51 10.840  +08 03 48.86  21.2w 24LC5     F52  C~8Dse      
2024 09  01.277988 20 51 10.664  +08 03 48.50  21.1w 24LC5     F52  C~8Dse      
2024 09  01.285921 20 51 10.495  +08 03 48.25  21.2w 24LC5     F52  C~8Dse      
2024 09  01.293902 20 51 10.328  +08 03 48.00  21.1w 24LC5     F52  C~8Dse      
2024 09  09.173598 20 48 40.324  +07 57 13.03  20.5G 24LC5     G96  C~8Dse      
2024 09  09.178791 20 48 40.223  +07 57 11.52  21.3G 24LC5     G96  C~8Dse      
2024 09  09.183980 20 48 40.090  +07 57 11.16  21.3G 24LC5     G96  C~8Dse      
2024 09  09.189174 20 48 39.982  +07 57 10.91  21.3G 24LC5     G96  C~8Dse      
2024 09  10.307567 20 48 21.061  +07 56 03.56  21.1w 24LC5     F52  C~8G1H      
2024 09  10.316238 20 48 20.910  +07 56 03.15  21.2w 24LC5     F52  C~8G1H      
2024 09  10.324922 20 48 20.751  +07 56 02.50  21.1w 24LC5     F52  C~8G1H      
2024 09  10.333581 20 48 20.608  +07 56 02.01  21.2w 24LC5     F52  C~8G1H      
2024 09  20.351395 20 45 59.362  +07 44 23.19  21.0i 24LC5     F51  C~8Hez      
2024 09  20.360661 20 45 59.261  +07 44 22.64  21.1i 24LC5     F51  C~8Hez      
2024 09  20.371802 20 45 59.121  +07 44 21.57  21.0i 24LC5     F51  C~8Hez      
2024 10  03.252913 20 44 21.350  +07 27 19.52  21.4w 24LC5     F51  C~8Hez      
2024 10  03.263302 20 44 21.316  +07 27 18.83  21.3w 24LC5     F51  C~8Hez      
2024 10  03.274644 20 44 21.264  +07 27 17.75  21.3w 24LC5     F51  C~8Hez      
2024 10  03.286535 20 44 21.213  +07 27 16.95  21.4w 24LC5     F51  C~8Hez      
2024 10  21.275862 20 44 56.608  +07 05 50.57  21.2w 24LC5     F51  C~8Mo3      
2024 10  21.284475 20 44 56.650  +07 05 49.89  21.1w 24LC5     F51  C~8Mo3      
2024 10  21.293093 20 44 56.716  +07 05 49.37  21.3w 24LC5     F51  C~8Mo3      
2025 06  20.393639 22 48 18.017  +25 15 15.77  21.3G 24LC5     G37  C~953q      
2025 06  20.395184 22 48 18.024  +25 15 16.00  21.4G 24LC5     G37  C~953q      
2025 08  17.358064 22 36 39.082  +29 16 14.69  21.7w 24LC5     F52  C~953q      
2025 08  17.378742 22 36 38.587  +29 16 16.42  21.5w 24LC5     F52  C~953q      
2025 08  17.389075 22 36 38.317  +29 16 17.23  21.8w 24LC5     F52  C~953q      
2025 08  27.328681 22 32 33.078  +29 23 47.90  21.4w 24LC5     F51  C~953q      
2025 08  27.341782 22 32 32.740  +29 23 48.20  21.6w 24LC5     F51  C~953q      
2025 08  27.354891 22 32 32.391  +29 23 48.29  21.4w 24LC5     F51  C~953q      
2025 09  14.316817 22 25 08.759  +29 10 17.87  21.7w 24LC5     F52  C~98UV      
2025 09  14.329075 22 25 08.467  +29 10 16.75  21.8w 24LC5     F52  C~98UV      
2025 09  14.341390 22 25 08.153  +29 10 15.34  21.5w 24LC5     F52  C~98UV      

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      0.00121984.65       0.00 97940.97
     2   1.0079 101586.31 12499.90   63736.19 64573.96
     3   1.0079 101591.16 12490.52   63742.15 64571.93
     4   1.0626 104962.35  -140.11   71806.14 60389.10
     5   1.0626 104962.93  -143.07   71808.50 60387.29
     6   1.0626 104963.43  -146.08   71810.71 60385.34
     7   1.0626 104963.74  -149.28   71813.17 60383.64
     8   1.0629 104968.96  -204.28   71849.48 60352.78
     9   1.0629 104969.33  -211.68   71854.61 60348.66
    10   1.0629 104969.93  -218.87   71859.47 60344.20
    11   1.0630 104970.42  -226.15   71864.30 60339.72
    12   1.0740 105078.77 -2579.02   73453.32 58843.97
    13   1.0740 105078.80 -2579.65   73453.82 58843.50
    14   1.0740 105078.79 -2580.30   73454.30 58843.01
    15   1.0761 105078.13 -3011.38   73752.83 58532.81
    16   1.0761 105077.96 -3015.38   73755.97 58530.10
    17   1.0843 105007.38 -4646.23   74914.97 57223.31
    18   1.0843 105007.21 -4650.35   74918.12 57219.18
    19   1.0843 105007.02 -4653.17   74919.97 57216.18
    20   1.1287 102823.86-11427.11   80797.02 47356.94
    21   1.1287 102820.61-11430.47   80801.43 47347.13
    22   1.1287 102817.61-11433.58   80805.78 47337.18
    23   1.1336 102405.47-11885.37   81392.33 45966.51
    24   1.1337 102395.26-11893.86   81405.70 45934.43
    25   1.1338 102385.73-11901.66   81417.87 45904.45
    26   1.2188  91061.22 -6794.63   89180.01 13579.77
    27   1.2188  91057.08 -6788.87   89181.61 13568.54
    28   1.2188  91052.74 -6783.14   89183.12 13557.03
    29   1.2976  78612.19 13602.74   91497.64-19345.23
    30   1.2977  78608.96 13608.38   91497.65-19353.12
    31   1.2977  78605.88 13614.12   91497.78-19360.83
    32   1.2977  78602.85 13619.96   91497.91-19368.58
    33   1.3193  75825.92 18394.73   91402.16-26456.66
    34   1.3193  75823.63 18397.07   91400.54-26462.48
    35   1.3193  75821.17 18399.24   91400.45-26466.77
    36   1.3193  75819.19 18401.89   91400.42-26471.00
    37   1.3224  75464.44 18964.42   91366.83-27388.45
    38   1.3224  75461.65 18969.07   91366.72-27395.36
    39   1.3224  75458.65 18973.51   91366.33-27402.56
    40   1.3225  75455.97 18978.27   91366.10-27409.57
    41   1.3499  72753.18 22205.80   90875.14-34737.44
    42   1.3499  72751.24 22208.12   90874.73-34743.17
    43   1.3499  72748.44 22210.42   90873.78-34750.50
    44   1.3852  70712.11 21742.54   89873.71-41720.37
    45   1.3852  70711.30 21740.43   89872.95-41725.07
    46   1.3853  70710.04 21737.75   89871.76-41730.56
    47   1.3853  70708.89 21735.11   89870.91-41735.89
    48   1.4346  70895.56 10706.81   88191.72-49008.78
    49   1.4346  70896.06 10698.74   88190.77-49012.02
    50   1.4346  70897.03 10691.12   88189.95-49015.13
    51   2.0974 313688.58345606.80  207086.95214933.52
    52   2.0974 313689.26345604.88  207087.67214933.75
    53   2.2561 303871.75248918.45  244053.15235162.96
    54   2.2562 303852.08248869.37  244053.29235156.99
    55   2.2562 303841.14248843.73  244052.94235153.58
    56   2.2834 293665.49224715.46  242889.01230928.89
    57   2.2835 293651.26224682.75  242886.48230922.24
    58   2.2835 293636.24224649.22  242883.19230914.82
    59   2.3327 273966.70180039.65  236188.35218097.18
    60   2.3327 273953.46180009.33  236182.44218086.82
    61   2.3327 273938.94179977.64  236175.47218075.37

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.

24LC5    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        17.488    17.488    17.488
ecceobj         0.642     0.642     0.642
incobj         33.381    33.381    33.381
qmin            6.258     6.245     6.172
qmax           31.651    28.815    30.482
amean          18.019    14.854    15.782
amin           16.959    13.621    14.864
amax           19.075    17.553    18.383
emean           0.633     0.525     0.561
emin            0.619     0.431     0.515
emax            0.659     0.642     0.658
imean          35.974    37.211    37.647
imin           34.959    34.822    34.754
imax           36.852    40.063    40.129
excite_mean     0.864     0.803     0.830
fracstop        0.005     0.005     0.008
cjmean          2.644     2.991     2.864

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        31.8      52.8      49.9
kozaiamp         16.4      15.3      15.3