Orbit Fit and Astrometric record for 23QB47

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: 23QB47    
# Created Fri Nov 22 02:11:17 2024
# Orbit generated from Bernstein formalism
# Fitting     93 observations of     93
# Arc:   3.38y
# First observation: 2021/06/06
#  Last observation: 2024/10/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.204593   0.482111  -0.123458   0.189202   0.209172   0.000000
# WARNING MRQMIN stopped after  18 iterations -- oscilliatory solution
# Chi-squared of fit:  9999.99 DOF:    180 RMS: 99.99
# Min/Max residuals: -8703.89 9999.99
# Exact a, adot, b, bdot, g, gdot:
 -6.182611E-01  2.765514E-01  4.219438E-02 -3.031669E-02  1.105097E-01 -2.589089E-01
# Covariance matrix:
  8.1217E-14 -2.9032E-14 -1.1104E-15  2.1422E-15  6.9620E-15 -8.2961E-15
 -2.9032E-14  1.3679E-14  1.1709E-15 -1.1124E-15  2.9333E-15  4.6215E-15
 -1.1104E-15  1.1709E-15  3.0309E-14 -1.2333E-14  1.2593E-15  6.8939E-16
  2.1422E-15 -1.1124E-15 -1.2333E-14  5.2864E-15 -4.2059E-16 -6.0462E-16
  6.9620E-15  2.9333E-15  1.2593E-15 -4.2059E-16  1.0107E-14  2.1782E-15
 -8.2961E-15  4.6215E-15  6.8939E-16 -6.0462E-16  2.1782E-15  2.5399E-15
#      lat0       lon0       xBary       yBary       zBary        JD0
   -4.577404  -35.125881    0.948154   -0.028425   -0.352388  2459372.100784
# Heliocentric elements and errors
Epoch:              2459370.5000  =  2021/06/05
Mean Anomaly:          355.57635 +/-     0.203
Argument of Peri:      326.21263 +/-     0.000
Long of Asc Node:      103.59291 +/-     0.000
Inclination:            14.78467 +/-     0.000
Eccentricity:         1.10768057 +/-    0.0000
Semi-Major Axis:     -7.96202952 +/-    0.0000
Time of Perihelion: 2460636.0495 +/-      58.0
Perihelion:           0.85735591 +/-    0.0000
Aphelion:           -16.78141496 +/-    0.0001
Period (y)              281.9752 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            3.93460976 +/-    0.0000
Ecliptic Y          -10.76715707 +/-    0.0000
Ecliptic Z           -0.34148849 +/-    0.0000
Ecliptic XDOT        -0.00133080 +/-    0.0000
Ecliptic YDOT         0.00932427 +/-    0.0000
Ecliptic ZDOT        -0.00023698 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   11.46862850 +/-    0.0000
Geocenter to KBO     10.64563850 +/-    0.0000
# Hcoef:   NaN

The following table shows the complete astrometric record for 23QB47. 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 (23QB47) followed by the observatory code and reference code for the source of the astrometry.

2021 06  06.599983 21 55 03.174  -17 32 21.79  23.1G 23QB47    F51  C~7BsY      
2021 08  03.431446 21 44 51.078  -18 01 03.09  22.6G 23QB47    F51  C~7BsY      
2021 08  03.440504 21 44 50.921  -18 01 03.28  23.1G 23QB47    F51  C~7BsY      
2021 08  03.449562 21 44 50.742  -18 01 03.86  22.7G 23QB47    F51  C~7BsY      
2021 08  31.324051 21 36 25.491  -18 21 19.81  22.6G 23QB47    F51  C~7BsY      
2021 08  31.350156 21 36 25.050  -18 21 20.88  23.0G 23QB47    F51  C~7BsY      
2021 09  07.342069 21 34 25.688  -18 24 40.06  22.9G 23QB47    F51  C~7BsY      
2022 08  18.436409 22 23 27.477  -09 04 01.56  22.9G 23QB47    F51  C~7BsY      
2022 08  18.448870 22 23 27.223  -09 04 01.65  22.8G 23QB47    F51  C~7BsY      
2022 08  18.473854 22 23 26.732  -09 04 02.90  22.4G 23QB47    F51  C~7BsY      
2022 08  18.568009 22 23 24.919  -09 04 07.32  23.0G 23QB47    F52  C~7BsY      
2022 08  28.405077 22 20 14.153  -09 12 18.57  22.4G 23QB47    F52  C~7BsY      
2022 08  28.418561 22 20 13.904  -09 12 19.31  22.5G 23QB47    F52  C~7BsY      
2022 08  28.432044 22 20 13.627  -09 12 19.87  22.1G 23QB47    F52  C~7BsY      
2022 08  28.518464 22 20 11.887  -09 12 24.25  22.1G 23QB47    F51  C~7BsY      
2022 08  28.519157 22 20 11.876  -09 12 24.31  22.0G 23QB47    F51  C~7BsY      
2022 09  01.420941 22 18 55.670  -09 15 43.07  22.9G 23QB47    F51  C~7BsY      
2022 09  01.432687 22 18 55.439  -09 15 43.61  22.3G 23QB47    F51  C~7BsY      
2022 09  01.444563 22 18 55.198  -09 15 44.33  22.7G 23QB47    F51  C~7BsY      
2022 09  01.456380 22 18 54.952  -09 15 45.00  22.5G 23QB47    F51  C~7BsY      
2022 09  22.387944 22 12 30.905  -09 31 33.97  22.3G 23QB47    F51  C~7BsY      
2022 09  22.400101 22 12 30.714  -09 31 34.64  22.4G 23QB47    F51  C~7BsY      
2022 09  22.412082 22 12 30.465  -09 31 34.89  22.4G 23QB47    F51  C~7BsY      
2022 09  22.424297 22 12 30.298  -09 31 35.28  22.5G 23QB47    F51  C~7BsY      
2022 10  24.323247 22 06 24.609  -09 37 59.29  22.4G 23QB47    F52  C~7BsY      
2022 11  16.246995 22 06 15.066  -09 21 45.31  23.6G 23QB47    F51  C~7BsY      
2023 06  25.577133 23 25 41.376  +02 39 25.78  22.7G 23QB47    F51  C~7BsY      
2023 07  15.539213 23 25 22.908  +03 17 00.40  22.6G 23QB47    F52  C~7BsY      
2023 07  15.564822 23 25 22.779  +03 17 02.20  22.2G 23QB47    F52  C~7BsY      
2023 07  15.577626 23 25 22.683  +03 17 03.61  21.7G 23QB47    F52  C~7BsY      
2023 08  18.459536 23 18 33.242  +03 39 33.59  21.8w 23QB47    F51  C~7BsY      
2023 08  18.470779 23 18 33.032  +03 39 33.53  21.8w 23QB47    F51  C~7BsY      
2023 08  18.482029 23 18 32.832  +03 39 33.32  21.9w 23QB47    F51  C~7BsY      
2023 08  21.419639 23 17 39.287  +03 39 06.86  22.4G 23QB47    F52  C~7BsY      
2023 08  21.421539 23 17 39.232  +03 39 06.71  22.2G 23QB47    F52  C~7BsY      
2023 08  21.432404 23 17 39.028  +03 39 06.62  22.6G 23QB47    F52  C~7BsY      
2023 08  21.441352 23 17 38.831  +03 39 06.73  21.8G 23QB47    F52  C~7BsY      
2023 08  21.443251 23 17 38.820  +03 39 06.52  22.1G 23QB47    F52  C~7BsY      
2023 08  21.452266 23 17 38.609  +03 39 06.14  22.2G 23QB47    F52  C~7BsY      
2023 08  21.454166 23 17 38.605  +03 39 06.21  22.1G 23QB47    F52  C~7BsY      
2023 08  24.417914 23 16 42.478  +03 38 18.48  21.3G 23QB47    F51  C~7BsY      
2023 09  06.30270  23 12 21.14   +03 31 17.1   21.4G 23QB47    G96  C~7BsY      
2023 09  06.30834  23 12 21.03   +03 31 17.2   21.3G 23QB47    G96  C~7BsY      
2023 09  13.401892 23 09 50.924  +03 25 22.65  21.8G 23QB47    F51  C~7BsY      
2023 09  13.414776 23 09 50.649  +03 25 21.92  21.4G 23QB47    F51  C~7BsY      
2023 09  13.427727 23 09 50.371  +03 25 21.13  21.4G 23QB47    F51  C~7BsY      
2023 09  19.317339 23 07 46.250  +03 19 39.04  21.5G 23QB47    V00  C~7BsY      
2023 09  19.322852 23 07 46.132  +03 19 38.86  21.7G 23QB47    V00  C~7BsY      
2023 09  19.328351 23 07 46.016  +03 19 38.50  21.3G 23QB47    V00  C~7BsY      
2023 09  19.333849 23 07 45.880  +03 19 38.21  21.5G 23QB47    V00  C~7BsY      
2023 09  19.393822 23 07 44.605  +03 19 34.54  21.3G 23QB47    V06  C~7BsY      
2023 09  19.398674 23 07 44.508  +03 19 34.21  21.4G 23QB47    V06  C~7BsY      
2023 09  19.403533 23 07 44.418  +03 19 33.96  21.3G 23QB47    V06  C~7BsY      
2023 09  20.19958  23 07 27.90   +03 18 45.4   22.0R 23QB47    291  C~7BsY      
2023 09  20.21609  23 07 27.56   +03 18 44.6   21.5R 23QB47    291  C~7BsY      
2023 09  20.23259  23 07 27.26   +03 18 43.5   21.9R 23QB47    291  C~7BsY      
2023 10  14.223593 23 00 03.766  +02 53 18.71  22.2G 23QB47    V00  C~7BsY      
2023 10  14.229097 23 00 03.683  +02 53 18.64  22.1G 23QB47    V00  C~7BsY      
2023 10  14.234600 23 00 03.604  +02 53 18.06  22.0G 23QB47    V00  C~7BsY      
2023 10  14.240099 23 00 03.524  +02 53 17.74  21.8G 23QB47    V00  C~7BsY      
2023 10  19.225816 22 58 52.500  +02 48 37.32  21.8w 23QB47    F51  C~7Mvs      
2023 10  19.252084 22 58 52.151  +02 48 36.06  21.9w 23QB47    F51  C~7Mvs      
2023 10  19.264977 22 58 51.969  +02 48 35.50  21.9w 23QB47    F51  C~7Mvs      
2024 08  15.455429 00 34 58.793  +19 52 48.14  20.9i 23QB47    F51  C~8CQp      
2024 08  15.465203 00 34 58.673  +19 52 49.56  21.0i 23QB47    F51  C~8CQp      
2024 08  15.474993 00 34 58.591  +19 52 50.79  21.2i 23QB47    F51  C~8CQp      
2024 08  17.458825 00 34 37.445  +19 57 10.35  21.0i 23QB47    F52  C~8CQp      
2024 08  17.478547 00 34 37.187  +19 57 12.88  21.2i 23QB47    F52  C~8CQp      
2024 08  17.488407 00 34 37.065  +19 57 14.25  21.1i 23QB47    F52  C~8CQp      
2024 09  05.413218 00 29 45.348  +20 25 17.59  21.7w 23QB47    F52  C~8DsS      
2024 09  05.424440 00 29 45.132  +20 25 17.65  21.6w 23QB47    F52  C~8DsS      
2024 09  05.435632 00 29 44.906  +20 25 18.59  21.4w 23QB47    F52  C~8DsS      
2024 09  12.366601 00 27 24.174  +20 29 20.85  21.2w 23QB47    F52  C~8G1F      
2024 09  12.379802 00 27 23.903  +20 29 21.06  21.2w 23QB47    F52  C~8G1F      
2024 09  12.406235 00 27 23.317  +20 29 21.79  21.2w 23QB47    F52  C~8G1F      
2024 09  24.360385 00 22 54.076  +20 28 39.99  21.2w 23QB47    F51  C~8HeV      
2024 09  24.373942 00 22 53.749  +20 28 39.65  21.1w 23QB47    F51  C~8HeV      
2024 09  24.387615 00 22 53.419  +20 28 39.22  21.2w 23QB47    F51  C~8HeV      
2024 09  26.313115 00 22 08.108  +20 27 40.50  21.6G 23QB47    G96  C~8HeV      
2024 09  26.318307 00 22 07.975  +20 27 40.36  21.5G 23QB47    G96  C~8HeV      
2024 09  26.323495 00 22 07.849  +20 27 40.50  21.0G 23QB47    G96  C~8HeV      
2024 09  26.328679 00 22 07.741  +20 27 39.74  21.8G 23QB47    G96  C~8HeV      
2024 09  30.495457 00 20 29.019  +20 24 48.14  21.1w 23QB47    F51  C~8HeV      
2024 09  30.508391 00 20 28.710  +20 24 47.34  21.3w 23QB47    F51  C~8HeV      
2024 09  30.521271 00 20 28.410  +20 24 46.62  21.2w 23QB47    F51  C~8HeV      
2024 09  30.534100 00 20 28.081  +20 24 46.08  21.4w 23QB47    F51  C~8HeV      
2024 10  03.251844 00 19 23.797  +20 22 21.72  20.6G 23QB47    G96  C~8HeV      
2024 10  03.257033 00 19 23.632  +20 22 21.04  21.2G 23QB47    G96  C~8HeV      
2024 10  03.262207 00 19 23.466  +20 22 20.68  21.2G 23QB47    G96  C~8HeV      
2024 10  03.267392 00 19 23.340  +20 22 19.92  21.4G 23QB47    G96  C~8HeV      
2024 10  23.297498 00 11 58.870  +19 54 35.50  21.1w 23QB47    F52  C~8Mnk      
2024 10  23.308914 00 11 58.647  +19 54 34.61  21.1w 23QB47    F52  C~8Mnk      
2024 10  23.320407 00 11 58.389  +19 54 33.60  21.3w 23QB47    F52  C~8Mnk      

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      0.00127529.55       0.00 -8703.89
     2   0.1583  -8820.04142288.98    1306.30 -6084.45
     3   0.1584  -8822.23142290.86    1306.85 -6083.75
     4   0.1584  -8824.83142292.30    1307.15 -6083.31
     5   0.2347 -16059.38145747.75    2486.26 -4525.01
     6   0.2348 -16065.72145749.55    2487.25 -4523.83
     7   0.2539 -17752.15145996.41    2837.72 -4117.96
     8   1.1987  34503.34165111.02   19892.11 20160.77
     9   1.1988  34499.70165114.25   19893.42 20162.40
    10   1.1988  34492.25165120.53   19894.91 20164.55
    11   1.1991  34464.84165144.49   19900.59 20172.64
    12   1.2260  31575.41167258.56   20469.66 20993.87
    13   1.2261  31571.61167261.24   20470.30 20994.75
    14   1.2261  31567.48167263.59   20471.27 20995.96
    15   1.2263  31541.21167278.54   20476.51 21002.69
    16   1.2263  31541.03167278.69   20476.52 21002.70
    17   1.2370  30388.76167895.66   20698.92 21301.66
    18   1.2371  30385.29167897.40   20699.66 21302.55
    19   1.2371  30381.62167898.98   20700.27 21303.33
    20   1.2371  30377.89167900.48   20700.96 21304.18
    21   1.2944  24612.67168853.06   21850.92 22634.32
    22   1.2945  24609.74168852.55   21851.29 22634.64
    23   1.2945  24606.15168851.35   21852.38 22635.67
    24   1.2945  24603.65168851.27   21852.89 22636.13
    25   1.3819  19329.78162763.68   23411.49 23851.07
    26   1.4446  19549.05154314.47   24391.14 24347.91
    27   2.0506 112458.96114966.77   40866.09 56234.72
    28   2.1052 113411.50122332.68   43482.82 64263.44
    29   2.1053 113410.22122345.09   43485.61 64273.39
    30   2.1053 113409.30122351.02   43487.76 64279.11
    31   2.1981 106920.98143820.40   47427.51 77902.29
    32   2.1981 106917.26143828.98   47428.68 77906.23
    33   2.1982 106913.65143837.66   47429.62 77909.94
    34   2.2062 105962.70146059.25   47714.63 78935.45
    35   2.2062 105961.66146060.33   47714.79 78936.06
    36   2.2062 105958.05146068.84   47715.89 78939.73
    37   2.2063 105954.67146075.44   47717.16 78943.12
    38   2.2063 105954.36146077.25   47717.00 78943.40
    39   2.2063 105950.47146083.40   47717.81 78946.35
    40   2.2063 105950.44146085.49   47717.91 78946.89
    41   2.2144 104945.96148330.51   47993.77 79934.16
    42   2.2497 100205.75157690.46   49050.11 83576.46
    43   2.2497 100203.92157694.75   49050.86 83578.07
    44   2.2691  97454.99162176.84   49529.13 85058.87
    45   2.2692  97449.93162184.57   49529.91 85061.00
    46   2.2692  97444.79162192.25   49530.65 85063.08
    47   2.2853  95164.83165243.23   49870.70 85975.17
    48   2.2853  95162.74165245.92   49871.18 85975.99
    49   2.2854  95160.60165248.53   49871.46 85976.60
    50   2.2854  95158.16165250.84   49871.92 85977.40
    51   2.2855  95134.74165278.83   49875.24 85984.36
    52   2.2856  95132.94165281.15   49875.43 85984.85
    53   2.2856  95131.29165283.63   49875.68 85985.39
    54   2.2877  94827.60165644.17   49917.51 86088.41
    55   2.2878  94821.45165652.18   49918.59 86090.53
    56   2.2878  94815.83165660.67   49919.11 86092.06
    57   2.3535  86659.33168970.83   50796.06 86759.72
    58   2.3535  86657.93168969.99   50796.46 86759.59
    59   2.3536  86656.34168968.96   50796.28 86758.90
    60   2.3536  86654.86168968.04   50796.39 86758.48
    61   2.3672  85349.77167616.70   50896.98 86400.48
    62   2.3673  85343.43167608.56   50897.60 86398.18
    63   2.3673  85340.17167604.40   50898.03 86397.14
    64   3.1919 265578.36164435.71  106814.46136211.37
    65   3.1920 265576.03164418.23  106817.54136215.72
    66   3.1920 265574.77164401.79  106820.14136219.60
    67   3.1974 265175.86160949.78  107381.28137033.19
    68   3.1975 265170.18160913.41  107386.91137041.51
    69   3.1975 265167.71160895.60  107389.90137045.85
    70   3.2493 257365.08123279.64  111467.15144174.72
    71   3.2493 257357.91123254.20  111467.89144177.69
    72   3.2494 257351.52123229.58  111470.33144182.37
    73   3.2684 252983.17107557.74  112336.97146478.78
    74   3.2684 252974.52107527.17  112338.15146482.92
    75   3.2685 252956.17107464.89  112341.23146491.95
    76   3.3012 244228.38 78679.85  113052.29150101.84
    77   3.3012 244217.64 78645.73  113052.63150105.87
    78   3.3013 244206.70 78611.19  113052.81150109.78
    79   3.3065 242709.58 73810.33  113078.80150656.69
    80   3.3066 242705.24 73796.98  113078.94150658.29
    81   3.3066 242701.45 73784.19  113079.57150660.39
    82   3.3066 242697.16 73770.90  113078.49150660.76
    83   3.3180 239418.56 63272.12  113058.88151822.88
    84   3.3180 239408.06 63238.88  113058.34151826.23
    85   3.3181 239397.94 63206.12  113057.93151829.68
    86   3.3181 239387.13 63172.77  113057.93151833.54
    87   3.3255 237240.18 56269.54  112989.06152574.26
    88   3.3255 237234.34 56254.50  112988.32152575.14
    89   3.3256 237228.83 56239.82  112988.17152576.60
    90   3.3256 237224.09 56225.88  112987.16152577.20
    91   3.3804 222195.05  5021.10  111423.32158024.46
    92   3.3804 222187.70  4992.45  111422.50158028.25
    93   3.3805 222179.22  4962.51  111421.58158031.98

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.

23QB47    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        18.847    18.848    18.847
ecceobj         0.665     0.665     0.665
incobj         21.145    21.145    21.145
qmin            6.305     6.306     6.305
qmax           31.390    31.391    34.025
amean          18.847    18.368    19.342
amin           18.847    17.888    18.667
amax           18.847    18.848    20.348
emean           0.665     0.656     0.652
emin            0.665     0.646     0.637
emax            0.665     0.665     0.672
imean          22.311    22.560    22.282
imin           22.311    22.311    21.919
imax           22.311    22.808    22.798
excite_mean     0.766     0.760     0.755
fracstop        0.000     0.000     0.001
cjmean          2.686     2.723     2.678

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        78.1      80.1      87.0
kozaiamp          0.0       2.0      11.4