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: 21TP15 # Created Fri Nov 22 02:11:11 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 90 observations of 90 # Arc: 4.42y # First observation: 2019/07/04 # Last observation: 2023/12/04 # Chi-squared of fit: 156.91 DOF: 174 RMS: 0.23 # Min/Max residuals: -0.85 0.84 # Exact a, adot, b, bdot, g, gdot: 3.801323E-05 3.627014E-01 -1.125876E-05 -7.936137E-02 1.449521E-01 -1.409523E-01 # Covariance matrix: 6.8667E-10 -1.9555E-10 -5.3337E-10 1.6436E-10 5.2964E-11 -1.6838E-12 -1.9555E-10 4.1667E-10 1.5188E-10 -1.1960E-10 -1.5082E-11 -2.5360E-11 -5.3337E-10 1.5188E-10 4.1542E-10 -1.2801E-10 -4.1182E-11 1.3094E-12 1.6436E-10 -1.1960E-10 -1.2801E-10 2.2005E-10 1.2690E-11 8.7232E-12 5.2964E-11 -1.5082E-11 -4.1182E-11 1.2690E-11 4.0894E-12 -1.3004E-13 -1.6838E-12 -2.5360E-11 1.3094E-12 8.7232E-12 -1.3004E-13 3.2437E-12 # lat0 lon0 xBary yBary zBary JD0 -18.628961 -26.201252 0.792534 -0.199447 -0.591510 2458669.080475 # Heliocentric elements and errors Epoch: 2458668.5000 = 2019/07/04 Mean Anomaly: 340.11914 +/- 0.000 Argument of Peri: 307.85803 +/- 0.000 Long of Asc Node: 98.27507 +/- 0.000 Inclination: 21.99305 +/- 0.000 Eccentricity: 0.59624836 +/- 0.0000 Semi-Major Axis: 13.32136798 +/- 0.0000 Time of Perihelion: 2459649.2411 +/- 0.0 Perihelion: 5.37852420 +/- 0.0000 Aphelion: 21.26421175 +/- 0.0000 Period (y) 48.6218 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 6.07819149 +/- 0.0000 Ecliptic Y -3.88050432 +/- 0.0000 Ecliptic Z -2.20376024 +/- 0.0000 Ecliptic XDOT 0.00033995 +/- 0.0000 Ecliptic YDOT 0.00747208 +/- 0.0000 Ecliptic ZDOT -0.00057022 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 7.54064251 +/- 0.0000 Geocenter to KBO 6.89895333 +/- 0.0000 # Hcoef: 13.92
The following table shows the complete astrometric record for 21TP15. 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 (21TP15) followed by the observatory code and reference code for the source of the astrometry.
2019 07 04.579674 22 52 46.516 -27 21 18.84 23.0G 21TP15 F51 C~59yI 2019 07 04.589962 22 52 46.485 -27 21 21.58 23.7G 21TP15 F51 C~59yI 2019 07 29.473211 22 49 14.172 -28 51 30.38 22.6G 21TP15 F51 C~59yI 2019 07 29.483456 22 49 14.013 -28 51 33.01 22.6G 21TP15 F51 C~59yI 2020 07 21.571698 00 40 08.767 -20 57 24.65 22.3G 21TP15 F51 C~59yI 2020 07 21.582821 00 40 08.829 -20 57 26.70 22.3G 21TP15 F51 C~59yI 2020 07 21.593970 00 40 08.901 -20 57 28.73 22.6G 21TP15 F51 C~59yI 2020 07 21.605119 00 40 08.965 -20 57 31.18 22.1G 21TP15 F51 C~59yI 2020 08 14.522052 00 40 06.119 -22 28 46.98 21.5G 21TP15 F52 C~59yI 2020 08 14.533067 00 40 06.073 -22 28 49.06 19.5G 21TP15 F52 C~59yI 2020 08 14.543978 00 40 05.957 -22 28 52.51 21.7G 21TP15 F52 C~59yI 2020 11 17.314216 00 12 25.571 -24 48 29.36 22.1G 21TP15 F51 C~59yI 2020 12 10.207133 00 12 56.568 -23 17 59.15 22.4G 21TP15 F51 C~59yI 2020 12 10.218110 00 12 56.648 -23 17 56.02 22.1G 21TP15 F51 C~59yI 2020 12 10.229094 00 12 56.739 -23 17 52.73 22.6G 21TP15 F51 C~59yI 2020 12 10.240053 00 12 56.831 -23 17 49.95 22.1G 21TP15 F51 C~59yI 2021 09 04.586494 02 54 08.302 -07 43 44.86 21.2G 21TP15 F51 C~59yI 2021 09 04.598919 02 54 08.313 -07 43 46.83 21.7G 21TP15 F51 C~59yI 2021 09 04.611256 02 54 08.332 -07 43 48.75 21.5G 21TP15 F51 C~59yI 2021 09 04.623633 02 54 08.350 -07 43 50.75 21.9G 21TP15 F51 C~59yI 2021 09 11.545053 02 54 05.520 -08 02 38.92 21.2G 21TP15 F52 C~59yI 2021 09 11.556523 02 54 05.483 -08 02 40.85 21.4G 21TP15 F52 C~59yI 2021 09 11.567988 02 54 05.440 -08 02 42.87 21.5G 21TP15 F52 C~59yI 2021 09 11.579466 02 54 05.399 -08 02 44.61 21.2G 21TP15 F52 C~59yI 2021 09 15.483492 02 53 49.170 -08 13 38.76 21.5G 21TP15 F52 C~59yJ 2021 09 15.495523 02 53 49.094 -08 13 40.80 21.4G 21TP15 F52 C~59yJ 2021 09 15.507603 02 53 49.026 -08 13 42.69 21.6G 21TP15 F52 C~59yJ 2021 09 15.519648 02 53 48.948 -08 13 44.78 21.4G 21TP15 F52 C~59yJ 2021 09 30.42270 02 51 14.733 -08 54 48.30 21.2w 21TP15 F51 C~59yJ 2021 09 30.43626 02 51 14.531 -08 54 50.40 21.3w 21TP15 F51 C~59yJ 2021 09 30.44981 02 51 14.316 -08 54 52.48 21.2w 21TP15 F51 C~59yJ 2021 09 30.46333 02 51 14.102 -08 54 54.79 21.3w 21TP15 F51 C~59yJ 2021 10 14.400843 02 46 54.62 -09 27 31.4 21.3G 21TP15 G96 C~59yJ 2021 10 14.407397 02 46 54.44 -09 27 31.9 20.7G 21TP15 G96 C~59yJ 2021 10 14.413865 02 46 54.30 -09 27 32.2 21.3G 21TP15 G96 C~59yJ 2021 10 14.420263 02 46 54.19 -09 27 33.2 20.9G 21TP15 G96 C~59yJ 2021 10 14.433990 02 46 53.945 -09 27 35.17 21.4G 21TP15 F52 C~59yJ 2021 10 14.445514 02 46 53.695 -09 27 36.55 21.3G 21TP15 F52 C~59yJ 2021 10 14.455888 02 46 53.41 -09 27 37.7 21.3G 21TP15 G96 C~59yJ 2021 10 14.457037 02 46 53.433 -09 27 37.66 21.7G 21TP15 F52 C~59yJ 2021 10 14.468554 02 46 53.166 -09 27 39.09 21.4G 21TP15 F52 C~59yJ 2021 10 14.468879 02 46 53.06 -09 27 39.7 21.0G 21TP15 G96 C~59yJ 2021 10 14.482103 02 46 52.78 -09 27 40.8 21.4G 21TP15 G96 C~59yJ 2021 10 15.396616 02 46 32.71 -09 29 28.0 21.2G 21TP15 G96 C~59yJ 2021 10 15.420436 02 46 32.18 -09 29 30.7 21.0G 21TP15 G96 C~59yJ 2021 10 15.433781 02 46 31.89 -09 29 32.0 21.1G 21TP15 G96 C~59yJ 2021 10 15.446061 02 46 31.59 -09 29 33.1 21.7G 21TP15 G96 C~59yJ 2021 10 31.300343 02 40 05.43 -09 50 18.6 20.8G 21TP15 G96 C~5Br8 2021 10 31.305533 02 40 05.28 -09 50 18.9 21.2G 21TP15 G96 C~5Br8 2021 10 31.310736 02 40 05.14 -09 50 19.0 20.8G 21TP15 G96 C~5Br8 2021 10 31.315935 02 40 05.02 -09 50 19.4 21.4G 21TP15 G96 C~5Br8 2021 11 08.394550 02 36 36.231 -09 52 13.68 21.2w 21TP15 F51 C~5Br8 2021 11 08.405897 02 36 35.936 -09 52 13.47 21.4w 21TP15 F51 C~5Br8 2021 11 08.417285 02 36 35.629 -09 52 13.31 21.1w 21TP15 F51 C~5Br8 2021 11 08.428640 02 36 35.331 -09 52 13.34 21.1w 21TP15 F51 C~5Br8 2021 11 12.378564 02 34 54.907 -09 50 42.28 21.2w 21TP15 F51 C~5Fzf 2021 11 12.390228 02 34 54.608 -09 50 41.97 21.1w 21TP15 F51 C~5Fzf 2021 11 12.401907 02 34 54.310 -09 50 41.57 21.2w 21TP15 F51 C~5Fzf 2021 11 12.413573 02 34 54.006 -09 50 41.13 21.0w 21TP15 F51 C~5Fzf 2021 12 04.259611 02 26 58.69 -09 12 16.6 21.7G 21TP15 G96 C~5JFL 2021 12 04.264795 02 26 58.63 -09 12 15.0 21.1G 21TP15 G96 C~5JFL 2021 12 04.270008 02 26 58.56 -09 12 13.5 21.0G 21TP15 G96 C~5JFL 2021 12 04.275501 02 26 58.40 -09 12 13.0 21.9G 21TP15 G96 C~5JFL 2022 10 28.613381 05 11 46.594 +10 39 23.61 21.2w 21TP15 F51 C~5zIO 2022 10 28.619950 05 11 46.505 +10 39 23.83 21.2w 21TP15 F51 C~5zIO 2022 10 28.626458 05 11 46.426 +10 39 23.91 21.1w 21TP15 F51 C~5zIO 2022 11 30.349534 04 59 47.015 +11 04 51.06 20.9G 21TP15 G96 C~67Jp 2022 11 30.354666 04 59 46.878 +11 04 51.67 21.2G 21TP15 G96 C~67Jp 2022 11 30.359817 04 59 46.716 +11 04 51.31 20.9G 21TP15 G96 C~67Jp 2022 11 30.364961 04 59 46.576 +11 04 52.32 20.9G 21TP15 G96 C~67Jp 2022 12 17.219422 04 51 57.575 +11 33 15.84 21.2G 21TP15 G96 C~67Jp 2022 12 17.225041 04 51 57.449 +11 33 16.42 20.9G 21TP15 G96 C~67Jp 2022 12 17.230641 04 51 57.265 +11 33 16.88 21.4G 21TP15 G96 C~67Jp 2022 12 17.236237 04 51 57.157 +11 33 18.18 21.7G 21TP15 G96 C~67Jp 2022 12 26.246346 04 48 04.806 +11 53 06.32 20.8G 21TP15 G96 C~69gD 2022 12 26.251958 04 48 04.698 +11 53 07.30 21.5G 21TP15 G96 C~69gD 2022 12 26.257563 04 48 04.543 +11 53 08.05 21.3G 21TP15 G96 C~69gD 2022 12 26.263175 04 48 04.399 +11 53 08.77 20.9G 21TP15 G96 C~69gD 2023 01 13.241894 04 42 06.453 +12 41 33.51 21.5w 21TP15 F52 C~6BCA 2023 01 13.250763 04 42 06.275 +12 41 34.73 21.5G 21TP15 G96 C~6BCA 2023 01 13.253487 04 42 06.285 +12 41 35.45 21.4w 21TP15 F52 C~6BCA 2023 01 13.255951 04 42 06.156 +12 41 35.66 21.0G 21TP15 G96 C~6BCA 2023 01 13.261125 04 42 06.077 +12 41 36.02 21.1G 21TP15 G96 C~6BCA 2023 01 13.265127 04 42 06.096 +12 41 37.60 21.2w 21TP15 F52 C~6BCA 2023 01 13.266298 04 42 05.980 +12 41 38.22 21.2G 21TP15 G96 C~6BCA 2023 01 13.276892 04 42 05.917 +12 41 39.72 21.3w 21TP15 F52 C~6BCA 2023 12 04.432878 07 14 06.761 +23 59 39.19 22.1w 21TP15 F52 C~7XPt 2023 12 04.445120 07 14 06.541 +23 59 41.40 21.8w 21TP15 F52 C~7XPt 2023 12 04.457370 07 14 06.283 +23 59 43.31 21.7w 21TP15 F52 C~7XPt 2023 12 04.469685 07 14 06.070 +23 59 44.92 21.9w 21TP15 F52 C~7XPt
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 0.09 0.00 0.62
2 0.0000 0.00 0.06 0.00 -0.05
3 0.0682 0.00 -0.04 0.00 0.17
4 0.0682 0.00 -0.13 0.00 -0.15
5 1.0486 0.00 0.10 0.00 -0.18
6 1.0486 0.00 -0.05 0.00 0.01
7 1.0486 0.00 -0.04 0.00 0.22
8 1.0487 0.00 -0.15 0.00 0.01
9 1.1141 0.00 -0.25 0.00 -0.29
10 1.1142 0.00 0.36 0.00 0.37
11 1.1142 0.00 -0.08 0.00 -0.36
12 1.3737 0.00 0.09 0.00 -0.33
13 1.4364 0.00 0.13 0.00 0.02
14 1.4364 0.00 -0.01 0.00 0.00
15 1.4364 0.00 0.01 0.00 0.14
16 1.4364 0.00 0.05 0.00 -0.23
17 2.1711 0.00 0.07 0.00 -0.05
18 2.1712 0.00 -0.01 0.00 -0.04
19 2.1712 0.00 0.04 0.00 -0.01
20 2.1712 0.00 0.07 0.00 -0.05
21 2.1902 0.00 -0.01 0.00 0.01
22 2.1902 0.00 0.04 0.00 -0.01
23 2.1902 0.00 0.01 0.00 -0.12
24 2.1903 0.00 0.00 0.00 0.06
25 2.2010 0.00 -0.04 0.00 -0.13
26 2.2010 0.00 -0.07 0.00 -0.14
27 2.2010 0.00 0.03 0.00 0.01
28 2.2011 0.00 -0.02 0.00 -0.04
29 2.2419 0.00 -0.14 0.00 -0.05
30 2.2419 0.00 -0.00 0.00 -0.00
31 2.2419 0.00 -0.05 0.00 0.06
32 2.2420 0.00 -0.09 0.00 -0.11
33 2.2801 0.00 0.26 0.00 0.05
34 2.2802 0.00 -0.23 0.00 0.32
35 2.2802 0.00 -0.15 0.00 0.78
36 2.2802 0.00 0.35 0.00 0.54
37 2.2802 0.00 -0.04 0.00 -0.12
38 2.2803 0.00 0.11 0.00 -0.13
39 2.2803 0.00 0.63 0.00 0.23
40 2.2803 0.00 0.08 0.00 0.12
41 2.2803 0.00 -0.02 0.00 0.06
42 2.2803 0.00 -0.26 0.00 -0.25
43 2.2804 0.00 -0.03 0.00 0.20
44 2.2829 0.00 -0.11 0.00 -0.44
45 2.2829 0.00 0.10 0.00 -0.42
46 2.2830 0.00 0.31 0.00 -0.20
47 2.2830 0.00 0.01 0.00 0.10
48 2.3264 0.00 0.09 0.00 -0.05
49 2.3264 0.00 -0.10 0.00 -0.15
50 2.3264 0.00 -0.14 0.00 -0.06
51 2.3265 0.00 0.13 0.00 -0.26
52 2.3486 0.00 0.10 0.00 -0.11
53 2.3486 0.00 0.18 0.00 -0.02
54 2.3486 0.00 0.10 0.00 0.02
55 2.3487 0.00 0.13 0.00 -0.13
56 2.3595 0.00 -0.07 0.00 0.11
57 2.3595 0.00 -0.02 0.00 0.01
58 2.3595 0.00 0.04 0.00 -0.00
59 2.3596 0.00 0.02 0.00 0.02
60 2.4194 0.00 -0.72 0.00 -0.68
61 2.4194 0.00 -0.25 0.00 0.01
62 2.4194 0.00 0.09 0.00 0.60
63 2.4194 0.00 -0.85 0.00 0.14
64 3.3184 0.00 -0.04 0.00 -0.10
65 3.3184 0.00 0.02 0.00 0.00
66 3.3184 0.00 0.22 0.00 -0.03
67 3.4080 0.00 -0.07 0.00 0.21
68 3.4080 0.00 0.06 0.00 0.41
69 3.4080 0.00 -0.18 0.00 -0.37
70 3.4080 0.00 -0.09 0.00 0.23
71 3.4542 0.00 -0.15 0.00 0.09
72 3.4542 0.00 0.29 0.00 -0.02
73 3.4542 0.00 -0.14 0.00 -0.24
74 3.4542 0.00 0.56 0.00 0.38
75 3.4789 0.00 -0.41 0.00 -0.39
76 3.4789 0.00 0.07 0.00 -0.21
77 3.4789 0.00 -0.15 0.00 -0.25
78 3.4789 0.00 -0.21 0.00 -0.33
79 3.5282 0.00 -0.10 0.00 0.15
80 3.5282 0.00 0.57 0.00 0.12
81 3.5282 0.00 0.08 0.00 0.00
82 3.5282 0.00 -0.01 0.00 0.12
83 3.5282 0.00 0.00 0.00 -0.44
84 3.5282 0.00 -0.04 0.00 0.06
85 3.5282 0.00 -0.25 0.00 0.84
86 3.5283 0.00 0.02 0.00 0.06
87 4.4185 0.00 -0.10 0.00 -0.23
88 4.4185 0.00 0.10 0.00 0.11
89 4.4186 0.00 -0.27 0.00 0.16
90 4.4186 0.00 0.07 0.00 -0.11
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.
21TP15 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 13.254 13.254 13.254 ecceobj 0.598 0.598 0.598 incobj 22.033 22.033 22.033 qmin 5.297 5.326 5.326 qmax 21.182 21.182 24.179 amean 10.515 10.195 12.746 amin 8.595 8.160 11.273 amax 13.254 13.254 14.823 emean 0.439 0.429 0.560 emin 0.320 0.205 0.496 emax 0.598 0.598 0.631 imean 18.660 20.892 20.193 imin 16.632 19.451 19.282 imax 20.765 22.970 20.953 excite_mean 0.545 0.564 0.659 fracstop 0.002 0.002 0.002 cjmean 3.903 3.995 3.383 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 189.2 162.0 156.9 kozaiamp 156.5 165.9 170.6