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: 23JF4 # Created Sun Dec 22 02:11:24 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 48 observations of 48 # Arc: 7.42y # First observation: 2017/03/02 # Last observation: 2024/08/03 # Chi-squared of fit: 20.39 DOF: 90 RMS: 0.12 # Min/Max residuals: -0.22 0.45 # Exact a, adot, b, bdot, g, gdot: 2.006185E-05 8.706811E-02 2.712892E-06 1.125002E-02 6.642442E-02 -2.831766E-02 # Covariance matrix: 3.5645E-13 -8.1265E-14 7.8826E-15 -5.1710E-15 -6.6389E-15 -3.1501E-14 -8.1265E-14 3.1329E-14 -5.6685E-15 3.5829E-15 6.1253E-15 2.1532E-14 7.8826E-15 -5.6685E-15 3.0850E-13 -4.7638E-14 -5.2276E-15 -4.2431E-15 -5.1710E-15 3.5829E-15 -4.7638E-14 7.9386E-15 7.5949E-16 3.2600E-15 -6.6389E-15 6.1253E-15 -5.2276E-15 7.5949E-16 3.0991E-14 -1.1712E-15 -3.1501E-14 2.1532E-14 -4.2431E-15 3.2600E-15 -1.1712E-15 2.0894E-14 # lat0 lon0 xBary yBary zBary JD0 14.225008 -155.684078 0.673944 0.178203 -0.702269 2457814.820975 # Heliocentric elements and errors Epoch: 2457814.5000 = 2017/03/02 Mean Anomaly: 255.63740 +/- 0.002 Argument of Peri: 202.28324 +/- 0.001 Long of Asc Node: 142.20777 +/- 0.000 Inclination: 15.62397 +/- 0.000 Eccentricity: 0.40737809 +/- 0.0000 Semi-Major Axis: 12.86447736 +/- 0.0001 Time of Perihelion: 2462700.2254 +/- 0.1 Perihelion: 7.62377109 +/- 0.0001 Aphelion: 18.10518363 +/- 0.0001 Period (y) 46.1420 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -14.23936567 +/- 0.0000 Ecliptic Y -5.69775506 +/- 0.0000 Ecliptic Z 3.69942125 +/- 0.0000 Ecliptic XDOT 0.00261582 +/- 0.0000 Ecliptic YDOT -0.00276422 +/- 0.0000 Ecliptic ZDOT 0.00016260 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 15.77698530 +/- 0.0000 Geocenter to KBO 15.05483056 +/- 0.0000 # Hcoef: 10.97
The following table shows the complete astrometric record for 23JF4. 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 (23JF4) followed by the observatory code and reference code for the source of the astrometry.
2017 03 02.320174 13 50 50.246 +03 49 24.72 23.0r 23JF4 W84 C~873Z 2017 04 01.325301 13 46 17.691 +04 34 22.15 22.7r 23JF4 W84 C~873Z 2017 04 01.327055 13 46 17.654 +04 34 22.35 23.3g 23JF4 W84 C~873Z 2017 05 20.104451 13 37 17.239 +05 23 10.77 23.2r 23JF4 W84 C~873Z 2023 03 18.579052 16 22 04.997 -05 14 17.38 22.3G 23JF4 F52 C~6oKp 2023 03 18.594028 16 22 04.963 -05 14 16.25 22.5G 23JF4 F52 C~6oKp 2023 03 18.608795 16 22 04.954 -05 14 15.08 22.2G 23JF4 F52 C~6oKp 2023 03 18.623587 16 22 04.927 -05 14 14.01 22.1G 23JF4 F52 C~6oKp 2023 03 30.589283 16 21 28.687 -04 58 04.85 21.8G 23JF4 F52 C~6oKp 2023 03 30.602735 16 21 28.639 -04 58 03.73 22.0G 23JF4 F52 C~6oKp 2023 03 30.616195 16 21 28.570 -04 58 02.36 22.0G 23JF4 F52 C~6oKp 2023 04 30.537532 16 16 41.498 -04 17 11.60 21.5G 23JF4 F52 C~6oKp 2023 04 30.547758 16 16 41.357 -04 17 10.93 21.8G 23JF4 F52 C~6oKp 2023 04 30.558039 16 16 41.220 -04 17 10.14 21.8G 23JF4 F52 C~6oKp 2023 04 30.568261 16 16 41.100 -04 17 09.26 21.7G 23JF4 F52 C~6oKp 2023 05 12.497950 16 13 56.023 -04 04 21.79 21.4G 23JF4 F51 C~6oKp 2023 05 12.508537 16 13 55.864 -04 04 21.05 21.5G 23JF4 F51 C~6oKp 2023 05 12.519098 16 13 55.714 -04 04 20.59 21.7G 23JF4 F51 C~6oKp 2023 05 12.532266 16 13 55.513 -04 04 19.82 21.8G 23JF4 F51 C~6oKp 2023 05 15.533000 16 13 11.221 -04 01 32.90 21.6w 23JF4 F51 C~6oKp 2023 05 15.552918 16 13 10.911 -04 01 31.97 21.7w 23JF4 F51 C~6oKp 2023 05 15.565142 16 13 10.731 -04 01 31.29 22.3w 23JF4 F51 C~6oKp 2023 05 15.577344 16 13 10.538 -04 01 30.71 21.8w 23JF4 F51 C~6oKp 2023 05 16.544172 16 12 56.104 -04 00 39.55 21.4G 23JF4 T14 C~6oKp 2023 05 16.545386 16 12 56.086 -04 00 39.49 21.5G 23JF4 T14 C~6oKp 2023 05 16.546599 16 12 56.068 -04 00 39.42 21.4G 23JF4 T14 C~6oKp 2023 05 22.448325 16 11 26.635 -03 55 56.29 21.5w 23JF4 F51 C~6oKp 2023 05 22.459672 16 11 26.445 -03 55 55.86 21.6w 23JF4 F51 C~6oKp 2023 05 22.471025 16 11 26.276 -03 55 55.30 21.8w 23JF4 F51 C~6oKp 2023 06 19.394527 16 04 32.846 -03 46 28.86 21.6w 23JF4 F51 C~6rEW 2023 06 19.405792 16 04 32.697 -03 46 28.97 21.6w 23JF4 F51 C~6rEW 2023 06 19.417029 16 04 32.542 -03 46 29.02 21.8w 23JF4 F51 C~6rEW 2023 06 19.428244 16 04 32.398 -03 46 29.04 21.6w 23JF4 F51 C~6rEW 2023 07 08.334256 16 00 53.627 -03 53 23.95 21.7w 23JF4 F52 C~6wtJ 2023 07 08.345225 16 00 53.517 -03 53 24.30 21.7w 23JF4 F52 C~6wtJ 2023 07 08.356203 16 00 53.420 -03 53 24.81 21.9w 23JF4 F52 C~6wtJ 2023 07 08.367214 16 00 53.305 -03 53 25.09 21.7w 23JF4 F52 C~6wtJ 2024 06 01.485880 16 47 18.736 -05 56 05.93 21.7w 23JF4 F51 C~873Z 2024 06 01.497433 16 47 18.543 -05 56 05.83 21.4w 23JF4 F51 C~873Z 2024 06 01.509002 16 47 18.360 -05 56 05.61 21.4w 23JF4 F51 C~873Z 2024 06 01.520735 16 47 18.174 -05 56 05.15 21.4w 23JF4 F51 C~873Z 2024 06 27.304475 16 40 33.109 -05 54 59.01 21.4w 23JF4 F52 C~873Z 2024 06 27.317072 16 40 32.913 -05 54 59.13 21.4w 23JF4 F52 C~873Z 2024 06 27.329722 16 40 32.734 -05 54 59.61 21.3w 23JF4 F52 C~873Z 2024 06 27.342411 16 40 32.560 -05 54 59.83 21.4w 23JF4 F52 C~873Z 2024 08 03.300266 16 34 30.577 -06 26 13.93 21.8w 23JF4 F52 C~8AkT 2024 08 03.314071 16 34 30.483 -06 26 15.45 21.6w 23JF4 F52 C~8AkT 2024 08 03.327931 16 34 30.446 -06 26 15.89 22.0w 23JF4 F52 C~8AkT
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 0.13 0.00 -0.06
2 0.0821 0.00 0.11 0.00 -0.03
3 0.0822 0.00 -0.15 0.00 0.01
4 0.2157 0.00 -0.09 0.00 0.18
5 6.0431 0.00 0.17 0.00 0.04
6 6.0432 0.00 -0.04 0.00 -0.00
7 6.0432 0.00 0.12 0.00 0.01
8 6.0433 0.00 0.01 0.00 -0.09
9 6.0760 0.00 -0.21 0.00 -0.02
10 6.0761 0.00 0.13 0.00 -0.01
11 6.0761 0.00 0.16 0.00 0.25
12 6.1608 0.00 0.00 0.00 -0.04
13 6.1608 0.00 -0.08 0.00 -0.09
14 6.1608 0.00 -0.10 0.00 -0.03
15 6.1608 0.00 0.13 0.00 0.13
16 6.1935 0.00 -0.08 0.00 -0.06
17 6.1935 0.00 -0.10 0.00 0.07
18 6.1936 0.00 0.02 0.00 -0.07
19 6.1936 0.00 -0.05 0.00 -0.06
20 6.2018 0.00 0.07 0.00 0.12
21 6.2019 0.00 -0.04 0.00 -0.02
22 6.2019 0.00 0.04 0.00 0.01
23 6.2019 0.00 -0.08 0.00 -0.07
24 6.2046 0.00 -0.02 0.00 -0.04
25 6.2046 0.00 -0.02 0.00 -0.04
26 6.2046 0.00 -0.01 0.00 -0.03
27 6.2207 0.00 0.06 0.00 -0.15
28 6.2208 0.00 -0.13 0.00 -0.22
29 6.2208 0.00 -0.01 0.00 -0.15
30 6.2973 0.00 -0.09 0.00 0.04
31 6.2973 0.00 -0.00 0.00 -0.02
32 6.2973 0.00 -0.01 0.00 -0.02
33 6.2974 0.00 0.13 0.00 0.01
34 6.3491 0.00 0.02 0.00 -0.02
35 6.3491 0.00 -0.02 0.00 0.06
36 6.3492 0.00 0.12 0.00 -0.03
37 6.3492 0.00 0.00 0.00 0.12
38 7.2503 0.00 -0.07 0.00 0.13
39 7.2503 0.00 -0.09 0.00 -0.06
40 7.2503 0.00 0.05 0.00 -0.12
41 7.2504 0.00 0.19 0.00 0.05
42 7.3210 0.00 0.01 0.00 -0.06
43 7.3210 0.00 -0.17 0.00 0.07
44 7.3210 0.00 -0.09 0.00 -0.16
45 7.3211 0.00 0.09 0.00 -0.12
46 7.4223 0.00 0.28 0.00 0.26
47 7.4223 0.00 -0.18 0.00 -0.19
48 7.4223 0.00 0.22 0.00 0.45
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.
23JF4 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 12.829 12.829 12.828 ecceobj 0.410 0.410 0.410 incobj 15.652 15.652 15.652 qmin 7.565 7.565 7.565 qmax 19.117 18.415 20.037 amean 12.848 12.910 13.227 amin 12.276 12.786 12.757 amax 13.496 13.039 14.343 emean 0.392 0.399 0.399 emin 0.354 0.375 0.363 emax 0.417 0.415 0.417 imean 16.660 15.933 18.811 imin 14.380 14.380 14.380 imax 20.297 18.136 21.666 excite_mean 0.487 0.485 0.514 fracstop 0.001 0.001 0.003 cjmean 3.495 3.487 3.425 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 221.7 221.2 255.4 kozaiamp 15.8 16.0 55.4