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: 23RS61 # Created Tue May 7 01:18:17 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 32 observations of 32 # Arc: 8.18y # First observation: 2015/09/05 # Last observation: 2023/11/10 # Chi-squared of fit: 84.68 DOF: 58 RMS: 0.29 # Min/Max residuals: -0.90 0.52 # Exact a, adot, b, bdot, g, gdot: 2.062595E-05 1.002464E-01 7.675131E-06 3.270088E-02 7.457719E-02 -2.993676E-02 # Covariance matrix: 4.7905E-13 -1.2315E-13 2.7244E-14 -2.4856E-14 -8.6969E-15 -2.8192E-14 -1.2315E-13 7.6171E-14 -2.6101E-14 2.4405E-14 -7.2475E-15 2.8392E-14 2.7244E-14 -2.6101E-14 4.1168E-13 -6.0660E-14 2.0597E-15 -1.0687E-14 -2.4856E-14 2.4405E-14 -6.0660E-14 1.5920E-14 -5.6152E-15 1.0293E-14 -8.6969E-15 -7.2475E-15 2.0597E-15 -5.6152E-15 9.7696E-14 -1.0858E-14 -2.8192E-14 2.8392E-14 -1.0687E-14 1.0293E-14 -1.0858E-14 1.2325E-14 # lat0 lon0 xBary yBary zBary JD0 -8.705837 -37.477855 -0.338662 -0.144133 -0.942289 2457270.572529 # Heliocentric elements and errors Epoch: 2457270.5000 = 2015/09/05 Mean Anomaly: 242.07541 +/- 0.065 Argument of Peri: 120.19479 +/- 0.000 Long of Asc Node: 346.98500 +/- 0.000 Inclination: 19.99879 +/- 0.000 Eccentricity: 0.32541181 +/- 0.0008 Semi-Major Axis: 11.79435482 +/- 0.0000 Time of Perihelion: 2462116.8145 +/- 2.7 Perihelion: 7.95633249 +/- 0.0091 Aphelion: 15.63237715 +/- 0.0091 Period (y) 40.5060 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 11.47772656 +/- 0.0001 Ecliptic Y -8.37638115 +/- 0.0002 Ecliptic Z -2.02949142 +/- 0.0001 Ecliptic XDOT 0.00151943 +/- 0.0000 Ecliptic YDOT 0.00346460 +/- 0.0000 Ecliptic ZDOT 0.00135308 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 14.35350132 +/- 0.0001 Geocenter to KBO 13.40905245 +/- 0.0002 # Hcoef: 11.54
The following table shows the complete astrometric record for 23RS61. 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 (23RS61) followed by the observatory code and reference code for the source of the astrometry.
2015 09 05.07174 21 51 41.98 -22 13 00.5 24.6V 23RS61 W84 C~7Mwd 2015 09 05.14618 21 51 40.93 -22 13 03.1 23RS61 W84 C~7Mwd 2015 09 05.21860 21 51 39.94 -22 13 05.5 23RS61 W84 C~7Mwd 2020 09 15.396392 23 40 30.534 +01 43 09.85 22.0w 23RS61 F51 C~7Mwd 2020 09 15.423414 23 40 30.100 +01 43 08.32 22.9w 23RS61 F51 C~7Mwd 2020 09 15.436911 23 40 29.882 +01 43 07.36 22.5w 23RS61 F51 C~7Mwd 2021 09 05.600402 00 11 07.642 +08 21 10.38 22.4G 23RS61 T09 C~7Mwd 2021 09 06.606889 00 10 52.664 +08 20 24.07 22.5G 23RS61 T09 C~7Mwd 2023 09 15.425595 01 20 42.390 +22 58 32.88 21.9w 23RS61 F52 C~7BxE 2023 09 15.438514 01 20 42.159 +22 58 32.86 21.8w 23RS61 F52 C~7BxE 2023 09 15.451309 01 20 41.992 +22 58 32.89 21.6w 23RS61 F52 C~7BxE 2023 09 15.464389 01 20 41.752 +22 58 32.80 21.7w 23RS61 F52 C~7BxE 2023 10 05.334106 01 15 00.385 +22 50 51.10 21.6w 23RS61 F51 C~7BxE 2023 10 05.354694 01 14 59.988 +22 50 50.39 21.9w 23RS61 F51 C~7BxE 2023 10 05.365019 01 14 59.794 +22 50 49.65 22.0w 23RS61 F51 C~7BxE 2023 10 07.26739 01 14 24.21 +22 49 14.8 21.0R 23RS61 691 C~7BxE 2023 10 07.27832 01 14 23.95 +22 49 14.4 21.1R 23RS61 691 C~7BxE 2023 10 07.28926 01 14 23.76 +22 49 12.8 21.1R 23RS61 691 C~7BxE 2023 10 07.374926 01 14 22.154 +22 49 09.37 21.3G 23RS61 F52 C~7BxE 2023 10 07.375736 01 14 22.148 +22 49 09.01 20.9G 23RS61 F52 C~7BxE 2023 10 10.268156 01 13 27.541 +22 46 29.50 21.0G 23RS61 G96 C~7BxE 2023 10 10.273336 01 13 27.419 +22 46 29.24 20.6G 23RS61 G96 C~7BxE 2023 10 10.279466 01 13 27.311 +22 46 27.77 20.5G 23RS61 G96 C~7BxE 2023 10 10.286606 01 13 27.116 +22 46 27.55 20.4G 23RS61 G96 C~7BxE 2023 10 22.25116 01 09 40.23 +22 32 33.4 20.8R 23RS61 691 C~7Mwd 2023 10 22.29180 01 09 39.45 +22 32 30.2 21.0R 23RS61 691 C~7Mwd 2023 10 23.42807 01 09 18.23 +22 30 58.2 21.5R 23RS61 691 C~7Mwd 2023 10 23.44384 01 09 17.91 +22 30 57.5 21.2R 23RS61 691 C~7Mwd 2023 10 23.45960 01 09 17.61 +22 30 56.0 21.4R 23RS61 691 C~7Mwd 2023 11 10.259905 01 04 09.415 +22 03 56.75 21.8w 23RS61 F52 C~7RSd 2023 11 10.270398 01 04 09.210 +22 03 55.55 21.7w 23RS61 F52 C~7RSd 2023 11 10.291216 01 04 08.895 +22 03 53.37 21.5w 23RS61 F52 C~7RSd
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 0.19 0.00 -0.10
2 0.0002 0.00 -0.07 0.00 -0.12
3 0.0004 0.00 0.14 0.00 -0.06
4 5.0303 0.00 0.02 0.00 -0.04
5 5.0304 0.00 -0.10 0.00 0.23
6 5.0304 0.00 -0.17 0.00 0.17
7 6.0028 0.00 -0.11 0.00 0.05
8 6.0056 0.00 -0.17 0.00 0.06
9 8.0283 0.00 0.26 0.00 0.21
10 8.0284 0.00 -0.19 0.00 0.15
11 8.0284 0.00 0.29 0.00 0.13
12 8.0285 0.00 -0.26 0.00 0.00
13 8.0829 0.00 0.02 0.00 0.28
14 8.0829 0.00 -0.08 0.00 0.52
15 8.0829 0.00 -0.05 0.00 0.26
16 8.0881 0.00 0.51 0.00 0.13
17 8.0882 0.00 -0.25 0.00 0.29
18 8.0882 0.00 0.04 0.00 -0.75
19 8.0884 0.00 -0.14 0.00 0.11
20 8.0884 0.00 0.01 0.00 -0.21
21 8.0964 0.00 0.49 0.00 0.17
22 8.0964 0.00 0.16 0.00 0.21
23 8.0964 0.00 0.32 0.00 -0.90
24 8.0964 0.00 -0.54 0.00 -0.71
25 8.1292 0.00 -0.32 0.00 -0.33
26 8.1293 0.00 -0.38 0.00 -0.28
27 8.1324 0.00 0.19 0.00 -0.36
28 8.1324 0.00 -0.16 0.00 0.25
29 8.1325 0.00 -0.23 0.00 0.07
30 8.1812 0.00 0.43 0.00 0.29
31 8.1812 0.00 -0.14 0.00 0.10
32 8.1813 0.00 0.12 0.00 -0.07
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.
23RS61 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 11.780 11.780 11.780 ecceobj 0.326 0.326 0.326 incobj 19.980 19.980 19.980 qmin 7.459 7.464 7.162 qmax 17.147 16.231 21.410 amean 11.569 11.566 12.829 amin 10.506 11.200 11.780 amax 12.387 11.980 14.365 emean 0.303 0.340 0.416 emin 0.098 0.312 0.326 emax 0.384 0.356 0.493 imean 18.220 16.528 16.582 imin 16.229 15.205 14.327 imax 20.824 20.824 20.824 excite_mean 0.440 0.444 0.506 fracstop 0.006 0.005 0.006 cjmean 3.724 3.722 3.489 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 202.3 185.4 172.0 kozaiamp 179.0 177.8 176.6