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 Sun Dec 22 02:11:25 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 63 observations of 64 # Arc: 9.24y # First observation: 2015/09/05 # Last observation: 2024/12/02 # Chi-squared of fit: 197.88 DOF: 120 RMS: 0.31 # Min/Max residuals: -0.95 0.95 # Exact a, adot, b, bdot, g, gdot: 2.084527E-05 1.002464E-01 8.027894E-06 3.270084E-02 7.457754E-02 -2.993614E-02 # Covariance matrix: 1.4046E-09 -8.8490E-08 5.0288E-10 -6.9697E-08 -9.2895E-10 -9.4389E-07 -8.8490E-08 6.6581E-06 -3.1623E-08 4.4173E-06 5.8364E-08 5.9981E-05 5.0288E-10 -3.1623E-08 1.8084E-10 -2.5114E-08 -3.3279E-10 -3.3775E-07 -6.9697E-08 4.4173E-06 -2.5114E-08 4.5805E-06 4.6013E-08 4.7658E-05 -9.2895E-10 5.8364E-08 -3.3279E-10 4.6013E-08 6.1492E-10 6.2263E-07 -9.4389E-07 5.9981E-05 -3.3775E-07 4.7658E-05 6.2263E-07 6.4934E-04 # 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: 242.07255 +/- 0.001 Argument of Peri: 120.19694 +/- 0.000 Long of Asc Node: 346.98499 +/- 0.000 Inclination: 19.99877 +/- 0.000 Eccentricity: 0.32541619 +/- 0.0000 Semi-Major Axis: 11.79417180 +/- 0.0000 Time of Perihelion: 2462116.8191 +/- 0.0 Perihelion: 7.95615735 +/- 0.0000 Aphelion: 15.63218626 +/- 0.0000 Period (y) 40.5051 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 11.47767912 +/- 0.0000 Ecliptic Y -8.37634108 +/- 0.0000 Ecliptic Z -2.02947714 +/- 0.0000 Ecliptic XDOT 0.00151944 +/- 0.0000 Ecliptic YDOT 0.00346457 +/- 0.0000 Ecliptic ZDOT 0.00135306 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 14.35343797 +/- 0.0000 Geocenter to KBO 13.40898897 +/- 0.0000 # Hcoef: 11.25
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 2024 09 01.533181 02 12 37.026 +30 27 29.46 21.1w 23RS61 F52 C~8DsV 2024 09 01.543718 02 12 36.941 +30 27 30.52 21.2w 23RS61 F52 C~8DsV 2024 09 01.554291 02 12 36.864 +30 27 31.60 21.3w 23RS61 F52 C~8DsV 2024 09 01.564916 02 12 36.787 +30 27 32.62 21.2w 23RS61 F52 C~8DsV 2024 09 29.581535 02 06 42.895 +30 54 26.26 21.3w 23RS61 F51 C~8Hed 2024 09 29.595350 02 06 42.630 +30 54 26.54 21.4w 23RS61 F51 C~8Hed 2024 09 29.608998 02 06 42.393 +30 54 26.81 21.4w 23RS61 F51 C~8Hed 2024 09 29.622616 02 06 42.164 +30 54 26.84 21.5w 23RS61 F51 C~8Hed 2024 10 10.334042 02 03 20.969 +30 54 18.69 21.0w 23RS61 F51 C~8Hed 2024 10 10.345848 02 03 20.715 +30 54 18.62 21.0w 23RS61 F51 C~8Hed 2024 10 10.357701 02 03 20.488 +30 54 18.42 21.3w 23RS61 F51 C~8Hed 2024 10 10.369859 02 03 20.259 +30 54 18.57 21.1w 23RS61 F51 C~8Hed 2024 10 22.459113 01 59 09.893 +30 47 16.28 20.9w 23RS61 F51 C~8Mns 2024 10 22.471258 01 59 09.634 +30 47 15.74 21.2w 23RS61 F51 C~8Mns 2024 10 22.483367 01 59 09.354 +30 47 15.14 20.9w 23RS61 F51 C~8Mns 2024 10 22.495463 01 59 09.105 +30 47 14.41 21.2w 23RS61 F51 C~8Mns 2024 10 31.285918 01 56 02.368 +30 37 56.42 20.2G 23RS61 V00 C~8Mns 2024 10 31.291542 01 56 02.245 +30 37 55.92 20.6G 23RS61 V00 C~8Mns 2024 10 31.297152 01 56 02.116 +30 37 55.52 20.6G 23RS61 V00 C~8Mns 2024 10 31.302774 01 56 01.993 +30 37 55.13 20.3G 23RS61 V00 C~8Mns 2024 11 02.88894 01 55 07.68 +30 34 34.8 19.9R 23RS61 157 C~8Q7R 2024 11 02.91335 01 55 07.17 +30 34 33.5 19.7R 23RS61 157 C~8Q7R 2024 11 03.639780 01 54 52.03 +30 33 34.2 19.3R 23RS61 D29 C~8Q7R 2024 11 03.645968 01 54 51.92 +30 33 34.6 19.2R 23RS61 D29 C~8Q7R 2024 11 03.646851 01 54 51.85 +30 33 34.8 20.3R 23RS61 D29 C~8Q7R 2024 11 03.653038 01 54 51.97 +30 33 32.9 19.4R 23RS61 D29 C~8Q7R 2024 12 01.80865 01 46 27.90 +29 45 42.7 20.2R 23RS61 157 C~8Smu 2024 12 01.83414 01 46 27.60 +29 45 39.5 20.4R 23RS61 157 C~8Smu 2024 12 02.217345 01 46 22.314 +29 44 56.18 20.7G 23RS61 V00 C~8Smu 2024 12 02.222952 01 46 22.256 +29 44 55.64 21.0G 23RS61 V00 C~8Smu 2024 12 02.228558 01 46 22.177 +29 44 54.85 20.6G 23RS61 V00 C~8Smu 2024 12 02.234172 01 46 22.098 +29 44 53.99 20.8G 23RS61 V00 C~8Smu
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 0.17 0.00 -0.18
2 0.0002 0.00 -0.09 0.00 -0.20
3 0.0004 0.00 0.12 0.00 -0.14
4 5.0303 0.00 0.16 0.00 0.08
5 5.0304 0.00 0.04 0.00 0.34
6 5.0304 0.00 -0.03 0.00 0.28
7 6.0028 0.00 0.02 0.00 0.18
8 6.0056 0.00 -0.04 0.00 0.19
9 8.0283 0.00 0.12 0.00 0.15
10 8.0284 0.00 -0.33 0.00 0.09
11 8.0284 0.00 0.15 0.00 0.08
12 8.0285 0.00 -0.39 0.00 -0.05
13 8.0829 0.00 -0.07 0.00 0.23
14 8.0829 0.00 -0.17 0.00 0.47
15 8.0829 0.00 -0.14 0.00 0.21
16 8.0881 0.00 0.42 0.00 0.08
17 8.0882 0.00 -0.34 0.00 0.24
18 8.0882 0.00 -0.04 0.00 -0.80
19 8.0884 0.00 -0.22 0.00 0.06
20 8.0884 0.00 -0.08 0.00 -0.26
21 8.0964 0.00 0.41 0.00 0.12
22 8.0964 0.00 0.08 0.00 0.16
23 8.0964 0.00 0.24 0.00 -0.95
24 8.0964 0.00 -0.62 0.00 -0.76
25 8.1292 0.00 -0.37 0.00 -0.37
26 8.1293 0.00 -0.43 0.00 -0.32
27 8.1324 0.00 0.14 0.00 -0.40
28 8.1324 0.00 -0.21 0.00 0.21
29 8.1325 0.00 -0.27 0.00 0.03
30 8.1812 0.00 0.44 0.00 0.27
31 8.1812 0.00 -0.13 0.00 0.08
32 8.1813 0.00 0.12 0.00 -0.10
33 8.9924 0.00 -0.16 0.00 0.26
34 8.9924 0.00 -0.24 0.00 0.29
35 8.9924 0.00 -0.21 0.00 0.35
36 8.9925 0.00 -0.16 0.00 0.33
37 9.0692 0.00 -0.04 0.00 0.22
38 9.0692 0.00 -0.32 0.00 0.30
39 9.0692 0.00 -0.22 0.00 0.38
40 9.0693 0.00 -0.01 0.00 0.23
41 9.0986 0.00 -0.13 0.00 -0.07
42 9.0986 0.00 -0.36 0.00 0.04
43 9.0987 0.00 -0.16 0.00 0.02
44 9.0987 0.00 0.11 0.00 0.35
45 9.1318 0.00 -0.21 0.00 0.11
46 9.1318 0.00 -0.15 0.00 0.20
47 9.1319 0.00 -0.41 0.00 0.25
48 9.1319 0.00 -0.22 0.00 0.16
49 9.1560 0.00 -0.00 0.00 -0.07
50 9.1560 0.00 -0.03 0.00 -0.15
51 9.1560 0.00 -0.15 0.00 -0.13
52 9.1560 0.00 -0.18 0.00 -0.10
53 9.1631 0.00 0.09 0.00 -0.75
54 9.1632 0.00 0.23 0.00 -0.10
55 9.1651 0.00 0.62 0.00 -0.88
56 9.1652 0.00 0.94 0.00 0.03
57 9.1652 0.00 0.17 0.00 0.30
58 9.1652 0.00 ( 3.95) 0.00 ( -1.09)
59 9.2423 0.00 0.08 0.00 0.34
60 9.2423 0.00 0.95 0.00 0.01
61 9.2434 0.00 0.10 0.00 -0.26
62 9.2434 0.00 0.40 0.00 -0.16
63 9.2434 0.00 0.39 0.00 -0.32
64 9.2434 0.00 0.37 0.00 -0.54
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 11.779 11.779 11.779 ecceobj 0.326 0.326 0.326 incobj 19.980 19.980 19.980 qmin 7.167 7.377 7.451 qmax 17.976 20.354 16.759 amean 12.370 13.084 11.845 amin 11.779 11.780 11.242 amax 12.736 13.945 12.182 emean 0.392 0.415 0.350 emin 0.326 0.326 0.297 emax 0.423 0.462 0.382 imean 18.441 17.410 18.512 imin 17.303 14.808 16.571 imax 20.824 20.824 21.798 excite_mean 0.505 0.515 0.473 fracstop 0.002 0.001 0.003 cjmean 3.554 3.448 3.657 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 181.3 134.7 188.2 kozaiamp 62.4 17.9 68.4