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: 17CE60 # Created Wed Mar 26 01:11:06 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 62 observations of 62 # Arc: 22.14y # First observation: 2003/01/03 # Last observation: 2025/02/23 # Chi-squared of fit: 26.90 DOF: 118 RMS: 0.12 # Min/Max residuals: -0.32 0.27 # Exact a, adot, b, bdot, g, gdot: 2.341492E-05 6.470724E-02 3.360170E-06 9.221048E-03 4.379157E-02 1.802616E-02 # Covariance matrix: 3.6845E-13 -4.3488E-14 1.6346E-14 -3.7635E-15 1.4302E-14 -1.9961E-14 -4.3488E-14 6.9905E-15 -3.6148E-15 8.0159E-16 -3.9985E-16 4.2812E-15 1.6346E-14 -3.6148E-15 2.5148E-13 -1.8492E-14 -1.3155E-15 -2.7524E-15 -3.7635E-15 8.0159E-16 -1.8492E-14 1.5592E-15 -5.2433E-16 6.2897E-16 1.4302E-14 -3.9985E-16 -1.3155E-15 -5.2433E-16 7.3370E-14 -1.9813E-15 -1.9961E-14 4.2812E-15 -2.7524E-15 6.2897E-16 -1.9813E-15 3.3406E-15 # lat0 lon0 xBary yBary zBary JD0 -24.408567 103.406229 0.014968 -0.404264 -0.890852 2452642.896995 # Heliocentric elements and errors Epoch: 2452642.5000 = 2003/01/03 Mean Anomaly: 14.48507 +/- 0.001 Argument of Peri: 240.10567 +/- 0.002 Long of Asc Node: 174.35868 +/- 0.000 Inclination: 24.62216 +/- 0.000 Eccentricity: 0.50570769 +/- 0.0000 Semi-Major Axis: 42.82956263 +/- 0.0023 Time of Perihelion: 2448523.1176 +/- 0.5 Perihelion: 21.17032334 +/- 0.0015 Aphelion: 64.48880193 +/- 0.0036 Period (y) 280.3004 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -5.03543581 +/- 0.0000 Ecliptic Y 21.18760386 +/- 0.0001 Ecliptic Z -9.43647187 +/- 0.0001 Ecliptic XDOT -0.00423555 +/- 0.0000 Ecliptic YDOT 0.00028802 +/- 0.0000 Ecliptic ZDOT 0.00005946 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 23.73415524 +/- 0.0001 Geocenter to KBO 22.83533606 +/- 0.0001 # Hcoef: 8.41
The following table shows the complete astrometric record for 17CE60. 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 (17CE60) followed by the observatory code and reference code for the source of the astrometry.
2003 01 03.396252 06 48 46.34 -01 32 05.8 17CE60 T14 C~89UW 2003 01 03.401245 06 48 46.30 -01 32 05.7 17CE60 T14 C~89UW 2003 01 29.359233 06 45 29.62 -01 19 23.6 17CE60 T14 C~89UW 2003 01 29.363965 06 45 29.58 -01 19 23.4 17CE60 T14 C~89UW 2014 02 11.154086 08 58 26.88 +00 27 07.8 22.2z 17CE60 W84 C~89UW 2014 02 11.157892 08 58 26.86 +00 27 07.8 22.5z 17CE60 W84 C~89UW 2014 02 11.161694 08 58 26.84 +00 27 08.1 22.5z 17CE60 W84 C~89UW 2014 02 11.165525 08 58 26.81 +00 27 08.2 22.3z 17CE60 W84 C~89UW 2014 02 11.173142 08 58 26.75 +00 27 08.6 22.4z 17CE60 W84 C~89UW 2015 01 16.471112 09 10 46.85 +00 19 54.2 17CE60 T09 C~89UW 2015 01 21.43754 09 10 16.79 +00 21 56.8 22.7i 17CE60 T09 C~8ifR 2015 01 21.44452 09 10 16.74 +00 21 57.0 22.9i 17CE60 T09 C~8ifR 2015 01 21.45697 09 10 16.65 +00 21 57.4 22.9i 17CE60 T09 C~8ifR 2015 01 21.52917 09 10 16.21 +00 21 59.4 22.6i 17CE60 T09 C~8ifR 2015 01 21.53196 09 10 16.19 +00 21 59.4 22.7i 17CE60 T09 C~8ifR 2015 01 21.54908 09 10 16.08 +00 21 59.9 22.6i 17CE60 T09 C~8ifR 2015 01 27.39521 09 09 39.60 +00 24 47.8 22.2y 17CE60 T09 C~8ifR 2015 01 27.41453 09 09 39.47 +00 24 48.3 22.4y 17CE60 T09 C~8ifR 2015 01 27.43096 09 09 39.36 +00 24 49.0 22.3y 17CE60 T09 C~8ifR 2015 01 27.53242 09 09 38.71 +00 24 52.2 22.9y 17CE60 T09 C~8ifR 2015 02 18.175888 09 07 21.71 +00 38 20.7 23.7g 17CE60 W84 C~89UW 2015 03 18.33529 09 04 52.03 +01 00 11.2 23.4r 17CE60 T09 C~8ifR 2015 03 18.35031 09 04 51.96 +01 00 12.0 23.3r 17CE60 T09 C~8ifR 2015 03 18.36546 09 04 51.90 +01 00 12.9 23.2r 17CE60 T09 C~8ifR 2015 03 18.37860 09 04 51.85 +01 00 13.4 23.3r 17CE60 T09 C~8ifR 2015 03 18.38081 09 04 51.84 +01 00 13.2 23.5r 17CE60 T09 C~8ifR 2015 03 25.40010 09 04 24.78 +01 05 50.9 24.3g 17CE60 T09 C~8ifR 2015 03 25.41289 09 04 24.71 +01 05 51.2 24.3g 17CE60 T09 C~8ifR 2015 03 25.42793 09 04 24.65 +01 05 51.9 24.1g 17CE60 T09 C~8ifR 2015 11 08.55142 09 22 48.47 +00 32 21.0 23.8r 17CE60 T09 C~8ifR 2015 11 08.57206 09 22 48.50 +00 32 20.3 23.4r 17CE60 T09 C~8ifR 2015 11 08.64203 09 22 48.60 +00 32 18.1 23.0r 17CE60 T09 C~8ifR 2015 11 10.63506 09 22 51.66 +00 31 19.0 23.4i 17CE60 T09 C~8ifR 2015 11 10.63776 09 22 51.67 +00 31 19.0 23.3i 17CE60 T09 C~8ifR 2015 11 14.58724 09 22 56.20 +00 29 28.6 24.9g 17CE60 T09 C~8ifR 2015 11 14.60218 09 22 56.23 +00 29 28.1 24.6g 17CE60 T09 C~8ifR 2015 11 14.63858 09 22 56.26 +00 29 27.2 24.4g 17CE60 T09 C~8ifR 2016 01 09.44737 09 20 38.20 +00 23 56.7 22.5y 17CE60 T09 C~8ifR 2016 01 09.45763 09 20 38.14 +00 23 57.1 22.6y 17CE60 T09 C~8ifR 2016 01 09.47342 09 20 38.07 +00 23 57.2 22.7y 17CE60 T09 C~8ifR 2016 01 09.49800 09 20 37.93 +00 23 57.6 22.7y 17CE60 T09 C~8ifR 2016 01 09.52002 09 20 37.80 +00 23 58.1 23.4y 17CE60 T09 C~8ifR 2016 01 09.54731 09 20 37.66 +00 23 58.6 22.8y 17CE60 T09 C~8ifR 2016 01 09.57457 09 20 37.51 +00 23 58.9 22.7y 17CE60 T09 C~8ifR 2016 01 09.57726 09 20 37.50 +00 23 58.9 22.6y 17CE60 T09 C~8ifR 2016 01 12.353822 09 20 22.60 +00 24 48.7 17CE60 T09 C~89UW 2016 01 12.367085 09 20 22.53 +00 24 48.9 17CE60 T09 C~89UW 2016 01 14.280508 09 20 11.92 +00 25 27.0 23.1r 17CE60 W84 C~89UW 2016 11 28.56332 09 31 32.90 +00 30 05.5 23.8r 17CE60 T09 C~89UW 2016 11 28.58230 09 31 32.88 +00 30 05.0 23.5r 17CE60 T09 C~89UW 2016 11 28.63097 09 31 32.82 +00 30 04.4 23.6r 17CE60 T09 C~89UW 2017 01 02.418269 09 29 57.04 +00 28 34.5 17CE60 T09 C~89UW 2017 01 28.406130 09 27 36.67 +00 37 52.7 17CE60 T09 C~89UW 2017 02 01.49788 09 27 11.84 +00 40 03.7 23.1i 17CE60 T09 C~89UW 2017 02 01.50344 09 27 11.81 +00 40 04.1 23.1i 17CE60 T09 C~89UW 2017 02 01.51720 09 27 11.72 +00 40 04.4 23.1i 17CE60 T09 C~89UW 2017 02 01.53911 09 27 11.58 +00 40 05.2 23.1i 17CE60 T09 C~89UW 2017 02 01.54461 09 27 11.54 +00 40 05.2 23.0i 17CE60 T09 C~89UW 2017 02 01.55276 09 27 11.50 +00 40 05.6 22.9i 17CE60 T09 C~89UW 2025 02 23.291410 10 25 54.374 +01 30 52.95 24.0G 17CE60 G37 C~8ifR 2025 02 23.338520 10 25 54.104 +01 30 55.04 17CE60 G37 C~8ifR 2025 02 23.385560 10 25 53.872 +01 30 57.01 17CE60 G37 C~8ifR
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 -0.01 0.00 -0.01
2 0.0000 0.00 0.00 0.00 0.02
3 0.0711 0.00 0.05 0.00 0.03
4 0.0711 0.00 -0.06 0.00 0.03
5 11.1068 0.00 0.01 0.00 0.01
6 11.1068 0.00 0.08 0.00 -0.15
7 11.1068 0.00 0.15 0.00 0.00
8 11.1068 0.00 0.08 0.00 -0.05
9 11.1068 0.00 -0.08 0.00 0.04
10 12.0358 0.00 0.17 0.00 -0.06
11 12.0494 0.00 0.04 0.00 -0.03
12 12.0494 0.00 -0.05 0.00 -0.02
13 12.0494 0.00 -0.23 0.00 0.05
14 12.0496 0.00 -0.04 0.00 0.13
15 12.0497 0.00 -0.08 0.00 0.06
16 12.0497 0.00 -0.12 0.00 0.10
17 12.0657 0.00 0.03 0.00 -0.05
18 12.0658 0.00 -0.05 0.00 -0.15
19 12.0658 0.00 -0.12 0.00 0.05
20 12.0661 0.00 -0.07 0.00 0.12
21 12.1253 0.00 -0.04 0.00 0.15
22 12.2024 0.00 -0.14 0.00 -0.12
23 12.2025 0.00 -0.21 0.00 -0.05
24 12.2025 0.00 -0.13 0.00 0.12
25 12.2026 0.00 -0.03 0.00 -0.01
26 12.2026 0.00 -0.03 0.00 -0.32
27 12.2218 0.00 0.27 0.00 0.18
28 12.2218 0.00 -0.09 0.00 -0.12
29 12.2219 0.00 -0.18 0.00 -0.14
30 12.8464 0.00 0.17 0.00 0.06
31 12.8465 0.00 0.12 0.00 -0.02
32 12.8467 0.00 -0.03 0.00 -0.10
33 12.8521 0.00 -0.06 0.00 0.02
34 12.8521 0.00 0.04 0.00 0.09
35 12.8629 0.00 -0.28 0.00 0.17
36 12.8630 0.00 -0.01 0.00 0.07
37 12.8631 0.00 0.02 0.00 0.14
38 13.0159 0.00 -0.02 0.00 -0.05
39 13.0159 0.00 -0.10 0.00 0.18
40 13.0160 0.00 0.13 0.00 0.02
41 13.0160 0.00 0.02 0.00 0.01
42 13.0161 0.00 -0.15 0.00 0.14
43 13.0162 0.00 -0.04 0.00 0.18
44 13.0162 0.00 -0.08 0.00 0.02
45 13.0162 0.00 -0.02 0.00 -0.03
46 13.0238 0.00 0.11 0.00 -0.05
47 13.0239 0.00 0.16 0.00 -0.10
48 13.0291 0.00 -0.12 0.00 -0.16
49 13.9033 0.00 0.15 0.00 -0.09
50 13.9033 0.00 0.09 0.00 -0.28
51 13.9034 0.00 -0.19 0.00 -0.09
52 13.9987 0.00 0.10 0.00 -0.06
53 14.0698 0.00 0.03 0.00 -0.08
54 14.0810 0.00 0.12 0.00 -0.03
55 14.0811 0.00 0.18 0.00 0.18
56 14.0811 0.00 0.12 0.00 0.03
57 14.0812 0.00 0.06 0.00 0.10
58 14.0812 0.00 -0.03 0.00 -0.09
59 14.0812 0.00 0.13 0.00 0.04
60 22.1407 0.00 -0.04 0.00 -0.22
61 22.1408 0.00 -0.23 0.00 0.08
62 22.1410 0.00 0.14 0.00 0.27
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.
17CE60 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 42.836 42.837 42.836 ecceobj 0.507 0.507 0.507 incobj 24.635 24.635 24.635 qmin 20.919 20.919 20.916 qmax 64.666 64.709 64.666 amean 42.326 42.227 42.174 amin 41.804 41.310 41.059 amax 42.928 43.154 42.928 emean 0.491 0.486 0.485 emin 0.467 0.456 0.444 emax 0.507 0.507 0.507 imean 24.704 24.955 24.972 imin 23.871 23.876 23.865 imax 26.239 26.919 27.281 excite_mean 0.645 0.644 0.643 fracstop 0.028 0.028 0.033 cjmean 2.597 2.598 2.598 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 246.1 246.3 247.1 kozaiamp 11.5 9.9 10.7