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: 14SJ378
# Created Fri Nov 22 02:10:02 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 44 observations of 44
# Arc: 19.29y
# First observation: 2001/09/20
# Last observation: 2021/01/04
# Chi-squared of fit: 26.10 DOF: 82 RMS: 0.14
# Min/Max residuals: -0.50 0.55
# Exact a, adot, b, bdot, g, gdot:
1.873719E-05 4.324173E-02 -1.289924E-05 -3.157405E-02 3.730601E-02 -2.068410E-02
# Covariance matrix:
4.8990E-13 7.8063E-11 -1.5443E-16 -3.1486E-11 -4.7785E-12 6.2630E-11
7.8063E-11 2.5028E-05 -4.9388E-11 -1.0092E-05 -1.5967E-06 2.0075E-05
-1.5443E-16 -4.9388E-11 4.8975E-13 1.9881E-11 3.1404E-12 -3.9613E-11
-3.1486E-11 -1.0092E-05 1.9881E-11 4.0691E-06 6.4389E-07 -8.0944E-06
-4.7785E-12 -1.5967E-06 3.1404E-12 6.4389E-07 1.0831E-07 -1.2810E-06
6.2630E-11 2.0075E-05 -3.9613E-11 -8.0944E-06 -1.2810E-06 1.6102E-05
# lat0 lon0 xBary yBary zBary JD0
9.296009 -25.165717 -0.378966 0.149736 -0.915545 2452172.794881
# Heliocentric elements and errors
Epoch: 2452172.5000 = 2001/09/20
Mean Anomaly: 353.44410 +/- 0.037
Argument of Peri: 214.75117 +/- 0.010
Long of Asc Node: 167.69173 +/- 0.001
Inclination: 37.13740 +/- 0.001
Eccentricity: 0.71210537 +/- 0.0000
Semi-Major Axis: 82.12845164 +/- 0.0000
Time of Perihelion: 2457123.2268 +/- 27.9
Perihelion: 23.64434018 +/- 0.0001
Aphelion: 140.61256310 +/- 0.0001
Period (y) 744.3011 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 24.94588801 +/- 0.0001
Ecliptic Y -11.29445485 +/- 0.0000
Ecliptic Z 4.32968009 +/- 0.0000
Ecliptic XDOT 0.00032373 +/- 0.0000
Ecliptic YDOT 0.00335105 +/- 0.0000
Ecliptic ZDOT -0.00253175 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 27.72400983 +/- 0.0001
Geocenter to KBO 26.80560560 +/- 0.0001
# Hcoef: 8.20
The following table shows the complete astrometric record for 14SJ378. 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 (14SJ378) followed by the observatory code and reference code for the source of the astrometry.
2001 09 20.294138 22 13 11.40 -01 04 22.1 22.4r 14SJ378 645 C~3xr6 2001 09 20.294967 22 13 11.39 -01 04 22.1 21.9i 14SJ378 645 C~3xr6 2001 09 20.297455 22 13 11.40 -01 04 22.0 22.9g 14SJ378 645 C~3xr6 2009 10 16.188058 00 01 11.02 -08 31 54.8 21.7r 14SJ378 645 C~3xr6 2009 10 16.188887 00 01 11.00 -08 31 54.9 21.2i 14SJ378 645 C~3xr6 2014 09 16.265666 01 27 31.212 -12 00 45.89 21.7i 14SJ378 W84 C~3wpO 2014 09 21.25556 01 27 01.67 -12 07 23.5 14SJ378 W84 C~3wpO 2014 09 21.33288 01 27 01.18 -12 07 30.0 22.8V 14SJ378 W84 C~3wpO 2014 09 21.37645 01 27 00.91 -12 07 33.4 14SJ378 W84 C~3wpO 2014 10 22.25616 01 23 29.873 -12 42 30.03 14SJ378 304 C~3wpO 2014 10 23.00486 01 23 24.633 -12 43 10.22 14SJ378 304 C~3wpO 2014 12 12.150423 01 19 03.134 -13 00 19.43 21.5z 14SJ378 W84 C~3wpO 2014 12 12.151777 01 19 03.131 -13 00 19.59 21.8i 14SJ378 W84 C~3wpO 2015 10 17.194821 01 41 21.874 -13 17 15.57 22.6g 14SJ378 W84 C~3wpO 2015 10 23.237240 01 40 38.577 -13 23 04.08 21.7z 14SJ378 W84 C~3wpO 2015 11 02.171569 01 39 28.400 -13 31 03.68 22.6g 14SJ378 W84 C~3wpO 2015 11 06.243444 01 39 00.571 -13 33 44.33 22.7g 14SJ378 W84 C~3wpO 2015 11 18.230446 01 37 44.560 -13 39 25.18 21.8i 14SJ378 W84 C~3wpO 2015 11 20.118073 01 37 33.659 -13 40 00.38 21.7z 14SJ378 W84 C~3wpO 2016 09 07.362055 02 02 26.936 -13 02 19.32 22.2r 14SJ378 W84 C~3wpO 2016 09 07.363432 02 02 26.933 -13 02 19.35 21.8i 14SJ378 W84 C~3wpO 2016 09 07.364821 02 02 26.928 -13 02 19.49 23.1g 14SJ378 W84 C~3wpO 2016 09 30.236453 02 00 27.977 -13 33 44.80 21.8i 14SJ378 W84 C~3wpO 2016 09 30.237830 02 00 27.970 -13 33 44.93 21.9r 14SJ378 W84 C~3wpO 2016 09 30.239208 02 00 27.963 -13 33 45.19 22.7g 14SJ378 W84 C~3wpO 2017 11 23.135214 02 11 27.713 -14 48 37.48 22.0i 14SJ378 W84 C~3wpO 2017 11 23.136603 02 11 27.698 -14 48 37.50 22.4r 14SJ378 W84 C~3wpO 2017 11 27.083096 02 11 03.683 -14 49 19.11 22.0i 14SJ378 W84 C~3wpO 2017 12 14.074508 02 09 38.719 -14 47 51.37 22.4r 14SJ378 W84 C~3wpO 2017 12 14.075886 02 09 38.718 -14 47 51.45 22.1i 14SJ378 W84 C~3wpO 2017 12 22.145423 02 09 11.130 -14 44 43.36 22.2r 14SJ378 W84 C~3wpO 2017 12 23.138108 02 09 08.391 -14 44 14.07 23.0g 14SJ378 W84 C~3wpO 2018 11 16.266349 02 29 17.151 -15 12 59.28 22.8g 14SJ378 W84 C~3wpO 2020 10 14.51202 03 06 34.601 -15 23 55.89 22.0w 14SJ378 F51 C~4A4f 2020 10 14.52370 03 06 34.531 -15 23 56.61 22.1w 14SJ378 F51 C~4A4f 2020 10 14.53539 03 06 34.454 -15 23 57.33 22.1w 14SJ378 F51 C~4A4f 2020 10 14.54705 03 06 34.388 -15 23 58.19 22.0w 14SJ378 F51 C~4A4f 2020 10 23.48516 03 05 35.448 -15 33 42.34 22.1w 14SJ378 F51 C~4JA9 2020 10 23.49601 03 05 35.378 -15 33 42.86 22.0w 14SJ378 F51 C~4JA9 2020 10 23.50684 03 05 35.314 -15 33 43.67 21.9w 14SJ378 F51 C~4JA9 2020 10 23.51766 03 05 35.238 -15 33 44.26 21.9w 14SJ378 F51 C~4JA9 2021 01 04.27430 02 58 08.738 -15 43 19.13 22.2w 14SJ378 F51 C~4UE4 2021 01 04.28530 02 58 08.708 -15 43 18.74 22.3w 14SJ378 F51 C~4UE4 2021 01 04.29634 02 58 08.688 -15 43 18.22 22.2w 14SJ378 F51 C~4UE4
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 -0.04 0.00 -0.12
2 0.0000 0.00 -0.12 0.00 -0.07
3 0.0000 0.00 0.23 0.00 0.17
4 8.0709 0.00 0.05 0.00 0.02
5 8.0709 0.00 -0.18 0.00 -0.04
6 12.9883 0.00 0.08 0.00 -0.11
7 13.0019 0.00 0.19 0.00 0.32
8 13.0022 0.00 0.11 0.00 -0.10
9 13.0023 0.00 0.14 0.00 -0.08
10 13.0868 0.00 -0.44 0.00 0.55
11 13.0889 0.00 -0.50 0.00 0.27
12 13.2262 0.00 0.09 0.00 -0.01
13 13.2262 0.00 0.10 0.00 -0.19
14 14.0723 0.00 -0.03 0.00 -0.04
15 14.0888 0.00 0.06 0.00 -0.10
16 14.1160 0.00 0.11 0.00 0.11
17 14.1272 0.00 0.13 0.00 -0.04
18 14.1600 0.00 -0.02 0.00 -0.09
19 14.1652 0.00 0.05 0.00 -0.09
20 14.9653 0.00 0.02 0.00 -0.11
21 14.9653 0.00 0.06 0.00 -0.02
22 14.9653 0.00 0.07 0.00 -0.04
23 15.0279 0.00 0.04 0.00 0.05
24 15.0279 0.00 0.07 0.00 0.03
25 15.0279 0.00 0.10 0.00 -0.13
26 16.1748 0.00 0.02 0.00 -0.04
27 16.1748 0.00 -0.07 0.00 -0.04
28 16.1856 0.00 -0.07 0.00 -0.04
29 16.2321 0.00 0.03 0.00 0.02
30 16.2321 0.00 0.11 0.00 -0.09
31 16.2542 0.00 -0.03 0.00 -0.06
32 16.2569 0.00 -0.01 0.00 -0.05
33 17.1553 0.00 -0.05 0.00 0.04
34 19.0670 0.00 -0.08 0.00 -0.08
35 19.0670 0.00 -0.01 0.00 0.01
36 19.0671 0.00 -0.04 0.00 0.11
37 19.0671 0.00 0.09 0.00 0.06
38 19.0916 0.00 -0.12 0.00 -0.07
39 19.0916 0.00 -0.02 0.00 0.07
40 19.0916 0.00 0.16 0.00 -0.09
41 19.0916 0.00 0.16 0.00 -0.03
42 19.2908 0.00 -0.17 0.00 0.13
43 19.2909 0.00 -0.13 0.00 0.02
44 19.2909 0.00 0.05 0.00 0.03
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.
14SJ378 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 83.170 83.168 83.172 ecceobj 0.715 0.715 0.715 incobj 37.079 37.079 37.079 qmin 23.264 23.256 23.264 qmax 143.966 144.439 142.963 amean 81.528 80.957 80.811 amin 79.526 77.697 78.138 amax 84.602 85.464 83.533 emean 0.694 0.685 0.694 emin 0.664 0.654 0.665 emax 0.716 0.715 0.715 imean 38.004 38.554 37.753 imin 36.079 36.078 36.076 imax 40.184 40.747 39.658 excite_mean 0.928 0.926 0.925 fracstop 0.203 0.242 0.173 cjmean 2.235 2.240 2.235 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 220.3 217.7 220.8 kozaiamp 4.6 2.6 5.3