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: 17OG69 # Created Sat Apr 20 01:18:14 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 61 observations of 61 # Arc: 15.34y # First observation: 2008/08/28 # Last observation: 2023/12/31 # Chi-squared of fit: 52.18 DOF: 116 RMS: 0.16 # Min/Max residuals: -0.50 0.60 # Exact a, adot, b, bdot, g, gdot: 1.715378E-05 2.851133E-02 -2.216491E-06 -3.903650E-03 2.712405E-02 1.439513E-03 # Covariance matrix: 1.8161E-13 -2.5540E-14 -3.4362E-15 2.2744E-15 1.1701E-14 -3.4385E-14 -2.5540E-14 1.2713E-14 4.1039E-15 -1.6951E-15 1.4485E-14 2.5880E-14 -3.4362E-15 4.1039E-15 1.5137E-13 -1.2080E-14 8.0117E-15 8.7742E-15 2.2744E-15 -1.6951E-15 -1.2080E-14 1.2933E-15 -1.6443E-15 -3.8107E-15 1.1701E-14 1.4485E-14 8.0117E-15 -1.6443E-15 7.4674E-14 2.5767E-14 -3.4385E-14 2.5880E-14 8.7742E-15 -3.8107E-15 2.5767E-14 5.8108E-14 # lat0 lon0 xBary yBary zBary JD0 -24.259278 31.637974 0.833456 -0.232014 -0.514918 2454707.117684 # Heliocentric elements and errors Epoch: 2454706.5000 = 2008/08/28 Mean Anomaly: 21.49319 +/- 0.010 Argument of Peri: 227.02405 +/- 0.011 Long of Asc Node: 140.11244 +/- 0.000 Inclination: 25.22870 +/- 0.000 Eccentricity: 0.07343636 +/- 0.0000 Semi-Major Axis: 40.09903228 +/- 0.0016 Time of Perihelion: 2449169.2051 +/- 2.5 Perihelion: 37.15430514 +/- 0.0018 Aphelion: 43.04375942 +/- 0.0020 Period (y) 253.9271 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.53567029 +/- 0.0003 Ecliptic Y 17.21359047 +/- 0.0002 Ecliptic Z -15.14774734 +/- 0.0002 Ecliptic XDOT -0.00152845 +/- 0.0000 Ecliptic YDOT 0.00243650 +/- 0.0000 Ecliptic ZDOT -0.00041905 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.39139515 +/- 0.0003 Geocenter to KBO 36.86764041 +/- 0.0004 # Hcoef: 5.80
The following table shows the complete astrometric record for 17OG69. 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 (17OG69) followed by the observatory code and reference code for the source of the astrometry.
2008 08 28.61693 02 31 13.32 -10 45 44.0 21.3r 17OG69 568 C~4UPf 2008 08 28.62328 02 31 13.31 -10 45 44.3 17OG69 568 C~4UPf 2008 09 29.54956 02 29 37.39 -11 09 47.0 17OG69 568 C~4UPf 2008 09 29.56459 02 29 37.32 -11 09 47.7 17OG69 568 C~4UPf 2008 09 29.57961 02 29 37.25 -11 09 48.2 17OG69 568 C~4UPf 2008 10 03.40976 02 29 20.72 -11 12 28.4 17OG69 568 C~4UPf 2008 10 03.42476 02 29 20.66 -11 12 28.9 17OG69 568 C~4UPf 2008 10 03.44728 02 29 20.55 -11 12 29.9 17OG69 568 C~4UPf 2016 01 02.122211 03 08 12.12 -08 52 18.8 17OG69 W84 C~3k5O 2016 01 02.124954 03 08 12.12 -08 52 18.8 17OG69 W84 C~3k5O 2017 07 26.56934 03 28 11.005 -07 00 06.62 21.3r 17OG69 568 C~2yfs 2017 07 27.61906 03 28 14.225 -07 00 34.93 21.3r 17OG69 568 C~2yfs 2017 09 21.28538 03 28 28.292 -07 35 53.60 17OG69 G37 C~2yfs 2017 09 22.29523 03 28 25.750 -07 36 36.90 21.2R 17OG69 G37 C~2yfs 2017 11 23.13570 03 23 49.546 -08 08 23.54 21.3r 17OG69 304 C~2yfs 2017 11 23.19409 03 23 49.234 -08 08 24.29 17OG69 304 C~2yfs 2017 12 13.08547 03 22 10.713 -08 09 24.80 17OG69 304 C~2yfs 2017 12 14.07164 03 22 06.264 -08 09 19.02 17OG69 304 C~2yfs 2018 11 09.20880 03 31 26.764 -07 39 42.03 17OG69 G37 C~2yfs 2018 11 09.26968 03 31 26.454 -07 39 43.41 17OG69 G37 C~2yfs 2018 12 03.02686 03 29 21.858 -07 45 03.50 21.2r 17OG69 304 C~2yfs 2018 12 03.06434 03 29 21.670 -07 45 03.70 21.3r 17OG69 304 C~2yfs 2020 09 14.57410 03 47 29.401 -06 16 44.12 22.2w 17OG69 F51 C~48Nk 2020 09 14.58543 03 47 29.388 -06 16 44.73 22.0w 17OG69 F51 C~48Nk 2020 09 14.59677 03 47 29.373 -06 16 45.13 21.9w 17OG69 F51 C~48Nk 2020 09 14.60810 03 47 29.357 -06 16 45.76 21.8w 17OG69 F51 C~48Nk 2020 10 08.60168 03 46 27.585 -06 32 58.99 21.4i 17OG69 F51 C~4AVA 2020 10 08.61058 03 46 27.553 -06 32 59.54 21.7i 17OG69 F51 C~4AVA 2020 10 08.61955 03 46 27.509 -06 32 59.62 21.6i 17OG69 F51 C~4AVA 2020 10 08.62846 03 46 27.467 -06 32 59.94 21.8i 17OG69 F51 C~4AVA 2020 12 10.34534 03 41 21.956 -06 55 17.27 21.7w 17OG69 F51 C~4OF8 2020 12 10.35731 03 41 21.902 -06 55 17.44 21.6w 17OG69 F51 C~4OF8 2020 12 10.36930 03 41 21.838 -06 55 17.48 22.0w 17OG69 F51 C~4OF8 2021 01 07.33124 03 39 27.907 -06 49 13.63 21.8w 17OG69 F51 C~4UPf 2021 01 07.35350 03 39 27.832 -06 49 13.16 22.0w 17OG69 F51 C~4UPf 2021 01 07.36461 03 39 27.799 -06 49 13.03 22.2w 17OG69 F51 C~4UPf 2021 01 11.154320 03 39 16.883 -06 47 36.93 22.4G 17OG69 G37 C~4UPf 2021 01 11.213810 03 39 16.717 -06 47 35.18 17OG69 G37 C~4UPf 2021 01 11.254110 03 39 16.602 -06 47 34.44 17OG69 G37 C~4UPf 2021 11 27.409403 03 48 47.420 -06 28 57.78 21.5w 17OG69 F51 C~5HL0 2021 11 27.420682 03 48 47.379 -06 28 57.81 21.6w 17OG69 F51 C~5HL0 2021 11 27.431965 03 48 47.307 -06 28 58.04 21.8w 17OG69 F51 C~5HL0 2022 10 31.475049 03 57 25.024 -05 54 18.87 21.5w 17OG69 F52 C~5zB5 2022 10 31.487933 03 57 24.977 -05 54 19.34 21.5w 17OG69 F52 C~5zB5 2022 10 31.500868 03 57 24.923 -05 54 19.77 21.7w 17OG69 F52 C~5zB5 2022 11 02.497771 03 57 15.249 -05 55 15.44 21.9w 17OG69 F51 C~5zB5 2022 11 02.509753 03 57 15.195 -05 55 15.77 21.9w 17OG69 F51 C~5zB5 2022 11 02.521753 03 57 15.133 -05 55 16.04 21.6w 17OG69 F51 C~5zB5 2023 10 15.535953 04 04 49.254 -05 19 41.39 21.9w 17OG69 F52 C~7BT3 2023 10 15.547627 04 04 49.233 -05 19 41.37 21.9w 17OG69 F52 C~7BT3 2023 10 15.571084 04 04 49.128 -05 19 42.49 22.1w 17OG69 F52 C~7BT3 2023 10 19.575470 04 04 33.592 -05 22 02.26 22.1w 17OG69 F51 C~7Mpx 2023 10 19.588639 04 04 33.554 -05 22 02.48 21.9w 17OG69 F51 C~7Mpx 2023 10 19.601053 04 04 33.488 -05 22 03.21 21.9w 17OG69 F51 C~7Mpx 2023 12 08.436250 04 00 25.140 -05 38 32.14 21.7w 17OG69 F52 C~7bOm 2023 12 08.449267 04 00 25.065 -05 38 32.27 21.7w 17OG69 F52 C~7bOm 2023 12 08.462338 04 00 24.996 -05 38 32.10 21.6w 17OG69 F52 C~7bOm 2023 12 08.475325 04 00 24.930 -05 38 32.40 21.8w 17OG69 F52 C~7bOm 2023 12 31.275450 03 58 38.705 -05 35 51.33 21.8w 17OG69 F51 C~7dLG 2023 12 31.287458 03 58 38.663 -05 35 51.27 21.9w 17OG69 F51 C~7dLG 2023 12 31.299440 03 58 38.612 -05 35 50.95 22.0w 17OG69 F51 C~7dLG
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 -0.10 0.00 -0.05
2 0.0000 0.00 -0.09 0.00 -0.06
3 0.0874 0.00 0.32 0.00 0.20
4 0.0875 0.00 0.24 0.00 0.13
5 0.0875 0.00 0.16 0.00 0.27
6 0.0980 0.00 -0.18 0.00 -0.27
7 0.0980 0.00 -0.07 0.00 -0.15
8 0.0981 0.00 -0.19 0.00 -0.23
9 7.3443 0.00 -0.07 0.00 0.02
10 7.3443 0.00 0.05 0.00 -0.04
11 8.9088 0.00 -0.49 0.00 0.09
12 8.9117 0.00 -0.50 0.00 0.04
13 9.0641 0.00 -0.16 0.00 -0.06
14 9.0669 0.00 0.24 0.00 -0.23
15 9.2362 0.00 0.21 0.00 -0.01
16 9.2364 0.00 0.19 0.00 -0.09
17 9.2908 0.00 0.10 0.00 -0.12
18 9.2935 0.00 0.09 0.00 -0.10
19 10.1974 0.00 0.06 0.00 -0.04
20 10.1975 0.00 0.26 0.00 -0.04
21 10.2626 0.00 -0.18 0.00 0.60
22 10.2627 0.00 -0.12 0.00 0.55
23 12.0464 0.00 0.03 0.00 0.17
24 12.0465 0.00 0.10 0.00 0.03
25 12.0465 0.00 0.14 0.00 0.10
26 12.0465 0.00 0.16 0.00 -0.06
27 12.1122 0.00 0.14 0.00 0.05
28 12.1122 0.00 0.15 0.00 -0.15
29 12.1123 0.00 -0.01 0.00 0.11
30 12.1123 0.00 -0.15 0.00 0.13
31 12.2840 0.00 -0.05 0.00 0.17
32 12.2840 0.00 0.04 0.00 -0.02
33 12.2841 0.00 -0.03 0.00 -0.08
34 12.3606 0.00 0.02 0.00 0.03
35 12.3607 0.00 -0.06 0.00 -0.04
36 12.3607 0.00 -0.03 0.00 -0.17
37 12.3711 0.00 0.01 0.00 -0.13
38 12.3712 0.00 0.01 0.00 0.02
39 12.3714 0.00 -0.03 0.00 -0.32
40 13.2479 0.00 -0.02 0.00 0.07
41 13.2479 0.00 0.27 0.00 0.15
42 13.2480 0.00 0.10 0.00 0.03
43 14.1735 0.00 -0.25 0.00 0.07
44 14.1735 0.00 -0.02 0.00 -0.03
45 14.1735 0.00 0.12 0.00 -0.09
46 14.1790 0.00 -0.10 0.00 -0.03
47 14.1790 0.00 -0.02 0.00 -0.03
48 14.1791 0.00 -0.06 0.00 0.02
49 15.1291 0.00 -0.11 0.00 -0.17
50 15.1292 0.00 0.25 0.00 0.26
51 15.1292 0.00 0.02 0.00 -0.02
52 15.1402 0.00 -0.00 0.00 -0.18
53 15.1402 0.00 0.24 0.00 0.05
54 15.1403 0.00 0.01 0.00 -0.26
55 15.2767 0.00 0.02 0.00 0.02
56 15.2767 0.00 -0.09 0.00 -0.08
57 15.2768 0.00 -0.10 0.00 0.11
58 15.2768 0.00 -0.07 0.00 -0.16
59 15.3392 0.00 -0.19 0.00 0.01
60 15.3393 0.00 -0.08 0.00 -0.12
61 15.3393 0.00 -0.11 0.00 0.01
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.
17OG69 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 40.449 40.449 40.449 ecceobj 0.080 0.080 0.080 incobj 25.226 25.226 25.226 qmin 36.569 36.536 36.481 qmax 43.893 43.957 43.983 amean 40.128 40.128 40.130 amin 39.806 39.799 39.782 amax 40.461 40.461 40.461 emean 0.072 0.073 0.073 emin 0.059 0.059 0.061 emax 0.085 0.087 0.088 imean 24.043 24.033 24.036 imin 23.579 23.554 23.560 imax 24.586 24.587 24.586 excite_mean 0.414 0.414 0.414 fracstop 1.000 1.000 1.000 cjmean 2.855 2.855 2.855 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 181.7 180.7 181.3 kozaiamp 179.9 180.0 179.9