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: 15DB249 # Created Fri Apr 26 01:17:03 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 56 observations of 56 # Arc: 14.19y # First observation: 2006/11/28 # Last observation: 2021/02/04 # Chi-squared of fit: 64.82 DOF: 106 RMS: 0.19 # Min/Max residuals: -0.60 0.50 # Exact a, adot, b, bdot, g, gdot: 1.745008E-05 2.991000E-02 2.903072E-06 5.233471E-03 2.713445E-02 -2.278491E-04 # Covariance matrix: 2.0309E-13 -3.8952E-14 9.1868E-15 -4.2104E-15 -5.4147E-15 -6.0473E-14 -3.8952E-14 2.5127E-14 -4.2572E-15 4.0047E-15 4.9452E-14 5.3007E-14 9.1868E-15 -4.2572E-15 1.5097E-13 -1.5504E-14 -1.3731E-15 -1.0591E-14 -4.2104E-15 4.0047E-15 -1.5504E-14 2.4223E-15 8.3564E-15 9.0890E-15 -5.4147E-15 4.9452E-14 -1.3731E-15 8.3564E-15 1.7745E-13 1.0305E-13 -6.0473E-14 5.3007E-14 -1.0591E-14 9.0890E-15 1.0305E-13 1.2124E-13 # lat0 lon0 xBary yBary zBary JD0 -21.793611 136.332559 0.933246 -0.123906 -0.310218 2454068.046298 # Heliocentric elements and errors Epoch: 2454068.5000 = 2006/11/29 Mean Anomaly: 351.42607 +/- 0.002 Argument of Peri: 304.81145 +/- 0.003 Long of Asc Node: 200.76059 +/- 0.000 Inclination: 23.43266 +/- 0.000 Eccentricity: 0.18159428 +/- 0.0000 Semi-Major Axis: 45.25618977 +/- 0.0032 Time of Perihelion: 2456716.9573 +/- 11.7 Perihelion: 37.03792480 +/- 0.0034 Aphelion: 53.47445474 +/- 0.0044 Period (y) 304.4565 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -24.35326001 +/- 0.0004 Ecliptic Y 24.52889231 +/- 0.0004 Ecliptic Z -13.68231060 +/- 0.0002 Ecliptic XDOT -0.00220498 +/- 0.0000 Ecliptic YDOT -0.00206659 +/- 0.0000 Ecliptic ZDOT 0.00049878 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.17465634 +/- 0.0004 Geocenter to KBO 36.85354368 +/- 0.0006 # Hcoef: 7.29
The following table shows the complete astrometric record for 15DB249. 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 (15DB249) followed by the observatory code and reference code for the source of the astrometry.
2006 11 28.545544 08 49 32.86 -04 54 38.9 23.4g 15DB249 568 C~5i3V 2006 12 14.493305 08 48 53.85 -04 59 47.2 23.3g 15DB249 568 C~5i3V 2006 12 14.518802 08 48 53.77 -04 59 47.6 23.3g 15DB249 568 C~5i3V 2007 11 11.627898 08 56 39.55 -04 58 23.5 22.8r 15DB249 568 C~5i3V 2007 11 14.627859 08 56 39.92 -05 00 05.8 15DB249 568 C~5i3V 2007 11 14.630584 08 56 39.93 -05 00 05.8 15DB249 568 C~5i3V 2007 11 15.530429 08 56 39.88 -05 00 35.7 23.0r 15DB249 568 C~5i3V 2008 02 13.500249 08 51 11.22 -05 02 45.1 22.9r 15DB249 568 C~5i3V 2008 02 13.506621 08 51 11.19 -05 02 45.0 15DB249 568 C~5i3V 2015 02 17.13263 09 40 34.04 -06 22 21.9 23.7g 15DB249 W84 C~2iOV 2015 02 17.13313 09 40 34.02 -06 22 21.5 24.0g 15DB249 W84 C~5hWr 2015 02 17.21859 09 40 33.57 -06 22 18.9 15DB249 W84 C~5hWr 2015 02 17.28734 09 40 33.22 -06 22 16.5 15DB249 W84 C~5hWs 2015 02 17.33384 09 40 32.99 -06 22 15.6 23.4g 15DB249 W84 C~2iOV 2015 02 17.33433 09 40 32.97 -06 22 15.2 15DB249 W84 C~5hWs 2015 02 18.06150 09 40 29.30 -06 21 52.6 23.5g 15DB249 W84 C~2iOV 2015 02 18.12919 09 40 28.94 -06 21 50.3 23.4g 15DB249 W84 C~2iOV 2015 02 18.19692 09 40 28.59 -06 21 48.3 23.5g 15DB249 W84 C~2iOV 2015 02 18.26705 09 40 28.23 -06 21 45.9 23.5g 15DB249 W84 C~2iOV 2015 02 18.33603 09 40 27.87 -06 21 44.0 23.7g 15DB249 W84 C~2iOV 2015 02 19.05868 09 40 24.19 -06 21 20.1 24.0g 15DB249 W84 C~2y2b 2015 02 19.12630 09 40 23.85 -06 21 17.9 15DB249 W84 C~2y2b 2015 02 19.19518 09 40 23.49 -06 21 16.3 23.7g 15DB249 W84 C~2iOV 2015 02 19.19568 09 40 23.49 -06 21 15.8 15DB249 W84 C~2y2b 2015 02 22.11829 09 40 08.71 -06 19 39.0 15DB249 W84 C~2iOV 2015 02 22.18616 09 40 08.35 -06 19 37.0 15DB249 W84 C~2iOV 2015 02 22.25490 09 40 08.02 -06 19 35.0 15DB249 W84 C~2iOV 2015 02 22.32354 09 40 07.66 -06 19 32.0 15DB249 W84 C~2iOV 2015 02 24.10307 09 39 58.75 -06 18 31.0 15DB249 W84 C~2iOV 2015 02 24.16428 09 39 58.44 -06 18 29.0 15DB249 W84 C~2iOV 2015 03 08.223889 09 39 00.55 -06 10 57.5 22.8r 15DB249 W84 C~444E 2015 03 08.278784 09 39 00.29 -06 10 55.6 22.6i 15DB249 W84 C~444E 2015 03 14.028542 09 38 34.93 -06 07 02.5 22.9i 15DB249 W84 C~444E 2015 03 14.112442 09 38 34.57 -06 06 59.3 22.7r 15DB249 W84 C~444E 2015 03 14.162442 09 38 34.34 -06 06 57.3 23.5g 15DB249 W84 C~444E 2017 03 03.097473 09 53 38.47 -06 34 47.6 23.3r 15DB249 W84 C~5i3V 2017 03 03.104597 09 53 38.43 -06 34 47.2 23.1g 15DB249 W84 C~5i3V 2017 03 03.105687 09 53 38.43 -06 34 47.1 22.8r 15DB249 W84 C~5i3V 2017 03 03.111214 09 53 38.39 -06 34 46.9 23.2g 15DB249 W84 C~5i3V 2017 03 17.124685 09 52 34.36 -06 25 27.9 22.7z 15DB249 W84 C~5i3V 2017 03 17.129721 09 52 34.33 -06 25 27.7 22.6z 15DB249 W84 C~5i3V 2018 02 09.327259 10 02 37.11 -06 56 24.7 22.6z 15DB249 W84 C~5i3V 2018 05 05.018961 09 57 39.82 -06 02 07.0 23.5g 15DB249 W84 C~5i3V 2018 05 05.020870 09 57 39.83 -06 02 06.9 23.6g 15DB249 W84 C~5i3V 2018 05 05.082035 09 57 39.82 -06 02 04.7 22.6r 15DB249 W84 C~5i3V 2018 05 05.083517 09 57 39.81 -06 02 04.8 23.2r 15DB249 W84 C~5i3V 2018 12 13.251667 10 13 00.41 -07 09 10.6 23.5g 15DB249 W84 C~5i3V 2018 12 13.253638 10 13 00.40 -07 09 10.6 22.9r 15DB249 W84 C~5i3V 2019 01 02.266626 10 12 21.77 -07 12 58.2 23.7g 15DB249 W84 C~5i3V 2019 01 11.643143 10 11 51.51 -07 12 57.5 23.1V 15DB249 568 C~5i3V 2019 01 11.644090 10 11 51.50 -07 12 57.3 15DB249 568 C~5i3V 2019 01 11.645036 10 11 51.50 -07 12 57.7 15DB249 568 C~5i3V 2019 02 16.137516 10 09 11.15 -07 02 46.0 22.5i 15DB249 W84 C~5i3V 2021 02 03.197012 10 24 23.33 -07 25 19.5 22.6i 15DB249 W84 C~5i3V 2021 02 04.186033 10 24 18.71 -07 24 58.7 22.5i 15DB249 W84 C~5i3V 2021 02 04.187410 10 24 18.71 -07 24 58.8 22.5i 15DB249 W84 C~5i3V
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 0.00 0.00 0.03
2 0.0437 0.00 0.01 0.00 0.10
3 0.0437 0.00 0.06 0.00 0.04
4 0.9530 0.00 -0.11 0.00 -0.04
5 0.9612 0.00 -0.26 0.00 0.04
6 0.9612 0.00 -0.11 0.00 0.14
7 0.9637 0.00 0.13 0.00 0.06
8 1.2100 0.00 0.16 0.00 0.14
9 1.2100 0.00 0.20 0.00 0.04
10 8.2206 0.00 0.20 0.00 -0.29
11 8.2206 0.00 -0.06 0.00 0.10
12 8.2209 0.00 -0.15 0.00 0.02
13 8.2211 0.00 -0.04 0.00 0.26
14 8.2212 0.00 0.12 0.00 -0.30
15 8.2212 0.00 -0.14 0.00 0.09
16 8.2232 0.00 0.20 0.00 -0.28
17 8.2234 0.00 0.05 0.00 -0.12
18 8.2235 0.00 0.07 0.00 -0.28
19 8.2237 0.00 0.13 0.00 -0.11
20 8.2239 0.00 0.08 0.00 -0.42
21 8.2259 0.00 -0.21 0.00 0.26
22 8.2261 0.00 -0.07 0.00 0.28
23 8.2263 0.00 -0.13 0.00 -0.34
24 8.2263 0.00 -0.09 0.00 0.14
25 8.2343 0.00 0.17 0.00 0.04
26 8.2345 0.00 -0.01 0.00 -0.26
27 8.2347 0.00 0.32 0.00 -0.60
28 8.2348 0.00 0.17 0.00 0.07
29 8.2397 0.00 0.11 0.00 -0.20
30 8.2399 0.00 0.12 0.00 -0.33
31 8.2729 0.00 -0.15 0.00 0.15
32 8.2731 0.00 -0.24 0.00 -0.13
33 8.2888 0.00 -0.14 0.00 0.48
34 8.2890 0.00 -0.08 0.00 0.23
35 8.2892 0.00 -0.27 0.00 0.16
36 10.2602 0.00 -0.10 0.00 -0.09
37 10.2603 0.00 -0.17 0.00 0.04
38 10.2603 0.00 -0.09 0.00 0.10
39 10.2603 0.00 -0.28 0.00 0.09
40 10.2986 0.00 -0.02 0.00 0.03
41 10.2987 0.00 -0.15 0.00 0.02
42 11.2000 0.00 -0.08 0.00 0.02
43 11.4318 0.00 -0.14 0.00 -0.08
44 11.4318 0.00 0.02 0.00 -0.05
45 11.4320 0.00 0.21 0.00 -0.01
46 11.4320 0.00 0.07 0.00 -0.16
47 12.0403 0.00 -0.10 0.00 0.25
48 12.0403 0.00 -0.22 0.00 0.29
49 12.0951 0.00 -0.10 0.00 0.07
50 12.1207 0.00 0.50 0.00 0.15
51 12.1207 0.00 0.40 0.00 0.35
52 12.1207 0.00 0.45 0.00 -0.05
53 12.2179 0.00 -0.11 0.00 -0.07
54 14.1839 0.00 -0.10 0.00 -0.02
55 14.1866 0.00 -0.12 0.00 0.14
56 14.1866 0.00 -0.02 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.
15DB249 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.309 45.309 45.309 ecceobj 0.181 0.181 0.181 incobj 23.460 23.460 23.460 qmin 36.379 36.382 36.372 qmax 54.575 54.565 54.513 amean 45.272 45.272 45.272 amin 44.901 44.900 44.898 amax 45.717 45.715 45.714 emean 0.177 0.177 0.177 emin 0.162 0.162 0.162 emax 0.194 0.194 0.193 imean 23.839 23.839 23.839 imin 23.407 23.409 23.409 imax 24.265 24.266 24.268 excite_mean 0.441 0.441 0.441 fracstop 1.000 1.000 1.000 cjmean 2.873 2.873 2.873 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 177.0 177.0 176.9 kozaiamp 180.0 180.0 180.0