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: 13GL137
# Created Sun Dec 22 02:09:26 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 43 observations of 43
# Arc: 6.09y
# First observation: 2013/04/04
# Last observation: 2019/05/07
# Chi-squared of fit: 30.96 DOF: 80 RMS: 0.15
# Min/Max residuals: -0.38 0.58
# Exact a, adot, b, bdot, g, gdot:
1.783984E-05 3.310464E-02 -3.392301E-06 -6.062458E-03 2.990023E-02 -4.956070E-03
# Covariance matrix:
8.3876E-14 -6.4259E-14 -3.9150E-15 1.0332E-14 4.0673E-14 -2.7467E-13
-6.4259E-14 1.6317E-13 1.1378E-14 -2.9460E-14 2.7796E-14 7.8343E-13
-3.9150E-15 1.1378E-14 4.8428E-14 -1.5445E-14 2.0295E-15 5.9598E-14
1.0332E-14 -2.9460E-14 -1.5445E-14 1.9373E-14 -4.7347E-15 -1.5438E-13
4.0673E-14 2.7796E-14 2.0295E-15 -4.7347E-15 1.3836E-13 1.2617E-13
-2.7467E-13 7.8343E-13 5.9598E-14 -1.5438E-13 1.2617E-13 4.1055E-12
# lat0 lon0 xBary yBary zBary JD0
1.064998 -140.445696 0.418059 0.016939 -0.910058 2456387.063488
# Heliocentric elements and errors
Epoch: 2456386.5000 = 2013/04/04
Mean Anomaly: 317.29543 +/- 0.010
Argument of Peri: 235.40413 +/- 0.017
Long of Asc Node: 44.48421 +/- 0.000
Inclination: 10.45264 +/- 0.000
Eccentricity: 0.19785593 +/- 0.0001
Semi-Major Axis: 39.17063587 +/- 0.0023
Time of Perihelion: 2467008.6193 +/- 7.4
Perihelion: 31.42049340 +/- 0.0028
Aphelion: 46.92077834 +/- 0.0034
Period (y) 245.1597 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -26.74895342 +/- 0.0003
Ecliptic Y -21.54935165 +/- 0.0003
Ecliptic Z 0.62154221 +/- 0.0000
Ecliptic XDOT 0.00226592 +/- 0.0000
Ecliptic YDOT -0.00205440 +/- 0.0000
Ecliptic ZDOT -0.00056331 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 34.35511318 +/- 0.0003
Geocenter to KBO 33.44467205 +/- 0.0004
# Hcoef: 8.51
The following table shows the complete astrometric record for 13GL137. 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 (13GL137) followed by the observatory code and reference code for the source of the astrometry.
2013 04 04.56271 14 30 00.339 -13 39 46.97 23.9r 13GL137 568 C~1XRX 2013 04 07.42293 14 29 45.671 -13 38 43.75 23.5r 13GL137 568 C~1XRX 2013 04 07.50053 14 29 45.273 -13 38 42.05 23.5r 13GL137 568 C~1XRX 2013 04 08.45527 14 29 40.288 -13 38 20.38 13GL137 568 C~1XRX 2013 04 08.50045 14 29 40.043 -13 38 19.50 23.4r 13GL137 568 C~1XRX 2013 04 08.50934 14 29 39.974 -13 38 18.64 23.8r 13GL137 568 C~1XRX 2013 04 08.54607 14 29 39.791 -13 38 18.07 23.2r 13GL137 568 C~1XRX 2013 04 09.40177 14 29 35.283 -13 37 58.75 23.6r 13GL137 568 C~1XRX 2013 04 09.44495 14 29 35.067 -13 37 57.88 23.9r 13GL137 568 C~1XRX 2013 04 09.48873 14 29 34.832 -13 37 56.93 24.6r 13GL137 568 C~1XRX 2013 04 09.49693 14 29 34.792 -13 37 56.68 23.0r 13GL137 568 C~1XRX 2013 04 09.50177 14 29 34.752 -13 37 56.55 13GL137 568 C~1XRX 2013 04 09.50867 14 29 34.718 -13 37 56.36 23.6r 13GL137 568 C~1XRX 2013 04 09.53112 14 29 34.598 -13 37 56.00 23.9r 13GL137 568 C~1XRX 2013 04 10.50021 14 29 29.443 -13 37 33.81 23.7r 13GL137 568 C~1XRX 2013 04 10.54048 14 29 29.238 -13 37 32.86 23.8r 13GL137 568 C~1XRX 2013 05 11.49012 14 26 35.023 -13 25 09.17 23.9r 13GL137 568 C~1XRX 2013 05 12.49343 14 26 29.427 -13 24 45.72 23.8r 13GL137 568 C~1XRX 2013 06 12.38761 14 24 00.104 -13 14 47.17 24.0r 13GL137 568 C~1XRX 2013 06 12.43333 14 23 59.919 -13 14 46.79 24.3r 13GL137 568 C~1XRX 2013 07 06.27023 14 22 54.173 -13 11 20.78 24.3r 13GL137 568 C~1XRX 2013 07 07.29688 14 22 52.618 -13 11 18.51 13GL137 568 C~1XRX 2013 08 02.28256 14 22 50.794 -13 13 26.59 24.0r 13GL137 568 C~1XRY 2013 08 05.28429 14 22 55.391 -13 14 05.11 23.9r 13GL137 568 C~1XRY 2014 02 24.61674 14 39 16.772 -14 44 13.34 23.9r 13GL137 568 C~1XRY 2014 02 25.59980 14 39 15.195 -14 44 08.42 23.7r 13GL137 568 C~1XRY 2014 02 28.54777 14 39 09.852 -14 43 50.14 24.0r 13GL137 568 C~1XRY 2014 04 04.45085 14 37 03.034 -14 35 28.29 13GL137 568 C~1XRY 2014 04 04.49069 14 37 02.817 -14 35 27.46 23.7r 13GL137 568 C~1XRY 2014 04 05.57974 14 36 57.347 -14 35 04.83 23.6r 13GL137 568 C~1XRY 2014 04 30.13625 14 34 41.73 -14 25 45.5 24.0V 13GL137 W84 C~2fc7 2014 04 30.20523 14 34 41.32 -14 25 43.9 13GL137 W84 C~2fc7 2014 05 01.12293 14 34 36.04 -14 25 21.9 13GL137 W84 C~2fc7 2014 05 01.19265 14 34 35.61 -14 25 20.3 13GL137 W84 C~2fc7 2014 05 22.42509 14 32 35.996 -14 17 12.44 24.0r 13GL137 568 C~1XRY 2014 05 25.35772 14 32 20.543 -14 16 10.61 23.6r 13GL137 568 C~1XRY 2014 06 26.34615 14 30 08.430 -14 07 55.82 24.0r 13GL137 568 C~1XRY 2014 07 18.30910 14 29 31.324 -14 06 38.56 23.8r 13GL137 568 C~1XRY 2015 04 20.42535 14 42 48.367 -15 25 20.16 23.7r 13GL137 568 C~2KOF 2015 04 20.46573 14 42 48.156 -15 25 19.56 23.8r 13GL137 568 C~2KOF 2019 05 06.321170 15 11 22.26 -18 59 01.8 23.3G 13GL137 705 C~39oa 2019 05 06.349500 15 11 22.08 -18 59 01.2 23.5G 13GL137 705 C~39oa 2019 05 07.321740 15 11 16.19 -18 58 42.3 23.6G 13GL137 705 C~39oa
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 -0.05 0.00 0.06
2 0.0078 0.00 -0.09 0.00 -0.04
3 0.0080 0.00 0.12 0.00 -0.08
4 0.0107 0.00 0.16 0.00 0.06
5 0.0108 0.00 0.12 0.00 -0.08
6 0.0108 0.00 -0.20 0.00 0.58
7 0.0109 0.00 0.00 0.00 0.31
8 0.0132 0.00 -0.14 0.00 0.16
9 0.0134 0.00 0.11 0.00 0.05
10 0.0135 0.00 0.13 0.00 0.01
11 0.0135 0.00 0.20 0.00 0.07
12 0.0135 0.00 -0.01 0.00 0.09
13 0.0135 0.00 0.04 0.00 0.12
14 0.0136 0.00 0.06 0.00 -0.04
15 0.0163 0.00 0.01 0.00 -0.07
16 0.0164 0.00 0.22 0.00 -0.05
17 0.1011 0.00 0.02 0.00 -0.15
18 0.1038 0.00 -0.12 0.00 -0.11
19 0.1884 0.00 -0.14 0.00 -0.03
20 0.1886 0.00 -0.23 0.00 -0.30
21 0.2538 0.00 -0.12 0.00 0.05
22 0.2566 0.00 0.28 0.00 -0.16
23 0.3278 0.00 -0.11 0.00 0.01
24 0.3360 0.00 -0.09 0.00 0.15
25 0.8927 0.00 0.13 0.00 -0.08
26 0.8954 0.00 -0.09 0.00 -0.22
27 0.9034 0.00 -0.21 0.00 -0.04
28 0.9990 0.00 0.07 0.00 0.00
29 0.9991 0.00 -0.14 0.00 0.02
30 1.0021 0.00 0.04 0.00 0.19
31 1.0693 0.00 0.06 0.00 -0.10
32 1.0695 0.00 -0.00 0.00 -0.14
33 1.0720 0.00 0.32 0.00 -0.03
34 1.0722 0.00 0.03 0.00 -0.08
35 1.1304 0.00 0.16 0.00 -0.08
36 1.1384 0.00 -0.10 0.00 -0.09
37 1.2260 0.00 -0.05 0.00 -0.17
38 1.2861 0.00 0.05 0.00 -0.12
39 2.0421 0.00 -0.38 0.00 0.23
40 2.0422 0.00 -0.06 0.00 -0.07
41 6.0856 0.00 0.01 0.00 0.16
42 6.0857 0.00 -0.06 0.00 0.20
43 6.0883 0.00 0.13 0.00 -0.23
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.
13GL137 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.041 39.041 39.041 ecceobj 0.198 0.198 0.198 incobj 10.467 10.467 10.467 qmin 28.737 28.728 28.709 qmax 50.796 50.787 50.760 amean 39.456 39.455 39.456 amin 38.989 38.990 38.974 amax 40.019 40.029 40.023 emean 0.235 0.235 0.235 emin 0.194 0.194 0.194 emax 0.271 0.271 0.270 imean 7.198 7.196 7.194 imin 4.654 4.637 4.641 imax 9.855 9.855 9.855 excite_mean 0.269 0.269 0.269 fracstop 1.000 1.000 1.000 cjmean 2.969 2.969 2.969 libcent 0 179.8 179.9 180.1 libamp 0 94.0 94.7 93.4 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 91.4 91.2 91.4 kozaiamp 109.9 110.1 109.9