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: 13SR100 # Created Fri Nov 22 02:09:36 2024 # Orbit generated from Bernstein formalism # Fitting 40 observations of 40 # Arc: 4.07y # First observation: 2013/08/05 # Last observation: 2017/08/30 Preliminary a, adot, b, bdot, g, gdot: -0.000078 0.013812 -0.000018 0.006163 0.019061 0.000000 # Chi-squared of fit: 18.51 DOF: 74 RMS: 0.12 # Min/Max residuals: -0.39 0.35 # Exact a, adot, b, bdot, g, gdot: 1.113692E-05 1.371807E-02 5.165633E-06 6.122451E-03 1.905059E-02 -9.534096E-04 # Covariance matrix: 9.9071E-14 -7.4487E-15 -1.5896E-15 6.9827E-15 6.5966E-14 3.1786E-13 -7.4487E-15 1.0365E-13 -1.2659E-14 4.4087E-14 8.6404E-14 1.9658E-12 -1.5896E-15 -1.2659E-14 6.4957E-14 -3.0152E-14 -1.1912E-14 -3.0116E-13 6.9827E-15 4.4087E-14 -3.0152E-14 4.4073E-14 4.3650E-14 1.0462E-12 6.5966E-14 8.6404E-14 -1.1912E-14 4.3650E-14 1.6376E-13 1.9561E-12 3.1786E-13 1.9658E-12 -3.0116E-13 1.0462E-12 1.9561E-12 4.6639E-11 # lat0 lon0 xBary yBary zBary JD0 -2.704545 12.543055 0.876652 -0.024234 -0.513592 2456509.986158 # Heliocentric elements and errors Epoch: 2456500.5000 = 2013/07/27 Mean Anomaly: 210.96787 +/- 0.113 Argument of Peri: 151.30255 +/- 0.111 Long of Asc Node: 17.57988 +/- 0.000 Inclination: 24.16782 +/- 0.001 Eccentricity: 0.17975134 +/- 0.0002 Semi-Major Axis: 45.66224959 +/- 0.0035 Time of Perihelion: 2503156.9610 +/- 34.9 Perihelion: 37.45439919 +/- 0.0077 Aphelion: 53.87009999 +/- 0.0082 Period (y) 308.5632 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 51.87401542 +/- 0.0011 Ecliptic Y 10.64613045 +/- 0.0002 Ecliptic Z -2.47654617 +/- 0.0001 Ecliptic XDOT -0.00052745 +/- 0.0000 Ecliptic YDOT 0.00190288 +/- 0.0000 Ecliptic ZDOT 0.00088551 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 53.01308187 +/- 0.0011 Geocenter to KBO 52.49181477 +/- 0.0011 # Hcoef: 7.09
The following table shows the complete astrometric record for 13SR100. 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 (13SR100) followed by the observatory code and reference code for the source of the astrometry.
2013 08 05.48538 00 50 22.004 +02 27 51.77 24.5r 13SR100 568 C~2NKM 2013 08 05.53383 00 50 21.920 +02 27 51.04 24.0r 13SR100 568 C~2NKM 2013 08 08.46429 00 50 16.815 +02 27 21.50 24.5r 13SR100 568 C~2NKM 2013 08 08.50311 00 50 16.713 +02 27 21.21 13SR100 568 C~2NKM 2013 08 31.54913 00 49 19.948 +02 21 53.35 24.0r 13SR100 568 C~2NKM 2013 08 31.59296 00 49 19.807 +02 21 52.62 13SR100 568 C~2NKM 2013 08 31.59772 00 49 19.793 +02 21 52.74 13SR100 568 C~2NKM 2013 08 31.61256 00 49 19.768 +02 21 52.42 24.0r 13SR100 568 C~2NKM 2013 09 01.43491 00 49 17.249 +02 21 38.06 24.5r 13SR100 568 C~2NKM 2013 09 01.47388 00 49 17.126 +02 21 37.37 24.1r 13SR100 568 C~2NKM 2013 09 05.41441 00 49 04.752 +02 20 27.03 24.4r 13SR100 568 C~2NKM 2013 09 05.45322 00 49 04.598 +02 20 26.23 24.2r 13SR100 568 C~2NKM 2013 09 29.34540 00 47 39.740 +02 12 35.69 24.5r 13SR100 568 C~2NKM 2013 09 29.38422 00 47 39.587 +02 12 34.79 24.5r 13SR100 568 C~2NKM 2013 09 29.42805 00 47 39.430 +02 12 33.92 24.2r 13SR100 568 C~2NKM 2013 10 02.41909 00 47 28.106 +02 11 32.86 23.9r 13SR100 568 C~2NKM 2013 10 04.51065 00 47 20.139 +02 10 50.25 24.2r 13SR100 568 C~2NKM 2013 10 09.47694 00 47 01.254 +02 09 10.36 24.4r 13SR100 568 C~2NKM 2013 11 27.27126 00 44 25.762 +01 57 06.73 24.6r 13SR100 568 C~2NKM 2013 11 27.31577 00 44 25.659 +01 57 06.33 24.1r 13SR100 568 C~2NKM 2013 12 05.23284 00 44 10.811 +01 56 24.45 24.5r 13SR100 568 C~2NKM 2014 06 25.58497 00 52 53.799 +03 06 04.99 24.7r 13SR100 568 C~2NKM 2014 06 26.58383 00 52 54.917 +03 06 12.84 24.6r 13SR100 568 C~2NKM 2014 07 23.57151 00 52 59.102 +03 07 01.27 24.1r 13SR100 568 C~2NKM 2014 07 27.55192 00 52 55.517 +03 06 42.51 24.9r 13SR100 568 C~2NKM 2014 11 24.29111 00 46 53.903 +02 35 21.28 24.4r 13SR100 568 C~2NKM 2014 11 25.31746 00 46 51.501 +02 35 12.38 24.2r 13SR100 568 C~2NKM 2014 12 17.34321 00 46 16.235 +02 33 47.96 24.5r 13SR100 568 C~2NKM 2015 01 18.23551 00 46 25.586 +02 38 14.87 24.5r 13SR100 568 C~2NKM 2015 08 20.51481 00 54 35.712 +03 40 44.46 24.3r 13SR100 568 C~2NKM 2015 10 12.27435 00 51 37.361 +03 24 38.54 24.3r 13SR100 568 C~2NKM 2015 10 12.35600 00 51 37.040 +03 24 36.91 23.5r 13SR100 568 C~2NKM 2015 12 07.39898 00 48 49.304 +03 11 46.56 24.6w 13SR100 568 C~2NKM 2015 12 31.22795 00 48 30.784 +03 12 13.98 24.4w 13SR100 568 C~2NKM 2016 11 04.31217 00 52 33.681 +03 55 32.15 24.3w 13SR100 568 C~2NKM 2016 11 04.37124 00 52 33.484 +03 55 31.24 24.4w 13SR100 568 C~2NKM 2017 07 17.62072 01 00 06.078 +05 00 05.07 13SR100 568 C~2NKM 2017 07 23.60916 01 00 03.381 +05 00 01.31 13SR100 568 C~2NKM 2017 08 30.47857 00 58 53.593 +04 54 20.37 24.3w 13SR100 568 C~2NKM 2017 08 30.53116 00 58 53.441 +04 54 19.41 24.1w 13SR100 568 C~2NKM
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 -0.02
2 0.0001 -1.44 -0.07 -0.18 -0.25
3 0.0082 -83.41 0.08 2.33 -0.08
4 0.0083 -84.94 -0.27 2.66 0.20
5 0.0714 -996.21 0.06 31.29 -0.18
6 0.0715 -998.44 -0.00 31.44 -0.13
7 0.0715 -998.58 0.08 31.64 0.06
8 0.0715 -999.05 0.35 31.49 -0.12
9 0.0738 -1039.42 -0.05 32.94 -0.04
10 0.0739 -1041.39 -0.07 33.02 -0.05
11 0.0847 -1239.60 0.01 40.33 -0.04
12 0.0848 -1242.04 -0.39 40.49 0.03
13 0.1502 -2596.90 -0.04 101.73 0.17
14 0.1503 -2599.36 -0.14 101.79 0.10
15 0.1504 -2601.87 0.03 101.91 0.06
16 0.1586 -2782.01 0.08 111.70 0.05
17 0.1643 -2908.62 -0.08 118.92 0.09
18 0.1779 -3208.32 0.06 137.07 0.31
19 0.3115 -5638.16 0.11 378.23 0.02
20 0.3117 -5639.74 -0.00 378.47 -0.03
21 0.3333 -5861.24 0.11 426.64 0.14
22 0.8873 2986.62 -0.04 1229.95 -0.10
23 0.8901 3005.10 0.17 1230.69 -0.10
24 0.9640 3081.69 0.28 1251.00 -0.14
25 0.9749 3024.91 -0.06 1254.55 -0.13
26 1.3027 -2698.30 -0.01 1627.17 -0.01
27 1.3055 -2734.93 -0.22 1632.98 0.09
28 1.3658 -3254.69 -0.10 1761.01 0.19
29 1.4531 -3021.66 0.13 1952.32 -0.03
30 2.0398 5200.95 -0.09 2555.14 -0.02
31 2.1842 2364.01 0.06 2700.82 -0.08
32 2.1845 2358.95 -0.01 2701.19 -0.05
33 2.3379 -255.17 -0.04 2967.66 0.05
34 2.4031 -500.06 0.04 3100.84 -0.00
35 3.2494 3861.36 -0.02 4082.40 -0.02
36 3.2495 3858.29 0.05 4082.70 0.00
37 3.9484 11612.57 0.09 5038.41 0.03
38 3.9647 11573.82 -0.11 5050.50 -0.01
39 4.0684 10476.75 0.00 5138.33 0.11
40 4.0686 10474.28 -0.01 5138.32 -0.06
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.
13SR100 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.852 45.862 45.842 ecceobj 0.174 0.174 0.174 incobj 24.088 24.088 24.088 qmin 36.377 36.319 36.388 qmax 55.349 55.349 55.340 amean 45.645 45.652 45.647 amin 45.264 45.244 45.249 amax 46.114 46.112 46.103 emean 0.185 0.185 0.185 emin 0.169 0.170 0.170 emax 0.201 0.201 0.201 imean 23.924 23.917 23.921 imin 23.460 23.454 23.461 imax 24.348 24.351 24.350 excite_mean 0.446 0.446 0.446 fracstop 1.000 1.000 1.000 cjmean 2.871 2.871 2.871 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 182.9 182.9 183.1 kozaiamp 180.0 180.0 180.0