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: 13TE172 # Created Wed Dec 25 02:09:37 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 50 observations of 50 # Arc: 9.15y # First observation: 2013/10/04 # Last observation: 2022/11/28 # Chi-squared of fit: 29.48 DOF: 94 RMS: 0.14 # Min/Max residuals: -0.30 0.36 # Exact a, adot, b, bdot, g, gdot: 1.696279E-05 3.033752E-02 8.715179E-06 1.523995E-02 2.875653E-02 7.116220E-04 # Covariance matrix: 2.5251E-13 -9.5832E-14 5.7807E-14 -3.7848E-14 4.1616E-14 -2.7319E-13 -9.5832E-14 4.9246E-14 -3.6556E-14 2.2558E-14 -4.9776E-16 1.6055E-13 5.7807E-14 -3.6556E-14 1.4072E-13 -4.4387E-14 -8.6434E-15 -1.4159E-13 -3.7848E-14 2.2558E-14 -4.4387E-14 1.9896E-14 1.3531E-15 8.7128E-14 4.1616E-14 -4.9776E-16 -8.6434E-15 1.3531E-15 7.4519E-14 2.6481E-15 -2.7319E-13 1.6055E-13 -1.4159E-13 8.7128E-14 2.6481E-15 6.1968E-13 # lat0 lon0 xBary yBary zBary JD0 -14.515951 25.202080 0.247605 -0.242815 -0.938278 2456569.774008 # Heliocentric elements and errors Epoch: 2456570.5000 = 2013/10/05 Mean Anomaly: 2.49540 +/- 0.003 Argument of Peri: 326.18251 +/- 0.006 Long of Asc Node: 50.84840 +/- 0.000 Inclination: 29.81323 +/- 0.000 Eccentricity: 0.26241873 +/- 0.0000 Semi-Major Axis: 48.39218360 +/- 0.0031 Time of Perihelion: 2455718.1885 +/- 1.2 Perihelion: 35.69316800 +/- 0.0030 Aphelion: 61.09119920 +/- 0.0043 Period (y) 336.6441 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 31.44188769 +/- 0.0003 Ecliptic Y 14.52646860 +/- 0.0001 Ecliptic Z -8.71600524 +/- 0.0001 Ecliptic XDOT -0.00084766 +/- 0.0000 Ecliptic YDOT 0.00279486 +/- 0.0000 Ecliptic ZDOT 0.00138780 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.71524322 +/- 0.0003 Geocenter to KBO 34.77473090 +/- 0.0003 # Hcoef: 7.10
The following table shows the complete astrometric record for 13TE172. 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 (13TE172) followed by the observatory code and reference code for the source of the astrometry.
2013 10 04.27323 01 54 28.053 -03 47 02.35 23.5g 13TE172 W84 C~4yR9 2013 10 27.12974 01 52 23.437 -03 55 53.27 23.5g 13TE172 W84 C~4yR9 2013 11 13.12040 01 50 51.968 -03 59 42.66 22.3z 13TE172 W84 C~4yR9 2014 08 18.37542 02 02 31.057 -01 59 53.00 22.0z 13TE172 W84 C~4yR9 2014 10 02.34232 01 59 52.729 -02 19 39.17 23.3g 13TE172 W84 C~4yR9 2014 12 25.09950 01 53 24.87 -02 30 02.6 21.9r 13TE172 W84 C~3clO 2014 12 26.06520 01 53 22.918 -02 29 42.47 22.2z 13TE172 W84 C~4yR9 2014 12 26.06658 01 53 22.906 -02 29 42.65 22.3i 13TE172 W84 C~4yR9 2015 01 16.054294 01 53 04.54 -02 19 53.0 22.4z 13TE172 W84 C~35bZ 2015 01 16.05482 01 53 04.558 -02 19 52.96 22.8z 13TE172 W84 C~4yR9 2015 01 19.049792 01 53 05.80 -02 18 06.1 22.4z 13TE172 W84 C~35bZ 2015 01 19.05031 01 53 05.815 -02 18 06.02 22.7z 13TE172 W84 C~4yR9 2016 01 12.05868 01 58 09.441 -00 58 05.59 22.3r 13TE172 W84 C~4yR9 2016 01 12.059514 01 58 09.46 -00 58 05.7 23.0g 13TE172 W84 C~35bZ 2016 01 12.06004 01 58 09.462 -00 58 05.74 22.7g 13TE172 W84 C~4yR9 2016 09 10.296157 02 11 47.38 +00 41 44.8 22.8r 13TE172 W84 C~35bZ 2016 09 10.29669 02 11 47.381 +00 41 44.80 23.0r 13TE172 W84 C~4yR9 2016 09 10.29806 02 11 47.372 +00 41 44.95 24.0g 13TE172 W84 C~4yR9 2016 09 10.39463 02 11 47.033 +00 41 42.62 22.4z 13TE172 W84 C~4yR9 2016 10 27.16787 02 07 59.608 +00 22 56.84 22.3r 13TE172 W84 C~4yR9 2016 10 27.16927 02 07 59.605 +00 22 56.81 22.2i 13TE172 W84 C~4yR9 2016 10 27.170104 02 07 59.57 +00 22 56.6 23.4g 13TE172 W84 C~35bZ 2016 11 07.17116 02 06 58.635 +00 19 49.11 22.4z 13TE172 W84 C~4yR9 2016 11 11.18165 02 06 36.969 +00 18 54.87 22.5z 13TE172 W84 C~4yR9 2016 11 27.126840 02 05 16.96 +00 16 48.9 22.7r 13TE172 W84 C~35bZ 2016 11 27.12737 02 05 16.964 +00 16 48.85 22.8r 13TE172 W84 C~4yR9 2016 11 28.11615 02 05 12.42 +00 16 46.1 22.2i 13TE172 W84 C~3clO 2016 11 28.117002 02 05 12.41 +00 16 46.3 23.2g 13TE172 W84 C~35bZ 2016 12 23.23522 02 03 42.30 +00 19 17.4 22.8z 13TE172 T09 C~7bID 2016 12 23.33073 02 03 42.06 +00 19 18.9 22.3z 13TE172 T09 C~7bID 2016 12 23.34086 02 03 42.03 +00 19 18.9 22.4z 13TE172 T09 C~7bID 2016 12 23.38550 02 03 41.90 +00 19 19.8 22.6z 13TE172 T09 C~7bID 2016 12 23.39357 02 03 41.88 +00 19 19.9 22.8z 13TE172 T09 C~7bID 2016 12 23.39624 02 03 41.88 +00 19 20.0 22.3z 13TE172 T09 C~7bID 2017 08 27.408981 02 17 34.56 +02 11 56.5 22.4i 13TE172 W84 C~35bZ 2017 08 27.40951 02 17 34.563 +02 11 56.47 22.2i 13TE172 W84 C~4yR9 2017 08 27.41993 02 17 34.534 +02 11 56.05 22.6z 13TE172 W84 C~4yR9 2017 09 18.334687 02 16 26.60 +02 04 00.7 22.6r 13TE172 W84 C~35bZ 2017 09 18.33522 02 16 26.598 +02 04 00.64 22.6r 13TE172 W84 C~4yR9 2017 09 18.336088 02 16 26.58 +02 04 00.6 23.3g 13TE172 W84 C~35bZ 2017 09 18.33661 02 16 26.587 +02 04 00.44 22.8g 13TE172 W84 C~4yR9 2017 10 27.253773 02 13 10.96 +01 48 57.3 23.7g 13TE172 W84 C~35bZ 2017 10 27.25430 02 13 10.962 +01 48 57.21 23.4g 13TE172 W84 C~4yR9 2017 11 01.164572 02 12 43.54 +01 47 25.2 22.1z 13TE172 W84 C~35ba 2017 11 01.16510 02 12 43.538 +01 47 25.28 22.3z 13TE172 W84 C~4yR9 2018 09 09.28945 02 22 07.925 +03 32 27.70 22.5z 13TE172 W84 C~4yR9 2018 10 20.21247 02 19 01.610 +03 17 06.92 22.5z 13TE172 W84 C~4yR9 2022 11 28.244860 02 36 11.262 +08 44 58.81 22.7G 13TE172 G37 C~675S 2022 11 28.295660 02 36 10.992 +08 44 58.60 13TE172 G37 C~675S 2022 11 28.345250 02 36 10.738 +08 44 57.83 13TE172 G37 C~675S
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 -0.03 0.00 -0.09
2 0.0626 0.00 0.15 0.00 0.00
3 0.1091 0.00 -0.01 0.00 -0.01
4 0.8709 0.00 -0.18 0.00 0.22
5 0.9940 0.00 0.03 0.00 0.04
6 1.2233 0.00 0.12 0.00 -0.21
7 1.2260 0.00 0.22 0.00 0.08
8 1.2260 0.00 0.09 0.00 -0.13
9 1.2835 0.00 -0.12 0.00 0.03
10 1.2835 0.00 0.15 0.00 0.06
11 1.2917 0.00 -0.30 0.00 -0.23
12 1.2917 0.00 -0.07 0.00 -0.17
13 2.2718 0.00 0.04 0.00 0.04
14 2.2718 0.00 0.33 0.00 -0.09
15 2.2718 0.00 0.36 0.00 -0.15
16 2.9350 0.00 -0.02 0.00 -0.10
17 2.9350 0.00 0.02 0.00 -0.09
18 2.9350 0.00 -0.04 0.00 0.09
19 2.9353 0.00 0.07 0.00 0.11
20 3.0634 0.00 0.08 0.00 0.06
21 3.0634 0.00 0.16 0.00 0.06
22 3.0634 0.00 -0.30 0.00 -0.13
23 3.0935 0.00 0.04 0.00 0.04
24 3.1045 0.00 0.10 0.00 -0.07
25 3.1481 0.00 -0.03 0.00 0.15
26 3.1481 0.00 0.07 0.00 0.10
27 3.1508 0.00 -0.20 0.00 0.07
28 3.1508 0.00 -0.29 0.00 0.28
29 3.2196 0.00 -0.02 0.00 0.01
30 3.2199 0.00 0.08 0.00 0.11
31 3.2199 0.00 0.02 0.00 -0.04
32 3.2200 0.00 -0.22 0.00 0.20
33 3.2200 0.00 -0.21 0.00 0.18
34 3.2200 0.00 -0.11 0.00 0.24
35 3.8963 0.00 0.05 0.00 0.05
36 3.8963 0.00 0.12 0.00 0.03
37 3.8964 0.00 0.03 0.00 -0.20
38 3.9564 0.00 0.07 0.00 0.14
39 3.9564 0.00 0.07 0.00 0.09
40 3.9564 0.00 -0.15 0.00 0.07
41 3.9564 0.00 -0.01 0.00 -0.08
42 4.0629 0.00 -0.08 0.00 0.04
43 4.0629 0.00 -0.01 0.00 -0.03
44 4.0764 0.00 -0.00 0.00 -0.30
45 4.0764 0.00 0.01 0.00 -0.21
46 4.9309 0.00 0.14 0.00 0.04
47 5.0430 0.00 -0.01 0.00 -0.09
48 9.1498 0.00 0.11 0.00 -0.14
49 9.1500 0.00 -0.02 0.00 0.16
50 9.1501 0.00 -0.00 0.00 -0.12
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.
13TE172 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 48.730 48.730 48.730 ecceobj 0.268 0.268 0.268 incobj 29.794 29.794 29.794 qmin 34.239 34.257 34.248 qmax 62.859 62.882 62.862 amean 48.264 48.269 48.257 amin 47.785 47.772 47.783 amax 48.823 48.829 48.814 emean 0.266 0.266 0.266 emin 0.243 0.243 0.243 emax 0.289 0.289 0.289 imean 28.705 28.712 28.703 imin 28.049 28.041 28.049 imax 29.271 29.281 29.271 excite_mean 0.549 0.549 0.549 fracstop 1.000 1.000 1.000 cjmean 2.765 2.765 2.765 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 168.7 169.0 168.6 kozaiamp 180.0 180.0 179.9