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: 15TQ408 # Created Fri Nov 22 02:10:30 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 34 observations of 34 # Arc: 19.08y # First observation: 2002/09/05 # Last observation: 2021/10/03 # Chi-squared of fit: 116.29 DOF: 62 RMS: 0.33 # Min/Max residuals: -1.59 1.26 # Exact a, adot, b, bdot, g, gdot: 1.905807E-05 4.580450E-02 5.390651E-06 1.162512E-02 3.585351E-02 3.681187E-04 # Covariance matrix: 4.2744E-13 2.1932E-13 -5.8078E-15 -1.1151E-15 5.8770E-13 4.1021E-13 2.1932E-13 5.5576E-13 -1.1457E-14 -1.3841E-15 7.2063E-13 1.0259E-12 -5.8078E-15 -1.1457E-14 7.0086E-14 -4.6553E-14 -1.6005E-14 -2.3081E-14 -1.1151E-15 -1.3841E-15 -4.6553E-14 4.4665E-14 -2.3348E-15 -2.5556E-15 5.8770E-13 7.2063E-13 -1.6005E-14 -2.3348E-15 1.2226E-12 1.3266E-12 4.1021E-13 1.0259E-12 -2.3081E-14 -2.5556E-15 1.3266E-12 2.1286E-12 # lat0 lon0 xBary yBary zBary JD0 -0.532778 1.490042 0.332431 -0.008923 -0.954023 2452522.818950 # Heliocentric elements and errors Epoch: 2452522.5000 = 2002/09/05 Mean Anomaly: 359.20646 +/- 0.077 Argument of Peri: 359.33284 +/- 0.001 Long of Asc Node: 2.86761 +/- 0.001 Inclination: 14.25641 +/- 0.000 Eccentricity: 0.26777805 +/- 0.0001 Semi-Major Axis: 39.39368085 +/- 0.0000 Time of Perihelion: 2452721.5700 +/- 19.2 Perihelion: 28.84491772 +/- 0.0024 Aphelion: 49.94244398 +/- 0.0024 Period (y) 247.2567 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.84252615 +/- 0.0001 Ecliptic Y 0.42343908 +/- 0.0000 Ecliptic Z -0.25917707 +/- 0.0000 Ecliptic XDOT -0.00006226 +/- 0.0000 Ecliptic YDOT 0.00349467 +/- 0.0000 Ecliptic ZDOT 0.00088763 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 28.84680161 +/- 0.0001 Geocenter to KBO 27.89130353 +/- 0.0001 # Hcoef: 8.01
The following table shows the complete astrometric record for 15TQ408. 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 (15TQ408) followed by the observatory code and reference code for the source of the astrometry.
2002 09 05.318207 00 06 18.96 +00 06 13.7 15TQ408 645 C~4qVZ 2002 09 05.319036 00 06 18.94 +00 06 13.6 15TQ408 645 C~4qVZ 2002 09 05.321524 00 06 18.92 +00 06 13.7 15TQ408 645 C~4qVZ 2002 10 11.318678 00 02 34.78 -00 13 46.1 15TQ408 645 C~4qVZ 2002 10 11.319508 00 02 34.78 -00 13 46.4 15TQ408 645 C~4qVZ 2002 10 11.321166 00 02 34.76 -00 13 46.1 15TQ408 645 C~4qVZ 2002 10 11.321996 00 02 34.74 -00 13 46.5 15TQ408 645 C~4qVZ 2002 10 30.204796 00 00 51.46 -00 22 33.8 15TQ408 645 C~4qVZ 2002 10 30.205626 00 00 51.45 -00 22 33.5 15TQ408 645 C~4qVZ 2002 10 30.208113 00 00 51.44 -00 22 33.9 15TQ408 645 C~4qVZ 2003 11 19.138778 00 08 01.77 +01 09 36.2 15TQ408 645 C~4qVZ 2003 11 19.139607 00 08 01.76 +01 09 35.9 15TQ408 645 C~4qVZ 2003 11 19.141266 00 08 01.72 +01 09 36.0 15TQ408 645 C~4qVZ 2003 11 19.142095 00 08 01.73 +01 09 35.9 15TQ408 645 C~4qVZ 2003 11 22.235631 00 07 52.75 +01 08 57.5 22.3i 15TQ408 568 C~4qVZ 2003 11 22.287947 00 07 52.58 +01 08 56.9 22.4i 15TQ408 568 C~4qVZ 2003 11 22.337121 00 07 52.45 +01 08 56.4 22.4i 15TQ408 568 C~4qVZ 2008 10 28.336089 00 52 23.82 +09 25 00.9 22.5r 15TQ408 645 C~4qVZ 2008 10 28.336918 00 52 23.82 +09 25 00.9 22.5i 15TQ408 645 C~4qVZ 2008 10 28.338577 00 52 23.81 +09 25 00.7 21.9z 15TQ408 645 C~4qVZ 2008 10 28.339406 00 52 23.80 +09 25 00.9 23.2g 15TQ408 645 C~4qVZ 2015 10 13.34554 01 56 05.533 +20 00 49.20 23.0r 15TQ408 568 C~3wqM 2015 10 13.43644 01 56 04.930 +20 00 46.94 23.2r 15TQ408 568 C~3wqM 2015 10 13.58273 01 56 03.937 +20 00 43.32 23.0r 15TQ408 568 C~3wqM 2015 11 14.22145 01 52 35.556 +19 44 47.70 15TQ408 304 C~3wqM 2015 11 15.11653 01 52 30.058 +19 44 17.82 15TQ408 304 C~3wqM 2015 11 15.14350 01 52 29.850 +19 44 17.31 15TQ408 304 C~3wqM 2015 12 09.16785 01 50 24.901 +19 31 39.67 15TQ408 304 C~3wqM 2015 12 09.19141 01 50 24.804 +19 31 38.88 15TQ408 304 C~3wqM 2018 10 16.208802 02 23 05.79 +23 52 37.2 22.0z 15TQ408 W84 C~4qVZ 2018 10 16.276649 02 23 05.36 +23 52 35.8 22.8r 15TQ408 W84 C~4qVZ 2021 10 03.405430 02 52 13.050 +27 20 51.28 22.6G 15TQ408 G37 C~55X7 2021 10 03.437860 02 52 13.007 +27 20 49.81 15TQ408 G37 C~55X7 2021 10 03.470410 02 52 12.831 +27 20 49.40 15TQ408 G37 C~55X7
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 0.24 0.00 0.04
2 0.0000 0.00 0.01 0.00 -0.03
3 0.0000 0.00 -0.06 0.00 0.15
4 0.0986 0.00 -0.02 0.00 0.08
5 0.0986 0.00 0.05 0.00 -0.19
6 0.0986 0.00 -0.09 0.00 0.16
7 0.0986 0.00 -0.32 0.00 -0.21
8 0.1503 0.00 0.06 0.00 0.09
9 0.1503 0.00 -0.03 0.00 0.41
10 0.1503 0.00 0.01 0.00 0.07
11 1.2042 0.00 0.12 0.00 0.21
12 1.2042 0.00 0.01 0.00 -0.08
13 1.2042 0.00 -0.51 0.00 0.05
14 1.2042 0.00 -0.32 0.00 -0.04
15 1.2126 0.00 0.28 0.00 -0.03
16 1.2128 0.00 -0.02 0.00 -0.04
17 1.2129 0.00 0.13 0.00 0.01
18 6.1465 0.00 0.12 0.00 -0.17
19 6.1465 0.00 0.19 0.00 -0.14
20 6.1465 0.00 0.19 0.00 -0.29
21 6.1465 0.00 0.12 0.00 -0.06
22 13.1034 0.00 -0.02 0.00 -0.12
23 13.1037 0.00 0.05 0.00 -0.13
24 13.1041 0.00 -0.17 0.00 -0.06
25 13.1907 0.00 0.46 0.00 -0.02
26 13.1932 0.00 0.22 0.00 -0.37
27 13.1932 0.00 -0.38 0.00 0.01
28 13.2590 0.00 -0.12 0.00 0.33
29 13.2591 0.00 -0.10 0.00 0.23
30 16.1120 0.00 0.12 0.00 -0.26
31 16.1121 0.00 0.48 0.00 -0.29
32 19.0776 0.00 -1.59 0.00 1.26
33 19.0777 0.00 0.46 0.00 -0.06
34 19.0778 0.00 0.53 0.00 -0.30
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.
15TQ408 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.777 39.777 39.777 ecceobj 0.275 0.275 0.275 incobj 14.216 14.216 14.216 qmin 27.268 27.268 27.268 qmax 52.307 52.307 52.307 amean 39.455 39.455 39.455 amin 39.001 39.001 39.001 amax 40.010 40.010 40.010 emean 0.280 0.280 0.280 emin 0.253 0.253 0.253 emax 0.309 0.309 0.309 imean 13.617 13.616 13.617 imin 12.092 12.092 12.092 imax 15.109 15.109 15.109 excite_mean 0.366 0.366 0.366 fracstop 1.000 1.000 1.000 cjmean 2.899 2.899 2.899 libcent 0 180.7 180.7 180.7 libamp 0 82.4 82.4 82.4 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 167.6 167.6 167.6 kozaiamp 180.0 180.0 180.0