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: 14QT495 # Created Tue Jan 21 02:10:10 2025 # Orbit generated from Bernstein formalism # Fitting 29 observations of 29 # Arc: 4.26y # First observation: 2014/08/22 # Last observation: 2018/11/26 Preliminary a, adot, b, bdot, g, gdot: 0.000139 0.046796 -0.000060 -0.004187 0.033869 0.000000 # Chi-squared of fit: 7.87 DOF: 52 RMS: 0.09 # Min/Max residuals: -0.22 0.26 # Exact a, adot, b, bdot, g, gdot: 2.202642E-05 4.688903E-02 -1.632951E-06 -4.167655E-03 3.387988E-02 2.337142E-03 # Covariance matrix: 4.0600E-13 -1.2774E-13 -2.7196E-14 1.6713E-14 2.0484E-13 -5.6571E-13 -1.2774E-13 2.8258E-13 6.4252E-15 -2.4044E-14 1.1284E-13 1.6741E-12 -2.7196E-14 6.4252E-15 1.5742E-13 -6.1032E-14 -2.2861E-14 5.4731E-14 1.6713E-14 -2.4044E-14 -6.1032E-14 3.6717E-14 -6.7862E-16 -1.6646E-13 2.0484E-13 1.1284E-13 -2.2861E-14 -6.7862E-16 2.9035E-13 6.5346E-13 -5.6571E-13 1.6741E-12 5.4731E-14 -1.6646E-13 6.5346E-13 1.1320E-11 # lat0 lon0 xBary yBary zBary JD0 -45.426906 6.488448 0.617532 -0.573013 -0.564722 2456891.854328 # Heliocentric elements and errors Epoch: 2456890.5000 = 2014/08/21 Mean Anomaly: 1.49347 +/- 0.004 Argument of Peri: 258.81381 +/- 0.013 Long of Asc Node: 103.87503 +/- 0.000 Inclination: 44.68334 +/- 0.000 Eccentricity: 0.47296609 +/- 0.0001 Semi-Major Axis: 57.03207729 +/- 0.0079 Time of Perihelion: 2456237.8630 +/- 1.7 Perihelion: 30.05783892 +/- 0.0057 Aphelion: 84.00631566 +/- 0.0122 Period (y) 430.7120 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.44900545 +/- 0.0003 Ecliptic Y 1.82031175 +/- 0.0000 Ecliptic Z -21.02596091 +/- 0.0003 Ecliptic XDOT -0.00053973 +/- 0.0000 Ecliptic YDOT 0.00374841 +/- 0.0000 Ecliptic ZDOT -0.00037079 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 30.09093555 +/- 0.0003 Geocenter to KBO 29.51603904 +/- 0.0005 # Hcoef: 8.53
The following table shows the complete astrometric record for 14QT495. 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 (14QT495) followed by the observatory code and reference code for the source of the astrometry.
2014 08 22.35355 01 48 12.802 -38 27 51.47 23.2r 14QT495 W84 C~4yTz 2014 08 22.35493 01 48 12.800 -38 27 51.44 22.9i 14QT495 W84 C~4yTz 2014 10 20.26021 01 42 24.466 -39 22 11.89 24.0g 14QT495 W84 C~4yTz 2014 10 20.26157 01 42 24.483 -39 22 12.00 22.7i 14QT495 W84 C~4yTz 2014 11 27.15536 01 38 02.208 -39 12 57.07 22.8r 14QT495 W84 C~4yTz 2014 12 11.15412 01 36 57.380 -38 59 51.10 23.4z 14QT495 W84 C~4yTz 2015 01 24.07208 01 36 41.996 -37 55 45.82 23.3r 14QT495 W84 C~4yTz 2015 09 26.359919 01 57 48.59 -37 57 32.8 23.0z 14QT495 W84 C~352Q 2015 11 06.29854 01 52 49.990 -38 15 03.11 22.6i 14QT495 W84 C~4yTz 2015 11 06.299387 01 52 49.98 -38 15 03.1 24.9r 14QT495 W84 C~352Q 2015 11 06.29991 01 52 49.981 -38 15 03.18 23.8r 14QT495 W84 C~4yTz 2015 11 07.29086 01 52 42.751 -38 14 55.22 23.4i 14QT495 W84 C~4yTz 2015 11 07.29223 01 52 42.750 -38 14 55.21 23.3r 14QT495 W84 C~4yTz 2015 11 07.29358 01 52 42.729 -38 14 55.17 23.8g 14QT495 W84 C~4yTz 2015 11 07.29496 01 52 42.718 -38 14 55.19 24.5g 14QT495 W84 C~4yTz 2016 09 09.17937 02 11 15.135 -36 25 04.30 23.0i 14QT495 W84 C~4yTz 2016 10 07.09603 02 08 32.909 -36 52 24.92 23.2i 14QT495 W84 C~4yTz 2016 10 29.30532 02 05 49.258 -37 02 08.75 23.1r 14QT495 W84 C~4yTz 2016 10 29.30670 02 05 49.267 -37 02 08.97 22.4i 14QT495 W84 C~4yTz 2016 12 02.10052 02 01 59.827 -36 51 15.60 23.3r 14QT495 W84 C~4yTz 2016 12 02.10188 02 01 59.824 -36 51 15.61 22.6i 14QT495 W84 C~4yTz 2016 12 02.10325 02 01 59.820 -36 51 15.43 24.0g 14QT495 W84 C~4yTz 2017 10 15.294016 02 19 12.76 -35 39 29.1 23.5r 14QT495 W84 C~352Q 2017 10 15.29455 02 19 12.767 -35 39 28.90 23.6r 14QT495 W84 C~4yTz 2017 10 15.29592 02 19 12.758 -35 39 28.96 24.5g 14QT495 W84 C~4yTz 2017 10 28.327164 02 17 36.84 -35 44 47.3 23.5r 14QT495 W84 C~352Q 2017 10 28.32769 02 17 36.848 -35 44 47.36 23.4r 14QT495 W84 C~4yTz 2018 10 27.24667 02 28 58.434 -34 23 39.27 22.1Y 14QT495 W84 C~4yTz 2018 11 26.21576 02 25 24.274 -34 21 19.17 23.4i 14QT495 W84 C~4yTz
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 -0.06
2 0.0000 -0.01 0.06 0.04 0.05
3 0.1613 -5149.97 -0.09 -803.51 0.07
4 0.1613 -5149.85 0.15 -803.70 -0.17
5 0.2650 -7543.97 0.02 1161.31 0.07
6 0.3034 -7830.11 0.01 2213.62 -0.22
7 0.4236 -6150.20 -0.00 5680.62 0.05
8 1.0952 6753.95 -0.12 -1944.01 0.26
9 1.2072 3196.42 -0.06 -1002.54 0.04
10 1.2072 3196.32 -0.10 -1002.48 0.06
11 1.2072 3196.29 -0.09 -1002.55 -0.04
12 1.2100 3127.39 0.02 -951.82 0.03
13 1.2100 3127.38 0.11 -951.81 -0.03
14 1.2100 3127.19 0.01 -951.65 0.06
15 1.2100 3127.07 -0.01 -951.60 0.04
16 2.0502 17902.90 0.02 -2509.29 0.08
17 2.1266 15352.13 -0.07 -2794.02 -0.22
18 2.1874 13381.30 -0.01 -2205.48 0.11
19 2.1874 13381.27 0.08 -2205.72 -0.20
20 2.2799 11412.71 -0.04 -165.27 0.03
21 2.2799 11412.67 -0.03 -165.26 -0.06
22 2.2799 11412.73 0.07 -165.08 0.01
23 3.1484 24296.12 -0.09 -3536.73 -0.09
24 3.1484 24296.31 0.15 -3536.61 0.01
25 3.1484 24296.18 0.15 -3536.60 -0.00
26 3.1840 23140.01 -0.02 -3125.88 0.14
27 3.1840 23140.06 0.08 -3125.99 0.01
28 4.1804 32959.83 -0.13 -4054.52 -0.02
29 4.2625 30848.91 -0.02 -2355.80 -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.
14QT495 quality flag:2 Type: CENTAURS CENTAURS CENTAURR axisobj 57.829 57.855 57.803 ecceobj 0.480 0.481 0.480 incobj 44.694 44.694 44.694 qmin 29.517 23.552 29.503 qmax 86.321 92.659 86.138 amean 57.162 57.241 57.252 amin 56.282 56.181 56.543 amax 58.152 58.400 58.246 emean 0.455 0.528 0.465 emin 0.421 0.468 0.447 emax 0.484 0.590 0.483 imean 43.740 40.571 43.400 imin 42.816 37.530 42.810 imax 44.859 43.263 43.992 excite_mean 0.828 0.839 0.830 fracstop 1.000 1.000 0.438 cjmean 2.300 2.301 2.299 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 165.9 259.5 302.9 kozaiamp 179.9 180.0 40.2