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: 14QU495 # Created Sun Dec 22 02:09:59 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 34 observations of 34 # Arc: 5.16y # First observation: 2013/10/03 # Last observation: 2018/11/29 # Chi-squared of fit: 9.29 DOF: 62 RMS: 0.09 # Min/Max residuals: -0.22 0.20 # Exact a, adot, b, bdot, g, gdot: 1.886628E-05 3.481526E-02 -6.410692E-06 -1.206979E-02 3.080844E-02 5.063350E-03 # Covariance matrix: 4.0027E-13 -3.4976E-13 -9.4379E-14 1.1216E-13 -9.1068E-14 -1.9191E-12 -3.4976E-13 4.0107E-13 1.1911E-13 -1.4218E-13 1.2955E-13 2.4331E-12 -9.4379E-14 1.1911E-13 2.0513E-13 -9.8535E-14 2.9437E-14 7.7707E-13 1.1216E-13 -1.4218E-13 -9.8535E-14 7.6952E-14 -4.1452E-14 -9.2181E-13 -9.1068E-14 1.2955E-13 2.9437E-14 -4.1452E-14 1.7892E-13 7.1169E-13 -1.9191E-12 2.4331E-12 7.7707E-13 -9.2181E-13 7.1169E-13 1.5772E-11 # lat0 lon0 xBary yBary zBary JD0 -9.648201 23.046319 0.230066 -0.163120 -0.960120 2456568.642258 # Heliocentric elements and errors Epoch: 2456568.5000 = 2013/10/03 Mean Anomaly: 20.61884 +/- 0.010 Argument of Peri: 170.85428 +/- 0.020 Long of Asc Node: 177.61290 +/- 0.000 Inclination: 21.29648 +/- 0.000 Eccentricity: 0.26454557 +/- 0.0001 Semi-Major Axis: 43.64834773 +/- 0.0042 Time of Perihelion: 2450535.7993 +/- 3.1 Perihelion: 32.10137084 +/- 0.0055 Aphelion: 55.19532462 +/- 0.0070 Period (y) 288.3765 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.43110858 +/- 0.0004 Ecliptic Y 12.69955375 +/- 0.0002 Ecliptic Z -5.44023475 +/- 0.0001 Ecliptic XDOT -0.00097459 +/- 0.0000 Ecliptic YDOT 0.00294892 +/- 0.0000 Ecliptic ZDOT -0.00113271 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.42038268 +/- 0.0004 Geocenter to KBO 32.45858125 +/- 0.0004 # Hcoef: 7.82
The following table shows the complete astrometric record for 14QU495. 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 (14QU495) followed by the observatory code and reference code for the source of the astrometry.
2013 10 03.14148 01 39 31.786 -00 00 51.78 23.1g 14QU495 W84 C~4yTz 2013 10 04.19302 01 39 26.378 -00 01 35.68 24.0g 14QU495 W84 C~4yTz 2014 08 18.36136 01 50 39.208 +00 34 36.77 23.1i 14QU495 W84 C~4yTz 2014 10 02.283275 01 48 01.11 +00 05 01.8 22.8i 14QU495 W84 C~35bt 2014 10 02.28380 01 48 01.108 +00 05 01.82 22.7i 14QU495 W84 C~4yTz 2014 10 03.279699 01 47 56.08 +00 04 20.4 23.2r 14QU495 W84 C~35bt 2014 10 03.28022 01 47 56.085 +00 04 20.45 23.3r 14QU495 W84 C~4yTz 2014 10 03.32771 01 47 55.850 +00 04 18.25 23.2g 14QU495 W84 C~4yTz 2014 10 29.25559 01 45 37.335 -00 12 22.37 22.9i 14QU495 W84 C~4yTz 2014 11 16.15607 01 44 05.685 -00 21 09.88 23.1r 14QU495 W84 C~4yTz 2014 11 28.12559 01 43 13.170 -00 25 13.10 21.6z 14QU495 W84 C~4yTz 2014 12 12.05597 01 42 25.894 -00 27 47.90 23.1r 14QU495 W84 C~4yTz 2014 12 16.10942 01 42 15.454 -00 28 05.78 23.1z 14QU495 W84 C~4yTz 2015 08 24.370729 01 58 40.45 +00 36 07.3 23.4r 14QU495 W84 C~35bt 2015 08 24.37126 01 58 40.461 +00 36 07.15 23.4r 14QU495 W84 C~4yTz 2015 08 24.372106 01 58 40.44 +00 36 07.3 23.0i 14QU495 W84 C~35bt 2015 08 24.37263 01 58 40.448 +00 36 07.17 22.9i 14QU495 W84 C~4yTz 2015 08 24.37402 01 58 40.460 +00 36 07.10 23.8g 14QU495 W84 C~4yTz 2015 12 18.13287 01 50 23.545 -00 23 05.06 23.3i 14QU495 W84 C~4yTz 2016 01 12.06145 01 49 56.663 -00 19 53.95 23.4r 14QU495 W84 C~4yTz 2016 09 09.39885 02 06 04.083 +00 30 17.61 22.7i 14QU495 W84 C~4yTz 2016 09 10.29392 02 06 01.099 +00 29 41.73 23.2r 14QU495 W84 C~4yTz 2016 09 10.29529 02 06 01.097 +00 29 41.76 23.9g 14QU495 W84 C~4yTz 2016 11 28.12586 01 59 37.968 -00 15 12.66 23.9g 14QU495 W84 C~4yTz 2016 11 28.15220 01 59 37.852 -00 15 13.06 22.3z 14QU495 W84 C~4yTz 2017 10 29.261563 02 10 16.48 +00 02 32.8 22.9r 14QU495 W84 C~35bt 2017 10 29.26209 02 10 16.484 +00 02 32.77 22.8r 14QU495 W84 C~4yTz 2017 10 29.262940 02 10 16.48 +00 02 32.9 23.5g 14QU495 W84 C~35bt 2017 10 29.26346 02 10 16.478 +00 02 32.81 23.3g 14QU495 W84 C~4yTz 2017 10 30.21674 02 10 11.290 +00 02 00.96 22.8z 14QU495 W84 C~4yTz 2017 11 16.167674 02 08 41.64 -00 06 08.3 23.0i 14QU495 W84 C~35bt 2017 11 16.16821 02 08 41.645 -00 06 08.29 22.5i 14QU495 W84 C~4yTz 2017 11 16.16958 02 08 41.628 -00 06 08.52 24.0g 14QU495 W84 C~4yTz 2018 11 29.18186 02 15 42.137 -00 05 26.54 23.1r 14QU495 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 -0.21 0.00 -0.03
2 0.0029 0.00 0.20 0.00 -0.00
3 0.8740 0.00 -0.03 0.00 -0.16
4 0.9970 0.00 0.03 0.00 0.00
5 0.9970 0.00 0.04 0.00 0.04
6 0.9997 0.00 -0.07 0.00 0.11
7 0.9997 0.00 0.05 0.00 0.18
8 0.9998 0.00 0.19 0.00 -0.05
9 1.0708 0.00 -0.08 0.00 -0.08
10 1.1198 0.00 0.03 0.00 -0.06
11 1.1526 0.00 -0.14 0.00 0.17
12 1.1907 0.00 -0.01 0.00 0.00
13 1.2018 0.00 0.06 0.00 -0.18
14 1.8897 0.00 -0.11 0.00 0.08
15 1.8897 0.00 0.07 0.00 -0.06
16 1.8897 0.00 -0.22 0.00 0.12
17 1.8897 0.00 -0.08 0.00 0.01
18 1.8898 0.00 0.14 0.00 -0.01
19 2.2067 0.00 0.06 0.00 0.01
20 2.2749 0.00 0.03 0.00 0.03
21 2.9357 0.00 0.14 0.00 0.01
22 2.9381 0.00 0.04 0.00 -0.07
23 2.9381 0.00 0.08 0.00 0.01
24 3.1540 0.00 0.02 0.00 -0.05
25 3.1540 0.00 -0.00 0.00 -0.03
26 4.0715 0.00 -0.11 0.00 0.00
27 4.0715 0.00 -0.00 0.00 -0.01
28 4.0715 0.00 0.01 0.00 0.15
29 4.0715 0.00 0.02 0.00 0.07
30 4.0741 0.00 -0.13 0.00 0.04
31 4.1205 0.00 0.02 0.00 0.01
32 4.1205 0.00 0.13 0.00 0.03
33 4.1205 0.00 -0.02 0.00 -0.16
34 5.1555 0.00 0.05 0.00 -0.05
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.
14QU495 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE axisobj 43.935 43.935 43.935 ecceobj 0.270 0.270 0.270 incobj 21.245 21.245 21.245 qmin 31.545 31.570 31.560 qmax 56.600 56.506 56.619 amean 43.725 43.725 43.725 amin 43.228 43.229 43.229 amax 44.290 44.289 44.318 emean 0.250 0.250 0.250 emin 0.213 0.213 0.213 emax 0.279 0.277 0.278 imean 21.605 21.595 21.612 imin 20.507 20.552 20.567 imax 22.877 22.879 22.875 excite_mean 0.445 0.446 0.446 fracstop 1.000 1.000 1.000 cjmean 2.858 2.857 2.857 libcent 0 176.3 177.7 175.2 libamp 0 138.7 137.9 138.7 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 206.7 205.2 202.8 kozaiamp 180.0 180.0 180.0