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: 14QG442 # Created Wed Dec 25 02:09:54 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 50 observations of 50 # Arc: 8.35y # First observation: 2014/08/19 # Last observation: 2022/12/26 # Chi-squared of fit: 41.11 DOF: 94 RMS: 0.16 # Min/Max residuals: -0.56 0.47 # Exact a, adot, b, bdot, g, gdot: 1.705460E-05 2.690433E-02 5.313813E-06 8.363895E-03 2.578997E-02 7.993653E-03 # Covariance matrix: 1.0047E-13 4.1755E-14 1.8310E-14 9.7350E-15 1.0403E-13 1.8848E-13 4.1755E-14 1.7165E-13 1.2644E-14 4.9019E-14 1.4695E-13 8.5604E-13 1.8310E-14 1.2644E-14 4.1994E-14 -5.0582E-15 2.9103E-14 4.5869E-14 9.7350E-15 4.9019E-14 -5.0582E-15 2.2921E-14 3.7883E-14 2.6292E-13 1.0403E-13 1.4695E-13 2.9103E-14 3.7883E-14 2.0515E-13 6.8419E-13 1.8848E-13 8.5604E-13 4.5869E-14 2.6292E-13 6.8419E-13 4.5659E-12 # lat0 lon0 xBary yBary zBary JD0 -26.201187 41.362456 0.981078 -0.114351 -0.232684 2456888.924841 # Heliocentric elements and errors Epoch: 2456888.5000 = 2014/08/19 Mean Anomaly: 27.57814 +/- 0.004 Argument of Peri: 242.24308 +/- 0.009 Long of Asc Node: 95.98267 +/- 0.000 Inclination: 30.43182 +/- 0.000 Eccentricity: 0.36291080 +/- 0.0001 Semi-Major Axis: 53.64391399 +/- 0.0044 Time of Perihelion: 2445894.8591 +/- 2.1 Perihelion: 34.17595825 +/- 0.0049 Aphelion: 73.11186974 +/- 0.0072 Period (y) 392.9062 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 26.95219965 +/- 0.0005 Ecliptic Y 22.42739205 +/- 0.0004 Ecliptic Z -17.11983422 +/- 0.0003 Ecliptic XDOT -0.00102658 +/- 0.0000 Ecliptic YDOT 0.00290159 +/- 0.0000 Ecliptic ZDOT 0.00042211 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.01902400 +/- 0.0004 Geocenter to KBO 38.77460658 +/- 0.0007 # Hcoef: 6.69
The following table shows the complete astrometric record for 14QG442. 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 (14QG442) followed by the observatory code and reference code for the source of the astrometry.
2014 08 19.424063 03 07 35.85 -09 44 37.2 22.3i 14QG442 W84 C~352Q 2014 08 19.424583 03 07 35.84 -09 44 36.9 22.6i 14QG442 W84 C~2Bnh 2014 08 19.42459 03 07 35.855 -09 44 37.15 22.6i 14QG442 W84 C~4yTx 2014 09 04.374977 03 07 25.20 -09 54 24.5 22.9g 14QG442 W84 C~352Q 2014 09 04.37550 03 07 25.200 -09 54 24.46 22.9g 14QG442 W84 C~4yTx 2014 09 04.376343 03 07 25.20 -09 54 24.5 22.5r 14QG442 W84 C~352Q 2014 09 04.37687 03 07 25.198 -09 54 24.47 22.5r 14QG442 W84 C~4yTx 2014 09 27.310683 03 06 28.63 -10 08 57.5 22.7g 14QG442 W84 C~352Q 2014 09 27.311204 03 06 28.65 -10 08 57.2 22.8g 14QG442 W84 C~2Bnh 2014 09 27.31121 03 06 28.632 -10 08 57.49 23.1g 14QG442 W84 C~4yTx 2014 09 27.312060 03 06 28.63 -10 08 57.6 22.4r 14QG442 W84 C~352Q 2014 09 27.31258 03 06 28.630 -10 08 57.57 22.6r 14QG442 W84 C~4yTx 2014 09 27.312581 03 06 28.64 -10 08 57.4 22.6r 14QG442 W84 C~2Bnh 2014 09 27.313426 03 06 28.61 -10 08 57.7 22.2i 14QG442 W84 C~352Q 2014 09 27.313947 03 06 28.63 -10 08 57.5 22.5i 14QG442 W84 C~2Bnh 2014 09 27.31395 03 06 28.615 -10 08 57.66 22.3i 14QG442 W84 C~4yTx 2014 10 14.36212 03 05 20.574 -10 18 36.99 22.3z 14QG442 W84 C~4yTx 2014 10 21.356875 03 04 47.98 -10 21 59.1 22.6r 14QG442 W84 C~352Q 2014 10 21.357396 03 04 47.98 -10 21 59.4 22.6r 14QG442 W84 C~2Bnh 2014 10 21.35740 03 04 47.984 -10 21 59.11 22.7r 14QG442 W84 C~4yTx 2014 10 21.358241 03 04 47.98 -10 21 59.3 22.4i 14QG442 W84 C~352Q 2014 10 21.358762 03 04 47.97 -10 21 59.5 22.8i 14QG442 W84 C~2Bnh 2014 10 21.35877 03 04 47.975 -10 21 59.26 22.6i 14QG442 W84 C~4yTx 2014 10 21.360984 03 04 47.96 -10 21 59.2 22.3z 14QG442 W84 C~352Q 2014 10 21.361505 03 04 47.96 -10 21 59.2 23.1z 14QG442 W84 C~2Bnh 2014 10 21.36151 03 04 47.960 -10 21 59.20 22.5z 14QG442 W84 C~4yTx 2014 10 23.349977 03 04 38.32 -10 22 51.8 22.8g 14QG442 W84 C~352Q 2014 10 23.350498 03 04 38.32 -10 22 51.9 23.4g 14QG442 W84 C~2Bnh 2014 10 23.35050 03 04 38.323 -10 22 51.83 23.1g 14QG442 W84 C~4yTx 2014 10 23.351331 03 04 38.32 -10 22 51.8 22.2i 14QG442 W84 C~352Q 2014 10 23.351852 03 04 38.32 -10 22 51.8 22.3i 14QG442 W84 C~2Bnh 2014 10 23.35186 03 04 38.316 -10 22 51.74 22.6i 14QG442 W84 C~4yTx 2014 10 28.33621 03 04 13.576 -10 24 53.36 22.7i 14QG442 W84 C~4yTx 2014 12 12.21368 03 00 31.239 -10 29 11.63 22.6z 14QG442 W84 C~4yTx 2015 02 09.039525 02 58 46.39 -09 55 14.0 22.8z 14QG442 W84 C~352Q 2015 12 19.10845 03 05 30.988 -09 32 07.70 22.7z 14QG442 W84 C~4yTx 2016 01 02.121701 03 04 43.95 -09 26 49.4 22.5r 14QG442 W84 C~352Q 2016 01 02.122222 03 04 43.96 -09 26 49.0 22.7r 14QG442 W84 C~2Bnh 2016 01 02.12223 03 04 43.947 -09 26 49.38 22.5r 14QG442 W84 C~4yTx 2016 01 02.123067 03 04 43.94 -09 26 49.5 22.6i 14QG442 W84 C~352Q 2016 01 02.123576 03 04 43.97 -09 26 48.9 22.4i 14QG442 W84 C~2Bnh 2016 01 02.12359 03 04 43.943 -09 26 49.47 22.3i 14QG442 W84 C~4yTy 2016 01 02.124433 03 04 43.92 -09 26 49.4 23.2g 14QG442 W84 C~352Q 2016 01 02.124942 03 04 43.93 -09 26 49.0 22.7g 14QG442 W84 C~2Bnh 2016 01 02.12496 03 04 43.927 -09 26 49.38 22.9g 14QG442 W84 C~4yTy 2017 12 20.28361 03 15 57.539 -07 42 32.69 22.4R 14QG442 G37 C~2Uxc 2017 12 20.36026 03 15 57.233 -07 42 31.49 14QG442 G37 C~2Uxc 2022 12 26.130200 03 40 20.882 -03 18 15.74 22.9G 14QG442 G37 C~69bF 2022 12 26.183060 03 40 20.680 -03 18 15.16 14QG442 G37 C~69bF 2022 12 26.246070 03 40 20.375 -03 18 14.62 14QG442 G37 C~69bF
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 -0.10 0.00 -0.07
2 0.0000 0.00 -0.25 0.00 0.25
3 0.0000 0.00 -0.02 0.00 -0.00
4 0.0437 0.00 0.05 0.00 -0.11
5 0.0437 0.00 0.06 0.00 -0.05
6 0.0437 0.00 0.08 0.00 -0.06
7 0.0437 0.00 0.06 0.00 -0.01
8 0.1065 0.00 -0.01 0.00 -0.01
9 0.1065 0.00 0.31 0.00 0.31
10 0.1065 0.00 0.04 0.00 0.02
11 0.1065 0.00 0.06 0.00 -0.06
12 0.1065 0.00 0.09 0.00 -0.01
13 0.1065 0.00 0.24 0.00 0.16
14 0.1065 0.00 -0.17 0.00 -0.11
15 0.1065 0.00 0.16 0.00 0.11
16 0.1065 0.00 -0.07 0.00 -0.05
17 0.1532 0.00 0.02 0.00 0.04
18 0.1723 0.00 -0.09 0.00 -0.00
19 0.1723 0.00 -0.05 0.00 -0.29
20 0.1723 0.00 0.01 0.00 0.00
21 0.1723 0.00 0.01 0.00 -0.17
22 0.1723 0.00 -0.10 0.00 -0.35
23 0.1723 0.00 -0.02 0.00 -0.11
24 0.1723 0.00 -0.09 0.00 0.01
25 0.1723 0.00 -0.05 0.00 0.02
26 0.1723 0.00 -0.05 0.00 0.02
27 0.1778 0.00 -0.09 0.00 0.04
28 0.1778 0.00 -0.05 0.00 -0.05
29 0.1778 0.00 -0.01 0.00 0.02
30 0.1778 0.00 0.01 0.00 0.07
31 0.1778 0.00 0.05 0.00 0.08
32 0.1778 0.00 -0.01 0.00 0.14
33 0.1914 0.00 -0.09 0.00 -0.01
34 0.3143 0.00 0.03 0.00 -0.14
35 0.4753 0.00 0.12 0.00 -0.20
36 1.3325 0.00 0.02 0.00 0.04
37 1.3708 0.00 0.05 0.00 0.02
38 1.3708 0.00 0.22 0.00 0.40
39 1.3708 0.00 0.02 0.00 0.02
40 1.3708 0.00 -0.05 0.00 -0.12
41 1.3708 0.00 0.43 0.00 0.47
42 1.3708 0.00 0.02 0.00 -0.11
43 1.3708 0.00 -0.29 0.00 -0.06
44 1.3708 0.00 -0.11 0.00 0.33
45 1.3708 0.00 -0.16 0.00 -0.05
46 3.3371 0.00 -0.10 0.00 -0.06
47 3.3373 0.00 -0.15 0.00 -0.08
48 8.3524 0.00 0.29 0.00 0.20
49 8.3525 0.00 0.34 0.00 0.04
50 8.3527 0.00 -0.56 0.00 -0.32
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.
14QG442 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 54.342 54.342 54.342 ecceobj 0.371 0.371 0.371 incobj 30.446 30.446 30.446 qmin 33.145 33.199 33.093 qmax 75.164 75.271 75.422 amean 53.656 53.704 53.699 amin 53.006 53.012 53.042 amax 54.443 54.490 54.484 emean 0.359 0.359 0.360 emin 0.335 0.335 0.336 emax 0.381 0.382 0.384 imean 28.974 29.028 28.952 imin 28.304 28.369 28.259 imax 29.968 29.924 29.929 excite_mean 0.603 0.604 0.604 fracstop 1.000 1.000 1.000 cjmean 2.741 2.740 2.741 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 182.9 182.0 181.9 kozaiamp 180.0 180.0 179.9