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: 14RL74 # Created Sun Dec 22 02:10:01 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 32 observations of 32 # Arc: 7.16y # First observation: 2014/09/15 # Last observation: 2021/11/11 # Chi-squared of fit: 10.77 DOF: 58 RMS: 0.10 # Min/Max residuals: -0.30 0.24 # Exact a, adot, b, bdot, g, gdot: 1.256980E-05 1.617036E-02 -2.637952E-06 -3.806603E-03 1.998094E-02 -2.976661E-03 # Covariance matrix: 3.1402E-13 -5.8226E-14 -1.8265E-14 1.2153E-14 1.6460E-13 -3.1099E-13 -5.8226E-14 6.5706E-14 1.6225E-14 -1.6825E-14 2.7634E-14 5.4735E-13 -1.8265E-14 1.6225E-14 1.0523E-13 -2.5204E-14 2.5193E-16 1.5092E-13 1.2153E-14 -1.6825E-14 -2.5204E-14 1.2438E-14 -6.8141E-15 -1.5810E-13 1.6460E-13 2.7634E-14 2.5193E-16 -6.8141E-15 1.8936E-13 3.0312E-13 -3.1099E-13 5.4735E-13 1.5092E-13 -1.5810E-13 3.0312E-13 5.1631E-12 # lat0 lon0 xBary yBary zBary JD0 -27.717756 33.218320 0.662430 -0.353398 -0.672942 2456915.828318 # Heliocentric elements and errors Epoch: 2456916.5000 = 2014/09/16 Mean Anomaly: 257.68322 +/- 0.031 Argument of Peri: 9.39525 +/- 0.021 Long of Asc Node: 150.30431 +/- 0.001 Inclination: 30.30932 +/- 0.000 Eccentricity: 0.20925889 +/- 0.0001 Semi-Major Axis: 46.84326029 +/- 0.0040 Time of Perihelion: 2490198.8090 +/- 14.7 Perihelion: 37.04089163 +/- 0.0060 Aphelion: 56.64562896 +/- 0.0070 Period (y) 320.6113 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.06084274 +/- 0.0008 Ecliptic Y 24.13556804 +/- 0.0005 Ecliptic Z -23.27814196 +/- 0.0005 Ecliptic XDOT -0.00172357 +/- 0.0000 Ecliptic YDOT 0.00151842 +/- 0.0000 Ecliptic ZDOT -0.00027192 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 50.72512524 +/- 0.0007 Geocenter to KBO 50.04783966 +/- 0.0011 # Hcoef: 5.78
The following table shows the complete astrometric record for 14RL74. 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 (14RL74) followed by the observatory code and reference code for the source of the astrometry.
2014 09 15.32754 02 41 32.44 -13 31 21.0 22.3z 14RL74 W84 C~3cnV 2014 10 27.26182 02 39 12.177 -13 53 21.07 23.3g 14RL74 W84 C~4yUF 2014 10 29.32490 02 39 03.887 -13 54 06.36 23.7g 14RL74 W84 C~4yUF 2014 11 03.31340 02 38 43.751 -13 55 46.00 23.4g 14RL74 W84 C~4yUF 2014 12 12.19982 02 36 19.157 -13 59 22.62 22.8z 14RL74 W84 C~4yUF 2014 12 12.20119 02 36 19.152 -13 59 22.54 22.6i 14RL74 W84 C~4yUF 2014 12 16.19628 02 36 07.467 -13 58 45.42 22.6i 14RL74 W84 C~4yUF 2014 12 20.17834 02 35 56.724 -13 57 57.61 23.6g 14RL74 W84 C~4yUF 2014 12 24.17015 02 35 46.930 -13 56 59.38 22.2r 14RL74 W84 C~4yUF 2015 12 17.16252 02 39 58.245 -13 52 16.56 22.5i 14RL74 W84 C~4yUF 2015 12 17.16391 02 39 58.238 -13 52 16.74 22.6r 14RL74 W84 C~4yUF 2015 12 17.16529 02 39 58.238 -13 52 16.65 22.9g 14RL74 W84 C~4yUF 2016 09 11.40594 02 49 28.196 -13 15 22.59 22.9i 14RL74 W84 C~4yUF 2016 09 24.29108 02 48 57.062 -13 23 20.35 22.7r 14RL74 W84 C~4yUF 2016 09 25.25510 02 48 54.339 -13 23 55.09 23.5g 14RL74 W84 C~4yUF 2016 11 17.21008 02 45 35.751 -13 45 52.35 23.3z 14RL74 W84 C~4yUF 2016 12 05.21684 02 44 27.909 -13 46 55.77 22.5r 14RL74 W84 C~4yUF 2016 12 05.21821 02 44 27.903 -13 46 55.81 22.8i 14RL74 W84 C~4yUF 2016 12 05.21960 02 44 27.905 -13 46 55.80 23.0g 14RL74 W84 C~4yUF 2017 02 02.04873 02 42 52.242 -13 26 00.76 22.7z 14RL74 W84 C~4yUF 2017 10 21.28416 02 51 22.465 -13 30 19.69 22.8r 14RL74 W84 C~4yUF 2017 10 21.28553 02 51 22.462 -13 30 19.86 22.9i 14RL74 W84 C~4yUF 2017 10 21.28691 02 51 22.450 -13 30 19.80 23.5g 14RL74 W84 C~4yUF 2018 01 16.10243 02 46 46.836 -13 28 31.48 22.9r 14RL74 W84 C~4yUF 2018 01 16.10379 02 46 46.831 -13 28 31.43 22.6i 14RL74 W84 C~4yUF 2018 01 16.10517 02 46 46.823 -13 28 31.43 23.8g 14RL74 W84 C~4yUF 2021 10 31.470119 03 06 44.541 -13 02 36.98 22.5w 14RL74 F51 C~5BUG 2021 10 31.482138 03 06 44.471 -13 02 36.84 22.7w 14RL74 F51 C~5BUG 2021 10 31.494197 03 06 44.407 -13 02 37.21 22.6w 14RL74 F51 C~5BUG 2021 11 11.404374 03 05 59.142 -13 06 03.89 22.5w 14RL74 F51 C~5BUG 2021 11 11.430139 03 05 59.050 -13 06 04.07 22.7w 14RL74 F51 C~5BUG 2021 11 11.443043 03 05 59.007 -13 06 04.16 23.0w 14RL74 F51 C~5BUG
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 0.07 0.00 -0.06
2 0.1148 0.00 -0.07 0.00 -0.11
3 0.1205 0.00 -0.17 0.00 0.03
4 0.1341 0.00 0.08 0.00 0.04
5 0.2406 0.00 0.08 0.00 -0.09
6 0.2406 0.00 0.07 0.00 -0.02
7 0.2515 0.00 -0.00 0.00 0.05
8 0.2624 0.00 -0.01 0.00 0.14
9 0.2734 0.00 0.03 0.00 -0.08
10 1.2535 0.00 -0.04 0.00 0.15
11 1.2535 0.00 -0.08 0.00 -0.05
12 1.2535 0.00 -0.02 0.00 0.03
13 1.9906 0.00 -0.04 0.00 0.16
14 2.0259 0.00 0.04 0.00 0.13
15 2.0285 0.00 0.08 0.00 0.03
16 2.1735 0.00 -0.01 0.00 -0.11
17 2.2228 0.00 -0.01 0.00 -0.00
18 2.2228 0.00 -0.02 0.00 -0.04
19 2.2228 0.00 0.08 0.00 -0.04
20 2.3839 0.00 0.09 0.00 0.02
21 3.0991 0.00 -0.01 0.00 0.04
22 3.0991 0.00 0.03 0.00 -0.09
23 3.0991 0.00 -0.07 0.00 0.01
24 3.3368 0.00 0.08 0.00 -0.01
25 3.3368 0.00 0.03 0.00 -0.00
26 3.3368 0.00 -0.07 0.00 -0.04
27 7.1270 0.00 0.23 0.00 -0.30
28 7.1270 0.00 -0.07 0.00 0.11
29 7.1271 0.00 -0.28 0.00 0.01
30 7.1570 0.00 -0.20 0.00 -0.13
31 7.1570 0.00 0.06 0.00 0.09
32 7.1571 0.00 0.24 0.00 0.20
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.
14RL74 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 47.127 47.126 47.127 ecceobj 0.203 0.203 0.203 incobj 30.243 30.243 30.243 qmin 35.641 35.613 35.594 qmax 58.502 58.538 58.443 amean 46.834 46.833 46.834 amin 46.438 46.431 46.428 amax 47.296 47.323 47.312 emean 0.218 0.218 0.218 emin 0.201 0.201 0.201 emax 0.237 0.237 0.237 imean 28.929 28.929 28.929 imin 28.437 28.436 28.429 imax 29.352 29.354 29.348 excite_mean 0.531 0.531 0.531 fracstop 1.000 1.000 1.000 cjmean 2.773 2.773 2.773 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 171.2 171.3 171.5 kozaiamp 180.0 180.0 179.9