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: 14RO74 # Created Sun Dec 22 02:10:01 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 39 observations of 39 # Arc: 8.25y # First observation: 2014/09/04 # Last observation: 2022/12/03 # Chi-squared of fit: 11.94 DOF: 72 RMS: 0.10 # Min/Max residuals: -0.29 0.25 # Exact a, adot, b, bdot, g, gdot: 1.686863E-05 3.546838E-02 -4.500476E-06 -9.791548E-03 3.305474E-02 2.547086E-03 # Covariance matrix: 2.3822E-13 -5.8615E-14 -1.1478E-14 1.6620E-14 1.1080E-13 -1.9753E-13 -5.8615E-14 5.9473E-14 2.1339E-14 -1.7556E-14 2.9938E-14 1.9617E-13 -1.1478E-14 2.1339E-14 9.9197E-14 -2.1550E-14 1.7944E-14 7.3628E-14 1.6620E-14 -1.7556E-14 -2.1550E-14 9.7789E-15 -6.2232E-15 -6.3280E-14 1.1080E-13 2.9938E-14 1.7944E-14 -6.2232E-15 1.7618E-13 5.5473E-14 -1.9753E-13 1.9617E-13 7.3628E-14 -6.3280E-14 5.5473E-14 7.1155E-13 # lat0 lon0 xBary yBary zBary JD0 -25.648627 29.743961 0.754343 -0.291341 -0.607094 2456904.841048 # Heliocentric elements and errors Epoch: 2456904.5000 = 2014/09/04 Mean Anomaly: 120.96735 +/- 0.045 Argument of Peri: 113.62536 +/- 0.041 Long of Asc Node: 152.53331 +/- 0.000 Inclination: 29.56480 +/- 0.000 Eccentricity: 0.04935790 +/- 0.0000 Semi-Major Axis: 30.05411023 +/- 0.0014 Time of Perihelion: 2436682.6953 +/- 7.6 Perihelion: 28.57070257 +/- 0.0015 Aphelion: 31.53751790 +/- 0.0016 Period (y) 164.7646 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.63514567 +/- 0.0003 Ecliptic Y 13.21123911 +/- 0.0002 Ecliptic Z -13.09512091 +/- 0.0002 Ecliptic XDOT -0.00160196 +/- 0.0000 Ecliptic YDOT 0.00246649 +/- 0.0000 Ecliptic ZDOT -0.00082230 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 30.86920925 +/- 0.0003 Geocenter to KBO 30.25284598 +/- 0.0004 # Hcoef: 8.19
The following table shows the complete astrometric record for 14RO74. 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 (14RO74) followed by the observatory code and reference code for the source of the astrometry.
2014 09 04.34027 02 26 37.91 -12 39 50.0 24.0g 14RO74 W84 C~3cnV 2014 09 04.34164 02 26 37.897 -12 39 50.07 23.3r 14RO74 W84 C~4yUF 2014 09 27.27665 02 25 08.860 -13 02 29.15 23.1r 14RO74 W84 C~4yUF 2014 10 03.38384 02 24 37.454 -13 08 03.40 22.9i 14RO74 W84 C~4yUF 2014 10 29.31250 02 22 03.094 -13 27 13.56 23.3r 14RO74 W84 C~4yUF 2014 11 28.22773 02 19 03.957 -13 36 16.05 23.1r 14RO74 W84 C~4yUF 2014 11 28.22911 02 19 03.957 -13 36 16.20 24.3g 14RO74 W84 C~4yUF 2014 12 27.11787 02 17 06.414 -13 29 18.07 22.5z 14RO74 W84 C~4yUF 2015 12 04.20129 02 27 13.098 -13 24 59.04 22.9r 14RO74 W84 C~4yUF 2015 12 04.20266 02 27 13.093 -13 24 58.97 23.0i 14RO74 W84 C~4yUF 2016 09 11.40594 02 43 23.545 -12 22 26.49 23.3i 14RO74 W84 C~4yUF 2016 09 23.32842 02 42 39.392 -12 34 14.28 23.4r 14RO74 W84 C~4yUF 2016 09 25.25649 02 42 30.969 -12 36 05.57 23.5g 14RO74 W84 C~4yUF 2016 10 06.22167 02 41 37.13 -12 46 08.8 24.0V 14RO74 W84 C~5ipy 2016 10 06.35279 02 41 36.42 -12 46 15.6 14RO74 W84 C~5ipy 2016 10 21.27377 02 40 10.637 -12 58 02.20 21.9z 14RO74 W84 C~4yUF 2016 11 19.16214 02 37 10.316 -13 11 38.41 22.9i 14RO74 W84 C~4yUF 2016 11 25.14540 02 36 34.910 -13 12 37.53 22.5r 14RO74 W84 C~4yUF 2016 11 25.14678 02 36 34.905 -13 12 37.73 23.9g 14RO74 W84 C~4yUF 2016 12 02.15096 02 35 55.915 -13 12 54.42 23.2r 14RO74 W84 C~4yUF 2016 12 02.15235 02 35 55.903 -13 12 54.55 22.6i 14RO74 W84 C~4yUF 2016 12 02.15373 02 35 55.892 -13 12 54.48 24.0g 14RO74 W84 C~4yUF 2017 10 30.30701 02 47 52.185 -12 49 58.49 22.9i 14RO74 W84 C~4yUF 2017 10 30.30839 02 47 52.190 -12 49 58.68 23.2r 14RO74 W84 C~4yUF 2018 01 16.10243 02 41 55.677 -12 41 21.66 22.3r 14RO74 W84 C~4yUF 2018 10 19.31082 02 57 34.151 -12 27 45.05 23.0r 14RO74 W84 C~4yUF 2018 10 20.34387 02 57 28.093 -12 28 31.19 23.7i 14RO74 W84 C~4yUF 2018 10 20.34524 02 57 28.077 -12 28 31.30 23.9g 14RO74 W84 C~4yUF 2021 01 11.116600 03 07 06.044 -12 01 03.69 23.4G 14RO74 G37 C~4UDj 2021 01 11.174850 03 07 05.895 -12 01 01.36 14RO74 G37 C~4UDj 2022 12 03.205532 03 26 47.291 -11 39 22.47 23.3r 14RO74 304 C~7Mkj 2022 12 03.210104 03 26 47.260 -11 39 22.71 22.0z 14RO74 304 C~7Mkj 2022 12 03.212685 03 26 47.248 -11 39 22.50 23.4r 14RO74 304 C~7Mkj 2022 12 03.214763 03 26 47.241 -11 39 22.67 22.9i 14RO74 304 C~7Mkj 2022 12 03.219768 03 26 47.195 -11 39 22.57 23.2r 14RO74 304 C~7Mkj 2022 12 03.224479 03 26 47.172 -11 39 22.55 21.9z 14RO74 304 C~7Mkj 2022 12 03.226782 03 26 47.160 -11 39 22.58 23.3r 14RO74 304 C~7Mkj 2022 12 03.228791 03 26 47.145 -11 39 22.58 22.9i 14RO74 304 C~7Mkj 2022 12 03.231273 03 26 47.137 -11 39 22.57 22.0z 14RO74 304 C~7Mkj
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 -0.03
2 0.0000 0.00 -0.10 0.00 -0.02
3 0.0628 0.00 -0.13 0.00 -0.06
4 0.0795 0.00 0.07 0.00 0.11
5 0.1505 0.00 -0.08 0.00 0.16
6 0.2324 0.00 0.01 0.00 0.01
7 0.2324 0.00 0.12 0.00 -0.14
8 0.3115 0.00 -0.00 0.00 0.05
9 1.2481 0.00 0.05 0.00 -0.06
10 1.2481 0.00 0.08 0.00 0.01
11 2.0207 0.00 -0.17 0.00 0.09
12 2.0534 0.00 0.07 0.00 0.00
13 2.0586 0.00 0.06 0.00 -0.10
14 2.0887 0.00 -0.00 0.00 0.08
15 2.0890 0.00 0.03 0.00 0.13
16 2.1299 0.00 0.25 0.00 0.16
17 2.2090 0.00 0.15 0.00 0.16
18 2.2253 0.00 -0.23 0.00 -0.10
19 2.2253 0.00 -0.18 0.00 -0.29
20 2.2445 0.00 0.08 0.00 0.03
21 2.2445 0.00 0.01 0.00 -0.10
22 2.2445 0.00 -0.04 0.00 -0.03
23 3.1539 0.00 -0.05 0.00 0.08
24 3.1539 0.00 0.16 0.00 -0.07
25 3.3669 0.00 0.02 0.00 -0.06
26 4.1231 0.00 -0.03 0.00 0.07
27 4.1260 0.00 0.06 0.00 -0.03
28 4.1260 0.00 -0.06 0.00 -0.08
29 6.3539 0.00 0.04 0.00 0.11
30 6.3541 0.00 -0.10 0.00 0.11
31 8.2460 0.00 0.00 0.00 0.05
32 8.2461 0.00 -0.04 0.00 -0.18
33 8.2461 0.00 0.02 0.00 0.04
34 8.2461 0.00 0.11 0.00 -0.13
35 8.2461 0.00 -0.12 0.00 -0.01
36 8.2461 0.00 -0.03 0.00 0.03
37 8.2461 0.00 0.00 0.00 0.00
38 8.2461 0.00 -0.04 0.00 0.01
39 8.2461 0.00 0.07 0.00 0.03
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.
14RO74 quality flag:3 Type: 1:1 1:1 1:1 axisobj 30.224 30.224 30.224 ecceobj 0.050 0.050 0.050 incobj 29.502 29.502 29.502 qmin 27.163 27.163 27.163 qmax 33.142 33.143 33.142 amean 30.109 30.109 30.109 amin 29.859 29.859 29.859 amax 30.368 30.368 30.368 emean 0.067 0.067 0.067 emin 0.040 0.040 0.040 emax 0.094 0.094 0.094 imean 28.323 28.323 28.323 imin 28.102 28.102 28.102 imax 28.566 28.566 28.566 excite_mean 0.479 0.479 0.479 fracstop 1.000 1.000 1.000 cjmean 2.756 2.756 2.756 libcent 0 59.3 59.3 59.3 libamp 0 11.9 11.9 11.9 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 176.7 176.7 176.7 kozaiamp 180.0 180.0 180.0