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: 14SC374 # Created Sun Dec 22 02:10:03 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 25 observations of 25 # Arc: 7.18y # First observation: 2014/09/25 # Last observation: 2021/12/01 # Chi-squared of fit: 19.93 DOF: 44 RMS: 0.16 # Min/Max residuals: -0.48 0.25 # Exact a, adot, b, bdot, g, gdot: 1.368371E-05 2.869574E-02 -8.097843E-06 -1.462978E-02 3.103095E-02 9.247736E-04 # Covariance matrix: 4.7299E-13 -1.5850E-13 -1.0136E-13 7.4882E-14 1.3856E-13 -6.3332E-13 -1.5850E-13 1.4598E-13 9.8551E-14 -7.5159E-14 1.1870E-13 6.3410E-13 -1.0136E-13 9.8551E-14 2.7604E-13 -9.5212E-14 6.5030E-14 4.6913E-13 7.4882E-14 -7.5159E-14 -9.5212E-14 5.3107E-14 -5.3150E-14 -3.5667E-13 1.3856E-13 1.1870E-13 6.5030E-14 -5.3150E-14 4.6084E-13 4.4613E-13 -6.3332E-13 6.3410E-13 4.6913E-13 -3.5667E-13 4.4613E-13 3.0099E-12 # lat0 lon0 xBary yBary zBary JD0 -21.113183 31.367790 0.495348 -0.314995 -0.816209 2456925.780748 # Heliocentric elements and errors Epoch: 2456926.5000 = 2014/09/26 Mean Anomaly: 174.24779 +/- 0.033 Argument of Peri: 43.94877 +/- 0.028 Long of Asc Node: 176.32240 +/- 0.000 Inclination: 33.76858 +/- 0.000 Eccentricity: 0.09808084 +/- 0.0001 Semi-Major Axis: 30.10551797 +/- 0.0020 Time of Perihelion: 2427723.1711 +/- 6.3 Perihelion: 27.15274355 +/- 0.0024 Aphelion: 33.05829239 +/- 0.0027 Period (y) 165.1876 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 26.67087168 +/- 0.0006 Ecliptic Y 15.68258580 +/- 0.0003 Ecliptic Z -11.60840850 +/- 0.0003 Ecliptic XDOT -0.00165454 +/- 0.0000 Ecliptic YDOT 0.00195478 +/- 0.0000 Ecliptic ZDOT -0.00123341 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.04593361 +/- 0.0005 Geocenter to KBO 32.22590697 +/- 0.0007 # Hcoef: 8.04
The following table shows the complete astrometric record for 14SC374. 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 (14SC374) followed by the observatory code and reference code for the source of the astrometry.
2014 09 25.27997 02 25 53.34 -07 53 36.6 22.9i 14SC374 W84 C~3cns 2014 09 30.26875 02 25 30.231 -07 57 58.14 23.4g 14SC374 W84 C~4yUY 2015 10 23.29970 02 30 53.057 -08 29 17.03 24.1g 14SC374 W84 C~4yUY 2015 12 14.17444 02 26 14.672 -08 46 37.29 23.2r 14SC374 W84 C~4yUY 2015 12 14.17582 02 26 14.661 -08 46 37.23 23.2i 14SC374 W84 C~4yUY 2016 09 24.30754 02 40 42.022 -08 19 14.66 23.4r 14SC374 W84 C~4yUY 2016 10 28.21327 02 37 45.487 -08 46 02.17 23.7g 14SC374 W84 C~4yUY 2016 11 25.19103 02 35 03.731 -08 58 19.41 23.5r 14SC374 W84 C~4yUY 2016 11 25.19239 02 35 03.716 -08 58 19.35 23.3g 14SC374 W84 C~4yUY 2016 12 23.04317 02 32 59.901 -08 58 29.14 23.2i 14SC374 W84 C~4yUY 2017 10 21.23130 02 45 52.703 -08 53 37.35 23.6g 14SC374 W84 C~4yUY 2017 11 01.16823 02 44 49.064 -09 00 48.93 22.8z 14SC374 W84 C~4yUY 2017 11 25.14615 02 42 29.323 -09 10 55.07 22.8i 14SC374 W84 C~4yUY 2017 12 08.12578 02 41 22.361 -09 12 38.36 23.6r 14SC374 W84 C~4yUY 2017 12 09.11526 02 41 17.685 -09 12 39.92 23.8g 14SC374 W84 C~4yUY 2018 11 15.27555 02 50 52.399 -09 19 44.69 22.9i 14SC374 W84 C~4yUY 2018 11 15.27693 02 50 52.382 -09 19 44.73 23.1r 14SC374 W84 C~4yUY 2018 11 15.27830 02 50 52.367 -09 19 44.51 23.4g 14SC374 W84 C~4yUY 2020 10 20.393000 03 08 14.652 -09 27 00.00 23.1G 14SC374 G37 C~4Kxe 2020 10 20.434430 03 08 14.436 -09 27 01.93 14SC374 G37 C~4Kxe 2021 12 01.28569 03 11 38.416 -09 57 02.29 14SC374 304 c~5S30 2021 12 01.28940 03 11 38.401 -09 57 02.34 14SC374 304 c~5S30 2021 12 01.29259 03 11 38.371 -09 57 02.29 14SC374 304 c~5S30 2021 12 01.29582 03 11 38.338 -09 57 02.34 14SC374 304 c~5S30 2021 12 01.31304 03 11 38.236 -09 57 02.50 14SC374 304 c~5S30
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 0.14 0.00 0.19
2 0.0137 0.00 0.07 0.00 0.18
3 1.0760 0.00 -0.32 0.00 0.20
4 1.2181 0.00 0.09 0.00 0.02
5 1.2181 0.00 0.01 0.00 0.07
6 1.9987 0.00 0.09 0.00 0.06
7 2.0915 0.00 -0.03 0.00 0.01
8 2.1681 0.00 0.02 0.00 -0.10
9 2.1681 0.00 -0.09 0.00 -0.02
10 2.2444 0.00 0.24 0.00 -0.04
11 3.0717 0.00 -0.05 0.00 0.16
12 3.1017 0.00 0.03 0.00 0.01
13 3.1673 0.00 0.12 0.00 -0.22
14 3.2029 0.00 -0.01 0.00 -0.05
15 3.2056 0.00 -0.15 0.00 -0.48
16 4.1396 0.00 0.10 0.00 -0.17
17 4.1396 0.00 -0.03 0.00 -0.18
18 4.1396 0.00 -0.14 0.00 0.08
19 6.0701 0.00 -0.14 0.00 -0.21
20 6.0702 0.00 0.09 0.00 -0.28
21 7.1841 0.00 0.15 0.00 0.13
22 7.1841 0.00 0.25 0.00 0.12
23 7.1842 0.00 0.07 0.00 0.20
24 7.1842 0.00 -0.15 0.00 0.18
25 7.1842 0.00 -0.21 0.00 0.18
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.
14SC374 quality flag:3 Type: 1:1 1:1 1:1 axisobj 30.251 30.251 30.251 ecceobj 0.094 0.094 0.094 incobj 33.651 33.651 33.651 qmin 26.159 26.159 26.159 qmax 34.164 34.164 34.163 amean 30.108 30.108 30.108 amin 29.897 29.897 29.897 amax 30.324 30.324 30.324 emean 0.091 0.091 0.091 emin 0.058 0.058 0.058 emax 0.129 0.129 0.129 imean 33.154 33.154 33.154 imin 32.896 32.896 32.896 imax 33.383 33.383 33.383 excite_mean 0.555 0.555 0.555 fracstop 1.000 1.000 1.000 cjmean 2.668 2.668 2.668 libcent 0 58.3 58.3 58.3 libamp 0 4.8 4.8 4.8 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 175.4 175.4 175.4 kozaiamp 179.9 179.9 179.9