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: 14SR404 # Created Fri Nov 22 02:10:03 2024 # Orbit generated from Bernstein formalism # Fitting 15 observations of 15 # Arc: 3.07y # First observation: 2014/09/26 # Last observation: 2017/10/21 Preliminary a, adot, b, bdot, g, gdot: 0.000034 0.020368 -0.000046 0.005557 0.022635 0.000000 # Chi-squared of fit: 6.46 DOF: 24 RMS: 0.12 # Min/Max residuals: -0.28 0.29 # Exact a, adot, b, bdot, g, gdot: 1.336150E-05 2.031611E-02 3.951078E-06 5.524574E-03 2.249821E-02 -3.525939E-03 # Covariance matrix: 2.8003E-13 -3.3083E-13 6.0912E-15 -8.9828E-14 2.1802E-13 -4.4633E-12 -3.3083E-13 9.3707E-13 -7.6214E-14 3.1447E-13 -1.8680E-13 1.5871E-11 6.0912E-15 -7.6214E-14 2.3263E-13 -1.1981E-13 -2.1920E-13 -1.3070E-12 -8.9828E-14 3.1447E-13 -1.1981E-13 2.0328E-13 -1.1625E-13 5.8888E-12 2.1802E-13 -1.8680E-13 -2.1920E-13 -1.1625E-13 2.6669E-12 -4.7603E-12 -4.4633E-12 1.5871E-11 -1.3070E-12 5.8888E-12 -4.7603E-12 2.9666E-10 # lat0 lon0 xBary yBary zBary JD0 -27.641003 -48.669245 -0.784571 -0.291352 -0.556644 2456926.593968 # Heliocentric elements and errors Epoch: 2456920.5000 = 2014/09/20 Mean Anomaly: 286.75970 +/- 0.074 Argument of Peri: 28.03799 +/- 0.090 Long of Asc Node: 10.76948 +/- 0.001 Inclination: 31.20236 +/- 0.000 Eccentricity: 0.14871502 +/- 0.0008 Semi-Major Axis: 46.00335602 +/- 0.0148 Time of Perihelion: 2480106.7386 +/- 20.6 Perihelion: 39.16196598 +/- 0.0393 Aphelion: 52.84474605 +/- 0.0409 Period (y) 312.0272 +/- 0.15 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 27.00571826 +/- 0.0019 Ecliptic Y -29.51921465 +/- 0.0022 Ecliptic Z -20.62061668 +/- 0.0015 Ecliptic XDOT 0.00180679 +/- 0.0000 Ecliptic YDOT 0.00167935 +/- 0.0000 Ecliptic ZDOT 0.00079474 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.01002871 +/- 0.0019 Geocenter to KBO 44.44797872 +/- 0.0032 # Hcoef: 7.19
The following table shows the complete astrometric record for 14SR404. 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 (14SR404) followed by the observatory code and reference code for the source of the astrometry.
2014 09 26.09319 21 35 48.851 -43 39 00.45 23.7i 14SR404 W84 C~55SB 2014 10 22.02688 21 34 29.333 -43 27 48.82 23.5i 14SR404 W84 C~55SB 2014 10 22.14680 21 34 29.099 -43 27 44.19 23.5i 14SR404 W84 C~55SB 2014 10 23.02664 21 34 27.663 -43 27 14.02 23.9r 14SR404 W84 C~55SB 2014 10 23.07954 21 34 27.573 -43 27 11.98 24.3r 14SR404 W84 C~55SB 2014 10 29.02211 21 34 20.058 -43 23 33.40 23.3r 14SR404 W84 C~55SB 2015 09 13.10490 21 42 10.554 -42 57 37.68 23.4i 14SR404 W84 C~55SB 2015 09 13.10626 21 42 10.552 -42 57 37.59 23.8r 14SR404 W84 C~55SB 2015 09 13.10904 21 42 10.538 -42 57 37.71 23.6i 14SR404 W84 C~55SB 2015 09 13.11041 21 42 10.533 -42 57 37.42 23.5r 14SR404 W84 C~55SB 2016 10 22.02362 21 44 53.723 -42 00 07.57 23.7i 14SR404 W84 C~55SB 2016 10 22.02499 21 44 53.709 -42 00 07.12 24.0r 14SR404 W84 C~55SB 2016 10 22.02636 21 44 53.707 -42 00 07.38 24.2g 14SR404 W84 C~55SB 2017 10 13.09607 21 50 22.141 -41 18 57.36 23.6i 14SR404 W84 C~55SB 2017 10 21.00733 21 50 01.565 -41 15 15.16 23.0r 14SR404 W84 C~55SB
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 0.19 0.00 -0.01
2 0.0710 -563.45 -0.07 938.51 -0.20
3 0.0713 -564.16 -0.08 943.75 0.29
4 0.0737 -567.92 -0.07 977.52 -0.15
5 0.0739 -568.10 -0.01 979.78 0.01
6 0.0902 -566.02 0.01 1213.18 0.03
7 0.9638 4791.80 -0.06 755.09 0.00
8 0.9638 4791.82 0.02 755.18 0.06
9 0.9638 4791.63 -0.02 755.13 -0.07
10 0.9638 4791.69 0.11 755.42 0.18
11 2.0724 7787.70 -0.00 3248.18 -0.28
12 2.0724 7787.73 0.04 3248.66 0.15
13 2.0724 7787.61 -0.07 3248.43 -0.14
14 3.0472 12156.26 -0.05 4064.97 0.12
15 3.0689 12033.03 0.06 4362.25 0.01
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.
14SR404 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.186 46.228 46.145 ecceobj 0.152 0.153 0.151 incobj 31.163 31.163 31.163 qmin 38.415 38.485 38.383 qmax 54.427 54.510 54.394 amean 46.241 46.282 46.183 amin 45.856 45.895 45.796 amax 46.666 46.714 46.632 emean 0.152 0.153 0.151 emin 0.138 0.139 0.136 emax 0.167 0.168 0.167 imean 31.269 31.267 31.269 imin 30.985 30.973 30.987 imax 31.593 31.597 31.613 excite_mean 0.541 0.541 0.541 fracstop 1.000 1.000 1.000 cjmean 2.745 2.745 2.745 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 178.5 178.1 181.1 kozaiamp 179.9 179.9 180.0