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: 14XB48 # Created Sun Dec 22 02:10:13 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 33 observations of 33 # Arc: 7.04y # First observation: 2014/10/27 # Last observation: 2021/11/11 # Chi-squared of fit: 11.92 DOF: 60 RMS: 0.11 # Min/Max residuals: -0.35 0.27 # Exact a, adot, b, bdot, g, gdot: 2.018154E-05 3.515227E-02 -2.135251E-06 -3.594170E-03 2.836990E-02 -7.292923E-03 # Covariance matrix: 2.3901E-13 -9.5280E-14 -2.1464E-14 7.0791E-15 6.3377E-14 -2.5965E-13 -9.5280E-14 7.5290E-14 5.8629E-15 -6.2610E-15 1.4442E-14 2.6620E-13 -2.1464E-14 5.8629E-15 1.4150E-13 -2.8808E-14 -3.1752E-14 1.9660E-14 7.0791E-15 -6.2610E-15 -2.8808E-14 9.1001E-15 2.7297E-16 -2.4770E-14 6.3377E-14 1.4442E-14 -3.1752E-14 2.7297E-16 1.6860E-13 7.6127E-14 -2.5965E-13 2.6620E-13 1.9660E-14 -2.4770E-14 7.6127E-14 1.0630E-12 # lat0 lon0 xBary yBary zBary JD0 -28.509355 28.801473 -0.081124 -0.473371 -0.871894 2456957.826498 # Heliocentric elements and errors Epoch: 2456958.5000 = 2014/10/28 Mean Anomaly: 349.83361 +/- 0.002 Argument of Peri: 294.44563 +/- 0.005 Long of Asc Node: 130.96647 +/- 0.000 Inclination: 28.28589 +/- 0.000 Eccentricity: 0.51139543 +/- 0.0001 Semi-Major Axis: 69.39036531 +/- 0.0096 Time of Perihelion: 2462920.7672 +/- 42.5 Perihelion: 33.90444940 +/- 0.0063 Aphelion: 104.87628123 +/- 0.0151 Period (y) 578.0388 +/- 0.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 27.97000196 +/- 0.0004 Ecliptic Y 15.47355874 +/- 0.0002 Ecliptic Z -16.82437045 +/- 0.0002 Ecliptic XDOT -0.00232583 +/- 0.0000 Ecliptic YDOT 0.00259018 +/- 0.0000 Ecliptic ZDOT 0.00003124 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.12231740 +/- 0.0003 Geocenter to KBO 35.24880135 +/- 0.0005 # Hcoef: 7.22
The following table shows the complete astrometric record for 14XB48. 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 (14XB48) followed by the observatory code and reference code for the source of the astrometry.
2014 10 27.32572 02 27 37.406 -15 38 07.48 23.5g 14XB48 W84 C~4yVS 2014 12 12.19842 02 23 56.56 -15 41 54.6 22.1i 14XB48 W84 C~3cpY 2014 12 15.18670 02 23 46.070 -15 40 56.70 23.7g 14XB48 W84 C~4yVS 2014 12 15.19384 02 23 46.024 -15 40 56.64 22.6i 14XB48 W84 C~4yVS 2014 12 16.17957 02 23 42.743 -15 40 35.72 22.8r 14XB48 W84 C~4yVS 2014 12 24.16741 02 23 19.190 -15 37 11.63 23.2r 14XB48 W84 C~4yVS 2015 01 08.12240 02 22 51.886 -15 28 19.66 22.7z 14XB48 W84 C~4yVS 2016 08 29.41062 02 47 32.360 -13 48 01.35 22.6i 14XB48 W84 C~4yVS 2016 09 25.25510 02 46 25.192 -14 10 14.56 23.5g 14XB48 W84 C~4yVS 2016 11 19.16351 02 41 53.265 -14 37 55.49 22.3z 14XB48 W84 C~4yVS 2016 12 02.12613 02 40 49.184 -14 38 01.44 23.0r 14XB48 W84 C~4yVS 2016 12 02.12749 02 40 49.177 -14 38 01.40 22.6i 14XB48 W84 C~4yVS 2016 12 02.12886 02 40 49.165 -14 38 01.37 23.8g 14XB48 W84 C~4yVS 2017 10 21.28416 02 52 44.400 -13 51 52.11 22.5r 14XB48 W84 C~4yVS 2017 10 21.28553 02 52 44.395 -13 51 52.11 22.7i 14XB48 W84 C~4yVS 2017 10 21.28691 02 52 44.381 -13 51 52.31 23.8g 14XB48 W84 C~4yVS 2018 01 09.12005 02 46 55.962 -13 47 52.11 22.8r 14XB48 W84 C~4yVS 2018 01 09.12142 02 46 55.963 -13 47 52.03 22.6i 14XB48 W84 C~4yVS 2018 01 09.12279 02 46 55.959 -13 47 52.12 23.5g 14XB48 W84 C~4yVS 2018 01 16.10243 02 46 47.513 -13 42 51.48 22.5r 14XB48 W84 C~4yVS 2018 01 16.10379 02 46 47.510 -13 42 51.41 22.4i 14XB48 W84 C~4yVS 2018 01 16.10517 02 46 47.519 -13 42 51.57 22.9g 14XB48 W84 C~4yVS 2018 10 28.32860 03 00 28.392 -13 17 57.83 22.0z 14XB48 W84 C~4yVS 2018 11 07.31226 02 59 34.324 -13 22 09.71 22.6r 14XB48 W84 C~4yVS 2018 11 07.31365 02 59 34.320 -13 22 09.80 22.7i 14XB48 W84 C~4yVS 2020 10 20.48248 03 17 54.879 -11 54 33.69 22.6w 14XB48 F51 C~4A5c 2020 10 20.49652 03 17 54.827 -11 54 34.08 22.6w 14XB48 F51 C~4A5c 2020 10 20.52470 03 17 54.687 -11 54 35.27 22.8w 14XB48 F51 C~4A5c 2021 01 11.125480 03 11 32.933 -11 53 14.10 22.2G 14XB48 G37 C~4UFe 2021 01 11.190430 03 11 32.792 -11 53 12.00 14XB48 G37 C~4UFe 2021 11 11.406954 03 24 28.851 -11 22 59.07 22.5w 14XB48 F51 C~5BVW 2021 11 11.432714 03 24 28.716 -11 22 59.29 22.8w 14XB48 F51 C~5BVW 2021 11 11.445624 03 24 28.629 -11 22 59.85 22.5w 14XB48 F51 C~5BVW
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 -0.13 0.00 -0.02
2 0.1256 0.00 0.01 0.00 0.11
3 0.1338 0.00 0.07 0.00 0.16
4 0.1338 0.00 -0.25 0.00 0.07
5 0.1365 0.00 0.01 0.00 0.00
6 0.1584 0.00 0.17 0.00 0.03
7 0.1993 0.00 -0.03 0.00 -0.06
8 1.8401 0.00 -0.03 0.00 -0.11
9 1.9136 0.00 -0.05 0.00 0.02
10 2.0639 0.00 0.09 0.00 -0.02
11 2.0994 0.00 0.05 0.00 -0.01
12 2.0994 0.00 0.04 0.00 0.03
13 2.0994 0.00 -0.04 0.00 0.05
14 2.9841 0.00 0.06 0.00 0.05
15 2.9841 0.00 0.10 0.00 0.10
16 2.9842 0.00 -0.01 0.00 -0.06
17 3.2027 0.00 0.01 0.00 -0.01
18 3.2027 0.00 0.06 0.00 0.01
19 3.2027 0.00 0.03 0.00 -0.13
20 3.2218 0.00 0.01 0.00 -0.02
21 3.2218 0.00 -0.02 0.00 -0.01
22 3.2218 0.00 0.13 0.00 -0.24
23 4.0027 0.00 -0.02 0.00 -0.10
24 4.0301 0.00 0.02 0.00 0.05
25 4.0301 0.00 0.07 0.00 -0.01
26 5.9826 0.00 -0.18 0.00 0.04
27 5.9827 0.00 0.10 0.00 0.15
28 5.9827 0.00 0.12 0.00 -0.03
29 6.2089 0.00 -0.15 0.00 0.12
30 6.2091 0.00 -0.20 0.00 -0.35
31 7.0420 0.00 -0.01 0.00 -0.01
32 7.0420 0.00 0.16 0.00 0.27
33 7.0421 0.00 -0.05 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.
14XB48 quality flag:3 Type: 7:2EEEEE 7:2EEEEE 7:2EEEEE axisobj 70.417 70.416 70.417 ecceobj 0.517 0.517 0.517 incobj 28.266 28.266 28.266 qmin 31.576 31.584 31.567 qmax 109.576 109.636 109.490 amean 69.407 69.408 69.407 amin 68.347 68.345 68.335 amax 70.940 70.936 70.848 emean 0.528 0.528 0.528 emin 0.502 0.502 0.502 emax 0.546 0.546 0.546 imean 25.294 25.298 25.286 imin 24.391 24.395 24.403 imax 26.927 26.927 26.927 excite_mean 0.679 0.679 0.679 fracstop 1.000 1.000 1.000 cjmean 2.765 2.765 2.765 libcent 0 180.0 178.7 177.9 libamp 0 104.5 111.1 108.8 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 244.3 244.0 248.6 kozaiamp 180.0 180.0 180.0