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: 16QX134 # Created Wed May 8 01:17:53 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 16 observations of 16 # Arc: 7.04y # First observation: 2016/08/23 # Last observation: 2023/09/06 # Chi-squared of fit: 3.90 DOF: 26 RMS: 0.09 # Min/Max residuals: -0.22 0.17 # Exact a, adot, b, bdot, g, gdot: 1.437550E-05 2.295094E-02 1.061935E-06 1.454874E-03 2.384176E-02 -2.184346E-03 # Covariance matrix: 3.0489E-13 -1.1382E-13 1.1231E-14 -5.2079E-15 2.4599E-13 -4.8819E-13 -1.1382E-13 3.8128E-13 -3.3131E-15 2.3284E-14 5.1420E-13 2.2095E-12 1.1231E-14 -3.3131E-15 1.5406E-13 -3.4645E-14 2.3362E-14 -2.0505E-14 -5.2079E-15 2.3284E-14 -3.4645E-14 2.0672E-14 3.2790E-14 1.4207E-13 2.4599E-13 5.1420E-13 2.3362E-14 3.2790E-14 1.6886E-12 3.1276E-12 -4.8819E-13 2.2095E-12 -2.0505E-14 1.4207E-13 3.1276E-12 1.3482E-11 # lat0 lon0 xBary yBary zBary JD0 10.524720 -28.238282 0.021202 0.185128 -0.995574 2457623.749899 # Heliocentric elements and errors Epoch: 2457624.5000 = 2016/08/24 Mean Anomaly: 285.38968 +/- 0.067 Argument of Peri: 156.33134 +/- 0.078 Long of Asc Node: 261.14507 +/- 0.002 Inclination: 10.88385 +/- 0.000 Eccentricity: 0.09533707 +/- 0.0002 Semi-Major Axis: 43.66084482 +/- 0.0090 Time of Perihelion: 2479463.5146 +/- 32.5 Perihelion: 39.49834767 +/- 0.0112 Aphelion: 47.82334196 +/- 0.0125 Period (y) 288.5004 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.20850073 +/- 0.0020 Ecliptic Y -20.01143460 +/- 0.0011 Ecliptic Z 7.66138002 +/- 0.0004 Ecliptic XDOT 0.00100434 +/- 0.0000 Ecliptic YDOT 0.00244605 +/- 0.0000 Ecliptic ZDOT 0.00011841 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.93753531 +/- 0.0018 Geocenter to KBO 41.94331385 +/- 0.0023 # Hcoef: 6.67
The following table shows the complete astrometric record for 16QX134. 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 (16QX134) followed by the observatory code and reference code for the source of the astrometry.
2016 08 23.24911 22 00 07.497 -00 59 59.66 23.2z 16QX134 W84 C~55Zc 2016 08 24.21711 22 00 03.198 -01 00 22.84 22.8i 16QX134 W84 C~55Zc 2016 08 25.23502 21 59 58.690 -01 00 47.58 22.8r 16QX134 W84 C~55Zc 2016 09 03.21912 21 59 19.325 -01 04 34.79 24.4g 16QX134 W84 C~55Zc 2016 09 28.03141 21 57 42.926 -01 15 45.43 22.7z 16QX134 W84 C~55Zc 2017 08 21.22380 22 05 06.352 -00 26 45.35 23.1g 16QX134 W84 C~55Zc 2017 09 27.08463 22 02 34.425 -00 43 01.94 22.9i 16QX134 W84 C~55Zc 2017 09 27.08601 22 02 34.426 -00 43 02.00 22.7z 16QX134 W84 C~55Zc 2017 09 27.09014 22 02 34.404 -00 43 02.13 23.1r 16QX134 W84 C~55Zc 2017 10 26.04262 22 01 21.739 -00 55 12.09 22.1z 16QX134 W84 C~55Zc 2018 09 17.21635 22 08 01.611 -00 05 54.31 22.6r 16QX134 W84 C~55Zc 2018 09 17.21772 22 08 01.606 -00 05 54.23 22.6z 16QX134 W84 C~55Zc 2018 09 17.21909 22 08 01.592 -00 05 54.28 22.4i 16QX134 W84 C~55Zc 2018 11 26.02862 22 06 02.835 -00 31 17.35 22.8z 16QX134 W84 C~55Zc 2023 09 06.214320 22 33 23.571 +02 44 19.63 23.0G 16QX134 G37 C~7BOM 2023 09 06.253120 22 33 23.397 +02 44 18.78 16QX134 G37 C~7BOM
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 0.17 0.00 0.04
2 0.0027 0.00 0.08 0.00 0.04
3 0.0054 0.00 0.16 0.00 -0.07
4 0.0300 0.00 -0.22 0.00 -0.16
5 0.0980 0.00 -0.03 0.00 0.09
6 0.9938 0.00 -0.12 0.00 0.03
7 1.0947 0.00 -0.03 0.00 0.04
8 1.0947 0.00 0.06 0.00 0.01
9 1.0947 0.00 -0.05 0.00 -0.00
10 1.1740 0.00 -0.04 0.00 -0.05
11 2.0670 0.00 0.02 0.00 -0.05
12 2.0670 0.00 0.03 0.00 0.06
13 2.0670 0.00 -0.10 0.00 0.05
14 2.2581 0.00 0.10 0.00 0.03
15 7.0362 0.00 -0.00 0.00 -0.12
16 7.0363 0.00 0.00 0.00 0.09
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.
16QX134 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.925 43.925 43.925 ecceobj 0.100 0.100 0.100 incobj 10.905 10.905 10.905 qmin 38.640 38.576 38.621 qmax 49.413 49.430 49.484 amean 43.859 43.859 43.859 amin 43.510 43.505 43.499 amax 44.249 44.255 44.263 emean 0.102 0.102 0.102 emin 0.088 0.087 0.088 emax 0.118 0.118 0.118 imean 12.557 12.557 12.557 imin 11.938 11.930 11.937 imax 13.115 13.117 13.116 excite_mean 0.240 0.240 0.240 fracstop 1.000 1.000 1.000 cjmean 3.029 3.029 3.029 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 182.1 182.2 182.2 kozaiamp 179.9 180.0 179.9