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: 16QN134 # Created Mon Jul 7 01:11:11 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 21 observations of 21 # Arc: 5.01y # First observation: 2013/10/13 # Last observation: 2018/10/18 # Chi-squared of fit: 9.87 DOF: 36 RMS: 0.12 # Min/Max residuals: -0.22 0.29 # Exact a, adot, b, bdot, g, gdot: 1.639595E-05 2.873412E-02 -1.251325E-06 -1.483511E-03 2.682152E-02 -2.805880E-03 # Covariance matrix: 6.4011E-13 -3.4489E-13 -7.2045E-15 1.0441E-14 -6.0628E-14 -1.4752E-12 -3.4489E-13 3.9030E-13 1.0980E-14 -1.8051E-14 2.7192E-13 2.5639E-12 -7.2045E-15 1.0980E-14 4.8909E-13 -1.3080E-13 6.0021E-15 7.8124E-14 1.0441E-14 -1.8051E-14 -1.3080E-13 4.1310E-14 -1.7421E-14 -1.3536E-13 -6.0628E-14 2.7192E-13 6.0021E-15 -1.7421E-14 7.8255E-13 2.5160E-12 -1.4752E-12 2.5639E-12 7.8124E-14 -1.3536E-13 2.5160E-12 1.9265E-11 # lat0 lon0 xBary yBary zBary JD0 -5.075678 9.632054 -0.174372 -0.086760 -0.978195 2456578.713688 # Heliocentric elements and errors Epoch: 2456578.5000 = 2013/10/13 Mean Anomaly: 328.70672 +/- 0.031 Argument of Peri: 281.90976 +/- 0.045 Long of Asc Node: 130.56853 +/- 0.004 Inclination: 5.74495 +/- 0.000 Eccentricity: 0.15728065 +/- 0.0002 Semi-Major Axis: 43.78541528 +/- 0.0069 Time of Perihelion: 2465777.5141 +/- 24.7 Perihelion: 36.89881683 +/- 0.0090 Aphelion: 50.67201373 +/- 0.0105 Period (y) 289.7360 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.55216428 +/- 0.0012 Ecliptic Y 6.55308135 +/- 0.0002 Ecliptic Z -3.29861220 +/- 0.0001 Ecliptic XDOT -0.00079141 +/- 0.0000 Ecliptic YDOT 0.00284031 +/- 0.0000 Ecliptic ZDOT -0.00012536 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.26216602 +/- 0.0012 Geocenter to KBO 37.28359213 +/- 0.0012 # Hcoef: 7.90
The following table shows the complete astrometric record for 16QN134. 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 (16QN134) followed by the observatory code and reference code for the source of the astrometry.
2013 10 13.21291 00 43 22.400 -00 51 08.46 23.5i 16QN134 W84 C~52ZY 2013 10 13.21708 00 43 22.379 -00 51 08.76 23.3z 16QN134 W84 C~52ZY 2014 11 13.13256 00 47 21.533 -00 29 35.79 24.0r 16QN134 W84 C~52ZY 2016 08 30.35544 01 05 17.404 +01 14 09.00 23.9r 16QN134 W84 C~52ZY 2016 10 29.21651 01 00 47.058 +00 44 03.24 24.0r 16QN134 W84 C~52ZY 2016 10 29.21788 01 00 47.060 +00 44 03.17 23.3i 16QN134 W84 C~52ZY 2016 10 29.22062 01 00 47.044 +00 44 03.06 23.8r 16QN134 W84 C~52ZY 2016 11 06.20111 01 00 12.123 +00 40 52.43 23.1i 16QN134 W84 C~52ZY 2016 11 06.20249 01 00 12.117 +00 40 52.32 24.2r 16QN134 W84 C~52ZY 2016 11 08.12026 01 00 04.175 +00 40 10.57 22.9z 16QN134 W84 C~52ZY 2017 08 22.34106 01 11 58.502 +01 52 05.58 23.7i 16QN134 W84 C~52ZY 2017 08 22.34244 01 11 58.483 +01 52 05.71 23.3r 16QN134 W84 C~52ZY 2017 09 13.42921 01 10 40.94 +01 41 47.2 23.7y 16QN134 T09 C~8vIH 2017 09 13.43189 01 10 40.92 +01 41 47.2 23.8y 16QN134 T09 C~8vIH 2017 09 13.46966 01 10 40.75 +01 41 45.7 23.3y 16QN134 T09 C~8vIH 2017 09 13.51048 01 10 40.58 +01 41 44.4 23.4y 16QN134 T09 C~8vIH 2017 09 18.28318 01 10 20.102 +01 39 16.74 23.3i 16QN134 W84 C~52ZY 2017 09 18.28456 01 10 20.094 +01 39 16.70 23.5r 16QN134 W84 C~52ZY 2017 09 27.23909 01 09 39.206 +01 34 33.48 23.2z 16QN134 W84 C~52ZY 2018 09 14.34976 01 16 57.115 +02 16 00.30 23.5r 16QN134 W84 C~52ZY 2018 10 18.20459 01 14 18.180 +01 58 30.55 23.1z 16QN134 W84 C~52ZY
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 0.07 0.00 0.12
2 0.0000 0.00 0.06 0.00 -0.06
3 1.0840 0.00 -0.21 0.00 -0.08
4 2.8806 0.00 0.04 0.00 0.00
5 3.0445 0.00 -0.06 0.00 0.03
6 3.0445 0.00 0.07 0.00 -0.01
7 3.0445 0.00 0.02 0.00 -0.05
8 3.0664 0.00 0.05 0.00 0.03
9 3.0664 0.00 0.04 0.00 -0.05
10 3.0716 0.00 0.04 0.00 -0.14
11 3.8580 0.00 0.17 0.00 0.01
12 3.8580 0.00 -0.06 0.00 0.18
13 3.9185 0.00 0.05 0.00 0.20
14 3.9185 0.00 -0.08 0.00 0.29
15 3.9186 0.00 -0.22 0.00 -0.06
16 3.9187 0.00 -0.15 0.00 -0.11
17 3.9317 0.00 0.05 0.00 -0.03
18 3.9317 0.00 0.02 0.00 -0.03
19 3.9563 0.00 0.18 0.00 0.02
20 4.9203 0.00 -0.22 0.00 -0.22
21 5.0130 0.00 0.27 0.00 0.02
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.
16QN134 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE axisobj 44.050 44.050 44.050 ecceobj 0.160 0.160 0.160 incobj 5.738 5.738 5.738 qmin 36.077 36.080 36.074 qmax 51.860 51.857 51.860 amean 43.727 43.727 43.727 amin 43.271 43.271 43.271 amax 44.230 44.226 44.229 emean 0.156 0.156 0.156 emin 0.138 0.138 0.139 emax 0.173 0.173 0.173 imean 4.054 4.052 4.057 imin 2.944 2.939 2.948 imax 5.374 5.373 5.374 excite_mean 0.172 0.172 0.172 fracstop 1.000 1.000 1.000 cjmean 3.063 3.063 3.063 libcent 0 177.9 179.1 178.7 libamp 0 106.8 105.8 106.4 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 174.7 174.8 174.8 kozaiamp 180.0 180.0 179.9