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: 16EZ370 # Created Sun Oct 19 01:11:24 2025 # Orbit generated from Bernstein formalism # Fitting 50 observations of 51 # Arc: 2.05y # First observation: 2015/01/16 # Last observation: 2017/02/02 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.031160 0.000002 0.005463 0.027312 0.000000 # Chi-squared of fit: 33.94 DOF: 94 RMS: 0.15 # Min/Max residuals: -0.43 0.33 # Exact a, adot, b, bdot, g, gdot: 1.875319E-05 3.118157E-02 3.573026E-06 5.464833E-03 2.735933E-02 2.851291E-03 # Covariance matrix: 7.4525E-14 4.4792E-13 -2.7204E-15 6.3556E-14 5.6408E-13 7.2776E-12 4.4792E-13 2.0196E-11 -1.2397E-13 2.6857E-12 2.2245E-11 3.1073E-10 -2.7204E-15 -1.2397E-13 5.9115E-14 -6.1244E-14 -1.3553E-13 -1.9385E-12 6.3556E-14 2.6857E-12 -6.1244E-14 4.2791E-13 2.9580E-12 4.1631E-11 5.6408E-13 2.2245E-11 -1.3553E-13 2.9580E-12 2.4681E-11 3.4188E-10 7.2776E-12 3.1073E-10 -1.9385E-12 4.1631E-11 3.4188E-10 4.8227E-09 # lat0 lon0 xBary yBary zBary JD0 -10.049801 151.325218 0.571584 -0.139141 -0.786048 2457039.036108 # Heliocentric elements and errors Epoch: 2457030.5000 = 2015/01/08 Mean Anomaly: 10.22299 +/- 0.267 Argument of Peri: 294.96666 +/- 0.529 Long of Asc Node: 195.29007 +/- 0.003 Inclination: 13.80805 +/- 0.001 Eccentricity: 0.29115738 +/- 0.0007 Semi-Major Axis: 52.01279708 +/- 0.0073 Time of Perihelion: 2453139.6985 +/- 101.6 Perihelion: 36.86888748 +/- 0.0361 Aphelion: 67.15670669 +/- 0.0369 Period (y) 375.1228 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -32.00526149 +/- 0.0057 Ecliptic Y 18.15395320 +/- 0.0031 Ecliptic Z -6.37812629 +/- 0.0012 Ecliptic XDOT -0.00183136 +/- 0.0000 Ecliptic YDOT -0.00256239 +/- 0.0000 Ecliptic ZDOT 0.00048878 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.34411968 +/- 0.0051 Geocenter to KBO 36.55060851 +/- 0.0066 # Hcoef: 9.21
The following table shows the complete astrometric record for 16EZ370. 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 (16EZ370) followed by the observatory code and reference code for the source of the astrometry.
2015 01 16.53533 09 59 10.79 +01 35 42.2 25.1z 16EZ370 T09 C~93Sq 2015 01 16.54315 09 59 10.77 +01 35 42.6 24.5z 16EZ370 T09 C~93Sq 2015 01 16.54710 09 59 10.75 +01 35 42.2 25.0z 16EZ370 T09 C~93Sq 2015 01 16.58435 09 59 10.59 +01 35 43.1 24.5z 16EZ370 T09 C~93Sq 2015 01 16.59893 09 59 10.53 +01 35 43.2 24.5z 16EZ370 T09 C~93Sq 2015 01 16.60268 09 59 10.52 +01 35 43.1 24.8z 16EZ370 T09 C~93Sq 2015 01 16.60661 09 59 10.51 +01 35 43.2 24.4z 16EZ370 T09 C~93Sq 2015 01 16.61862 09 59 10.45 +01 35 43.4 24.2z 16EZ370 T09 C~93Sq 2015 01 16.64776 09 59 10.33 +01 35 43.9 24.2z 16EZ370 T09 C~93Sq 2015 01 16.66214 09 59 10.28 +01 35 44.3 24.5z 16EZ370 T09 C~93Sq 2015 01 16.66570 09 59 10.28 +01 35 44.1 24.4z 16EZ370 T09 C~93Sq 2015 01 17.37763 09 59 07.35 +01 35 55.7 25.4i 16EZ370 T09 C~93Sq 2015 01 17.38221 09 59 07.34 +01 35 55.5 25.2i 16EZ370 T09 C~93Sq 2015 01 17.38682 09 59 07.33 +01 35 55.5 25.5i 16EZ370 T09 C~93Sq 2015 01 17.39599 09 59 07.29 +01 35 55.7 25.1i 16EZ370 T09 C~93Sq 2015 01 20.39453 09 58 54.69 +01 36 45.5 26.0g 16EZ370 T09 C~93Sq 2015 01 20.39935 09 58 54.66 +01 36 45.8 25.8g 16EZ370 T09 C~93Sq 2015 01 20.40416 09 58 54.65 +01 36 45.7 25.6g 16EZ370 T09 C~93Sq 2015 01 20.40897 09 58 54.64 +01 36 45.8 25.6g 16EZ370 T09 C~93Sq 2015 01 20.41375 09 58 54.60 +01 36 45.8 25.8g 16EZ370 T09 C~93Sq 2015 01 21.59154 09 58 49.50 +01 37 07.0 24.1i 16EZ370 T09 C~93Sq 2015 01 21.60979 09 58 49.42 +01 37 07.3 24.6i 16EZ370 T09 C~93Sq 2015 01 21.61354 09 58 49.40 +01 37 07.3 25.0i 16EZ370 T09 C~93Sq 2015 01 21.64327 09 58 49.26 +01 37 07.8 24.6i 16EZ370 T09 C~93Sq 2016 03 04.43361 10 02 33.92 +01 36 33.0 25.5i 16EZ370 T09 C~8Djp 2016 03 04.44826 10 02 33.86 +01 36 33.5 24.7i 16EZ370 T09 C~8Djp 2016 03 04.46258 10 02 33.80 +01 36 33.5 25.2i 16EZ370 T09 C~8Djp 2016 03 04.46608 10 02 33.78 +01 36 33.9 24.4i 16EZ370 T09 C~8Djp 2016 03 07.28619 10 02 20.49 +01 38 09.1 25.6g 16EZ370 T09 C~8Djp 2016 03 07.31730 10 02 20.33 +01 38 10.3 25.9g 16EZ370 T09 C~8Djp 2016 03 07.32114 10 02 20.33 +01 38 10.1 25.1g 16EZ370 T09 C~8Djp 2016 03 07.32499 10 02 20.31 +01 38 10.3 25.2g 16EZ370 T09 C~8Djp 2016 03 09.29704 10 02 11.17 +01 39 17.5 24.7r 16EZ370 T09 C~8Djp 2016 03 09.31742 10 02 11.08 +01 39 17.9 24.2r 16EZ370 T09 C~8Djp 2016 03 09.32069 10 02 11.05 +01 39 18.4 24.8r 16EZ370 T09 C~8Djp 2016 03 09.32455 10 02 11.06 +01 39 18.2 24.6r 16EZ370 T09 C~8Djp 2016 03 09.32844 10 02 11.04 +01 39 18.5 24.6r 16EZ370 T09 C~8Djp 2016 03 09.33236 10 02 10.99 +01 39 18.9 25.2r 16EZ370 T09 C~8Djp 2016 03 09.34016 10 02 10.97 +01 39 18.9 24.9r 16EZ370 T09 C~8Djp 2016 03 12.40209 10 01 57.10 +01 41 03.4 24.9z 16EZ370 T09 C~8Djp 2016 03 12.41665 10 01 57.02 +01 41 04.1 24.0z 16EZ370 T09 C~8Djp 2016 03 12.43157 10 01 56.98 +01 41 04.6 23.8z 16EZ370 T09 C~8Djp 2016 03 12.43918 10 01 56.97 +01 41 04.4 24.1z 16EZ370 T09 C~8Djp 2016 03 12.45077 10 01 56.89 +01 41 05.1 24.3z 16EZ370 T09 C~8Djp 2016 03 12.45847 10 01 56.85 +01 41 05.1 24.3z 16EZ370 T09 C~8Djp 2016 03 12.46234 10 01 56.85 +01 41 05.6 24.7z 16EZ370 T09 C~8Djp 2016 03 12.46618 10 01 56.81 +01 41 05.6 24.2z 16EZ370 T09 C~8Djp 2016 03 12.47004 10 01 56.79 +01 41 05.7 24.9z 16EZ370 T09 C~8Djp 2017 02 02.50918 10 12 08.92 +01 01 36.4 25.6r 16EZ370 T09 C~8Djp 2017 02 02.51810 10 12 08.88 +01 01 36.6 24.9r 16EZ370 T09 C~8Djp 2017 02 02.52702 10 12 08.82 +01 01 36.9 25.4r 16EZ370 T09 C~8Djp
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 -0.15 0.00 -0.09
2 0.0000 -0.42 -0.07 0.27 0.24
3 0.0000 -0.56 0.04 -0.21 -0.21
4 0.0001 -3.12 -0.15 -0.20 0.08
5 0.0002 -4.00 -0.09 -0.42 -0.04
6 0.0002 -4.11 0.04 -0.57 -0.15
7 0.0002 -4.28 0.11 -0.53 -0.08
8 0.0002 -5.20 -0.03 -0.66 -0.12
9 0.0003 -7.06 -0.04 -0.82 -0.07
10 0.0003 -7.90 0.03 -0.70 0.15
11 0.0004 -7.83 0.33 -0.89 -0.01
12 0.0023 -53.05 -0.36 -5.36 0.27
13 0.0023 -53.12 -0.14 -5.60 0.06
14 0.0023 -53.26 0.02 -5.65 0.04
15 0.0024 -53.89 -0.03 -5.67 0.09
16 0.0106 -248.32 0.13 -24.96 -0.07
17 0.0106 -248.84 -0.08 -24.84 0.09
18 0.0106 -248.95 0.14 -24.98 -0.03
19 0.0106 -249.12 0.29 -24.94 0.05
20 0.0106 -249.68 0.05 -25.15 -0.13
21 0.0138 -328.74 0.02 -31.98 0.01
22 0.0139 -329.97 0.04 -32.12 -0.01
23 0.0139 -330.25 0.02 -32.22 -0.09
24 0.0140 -332.40 -0.09 -32.49 -0.18
25 1.1305 2836.35 -0.18 1111.63 0.08
26 1.1305 2835.33 -0.03 1111.78 0.14
27 1.1305 2834.49 0.27 1111.47 -0.26
28 1.1305 2834.06 0.13 1111.74 -0.01
29 1.1383 2614.05 -0.06 1131.28 0.02
30 1.1383 2611.38 -0.28 1131.57 0.09
31 1.1384 2611.45 0.09 1131.38 -0.13
32 1.1384 2611.10 0.04 1131.46 -0.07
33 1.1438 2459.19 -0.16 1146.53 0.07
34 1.1438 2457.78 0.02 1146.43 -0.18
35 1.1438 2457.19 -0.32 1146.74 0.11
36 1.1438 2457.40 0.19 1146.61 -0.06
37 1.1439 2457.01 0.10 1146.78 0.09
38 1.1439 2456.17 -0.43 1146.90 0.17
39 1.1439 2455.89 -0.11 1146.79 0.01
40 1.1523 2224.49 0.02 1172.02 -0.02
41 1.1523 2223.12 -0.24 1172.26 0.10
42 1.1524 2222.38 0.16 1172.52 0.24
43 1.1524 2222.31 ( 0.66) 1172.28 ( -0.07)
44 1.1524 2220.94 0.17 1172.52 0.08
45 1.1524 2220.38 0.20 1172.31 -0.20
46 1.1524 2220.20 0.31 1172.77 0.24
47 1.1524 2219.64 0.04 1172.57 -0.00
48 1.1525 2219.33 0.02 1172.55 -0.04
49 2.0478 11660.15 0.08 2167.32 -0.08
50 2.0479 11659.52 0.12 2167.30 -0.08
51 2.0479 11658.57 -0.16 2167.27 -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.
16EZ370 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 51.644 51.702 51.591 ecceobj 0.286 0.289 0.284 incobj 13.831 13.828 13.833 qmin 36.257 36.051 36.296 qmax 67.461 68.202 67.307 amean 51.535 51.597 51.499 amin 51.014 51.037 50.990 amax 52.160 52.437 52.119 emean 0.279 0.280 0.277 emin 0.263 0.262 0.263 emax 0.294 0.302 0.293 imean 14.315 14.435 14.302 imin 13.629 13.626 13.690 imax 14.975 15.254 14.864 excite_mean 0.373 0.375 0.372 fracstop 1.000 1.000 1.000 cjmean 3.019 3.018 3.019 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 176.1 177.0 181.4 kozaiamp 180.0 180.0 180.0