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: 16CN323
# Created Mon Apr 28 01:10:45 2025
# Orbit generated from Bernstein formalism
# Fitting 25 observations of 25
# Arc: 2.27y
# First observation: 2016/02/05
# Last observation: 2018/05/15
Preliminary a, adot, b, bdot, g, gdot:
0.000062 0.013605 0.000002 -0.003174 0.017431 0.000000
# Chi-squared of fit: 27.96 DOF: 44 RMS: 0.19
# Min/Max residuals: -0.43 0.37
# Exact a, adot, b, bdot, g, gdot:
1.192528E-05 1.353648E-02 -2.656112E-06 -3.154560E-03 1.725858E-02 -9.309617E-03
# Covariance matrix:
2.1306E-13 -2.0243E-13 -6.4564E-15 3.7554E-14 4.1912E-14 -5.1310E-12
-2.0243E-13 1.4824E-12 7.6197E-14 -4.3956E-13 5.7520E-13 5.9765E-11
-6.4564E-15 7.6197E-14 1.9612E-13 -1.1918E-13 2.6475E-14 3.2514E-12
3.7554E-14 -4.3956E-13 -1.1918E-13 2.0594E-13 -1.5069E-13 -1.8771E-11
4.1912E-14 5.7520E-13 2.6475E-14 -1.5069E-13 7.9769E-13 2.0323E-11
-5.1310E-12 5.9765E-11 3.2514E-12 -1.8771E-11 2.0323E-11 2.5534E-09
# lat0 lon0 xBary yBary zBary JD0
0.147273 114.513767 -0.351093 0.002552 -0.919623 2457423.747949
# Heliocentric elements and errors
Epoch: 2457420.5000 = 2016/02/02
Mean Anomaly: 337.82502 +/- 0.269
Argument of Peri: 271.33898 +/- 0.012
Long of Asc Node: 295.48494 +/- 0.000
Inclination: 13.04879 +/- 0.001
Eccentricity: 0.64860232 +/- 0.0035
Semi-Major Axis: 99.33050108 +/- 0.7833
Time of Perihelion: 2479693.7202 +/- 59.7
Perihelion: 34.90450804 +/- 0.4464
Aphelion: 163.75649412 +/- 1.3383
Period (y) 989.9930 +/- 11.71
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -24.74622243 +/- 0.0012
Ecliptic Y 53.40832381 +/- 0.0027
Ecliptic Z 0.14875412 +/- 0.0000
Ecliptic XDOT -0.00134206 +/- 0.0000
Ecliptic YDOT -0.00224050 +/- 0.0000
Ecliptic ZDOT -0.00050421 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 58.86294849 +/- 0.0025
Geocenter to KBO 57.94218708 +/- 0.0030
# Hcoef: 7.03
The following table shows the complete astrometric record for 16CN323. 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 (16CN323) followed by the observatory code and reference code for the source of the astrometry.
2016 02 05.24716 07 45 49.625 +21 21 47.64 24.9r 16CN323 568 C~31Lu 2016 02 05.43125 07 45 48.950 +21 21 49.15 24.4r 16CN323 568 C~31Lu 2016 02 05.52552 07 45 48.599 +21 21 49.62 24.7r 16CN323 568 C~31Lv 2016 03 10.03111 07 44 12.189 +21 24 46.74 16CN323 304 C~31Lv 2016 03 10.03762 07 44 12.170 +21 24 46.88 16CN323 304 C~31Lv 2016 03 10.08340 07 44 12.083 +21 24 46.89 16CN323 304 C~31Lv 2016 03 10.12798 07 44 11.980 +21 24 46.98 16CN323 304 C~31Lv 2016 12 30.29465 07 51 17.474 +20 57 40.67 16CN323 G37 C~31Lv 2016 12 30.35908 07 51 17.251 +20 57 41.14 16CN323 G37 C~31Lv 2017 04 21.99157 07 46 56.036 +21 05 35.72 16CN323 304 C~31Lv 2017 04 23.00868 07 46 57.013 +21 05 31.24 16CN323 304 C~31Lv 2018 03 07.13863 07 50 38.762 +20 46 01.33 16CN323 G37 C~31Lv 2018 03 07.14613 07 50 38.717 +20 46 01.49 16CN323 G37 C~31Lv 2018 03 07.15350 07 50 38.724 +20 46 01.76 16CN323 G37 C~31Lv 2018 03 07.22473 07 50 38.563 +20 46 02.04 16CN323 G37 C~31Lv 2018 03 07.23215 07 50 38.523 +20 46 02.13 16CN323 G37 C~31Lv 2018 03 07.23942 07 50 38.514 +20 46 02.04 16CN323 G37 C~31Lv 2018 03 11.08413 07 50 30.117 +20 46 17.88 24.5r 16CN323 304 C~31Lv 2018 03 11.14519 07 50 29.999 +20 46 18.46 16CN323 304 C~31Lv 2018 05 14.16034 07 50 41.365 +20 44 05.36 16CN323 G37 C~31Lv 2018 05 14.16819 07 50 41.375 +20 44 05.08 16CN323 G37 C~31Lv 2018 05 14.17567 07 50 41.401 +20 44 05.04 16CN323 G37 C~31Lv 2018 05 15.15943 07 50 43.792 +20 43 57.16 16CN323 G37 C~31Lv 2018 05 15.16725 07 50 43.811 +20 43 57.63 16CN323 G37 C~31Lv 2018 05 15.17457 07 50 43.834 +20 43 57.23 16CN323 G37 C~31Lv
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 0.10 0.00 -0.05
2 0.0005 -9.55 -0.01 -0.18 0.12
3 0.0008 -14.46 -0.10 -0.59 -0.09
4 0.0925 -1371.19 0.03 -63.14 -0.15
5 0.0925 -1371.47 -0.07 -63.05 -0.04
6 0.0926 -1372.67 0.05 -63.25 -0.15
7 0.0928 -1374.10 -0.11 -63.41 -0.22
8 0.9009 4773.36 -0.05 -590.82 0.34
9 0.9011 4770.21 0.21 -590.94 0.34
10 1.2094 1086.82 0.37 -791.03 0.26
11 1.2122 1101.08 -0.15 -793.00 0.05
12 2.0832 4369.48 -0.03 -1378.73 -0.28
13 2.0832 4368.83 -0.43 -1378.69 -0.23
14 2.0832 4368.87 -0.14 -1378.41 0.07
15 2.0834 4366.60 -0.03 -1378.55 0.06
16 2.0835 4366.03 -0.35 -1378.57 0.06
17 2.0835 4365.93 -0.22 -1378.68 -0.04
18 2.0940 4247.20 0.03 -1384.84 -0.05
19 2.0942 4245.47 0.13 -1384.57 0.33
20 2.2694 4426.82 0.26 -1486.00 -0.01
21 2.2695 4427.01 0.18 -1486.25 -0.24
22 2.2695 4427.37 0.29 -1486.22 -0.20
23 2.2722 4461.81 0.05 -1487.77 -0.21
24 2.2722 4461.98 -0.05 -1487.26 0.32
25 2.2722 4462.38 0.08 -1487.59 -0.00
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.
16CN323 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 97.846 100.068 95.755 ecceobj 0.642 0.652 0.631 incobj 13.057 13.055 13.059 qmin 33.878 33.679 34.078 qmax 167.405 181.920 160.685 amean 97.539 103.223 94.599 amin 94.869 98.478 92.659 amax 101.106 108.282 97.981 emean 0.638 0.660 0.625 emin 0.621 0.639 0.610 emax 0.656 0.680 0.641 imean 15.518 15.628 15.498 imin 14.193 14.363 14.338 imax 16.664 17.124 16.936 excite_mean 0.692 0.713 0.680 fracstop 1.000 1.000 1.000 cjmean 2.978 2.970 2.984 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 175.1 164.3 191.3 kozaiamp 180.0 180.0 180.0