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: 16EE367 # Created Mon Apr 28 01:10:46 2025 # Orbit generated from Bernstein formalism # Fitting 22 observations of 22 # Arc: 3.06y # First observation: 2014/03/01 # Last observation: 2017/03/24 Preliminary a, adot, b, bdot, g, gdot: 0.000064 0.027022 -0.000005 -0.004806 0.024928 0.000000 # Chi-squared of fit: 6.20 DOF: 38 RMS: 0.09 # Min/Max residuals: -0.24 0.21 # Exact a, adot, b, bdot, g, gdot: 1.753238E-05 2.755378E-02 -3.860448E-06 -4.939243E-03 2.489468E-02 8.799781E-03 # Covariance matrix: 2.1139E-13 -8.1628E-14 -3.0166E-16 1.8132E-15 5.1153E-14 -1.5438E-13 -8.1628E-14 9.5179E-13 2.0989E-14 -1.5814E-13 9.5734E-13 1.2456E-11 -3.0166E-16 2.0989E-14 2.0277E-13 -8.8485E-14 2.0417E-14 2.9924E-13 1.8132E-15 -1.5814E-13 -8.8485E-14 8.2365E-14 -1.5624E-13 -2.2446E-12 5.1153E-14 9.5734E-13 2.0417E-14 -1.5624E-13 1.2724E-12 1.2246E-11 -1.5438E-13 1.2456E-11 2.9924E-13 -2.2446E-12 1.2246E-11 1.7706E-10 # lat0 lon0 xBary yBary zBary JD0 -0.573464 172.620779 0.210731 -0.009527 -0.966099 2456717.605812 # Heliocentric elements and errors Epoch: 2456710.5000 = 2014/02/22 Mean Anomaly: 15.14002 +/- 0.015 Argument of Peri: 131.51611 +/- 0.045 Long of Asc Node: 349.19560 +/- 0.000 Inclination: 10.15334 +/- 0.000 Eccentricity: 0.52379750 +/- 0.0004 Semi-Major Axis: 75.11071096 +/- 0.0449 Time of Perihelion: 2446711.0707 +/- 4.2 Perihelion: 35.76790814 +/- 0.0397 Aphelion: 114.45351379 +/- 0.0761 Period (y) 650.9701 +/- 0.58 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -40.76705104 +/- 0.0018 Ecliptic Y 5.49341067 +/- 0.0002 Ecliptic Z -0.40223744 +/- 0.0000 Ecliptic XDOT -0.00134928 +/- 0.0000 Ecliptic YDOT -0.00288457 +/- 0.0000 Ecliptic ZDOT -0.00055273 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.13747448 +/- 0.0018 Geocenter to KBO 40.16923120 +/- 0.0018 # Hcoef: 7.11
The following table shows the complete astrometric record for 16EE367. 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 (16EE367) followed by the observatory code and reference code for the source of the astrometry.
2014 03 01.105034 11 31 59.297 +02 24 05.76 23.4g 16EE367 W84 C~8HEL 2014 03 01.210297 11 31 58.822 +02 24 08.21 24.2g 16EE367 W84 C~8HEL 2014 03 01.305131 11 31 58.390 +02 24 10.69 23.5g 16EE367 W84 C~8HEL 2014 03 02.281209 11 31 54.041 +02 24 35.60 23.5g 16EE367 W84 C~8HEL 2014 03 03.179953 11 31 50.018 +02 24 58.68 23.0g 16EE367 W84 C~8HEL 2014 03 21.272668 11 30 27.811 +02 32 52.04 23.0r 16EE367 W84 C~8HEL 2014 03 22.253480 11 30 23.402 +02 33 17.42 23.0r 16EE367 W84 C~8HEL 2016 03 04.49061 11 42 15.06 +00 41 18.0 23.1i 16EE367 T09 C~8AhO 2016 03 04.51566 11 42 14.93 +00 41 18.7 23.3i 16EE367 T09 C~8AhO 2016 03 04.51836 11 42 14.91 +00 41 18.7 23.1i 16EE367 T09 C~8AhO 2016 04 04.29714 11 39 59.34 +00 54 30.2 23.7g 16EE367 T09 C~8AhO 2016 04 04.30348 11 39 59.31 +00 54 30.3 23.7g 16EE367 T09 C~8AhO 2016 04 04.31835 11 39 59.25 +00 54 30.8 23.8g 16EE367 T09 C~8AhO 2016 06 01.26241 11 37 33.82 +01 08 41.1 23.3z 16EE367 T09 C~8AhO 2016 06 01.30636 11 37 33.81 +01 08 41.3 23.2z 16EE367 T09 C~8AhO 2016 06 01.33213 11 37 33.79 +01 08 41.3 23.4z 16EE367 T09 C~8AhO 2016 06 05.26379 11 37 33.09 +01 08 42.0 23.4r 16EE367 T09 C~8AhO 2016 06 05.27511 11 37 33.09 +01 08 42.1 23.4r 16EE367 T09 C~8AhO 2016 06 05.28799 11 37 33.09 +01 08 41.8 23.3r 16EE367 T09 C~8AhO 2017 03 23.16789 11 46 01.67 -00 01 43.7 23.6V 16EE367 W84 C~8HEL 2017 03 23.23627 11 46 01.36 -00 01 41.8 16EE367 W84 C~8HEL 2017 03 24.20507 11 45 57.08 -00 01 16.7 16EE367 W84 C~8HEL
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 -0.01 0.00 0.15
2 0.0003 -7.51 0.09 -0.56 -0.05
3 0.0005 -14.44 0.03 -0.84 -0.00
4 0.0032 -84.15 0.06 -3.68 0.05
5 0.0057 -148.66 -0.04 -6.28 0.08
6 0.0552 -1467.45 -0.11 -57.59 -0.06
7 0.0579 -1538.17 -0.01 -60.33 -0.19
8 2.0106 10929.84 0.21 -2015.43 0.18
9 2.0107 10927.77 -0.06 -2015.56 0.14
10 2.0107 10927.49 -0.15 -2015.68 0.03
11 2.0950 8741.85 -0.02 -2093.32 -0.02
12 2.0950 8741.40 -0.04 -2093.40 -0.09
13 2.0950 8740.37 -0.05 -2093.30 0.05
14 2.2537 6397.54 0.03 -2174.93 -0.24
15 2.2538 6397.32 0.09 -2174.81 -0.05
16 2.2539 6397.05 -0.02 -2174.93 -0.14
17 2.2646 6387.12 -0.03 -2178.44 0.04
18 2.2647 6387.08 -0.06 -2178.34 0.15
19 2.2647 6387.20 0.07 -2178.62 -0.11
20 3.0611 15090.71 0.07 -3043.96 -0.01
21 3.0613 15085.66 -0.01 -3044.05 0.09
22 3.0639 15016.40 -0.03 -3046.40 -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.
16EE367 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 74.251 74.376 74.126 ecceobj 0.519 0.520 0.518 incobj 10.184 10.184 10.184 qmin 34.798 34.740 34.766 qmax 117.403 117.210 117.275 amean 74.482 74.470 74.320 amin 73.217 72.756 72.608 amax 76.432 76.514 76.542 emean 0.520 0.520 0.519 emin 0.507 0.504 0.503 emax 0.536 0.535 0.535 imean 10.751 10.842 10.641 imin 9.851 10.008 9.813 imax 11.439 11.801 11.423 excite_mean 0.553 0.553 0.551 fracstop 1.000 1.000 1.000 cjmean 3.043 3.042 3.044 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 196.5 192.7 200.8 kozaiamp 179.9 179.9 180.0