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: 16TY94 # Created Sun Dec 22 02:10:53 2024 # Orbit generated from Bernstein formalism # Fitting 37 observations of 38 # Arc: 4.17y # First observation: 2014/09/30 # Last observation: 2018/12/02 Preliminary a, adot, b, bdot, g, gdot: 0.000650 0.031899 -0.000190 0.000653 0.028121 0.000000 # Chi-squared of fit: 12.01 DOF: 68 RMS: 0.10 # Min/Max residuals: -0.27 0.29 # Exact a, adot, b, bdot, g, gdot: 1.779557E-05 3.203220E-02 2.102934E-07 6.279787E-04 2.775317E-02 -5.747398E-04 # Covariance matrix: 3.2807E-13 -1.8388E-14 -5.3895E-14 1.0221E-14 2.3941E-13 3.2560E-13 -1.8388E-14 1.7898E-13 -2.0997E-14 1.2027E-14 9.3948E-14 1.7057E-12 -5.3895E-14 -2.0997E-14 1.2671E-13 -4.0665E-14 -6.7201E-14 -2.5463E-13 1.0221E-14 1.2027E-14 -4.0665E-14 2.0391E-14 1.6476E-14 1.3357E-13 2.3941E-13 9.3948E-14 -6.7201E-14 1.6476E-14 2.9883E-13 1.1383E-12 3.2560E-13 1.7057E-12 -2.5463E-13 1.3357E-13 1.1383E-12 1.8276E-11 # lat0 lon0 xBary yBary zBary JD0 -26.321473 21.346457 0.253541 -0.430536 -0.870670 2456930.751218 # Heliocentric elements and errors Epoch: 2456930.5000 = 2014/09/30 Mean Anomaly: 355.50838 +/- 0.023 Argument of Peri: 279.51987 +/- 0.039 Long of Asc Node: 108.82720 +/- 0.001 Inclination: 25.66827 +/- 0.000 Eccentricity: 0.24549299 +/- 0.0001 Semi-Major Axis: 48.82623848 +/- 0.0052 Time of Perihelion: 2458485.3151 +/- 7.8 Perihelion: 36.83973914 +/- 0.0052 Aphelion: 60.81273781 +/- 0.0074 Period (y) 341.1836 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 31.07479893 +/- 0.0006 Ecliptic Y 11.87533456 +/- 0.0002 Ecliptic Z -15.97684087 +/- 0.0003 Ecliptic XDOT -0.00117661 +/- 0.0000 Ecliptic YDOT 0.00293006 +/- 0.0000 Ecliptic ZDOT 0.00008078 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.90428354 +/- 0.0005 Geocenter to KBO 36.03192419 +/- 0.0007 # Hcoef: 6.98
The following table shows the complete astrometric record for 16TY94. 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 (16TY94) followed by the observatory code and reference code for the source of the astrometry.
2014 09 30.25044 01 58 42.313 -16 05 00.34 23.7g 16TY94 W84 C~4ycG 2014 09 30.25181 01 58 42.306 -16 05 00.44 22.8r 16TY94 W84 C~4ycG 2014 12 06.19149 01 53 18.390 -16 20 04.66 22.1z 16TY94 W84 C~4ycG 2014 12 06.19373 01 53 18.383 -16 20 04.62 21.9z 16TY94 W84 C~4ycG 2014 12 22.080648 01 52 33.54 -16 13 36.5 23.6g 16TY94 W84 C~352u 2014 12 22.08118 01 52 33.559 -16 13 36.61 23.8g 16TY94 W84 C~4ycG 2014 12 22.08258 01 52 33.552 -16 13 36.62 22.7r 16TY94 W84 C~4ycG 2014 12 23.07825 01 52 31.530 -16 13 04.77 22.4i 16TY94 W84 C~4ycG 2014 12 23.07962 01 52 31.525 -16 13 04.85 22.9r 16TY94 W84 C~4ycG 2014 12 23.08099 01 52 31.519 -16 13 04.89 23.8g 16TY94 W84 C~4ycG 2014 12 23.08435 01 52 31.518 -16 13 04.76 23.5g 16TY94 W84 C~4ycG 2014 12 24.14669 01 52 29.464 -16 12 29.85 22.5r 16TY94 W84 C~4ycG 2015 01 12.09103 01 52 12.705 -15 59 45.30 22.2i 16TY94 W84 C~4ycG 2015 01 14.07247 01 52 13.187 -15 58 11.37 22.6i 16TY94 W84 C~4ycG 2015 11 20.11079 02 01 22.709 -15 38 32.87 22.4z 16TY94 W84 C~4ycG 2016 10 08.22293 02 11 54.991 -14 39 56.15 22.9r 16TY94 807 C~2AEF 2016 10 09.27846 02 11 49.748 -14 40 32.68 16TY94 807 C~2AEF 2016 10 21.32019 02 10 47.894 -14 46 42.01 22.4z 16TY94 W84 C~4ycG 2016 11 19.23226 02 08 18.264 -14 53 36.80 22.0z 16TY94 W84 C~4ycG 2016 12 07.18676 02 07 01.334 -14 51 24.95 22.1z 16TY94 W84 C~4ycG 2016 12 07.18813 02 07 01.324 -14 51 25.08 22.0Y 16TY94 W84 C~4ycG 2017 10 13.313634 02 18 23.78 -13 56 21.2 22.0z 16TY94 W84 C~352u 2017 10 13.31416 02 18 23.772 -13 56 21.43 21.6z 16TY94 W84 C~4ycG 2017 11 01.215972 02 16 44.76 -14 04 33.5 22.0z 16TY94 W84 C~352u 2017 11 01.21650 02 16 44.777 -14 04 33.46 21.7z 16TY94 W84 C~4ycG 2017 11 27.083947 02 14 34.99 -14 07 41.1 22.3i 16TY94 W84 C~352u 2017 11 27.08448 02 14 34.994 -14 07 41.16 22.2i 16TY94 W84 C~4ycG 2017 12 08.129502 02 13 49.19 -14 05 50.2 22.8r 16TY94 W84 C~352u 2017 12 08.13002 02 13 49.189 -14 05 50.24 22.7r 16TY94 W84 C~4ycG 2017 12 09.125486 02 13 45.47 -14 05 34.9 24.0g 16TY94 W84 C~352u 2017 12 09.12601 02 13 45.480 -14 05 34.80 23.7g 16TY94 W84 C~4ycG 2017 12 14.075359 02 13 28.17 -14 04 03.2 22.5i 16TY94 W84 C~352u 2017 12 14.07589 02 13 28.175 -14 04 03.31 22.4i 16TY94 W84 C~4ycG 2017 12 23.137581 02 13 01.91 -14 00 18.6 23.6g 16TY94 W84 C~352u 2017 12 23.13811 02 13 01.909 -14 00 18.69 23.5g 16TY94 W84 C~4ycG 2018 09 21.32878 02 26 52.754 -12 55 04.50 22.6z 16TY94 W84 C~4ycG 2018 10 21.20338 02 24 35.217 -13 13 11.22 22.3z 16TY94 W84 C~4ycG 2018 12 02.13694 02 21 03.046 -13 20 47.35 23.1g 16TY94 W84 C~4ycG
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 0.09 0.00 0.03
2 0.0000 -0.13 0.07 -0.05 -0.01
3 0.1833 -4657.56 -0.02 949.51 -0.09
4 0.1833 -4657.64 -0.01 949.59 -0.09
5 0.2268 -5108.29 -0.16 1553.73 0.26
6 0.2268 -5108.08 0.06 1553.52 0.03
7 0.2268 -5108.18 -0.01 1553.55 0.00
8 0.2295 -5123.08 0.05 1594.08 0.09
9 0.2295 -5123.18 -0.02 1594.03 -0.02
10 0.2295 -5123.27 -0.10 1594.02 -0.08
11 0.2295 -5123.24 -0.01 1594.15 -0.09
12 0.2324 -5137.42 0.04 1637.68 0.00
13 0.2843 -5071.66 0.00 2437.08 0.02
14 0.2897 -5029.67 0.05 2521.43 -0.06
15 1.1386 2748.53 -0.02 568.00 -0.08
16 2.0232 12563.16 0.05 191.87 0.29
17 2.0261 12478.51 ( -0.10) 188.77 ( 0.60)
18 2.0591 11505.06 0.11 208.18 -0.17
19 2.1382 9343.66 -0.12 689.77 -0.06
20 2.1874 8369.52 0.06 1252.07 -0.00
21 2.1874 8369.34 -0.07 1252.00 -0.12
22 3.0364 18825.31 -0.06 309.24 0.13
23 3.0365 18825.10 -0.22 309.08 -0.03
24 3.0882 17296.68 -0.18 443.54 0.03
25 3.0882 17296.92 0.10 443.48 -0.04
26 3.1590 15482.14 -0.10 1034.86 0.11
27 3.1590 15482.17 -0.04 1034.78 0.01
28 3.1893 14913.58 0.09 1405.00 0.08
29 3.1893 14913.55 0.08 1404.97 0.03
30 3.1920 14869.93 -0.13 1440.82 -0.19
31 3.1920 14870.10 0.07 1440.85 -0.17
32 3.2055 14675.20 0.08 1626.22 0.14
33 3.2055 14675.22 0.12 1626.09 -0.02
34 3.2304 14413.91 0.05 1985.97 0.15
35 3.2304 14413.86 0.01 1985.90 0.06
36 3.9756 27209.92 0.05 621.24 0.05
37 4.0574 24894.50 0.00 459.42 0.06
38 4.1722 21843.91 0.04 1318.34 -0.27
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.
16TY94 quality flag:2 Type: SCATEXTD SCATEXTD SCATNEAR axisobj 49.365 49.381 49.350 ecceobj 0.253 0.254 0.253 incobj 25.673 25.673 25.672 qmin 36.316 36.339 36.310 qmax 62.042 62.013 62.105 amean 48.928 48.924 48.903 amin 48.483 48.474 48.456 amax 49.454 49.441 49.452 emean 0.239 0.239 0.239 emin 0.223 0.223 0.223 emax 0.255 0.255 0.256 imean 24.293 24.290 24.288 imin 23.750 23.747 23.744 imax 24.729 24.724 24.715 excite_mean 0.476 0.476 0.476 fracstop 1.000 1.000 1.000 cjmean 2.872 2.872 2.872 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 186.3 187.5 186.2 kozaiamp 180.0 179.9 180.0