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: 15OS192 # Created Fri Aug 15 01:10:47 2025 # Orbit generated from Bernstein formalism # Fitting 26 observations of 26 # Arc: 0.84y # First observation: 2014/09/18 # Last observation: 2015/07/23 Preliminary a, adot, b, bdot, g, gdot: -0.000021 0.025492 -0.000001 -0.001933 0.024232 0.000000 # Chi-squared of fit: 16.92 DOF: 46 RMS: 0.14 # Min/Max residuals: -0.43 0.36 # Exact a, adot, b, bdot, g, gdot: 1.622867E-05 2.514370E-02 -6.847881E-07 -1.932444E-03 2.481951E-02 2.948963E-03 # Covariance matrix: 2.6767E-13 1.7047E-11 2.0662E-14 -1.1170E-12 7.1232E-12 5.7260E-10 1.7047E-11 3.5739E-09 3.3617E-12 -2.2075E-10 1.0863E-09 1.0863E-07 2.0662E-14 3.3617E-12 1.2745E-13 -3.6066E-13 1.1614E-12 1.0586E-10 -1.1170E-12 -2.2075E-10 -3.6066E-13 1.4016E-11 -6.8804E-11 -6.7550E-09 7.1232E-12 1.0863E-09 1.1614E-12 -6.8804E-11 3.8917E-10 3.4572E-08 5.7260E-10 1.0863E-07 1.0586E-10 -6.7550E-09 3.4572E-08 3.3429E-06 # lat0 lon0 xBary yBary zBary JD0 10.255420 -22.932745 -0.309981 0.170749 -0.943214 2456918.751848 # Heliocentric elements and errors Epoch: 2456910.5000 = 2014/09/10 Mean Anomaly: 47.27489 +/- 6.878 Argument of Peri: 51.95587 +/- 13.593 Long of Asc Node: 223.42650 +/- 0.080 Inclination: 10.95147 +/- 0.007 Eccentricity: 0.15116201 +/- 0.0693 Semi-Major Axis: 45.21786514 +/- 0.9981 Time of Perihelion: 2442325.9990 +/- 2066.1 Perihelion: 38.38264165 +/- 3.2453 Aphelion: 52.05308863 +/- 3.3368 Period (y) 304.0698 +/- 10.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.51503140 +/- 0.0290 Ecliptic Y -15.53458833 +/- 0.0123 Ecliptic Z 7.17325751 +/- 0.0057 Ecliptic XDOT 0.00140580 +/- 0.0002 Ecliptic YDOT 0.00241034 +/- 0.0001 Ecliptic ZDOT -0.00015173 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.23295574 +/- 0.0268 Geocenter to KBO 40.29088365 +/- 0.0320 # Hcoef: 8.77
The following table shows the complete astrometric record for 15OS192. 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 (15OS192) followed by the observatory code and reference code for the source of the astrometry.
2014 09 18.25107 22 19 59.83 +00 37 13.4 25.9g 15OS192 T09 C~90Hj 2014 09 18.27261 22 19 59.75 +00 37 12.8 25.8g 15OS192 T09 C~90Hj 2014 09 18.28333 22 19 59.69 +00 37 12.4 25.7g 15OS192 T09 C~90Hj 2014 09 18.34291 22 19 59.45 +00 37 10.9 24.2y 15OS192 T09 C~90Hj 2014 09 18.34833 22 19 59.41 +00 37 10.4 25.0y 15OS192 T09 C~90Hj 2014 09 18.36196 22 19 59.37 +00 37 10.2 25.1y 15OS192 T09 C~90Hj 2014 09 22.24066 22 19 43.72 +00 35 09.8 25.0r 15OS192 T09 C~90Hj 2014 09 22.24493 22 19 43.70 +00 35 09.8 24.6r 15OS192 T09 C~90Hj 2014 09 22.27709 22 19 43.56 +00 35 08.6 24.5r 15OS192 T09 C~90Hj 2014 09 22.31871 22 19 43.40 +00 35 07.6 24.4r 15OS192 T09 C~90Hj 2014 09 22.35333 22 19 43.25 +00 35 06.4 24.5i 15OS192 T09 C~90Hj 2014 09 22.37509 22 19 43.16 +00 35 05.8 25.0i 15OS192 T09 C~90Hj 2015 07 15.45241 22 29 57.09 +01 26 22.7 25.0r 15OS192 T09 C~8nco 2015 07 15.46937 22 29 57.03 +01 26 22.7 25.0r 15OS192 T09 C~8nco 2015 07 15.55122 22 29 56.78 +01 26 22.0 25.1r 15OS192 T09 C~8nco 2015 07 21.45521 22 29 37.98 +01 25 27.9 24.6i 15OS192 T09 C~8nco 2015 07 21.51429 22 29 37.78 +01 25 27.2 24.8i 15OS192 T09 C~8nco 2015 07 21.57675 22 29 37.56 +01 25 26.3 24.7i 15OS192 T09 C~8nco 2015 07 21.60639 22 29 37.47 +01 25 26.2 24.7i 15OS192 T09 C~8nco 2015 07 22.43822 22 29 34.66 +01 25 16.8 24.7z 15OS192 T09 C~8nco 2015 07 22.45439 22 29 34.61 +01 25 16.9 24.8z 15OS192 T09 C~8nco 2015 07 22.47331 22 29 34.53 +01 25 16.8 24.1z 15OS192 T09 C~8nco 2015 07 22.50032 22 29 34.44 +01 25 16.1 24.3z 15OS192 T09 C~8nco 2015 07 23.46877 22 29 31.13 +01 25 04.9 25.1y 15OS192 T09 C~90Hj 2015 07 23.49053 22 29 31.01 +01 25 04.4 24.6y 15OS192 T09 C~90Hj 2015 07 23.52362 22 29 30.88 +01 25 04.2 24.2y 15OS192 T09 C~90Hj
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 -0.04 0.00 -0.11
2 0.0001 -1.34 0.12 -0.12 -0.11
3 0.0001 -2.32 -0.11 -0.16 -0.09
4 0.0003 -6.22 0.15 -0.24 0.17
5 0.0003 -6.96 -0.21 -0.48 -0.04
6 0.0003 -7.59 0.11 -0.45 0.07
7 0.0109 -270.12 0.09 -26.48 -0.12
8 0.0109 -270.40 0.10 -26.37 0.02
9 0.0110 -272.79 -0.12 -26.72 -0.11
10 0.0111 -275.39 0.10 -26.77 0.12
11 0.0112 -277.92 -0.09 -27.06 0.06
12 0.0113 -279.40 -0.09 -27.12 0.14
13 0.8219 9421.85 0.02 -534.56 -0.04
14 0.8220 9421.01 -0.04 -534.23 0.12
15 0.8222 9417.26 -0.04 -533.51 0.03
16 0.8383 9134.51 0.01 -480.71 0.11
17 0.8385 9131.46 0.03 -480.27 0.04
18 0.8387 9128.05 -0.11 -479.90 -0.14
19 0.8388 9126.76 0.14 -479.50 -0.00
20 0.8410 9084.02 0.05 -472.83 -0.13
21 0.8411 9083.36 0.24 -472.46 0.10
22 0.8411 9082.20 0.09 -472.12 0.28
23 0.8412 9080.68 0.01 -472.27 -0.11
24 0.8439 9030.29 0.36 -464.54 -0.18
25 0.8439 9028.43 -0.33 -464.35 -0.17
26 0.8440 9026.54 -0.43 -463.82 0.08
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.
15OS192 quality flag:1 Type: SCATEXTD SCATNEAR CLASSICAL axisobj 45.516 51.189 44.206 ecceobj 0.154 0.352 0.065 incobj 10.948 10.929 10.963 qmin 37.901 31.765 40.596 qmax 53.548 78.421 47.842 amean 45.491 53.113 44.127 amin 45.079 49.858 43.782 amax 45.946 55.689 44.483 emean 0.154 0.377 0.063 emin 0.142 0.330 0.051 emax 0.166 0.410 0.076 imean 12.057 10.258 12.184 imin 11.572 8.008 11.709 imax 12.463 12.900 12.609 excite_mean 0.259 0.417 0.220 fracstop 1.000 1.000 1.000 cjmean 3.037 2.987 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 178.7 181.9 182.6 kozaiamp 180.0 180.0 179.9