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: 15VH165 # Created Wed Apr 24 01:17:32 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 40 observations of 40 # Arc: 6.15y # First observation: 2014/11/17 # Last observation: 2021/01/11 # Chi-squared of fit: 3.74 DOF: 74 RMS: 0.05 # Min/Max residuals: -0.12 0.17 # Exact a, adot, b, bdot, g, gdot: 1.708621E-05 3.476857E-02 4.412214E-06 8.372316E-03 3.072878E-02 -1.343078E-03 # Covariance matrix: 1.8884E-13 -1.5523E-13 2.8623E-14 -3.3565E-14 -3.2555E-14 -6.4449E-13 -1.5523E-13 1.7229E-13 -3.5199E-14 4.1360E-14 2.8105E-14 7.9469E-13 2.8623E-14 -3.5199E-14 9.0986E-14 -3.6547E-14 -3.8509E-15 -1.8077E-13 -3.3565E-14 4.1360E-14 -3.6547E-14 2.7084E-14 3.7706E-15 2.1296E-13 -3.2555E-14 2.8105E-14 -3.8509E-15 3.7706E-15 1.0968E-13 6.7780E-14 -6.4449E-13 7.9469E-13 -1.8077E-13 2.1296E-13 6.7780E-14 4.0951E-12 # lat0 lon0 xBary yBary zBary JD0 -1.938891 48.200635 -0.107885 -0.033132 -0.983018 2456978.777218 # Heliocentric elements and errors Epoch: 2456978.5000 = 2014/11/17 Mean Anomaly: 348.81906 +/- 0.018 Argument of Peri: 7.46847 +/- 0.025 Long of Asc Node: 56.15324 +/- 0.000 Inclination: 13.67200 +/- 0.000 Eccentricity: 0.15607844 +/- 0.0000 Semi-Major Axis: 39.53138203 +/- 0.0022 Time of Perihelion: 2459798.0990 +/- 8.5 Perihelion: 33.36138549 +/- 0.0023 Aphelion: 45.70137857 +/- 0.0028 Period (y) 248.5543 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 22.25022068 +/- 0.0002 Ecliptic Y 25.05282293 +/- 0.0003 Ecliptic Z -1.10090885 +/- 0.0000 Ecliptic XDOT -0.00237651 +/- 0.0000 Ecliptic YDOT 0.00198944 +/- 0.0000 Ecliptic ZDOT 0.00074967 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.52506082 +/- 0.0002 Geocenter to KBO 32.54284274 +/- 0.0004 # Hcoef: 8.62
The following table shows the complete astrometric record for 15VH165. 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 (15VH165) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.27644 03 05 11.565 +15 23 10.51 24.3r 15VH165 568 C~2lVa 2014 11 17.38513 03 05 10.881 +15 23 08.36 23.6r 15VH165 568 C~2lVa 2014 11 17.49897 03 05 10.175 +15 23 06.12 23.9r 15VH165 568 C~2lVa 2014 11 19.28749 03 04 59.384 +15 22 31.08 23.7r 15VH165 568 C~2lVa 2014 11 23.39103 03 04 34.783 +15 21 12.49 23.8r 15VH165 568 C~2lVa 2015 08 11.56405 03 18 07.706 +16 39 42.44 23.9w 15VH165 568 C~2lVa 2015 09 06.61072 03 18 08.373 +16 40 36.59 24.2w 15VH165 568 C~2lVa 2015 10 07.42237 03 16 31.561 +16 35 42.89 24.1w 15VH165 568 C~2lVa 2015 10 08.43421 03 16 26.855 +16 35 27.89 24.0w 15VH165 568 C~2lVa 2015 10 08.49327 03 16 26.574 +16 35 27.02 24.0w 15VH165 568 C~2lVa 2015 11 07.34317 03 13 40.650 +16 26 35.24 23.9r 15VH165 568 C~2lVa 2015 11 07.38533 03 13 40.386 +16 26 34.45 23.9r 15VH165 568 C~2lVa 2015 11 07.42748 03 13 40.124 +16 26 33.64 24.0r 15VH165 568 C~2lVa 2015 11 10.51130 03 13 21.177 +16 25 33.67 23.9w 15VH165 568 C~2lVa 2015 11 17.35801 03 12 39.011 +16 23 21.18 24.0w 15VH165 568 C~2lVa 2015 11 17.40462 03 12 38.717 +16 23 20.26 23.9w 15VH165 568 C~2lVa 2015 12 06.38432 03 10 46.596 +16 17 41.21 24.0w 15VH165 568 C~2lVa 2015 12 13.31874 03 10 09.648 +16 15 56.51 23.9w 15VH165 568 C~2lVa 2015 12 13.37723 03 10 09.336 +16 15 55.70 24.2w 15VH165 568 C~2lVa 2016 01 01.37186 03 08 47.136 +16 12 32.24 24.1w 15VH165 568 C~2lVa 2016 01 07.31862 03 08 28.435 +16 11 58.74 24.1w 15VH165 568 C~2lVa 2016 02 04.29505 03 07 55.329 +16 13 09.04 24.1w 15VH165 568 C~2lVa 2016 02 04.30157 03 07 55.330 +16 13 09.13 24.2w 15VH165 568 C~2lVa 2016 02 10.28486 03 08 00.736 +16 14 15.05 24.0w 15VH165 568 C~2lVa 2016 09 07.62568 03 25 31.590 +17 37 56.76 15VH165 568 C~2lVa 2016 09 26.58416 03 24 42.997 +17 35 58.64 24.1w 15VH165 568 C~2lVa 2016 10 09.54522 03 23 48.992 +17 33 25.49 24.2w 15VH165 568 C~2lVa 2016 10 09.61729 03 23 48.651 +17 33 24.44 24.3w 15VH165 568 C~2lVa 2016 11 02.52573 03 21 37.503 +17 26 54.97 23.9w 15VH165 568 C~2lVa 2016 11 04.40084 03 21 26.133 +17 26 20.85 23.8w 15VH165 568 C~2lVa 2016 12 24.31334 03 16 41.371 +17 12 48.04 15VH165 568 C~2lVa 2017 01 02.41556 03 16 05.562 +17 11 26.18 15VH165 568 C~2lVa 2017 01 26.32908 03 15 14.297 +17 10 40.42 24.1w 15VH165 568 C~2lVa 2017 09 16.60340 03 32 46.615 +18 33 59.51 24.1w 15VH165 568 C~2lVa 2017 09 23.54254 03 32 27.940 +18 33 22.02 24.1w 15VH165 568 C~2lVa 2017 12 13.39064 03 25 09.100 +18 13 32.66 23.8w 15VH165 568 C~2lVa 2017 12 13.42791 03 25 08.890 +18 13 32.12 24.0w 15VH165 568 C~2lVa 2021 01 11.162340 03 46 08.467 +20 56 53.45 24.0G 15VH165 G37 C~4UIf 2021 01 11.221680 03 46 08.262 +20 56 52.92 15VH165 G37 C~4UIf 2021 01 11.268930 03 46 08.104 +20 56 52.78 15VH165 G37 C~4UIf
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 0.17 0.00 0.03
2 0.0003 0.00 -0.04 0.00 -0.00
3 0.0006 0.00 -0.09 0.00 0.01
4 0.0055 0.00 0.08 0.00 -0.03
5 0.0167 0.00 0.01 0.00 -0.03
6 0.7318 0.00 -0.12 0.00 -0.04
7 0.8031 0.00 0.01 0.00 0.07
8 0.8875 0.00 0.09 0.00 0.02
9 0.8902 0.00 -0.08 0.00 0.00
10 0.8904 0.00 -0.05 0.00 0.00
11 0.9721 0.00 0.03 0.00 0.01
12 0.9722 0.00 -0.00 0.00 0.03
13 0.9724 0.00 0.01 0.00 0.04
14 0.9808 0.00 -0.01 0.00 0.06
15 0.9995 0.00 -0.02 0.00 0.00
16 0.9997 0.00 -0.06 0.00 -0.03
17 1.0516 0.00 0.03 0.00 -0.05
18 1.0706 0.00 -0.01 0.00 -0.00
19 1.0708 0.00 -0.12 0.00 0.01
20 1.1228 0.00 -0.01 0.00 -0.00
21 1.1391 0.00 0.04 0.00 0.05
22 1.2157 0.00 0.00 0.00 -0.05
23 1.2157 0.00 -0.02 0.00 -0.02
24 1.2321 0.00 0.08 0.00 0.01
25 1.8079 0.00 0.04 0.00 -0.00
26 1.8598 0.00 0.04 0.00 0.02
27 1.8953 0.00 0.01 0.00 -0.03
28 1.8955 0.00 0.11 0.00 -0.07
29 1.9610 0.00 -0.04 0.00 -0.03
30 1.9661 0.00 0.01 0.00 -0.03
31 2.1028 0.00 0.00 0.00 -0.06
32 2.1277 0.00 0.07 0.00 0.02
33 2.1932 0.00 -0.04 0.00 0.02
34 2.8318 0.00 -0.01 0.00 -0.03
35 2.8508 0.00 0.04 0.00 0.10
36 3.0722 0.00 0.06 0.00 0.02
37 3.0723 0.00 -0.02 0.00 0.02
38 6.1516 0.00 -0.09 0.00 -0.03
39 6.1518 0.00 -0.02 0.00 -0.10
40 6.1519 0.00 0.10 0.00 0.12
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.
15VH165 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.837 39.837 39.837 ecceobj 0.161 0.161 0.161 incobj 13.644 13.644 13.644 qmin 33.080 33.080 33.080 qmax 46.354 46.356 46.352 amean 39.457 39.457 39.457 amin 39.087 39.088 39.086 amax 39.874 39.874 39.874 emean 0.135 0.135 0.135 emin 0.112 0.112 0.112 emax 0.163 0.163 0.163 imean 12.893 12.893 12.893 imin 12.100 12.101 12.100 imax 13.702 13.702 13.702 excite_mean 0.261 0.261 0.261 fracstop 1.000 1.000 1.000 cjmean 2.974 2.974 2.974 libcent 0 179.9 179.9 179.9 libamp 0 62.3 62.3 62.2 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 181.7 181.8 181.8 kozaiamp 180.0 180.0 180.0