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: 16RV81 # Created Sun Dec 22 02:10:45 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 19 observations of 19 # Arc: 6.09y # First observation: 2013/09/28 # Last observation: 2019/11/01 # Chi-squared of fit: 11.31 DOF: 32 RMS: 0.14 # Min/Max residuals: -0.30 0.27 # Exact a, adot, b, bdot, g, gdot: 1.422785E-05 2.079872E-02 -4.543703E-06 -8.169268E-03 2.338278E-02 -3.391376E-03 # Covariance matrix: 1.0224E-12 -5.2294E-13 -2.0668E-13 1.6414E-13 -2.9557E-13 -2.9024E-12 -5.2294E-13 3.5785E-13 1.6624E-13 -1.3196E-13 1.9239E-13 2.3339E-12 -2.0668E-13 1.6624E-13 5.7786E-13 -1.7480E-13 7.7800E-14 1.1872E-12 1.6414E-13 -1.3196E-13 -1.7480E-13 8.0977E-14 -6.2314E-14 -9.4207E-13 -2.9557E-13 1.9239E-13 7.7800E-14 -6.2314E-14 5.3363E-13 1.0971E-12 -2.9024E-12 2.3339E-12 1.1872E-12 -9.4207E-13 1.0971E-12 1.6665E-11 # lat0 lon0 xBary yBary zBary JD0 -0.151847 8.872316 0.070962 -0.002555 -0.999759 2456563.614678 # Heliocentric elements and errors Epoch: 2456564.5000 = 2013/09/29 Mean Anomaly: 292.08368 +/- 0.023 Argument of Peri: 266.14506 +/- 0.033 Long of Asc Node: 188.40510 +/- 0.000 Inclination: 21.44935 +/- 0.000 Eccentricity: 0.15796154 +/- 0.0002 Semi-Major Axis: 45.41316672 +/- 0.0058 Time of Perihelion: 2477652.8581 +/- 18.7 Perihelion: 38.23963319 +/- 0.0097 Aphelion: 52.58670025 +/- 0.0107 Period (y) 306.0419 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 43.25289079 +/- 0.0013 Ecliptic Y 6.68311784 +/- 0.0002 Ecliptic Z -0.11354981 +/- 0.0000 Ecliptic XDOT -0.00077661 +/- 0.0000 Ecliptic YDOT 0.00234320 +/- 0.0000 Ecliptic ZDOT -0.00095533 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.76640602 +/- 0.0013 Geocenter to KBO 42.76664342 +/- 0.0013 # Hcoef: 7.31
The following table shows the complete astrometric record for 16RV81. 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 (16RV81) followed by the observatory code and reference code for the source of the astrometry.
2013 09 28.11390 00 32 50.485 +03 22 39.88 23.9g 16RV81 W84 C~52Zi 2014 08 18.31436 00 40 28.949 +03 44 34.84 23.4i 16RV81 W84 C~52Zi 2015 10 17.16393 00 41 50.450 +03 17 11.46 23.3r 16RV81 W84 C~52Zi 2016 09 05.32577 00 49 51.240 +03 40 44.86 24.1g 16RV81 W84 C~52Zi 2016 09 09.28468 00 49 36.744 +03 38 48.71 23.2i 16RV81 W84 C~52Zi 2016 09 09.32324 00 49 36.593 +03 38 47.70 22.7z 16RV81 W84 C~52Zi 2016 11 18.08408 00 45 02.761 +03 04 28.08 23.1r 16RV81 W84 C~52Zi 2016 11 18.08544 00 45 02.747 +03 04 28.09 24.1g 16RV81 W84 C~52Zi 2017 09 27.23363 00 53 39.876 +03 31 32.62 23.2i 16RV81 W84 C~52Zi 2017 09 27.23499 00 53 39.849 +03 31 32.47 24.5g 16RV81 W84 C~52Zi 2017 10 20.16907 00 52 01.635 +03 19 20.57 23.3z 16RV81 W84 C~52Zi 2018 09 09.34826 01 00 08.618 +03 42 50.05 23.4z 16RV81 W84 C~52Zi 2018 09 14.33742 00 59 49.923 +03 40 19.19 23.5r 16RV81 W84 C~52Zi 2018 09 14.33878 00 59 49.917 +03 40 19.14 23.4i 16RV81 W84 C~52Zi 2018 09 14.34016 00 59 49.898 +03 40 19.39 24.0g 16RV81 W84 C~52Zi 2018 10 18.20031 00 57 27.396 +03 22 20.48 23.4z 16RV81 W84 C~52Zi 2019 11 01.27023 01 01 48.64 +03 17 16.7 25.3g 16RV81 T09 C~7bNw 2019 11 01.34895 01 01 48.32 +03 17 14.8 24.8g 16RV81 T09 C~7bNw 2019 11 01.51171 01 01 47.68 +03 17 10.1 24.1g 16RV81 T09 C~7bNw
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 0.05 0.00 -0.20
2 0.8876 0.00 -0.18 0.00 0.12
3 2.0508 0.00 0.16 0.00 0.03
4 2.9383 0.00 0.04 0.00 -0.03
5 2.9491 0.00 0.06 0.00 -0.18
6 2.9492 0.00 0.01 0.00 -0.04
7 3.1402 0.00 0.05 0.00 0.04
8 3.1402 0.00 -0.10 0.00 0.08
9 3.9976 0.00 0.18 0.00 0.17
10 3.9976 0.00 -0.13 0.00 0.07
11 4.0604 0.00 -0.07 0.00 0.03
12 4.9479 0.00 0.20 0.00 0.27
13 4.9616 0.00 -0.03 0.00 -0.06
14 4.9616 0.00 -0.04 0.00 -0.07
15 4.9616 0.00 -0.24 0.00 0.23
16 5.0543 0.00 0.17 0.00 0.04
17 6.0921 0.00 -0.10 0.00 -0.30
18 6.0924 0.00 -0.11 0.00 -0.00
19 6.0928 0.00 0.18 0.00 -0.15
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.
16RV81 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.647 45.647 45.647 ecceobj 0.157 0.157 0.157 incobj 21.382 21.382 21.382 qmin 37.729 37.708 37.714 qmax 53.445 53.383 53.452 amean 45.385 45.384 45.385 amin 45.026 45.014 44.999 amax 45.800 45.804 45.809 emean 0.152 0.152 0.152 emin 0.138 0.138 0.138 emax 0.167 0.166 0.167 imean 21.559 21.559 21.559 imin 21.175 21.176 21.178 imax 21.935 21.942 21.936 excite_mean 0.398 0.398 0.398 fracstop 1.000 1.000 1.000 cjmean 2.921 2.921 2.921 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 183.7 183.8 183.8 kozaiamp 179.9 179.9 180.0