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: 14RU86 # Created Fri Apr 26 01:16:11 2024 # Orbit generated from Bernstein formalism # Fitting 22 observations of 22 # Arc: 4.25y # First observation: 2014/09/04 # Last observation: 2018/12/03 Preliminary a, adot, b, bdot, g, gdot: 0.000087 0.020993 -0.000034 -0.004228 0.023801 0.000000 # Chi-squared of fit: 5.65 DOF: 38 RMS: 0.09 # Min/Max residuals: -0.30 0.15 # Exact a, adot, b, bdot, g, gdot: 1.366270E-05 2.129335E-02 -2.119478E-06 -4.296879E-03 2.397066E-02 5.014840E-03 # Covariance matrix: 2.6244E-13 -2.4056E-14 -1.3079E-15 -6.2536E-15 1.4123E-13 3.7720E-14 -2.4056E-14 3.0301E-13 2.1368E-14 -7.0713E-14 2.2350E-13 5.2357E-12 -1.3079E-15 2.1368E-14 1.6909E-13 -6.4517E-14 1.2771E-14 4.4595E-13 -6.2536E-15 -7.0713E-14 -6.4517E-14 5.3612E-14 -5.5358E-14 -1.4012E-12 1.4123E-13 2.2350E-13 1.2771E-14 -5.5358E-14 3.2529E-13 3.5725E-12 3.7720E-14 5.2357E-12 4.4595E-13 -1.4012E-12 3.5725E-12 1.0675E-10 # lat0 lon0 xBary yBary zBary JD0 -28.424892 24.812563 0.693789 -0.350033 -0.647008 2456904.831358 # Heliocentric elements and errors Epoch: 2456900.5000 = 2014/08/31 Mean Anomaly: 97.92847 +/- 0.083 Argument of Peri: 127.39072 +/- 0.062 Long of Asc Node: 138.22944 +/- 0.001 Inclination: 30.23937 +/- 0.000 Eccentricity: 0.21799929 +/- 0.0003 Semi-Major Axis: 39.46924097 +/- 0.0070 Time of Perihelion: 2432263.2022 +/- 19.7 Perihelion: 30.86497452 +/- 0.0148 Aphelion: 48.07350743 +/- 0.0162 Period (y) 247.9684 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.25766974 +/- 0.0008 Ecliptic Y 15.07716446 +/- 0.0004 Ecliptic Z -19.85797337 +/- 0.0005 Ecliptic XDOT -0.00078022 +/- 0.0000 Ecliptic YDOT 0.00231647 +/- 0.0000 Ecliptic ZDOT -0.00070414 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.37036618 +/- 0.0007 Geocenter to KBO 41.71766719 +/- 0.0010 # Hcoef: 6.97
The following table shows the complete astrometric record for 14RU86. 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 (14RU86) followed by the observatory code and reference code for the source of the astrometry.
2014 09 04.33058 02 13 55.144 -16 51 12.29 23.7g 14RU86 W84 C~52Tx 2014 09 04.33195 02 13 55.118 -16 51 12.20 23.1r 14RU86 W84 C~52Tx 2014 09 27.26700 02 12 40.143 -17 08 05.55 23.1r 14RU86 W84 C~52Tx 2014 09 27.26839 02 12 40.151 -17 08 05.61 23.3i 14RU86 W84 C~52Tx 2014 09 27.26976 02 12 40.138 -17 08 05.68 23.3g 14RU86 W84 C~52Tx 2014 12 17.16101 02 06 56.084 -17 25 45.80 23.7g 14RU86 W84 C~52Tx 2014 12 20.16455 02 06 48.337 -17 24 41.24 23.6r 14RU86 W84 C~52Tx 2015 01 14.09219 02 06 14.630 -17 11 37.07 23.4r 14RU86 W84 C~52Tx 2015 12 01.07617 02 12 56.808 -17 15 49.73 22.8r 14RU86 W84 C~52Tx 2015 12 01.07754 02 12 56.809 -17 15 49.71 22.8i 14RU86 W84 C~52Tx 2015 12 01.07890 02 12 56.806 -17 15 49.59 23.7g 14RU86 W84 C~52Tx 2016 09 10.27556 02 23 44.177 -16 27 47.73 23.2r 14RU86 W84 C~52Tx 2016 09 10.27694 02 23 44.168 -16 27 47.77 24.3g 14RU86 W84 C~52Tx 2016 12 31.11905 02 16 30.638 -16 52 41.31 23.2i 14RU86 W84 C~52Tx 2016 12 31.12042 02 16 30.632 -16 52 41.16 23.4r 14RU86 W84 C~52Tx 2017 11 23.13798 02 23 31.136 -16 47 47.88 23.3r 14RU86 W84 C~52Tx 2017 11 23.13935 02 23 31.136 -16 47 47.94 23.1i 14RU86 W84 C~52Tx 2017 12 08.13556 02 22 31.445 -16 46 39.27 24.1g 14RU86 W84 C~52Tx 2018 01 17.09602 02 21 10.361 -16 29 02.72 22.9r 14RU86 W84 C~52Tx 2018 01 17.09739 02 21 10.352 -16 29 02.91 23.0i 14RU86 W84 C~52Tx 2018 01 17.09877 02 21 10.357 -16 29 02.77 24.2g 14RU86 W84 C~52Tx 2018 12 03.05757 02 27 47.842 -16 32 49.07 23.8g 14RU86 W84 C~52Tx
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 0.08 0.00 -0.15
2 0.0000 -0.31 -0.16 0.22 0.12
3 0.0628 -1378.25 -0.09 -533.60 0.07
4 0.0628 -1378.17 0.09 -533.70 -0.00
5 0.0628 -1378.37 -0.01 -533.70 0.02
6 0.2843 -6348.52 0.00 317.54 -0.30
7 0.2925 -6427.85 -0.06 418.50 0.06
8 0.3607 -6587.89 0.07 1325.84 0.03
9 1.2395 -1331.48 -0.05 -1053.52 0.03
10 1.2396 -1331.46 0.04 -1053.51 0.00
11 1.2396 -1331.46 0.11 -1053.38 0.10
12 2.0176 8362.01 0.10 -1945.28 0.02
13 2.0176 8361.88 0.04 -1945.27 0.07
14 2.3239 2032.13 -0.02 -927.89 -0.01
15 2.3239 2032.10 -0.02 -927.72 0.11
16 3.2192 7722.23 -0.16 -2979.10 -0.02
17 3.2192 7722.20 -0.10 -2979.16 -0.11
18 3.2602 6957.61 0.01 -2582.87 -0.10
19 3.3697 6290.18 0.15 -1157.06 0.12
20 3.3697 6289.99 -0.06 -1157.19 -0.06
21 3.3697 6290.11 0.05 -1157.09 -0.01
22 4.2457 11477.71 0.01 -3595.96 0.01
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.
14RU86 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.757 39.777 39.737 ecceobj 0.218 0.218 0.217 incobj 30.195 30.196 30.195 qmin 25.951 26.202 25.839 qmax 53.572 53.316 53.476 amean 39.454 39.452 39.453 amin 39.039 39.015 39.048 amax 39.968 39.977 39.932 emean 0.268 0.265 0.271 emin 0.184 0.186 0.182 emax 0.341 0.334 0.344 imean 27.515 27.654 27.411 imin 25.159 25.420 24.951 imax 29.839 29.813 29.839 excite_mean 0.537 0.536 0.537 fracstop 1.000 1.000 1.000 cjmean 2.717 2.716 2.717 libcent 0 180.2 180.1 180.9 libamp 0 67.6 78.4 57.5 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 85.6 85.6 85.7 kozaiamp 52.7 53.2 52.7