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: 14RW86 # Created Fri Apr 26 01:16:11 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 20 observations of 20 # Arc: 8.31y # First observation: 2014/09/04 # Last observation: 2022/12/26 # Chi-squared of fit: 9.17 DOF: 34 RMS: 0.12 # Min/Max residuals: -0.26 0.24 # Exact a, adot, b, bdot, g, gdot: 1.812504E-05 3.898325E-02 -8.660893E-07 -1.049022E-03 3.211680E-02 3.420533E-03 # Covariance matrix: 3.1750E-13 -5.7563E-14 2.2319E-14 -2.3821E-15 2.1679E-13 -2.3539E-13 -5.7563E-14 1.1793E-13 7.5379E-15 -3.8050E-15 6.4497E-14 3.7243E-13 2.2319E-14 7.5379E-15 1.2581E-13 -2.2328E-14 3.6677E-14 1.0769E-14 -2.3821E-15 -3.8050E-15 -2.2328E-14 9.6694E-15 -6.9902E-15 -1.0846E-14 2.1679E-13 6.4497E-14 3.6677E-14 -6.9902E-15 3.4732E-13 7.6421E-14 -2.3539E-13 3.7243E-13 1.0769E-14 -1.0846E-14 7.6421E-14 1.3468E-12 # lat0 lon0 xBary yBary zBary JD0 -23.654016 33.055948 0.791925 -0.252127 -0.575985 2456904.846608 # Heliocentric elements and errors Epoch: 2456904.5000 = 2014/09/04 Mean Anomaly: 13.74089 +/- 0.006 Argument of Peri: 243.84322 +/- 0.009 Long of Asc Node: 127.15598 +/- 0.000 Inclination: 23.29276 +/- 0.000 Eccentricity: 0.20172514 +/- 0.0001 Semi-Major Axis: 39.29666325 +/- 0.0037 Time of Perihelion: 2453470.1513 +/- 1.6 Perihelion: 31.36953848 +/- 0.0039 Aphelion: 47.22378802 +/- 0.0051 Period (y) 246.3438 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.86036867 +/- 0.0004 Ecliptic Y 15.23780059 +/- 0.0003 Ecliptic Z -12.49234982 +/- 0.0002 Ecliptic XDOT -0.00162366 +/- 0.0000 Ecliptic YDOT 0.00290699 +/- 0.0000 Ecliptic ZDOT -0.00019879 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 31.72199559 +/- 0.0004 Geocenter to KBO 31.13633261 +/- 0.0006 # Hcoef: 8.44
The following table shows the complete astrometric record for 14RW86. 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 (14RW86) followed by the observatory code and reference code for the source of the astrometry.
2014 09 04.34583 02 35 19.953 -09 45 02.97 23.9r 14RW86 W84 C~52Tx 2014 09 25.28428 02 34 08.773 -10 02 30.93 24.2g 14RW86 W84 C~52Tx 2014 09 25.28565 02 34 08.769 -10 02 31.00 23.0i 14RW86 W84 C~52Tx 2014 10 01.38594 02 33 40.657 -10 07 20.52 23.0i 14RW86 W84 C~52Tx 2014 10 28.31415 02 31 11.300 -10 24 54.56 24.0g 14RW86 W84 C~52Tx 2014 10 28.31554 02 31 11.308 -10 24 54.66 23.2i 14RW86 W84 C~52Tx 2014 11 21.24505 02 28 49.862 -10 32 37.10 24.3g 14RW86 W84 C~52Tx 2014 11 21.24784 02 28 49.826 -10 32 37.18 23.5r 14RW86 W84 C~52Tx 2014 12 15.16590 02 26 53.778 -10 30 49.64 23.3i 14RW86 W84 C~52Tx 2016 09 24.30614 02 51 21.501 -08 37 03.15 22.9r 14RW86 W84 C~52Tx 2016 09 24.30890 02 51 21.476 -08 37 03.60 23.2r 14RW86 W84 C~52Tx 2016 09 25.20308 02 51 17.914 -08 37 45.89 24.0g 14RW86 W84 C~52Tx 2016 12 02.13300 02 45 03.322 -09 09 06.74 23.2i 14RW86 W84 C~52Tx 2016 12 02.14129 02 45 03.269 -09 09 06.63 22.9r 14RW86 W84 C~52Tx 2016 12 02.14268 02 45 03.283 -09 09 06.73 24.2g 14RW86 W84 C~52Tx 2017 11 19.17536 02 54 47.714 -08 24 57.26 23.1i 14RW86 W84 C~52Tx 2017 12 08.12156 02 53 03.115 -08 26 04.43 24.3g 14RW86 W84 C~52Tx 2022 12 26.085470 03 32 51.018 -04 45 14.92 23.6G 14RW86 G37 C~69bH 2022 12 26.138660 03 32 50.763 -04 45 13.95 14RW86 G37 C~69bH 2022 12 26.200570 03 32 50.490 -04 45 13.11 14RW86 G37 C~69bH
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 0.19 0.00 0.14
2 0.0573 0.00 -0.16 0.00 0.05
3 0.0573 0.00 -0.12 0.00 0.04
4 0.0740 0.00 0.02 0.00 0.12
5 0.1478 0.00 -0.09 0.00 -0.02
6 0.1478 0.00 0.16 0.00 -0.08
7 0.2133 0.00 0.22 0.00 -0.06
8 0.2133 0.00 -0.08 0.00 -0.12
9 0.2788 0.00 -0.07 0.00 -0.26
10 2.0560 0.00 0.04 0.00 0.12
11 2.0560 0.00 -0.16 0.00 -0.20
12 2.0585 0.00 0.02 0.00 0.05
13 2.2445 0.00 0.05 0.00 0.02
14 2.2445 0.00 -0.08 0.00 0.12
15 2.2445 0.00 0.24 0.00 0.02
16 3.2083 0.00 -0.05 0.00 0.04
17 3.2602 0.00 -0.11 0.00 0.17
18 8.3087 0.00 0.14 0.00 -0.04
19 8.3088 0.00 -0.10 0.00 0.05
20 8.3090 0.00 -0.01 0.00 -0.13
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.
14RW86 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.645 39.645 39.645 ecceobj 0.209 0.209 0.209 incobj 23.283 23.283 23.283 qmin 27.587 27.588 27.586 qmax 52.065 52.063 52.066 amean 39.455 39.455 39.455 amin 38.968 38.969 38.967 amax 40.011 40.010 40.013 emean 0.249 0.249 0.249 emin 0.180 0.180 0.180 emax 0.301 0.301 0.301 imean 19.978 19.977 19.978 imin 18.156 18.157 18.154 imax 22.373 22.373 22.373 excite_mean 0.425 0.425 0.425 fracstop 1.000 1.000 1.000 cjmean 2.845 2.845 2.845 libcent 0 178.5 178.5 178.6 libamp 0 108.7 108.7 108.6 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 257.2 257.2 257.2 kozaiamp 69.6 69.6 69.6