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: 14YF92 # Created Fri Nov 22 02:10:13 2024 # Orbit generated from Bernstein formalism # Fitting 28 observations of 28 # Arc: 3.96y # First observation: 2014/12/17 # Last observation: 2018/12/02 Preliminary a, adot, b, bdot, g, gdot: -0.000361 0.020423 0.000087 -0.005666 0.023318 0.000000 # Chi-squared of fit: 8.26 DOF: 50 RMS: 0.10 # Min/Max residuals: -0.28 0.27 # Exact a, adot, b, bdot, g, gdot: 1.463270E-05 2.003581E-02 -3.857116E-06 -5.557096E-03 2.261122E-02 -2.831623E-03 # Covariance matrix: 5.3262E-13 -3.9563E-13 -9.4472E-14 8.9202E-14 -2.5459E-13 -3.3926E-12 -3.9563E-13 4.6471E-13 8.9133E-14 -1.1890E-13 1.5456E-13 4.7376E-12 -9.4472E-14 8.9133E-14 2.0418E-13 -9.3125E-14 6.6829E-14 9.2947E-13 8.9202E-14 -1.1890E-13 -9.3125E-14 7.0067E-14 -4.0781E-14 -1.3207E-12 -2.5459E-13 1.5456E-13 6.6829E-14 -4.0781E-14 2.3511E-13 1.4127E-12 -3.3926E-12 4.7376E-12 9.2947E-13 -1.3207E-12 1.4127E-12 5.2974E-11 # lat0 lon0 xBary yBary zBary JD0 -26.171504 15.834364 -0.917538 -0.155976 -0.317841 2457008.654758 # Heliocentric elements and errors Epoch: 2457000.5000 = 2014/12/09 Mean Anomaly: 262.54086 +/- 0.062 Argument of Peri: 353.00083 +/- 0.051 Long of Asc Node: 138.49286 +/- 0.001 Inclination: 29.69248 +/- 0.000 Eccentricity: 0.12182901 +/- 0.0003 Semi-Major Axis: 43.25858778 +/- 0.0041 Time of Perihelion: 2485134.2099 +/- 17.6 Perihelion: 37.98843702 +/- 0.0144 Aphelion: 48.52873854 +/- 0.0147 Period (y) 284.5226 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.27281711 +/- 0.0008 Ecliptic Y 11.81103406 +/- 0.0003 Ecliptic Z -19.50644758 +/- 0.0004 Ecliptic XDOT -0.00124758 +/- 0.0000 Ecliptic YDOT 0.00216387 +/- 0.0000 Ecliptic ZDOT -0.00045257 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.55121269 +/- 0.0007 Geocenter to KBO 44.22583788 +/- 0.0009 # Hcoef: 6.87
The following table shows the complete astrometric record for 14YF92. 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 (14YF92) followed by the observatory code and reference code for the source of the astrometry.
2014 12 17.15398 01 39 27.246 -17 53 38.02 24.3g 14YF92 W84 C~55TQ 2015 01 12.08546 01 39 04.862 -17 40 54.40 24.1g 14YF92 W84 C~55TQ 2015 08 23.40344 01 51 25.757 -17 04 28.17 23.5i 14YF92 W84 C~55TR 2015 09 13.31735 01 50 31.540 -17 19 32.08 23.1i 14YF92 W84 C~55TR 2015 10 07.20977 01 48 59.058 -17 34 37.39 23.2r 14YF92 W84 C~55TR 2015 10 07.21113 01 48 59.045 -17 34 37.35 22.8i 14YF92 W84 C~55TR 2015 10 17.26585 01 48 14.517 -17 39 37.12 23.7r 14YF92 W84 C~55TR 2015 10 18.21481 01 48 10.253 -17 40 02.17 23.6g 14YF92 W84 C~55TR 2015 11 01.21963 01 47 07.129 -17 45 00.35 23.2z 14YF92 W84 C~55TR 2015 11 05.18448 01 46 49.638 -17 45 58.91 23.6g 14YF92 W84 C~55TR 2015 11 07.16552 01 46 41.032 -17 46 23.73 23.1z 14YF92 W84 C~55TR 2015 11 30.18137 01 45 11.633 -17 47 16.61 23.4i 14YF92 W84 C~55TR 2016 09 30.27364 01 54 27.062 -17 19 34.29 23.3i 14YF92 W84 C~55TR 2016 09 30.27637 01 54 27.053 -17 19 34.33 23.5g 14YF92 W84 C~55TR 2016 10 02.25000 01 54 18.883 -17 20 44.93 23.5r 14YF92 W84 C~55TR 2016 10 02.25137 01 54 18.871 -17 20 44.89 23.4i 14YF92 W84 C~55TR 2016 10 02.25274 01 54 18.863 -17 20 44.99 23.6g 14YF92 W84 C~55TR 2016 11 18.23319 01 50 53.014 -17 36 39.21 22.9z 14YF92 W84 C~55TR 2017 11 27.07474 01 55 21.556 -17 24 56.91 23.0i 14YF92 W84 C~55TR 2017 12 07.07100 01 54 48.210 -17 23 35.93 23.1r 14YF92 W84 C~55TR 2017 12 13.13638 01 54 31.133 -17 22 07.62 23.8g 14YF92 W84 C~55TR 2017 12 14.13695 01 54 28.571 -17 21 50.40 23.7g 14YF92 W84 C~55TR 2017 12 22.10784 01 54 10.955 -17 19 04.80 23.2i 14YF92 W84 C~55TR 2017 12 22.10920 01 54 10.959 -17 19 04.89 24.0g 14YF92 W84 C~55TR 2018 01 10.08904 01 53 50.659 -17 09 36.16 23.1r 14YF92 W84 C~55TR 2018 09 22.38979 02 05 05.030 -16 49 28.51 23.3i 14YF92 W84 C~55TR 2018 11 17.09761 02 01 04.059 -17 12 40.13 23.4i 14YF92 W84 C~55TR 2018 12 02.20270 02 00 06.148 -17 12 21.61 22.4r 14YF92 W84 C~55TR
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 -0.13 0.00 -0.01
2 0.0710 14.15 0.10 827.73 0.03
3 0.6824 10595.78 -0.06 -1518.18 0.00
4 0.7397 9510.79 -0.12 -2017.42 0.09
5 0.8051 7928.31 0.03 -2292.53 -0.09
6 0.8051 7928.16 -0.02 -2292.41 0.02
7 0.8326 7223.60 -0.13 -2302.17 0.01
8 0.8352 7157.66 0.00 -2299.81 -0.00
9 0.8736 6211.88 -0.08 -2199.54 0.19
10 0.8844 5959.80 -0.02 -2150.08 -0.01
11 0.8898 5837.42 0.07 -2122.14 -0.28
12 0.9528 4650.22 0.16 -1646.42 -0.01
13 1.7881 12583.51 0.07 -3431.97 -0.00
14 1.7882 12583.37 0.13 -3431.95 0.04
15 1.7936 12447.04 0.06 -3446.83 -0.01
16 1.7936 12446.90 0.01 -3446.72 0.11
17 1.7936 12446.75 -0.04 -3446.77 0.08
18 1.9222 9363.18 0.27 -3080.55 -0.17
19 2.9457 13158.15 -0.16 -4054.62 0.07
20 2.9731 12757.50 0.05 -3779.36 0.01
21 2.9897 12572.00 -0.07 -3595.94 0.02
22 2.9924 12545.84 -0.15 -3564.82 -0.09
23 3.0142 12385.77 -0.03 -3307.97 0.10
24 3.0143 12385.78 0.01 -3308.08 -0.05
25 3.0662 12360.08 -0.05 -2668.51 -0.04
26 3.7652 21696.13 0.07 -5716.56 0.00
27 3.9177 17941.26 -0.03 -5479.55 0.15
28 3.9591 17192.99 0.05 -5105.71 -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.
14YF92 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.598 43.609 43.588 ecceobj 0.117 0.118 0.117 incobj 29.638 29.638 29.638 qmin 37.154 37.062 37.217 qmax 49.835 50.040 49.794 amean 43.345 43.346 43.345 amin 43.007 42.997 43.009 amax 43.731 43.748 43.723 emean 0.127 0.127 0.125 emin 0.112 0.112 0.112 emax 0.140 0.144 0.139 imean 28.286 28.281 28.303 imin 27.963 27.928 27.983 imax 28.639 28.659 28.649 excite_mean 0.491 0.491 0.490 fracstop 1.000 1.000 1.000 cjmean 2.792 2.792 2.792 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 162.2 166.1 162.0 kozaiamp 180.0 180.0 179.9