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: 15HF195 # Created Wed Dec 25 02:10:18 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 34 observations of 34 # Arc: 6.18y # First observation: 2013/04/18 # Last observation: 2019/06/23 # Chi-squared of fit: 4.61 DOF: 62 RMS: 0.07 # Min/Max residuals: -0.11 0.16 # Exact a, adot, b, bdot, g, gdot: 1.878538E-05 3.554723E-02 2.102025E-06 3.277955E-03 3.013482E-02 1.621495E-03 # Covariance matrix: 2.8327E-13 -2.7854E-13 2.1163E-14 -2.6243E-14 -1.9975E-14 -1.2229E-12 -2.7854E-13 3.3670E-13 -2.6854E-14 3.3153E-14 4.5468E-14 1.5480E-12 2.1163E-14 -2.6854E-14 9.4056E-14 -3.7893E-14 -1.5162E-15 -1.3534E-13 -2.6243E-14 3.3153E-14 -3.7893E-14 2.9093E-14 -1.0212E-17 1.6848E-13 -1.9975E-14 4.5468E-14 -1.5162E-15 -1.0212E-17 2.6017E-13 3.9029E-14 -1.2229E-12 1.5480E-12 -1.3534E-13 1.6848E-13 3.9029E-14 7.8375E-12 # lat0 lon0 xBary yBary zBary JD0 -3.283167 -151.383331 0.007920 -0.057547 -1.004206 2456400.616530 # Heliocentric elements and errors Epoch: 2456400.5000 = 2013/04/18 Mean Anomaly: 9.38375 +/- 0.013 Argument of Peri: 313.81039 +/- 0.022 Long of Asc Node: 239.64638 +/- 0.001 Inclination: 6.16167 +/- 0.000 Eccentricity: 0.22037311 +/- 0.0001 Semi-Major Axis: 43.58035618 +/- 0.0046 Time of Perihelion: 2453661.3965 +/- 3.9 Perihelion: 33.97641733 +/- 0.0051 Aphelion: 53.18429502 +/- 0.0067 Period (y) 287.7030 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -29.96859481 +/- 0.0005 Ecliptic Y -16.34020481 +/- 0.0003 Ecliptic Z -1.90041556 +/- 0.0000 Ecliptic XDOT 0.00139641 +/- 0.0000 Ecliptic YDOT -0.00291342 +/- 0.0000 Ecliptic ZDOT 0.00028903 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 34.18667225 +/- 0.0004 Geocenter to KBO 33.18421260 +/- 0.0006 # Hcoef: 7.23
The following table shows the complete astrometric record for 15HF195. 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 (15HF195) followed by the observatory code and reference code for the source of the astrometry.
2013 04 18.115752 13 41 33.14 -14 02 55.3 15HF195 W84 C~55Q0 2013 04 18.119919 13 41 33.13 -14 02 55.2 15HF195 W84 C~55Q0 2013 04 18.124063 13 41 33.09 -14 02 55.0 15HF195 W84 C~55Q0 2013 04 18.128252 13 41 33.08 -14 02 54.9 15HF195 W84 C~55Q0 2014 03 28.23828 13 51 32.57 -14 46 13.6 15HF195 W84 C~55Q0 2014 03 28.30106 13 51 32.26 -14 46 11.9 22.7V 15HF195 W84 C~55Q0 2014 03 28.38479 13 51 31.83 -14 46 09.7 15HF195 W84 C~55Q0 2014 04 23.097720 13 49 14.09 -14 33 15.4 15HF195 W84 C~55Q0 2014 04 23.100984 13 49 14.07 -14 33 15.3 15HF195 W84 C~55Q0 2014 04 23.104213 13 49 14.05 -14 33 15.2 15HF195 W84 C~55Q0 2014 04 23.107454 13 49 14.03 -14 33 15.0 15HF195 W84 C~55Q0 2014 04 23.110694 13 49 14.01 -14 33 14.9 15HF195 W84 C~55Q0 2014 04 24.117859 13 49 08.48 -14 32 42.4 15HF195 W84 C~55Q0 2014 04 24.121111 13 49 08.46 -14 32 42.3 15HF195 W84 C~55Q0 2014 04 24.124363 13 49 08.44 -14 32 42.2 15HF195 W84 C~55Q0 2014 04 24.127593 13 49 08.43 -14 32 42.1 15HF195 W84 C~55Q0 2014 04 24.130822 13 49 08.41 -14 32 42.0 15HF195 W84 C~55Q0 2014 04 25.117025 13 49 02.99 -14 32 09.9 15HF195 W84 C~55Q0 2014 04 25.120278 13 49 02.98 -14 32 09.9 15HF195 W84 C~55Q0 2014 04 25.123507 13 49 02.96 -14 32 09.8 15HF195 W84 C~55Q0 2014 04 25.126759 13 49 02.94 -14 32 09.6 15HF195 W84 C~55Q0 2014 04 25.130000 13 49 02.92 -14 32 09.5 15HF195 W84 C~55Q0 2014 06 27.965463 13 44 57.18 -14 03 56.9 15HF195 W84 C~55Q0 2014 06 28.111412 13 44 56.99 -14 03 54.8 15HF195 W84 C~55Q0 2014 06 28.988472 13 44 55.99 -14 03 42.9 15HF195 W84 C~55Q0 2014 06 28.989630 13 44 55.99 -14 03 42.9 15HF195 W84 C~55Q0 2015 01 31.288310 14 02 03.68 -15 28 02.4 15HF195 W84 C~55Q0 2015 01 31.290370 14 02 03.68 -15 28 02.2 15HF195 W84 C~55Q0 2015 04 25.02502 13 57 12.76 -15 04 10.8 22.5V 15HF195 W84 C~2gaG 2015 04 25.09398 13 57 12.37 -15 04 08.7 15HF195 W84 C~2gaG 2015 04 26.08949 13 57 06.89 -15 03 37.0 15HF195 W84 C~2gaG 2015 04 26.15834 13 57 06.50 -15 03 34.9 15HF195 W84 C~2gaG 2019 06 23.052465 14 25 10.33 -16 33 28.3 15HF195 W84 C~55Q0 2019 06 23.101591 14 25 10.18 -16 33 27.3 15HF195 W84 C~55Q0
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 -0.06 0.00 -0.06
2 0.0000 0.00 0.14 0.00 -0.10
3 0.0000 0.00 -0.11 0.00 -0.03
4 0.0000 0.00 0.09 0.00 -0.07
5 0.9422 0.00 -0.08 0.00 0.05
6 0.9423 0.00 0.05 0.00 0.08
7 0.9426 0.00 -0.04 0.00 0.03
8 1.0130 0.00 0.02 0.00 -0.00
9 1.0130 0.00 -0.01 0.00 -0.01
10 1.0130 0.00 -0.03 0.00 -0.01
11 1.0130 0.00 -0.06 0.00 0.09
12 1.0130 0.00 -0.09 0.00 0.08
13 1.0157 0.00 0.01 0.00 -0.05
14 1.0158 0.00 -0.02 0.00 -0.05
15 1.0158 0.00 -0.04 0.00 -0.06
16 1.0158 0.00 0.08 0.00 -0.06
17 1.0158 0.00 0.05 0.00 -0.07
18 1.0185 0.00 -0.09 0.00 0.01
19 1.0185 0.00 0.03 0.00 -0.09
20 1.0185 0.00 0.00 0.00 -0.10
21 1.0185 0.00 -0.03 0.00 -0.00
22 1.0185 0.00 -0.05 0.00 -0.01
23 1.1933 0.00 0.04 0.00 0.11
24 1.1937 0.00 0.03 0.00 0.16
25 1.1961 0.00 -0.02 0.00 0.07
26 1.1961 0.00 0.00 0.00 0.06
27 1.7883 0.00 -0.01 0.00 -0.06
28 1.7883 0.00 -0.02 0.00 0.16
29 2.0175 0.00 0.07 0.00 0.04
30 2.0177 0.00 -0.01 0.00 -0.03
31 2.0205 0.00 0.11 0.00 0.05
32 2.0207 0.00 0.05 0.00 -0.03
33 6.1792 0.00 0.03 0.00 -0.07
34 6.1793 0.00 -0.07 0.00 -0.00
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.
15HF195 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 43.366 43.366 43.366 ecceobj 0.216 0.216 0.216 incobj 6.161 6.161 6.161 qmin 32.644 32.643 32.644 qmax 55.225 55.223 55.229 amean 43.726 43.726 43.726 amin 43.294 43.293 43.297 amax 44.212 44.214 44.214 emean 0.193 0.193 0.193 emin 0.068 0.067 0.068 emax 0.251 0.251 0.251 imean 9.121 9.117 9.120 imin 5.429 5.427 5.430 imax 14.841 14.846 14.850 excite_mean 0.260 0.260 0.260 fracstop 1.000 1.000 1.000 cjmean 3.016 3.016 3.016 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 251.9 252.2 252.2 kozaiamp 69.9 69.8 68.9