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: 14HP208 # Created Wed Dec 25 02:09:50 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 23 observations of 23 # Arc: 6.88y # First observation: 2014/04/30 # Last observation: 2021/03/17 # Chi-squared of fit: 9.30 DOF: 40 RMS: 0.11 # Min/Max residuals: -0.44 0.25 # Exact a, adot, b, bdot, g, gdot: 1.165275E-05 1.398333E-02 6.524426E-06 6.995378E-03 1.862729E-02 -6.799149E-03 # Covariance matrix: 2.5070E-13 -1.9366E-13 6.1349E-14 -7.5611E-14 -8.4196E-14 -1.4327E-12 -1.9366E-13 2.2107E-13 -7.0691E-14 8.7292E-14 -5.4486E-14 1.6522E-12 6.1349E-14 -7.0691E-14 1.4110E-13 -6.5359E-14 -6.7310E-14 -6.4810E-13 -7.5611E-14 8.7292E-14 -6.5359E-14 6.1200E-14 8.0332E-14 7.9804E-13 -8.4196E-14 -5.4486E-14 -6.7310E-14 8.0332E-14 2.4855E-12 1.5507E-12 -1.4327E-12 1.6522E-12 -6.4810E-13 7.9804E-13 1.5507E-12 1.5129E-11 # lat0 lon0 xBary yBary zBary JD0 -3.899577 -143.787027 -0.058878 -0.068271 -1.003151 2456777.536448 # Heliocentric elements and errors Epoch: 2456778.5000 = 2014/05/01 Mean Anomaly: 314.42489 +/- 0.038 Argument of Peri: 84.60931 +/- 0.036 Long of Asc Node: 223.86095 +/- 0.000 Inclination: 26.86869 +/- 0.001 Eccentricity: 0.42114428 +/- 0.0003 Semi-Major Axis: 64.96341098 +/- 0.0340 Time of Perihelion: 2480990.2914 +/- 132.6 Perihelion: 37.60444177 +/- 0.0265 Aphelion: 92.32238018 +/- 0.0514 Period (y) 523.6142 +/- 0.41 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -43.99172427 +/- 0.0037 Ecliptic Y -32.28297161 +/- 0.0027 Ecliptic Z -3.65063562 +/- 0.0003 Ecliptic XDOT 0.00195684 +/- 0.0000 Ecliptic YDOT -0.00111396 +/- 0.0000 Ecliptic ZDOT 0.00109390 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 54.68841445 +/- 0.0033 Geocenter to KBO 53.68501911 +/- 0.0045 # Hcoef: 6.31
The following table shows the complete astrometric record for 14HP208. 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 (14HP208) followed by the observatory code and reference code for the source of the astrometry.
2014 04 30.03567 14 10 11.12 -17 16 07.5 23.8V 14HP208 W84 C~2fcC 2014 04 30.10463 14 10 10.86 -17 16 05.7 14HP208 W84 C~2fcC 2014 05 01.02299 14 10 07.46 -17 15 44.8 14HP208 W84 C~2fcC 2014 05 01.09224 14 10 07.22 -17 15 42.7 14HP208 W84 C~2fcC 2015 04 25.15501 14 14 15.29 -17 11 25.1 23.5V 14HP208 W84 C~2gaG 2015 04 25.15501 14 14 15.30 -17 11 25.2 23.7V 14HP208 W84 C~5ipB 2015 04 25.15882 14 14 15.28 -17 11 25.3 23.7V 14HP208 W84 C~5ipB 2015 04 25.15882 14 14 15.28 -17 11 25.2 23.6V 14HP208 W84 C~2gaG 2015 04 25.18947 14 14 15.16 -17 11 24.7 14HP208 W84 C~5ipB 2015 04 25.19332 14 14 15.15 -17 11 24.5 14HP208 W84 C~5ipB 2015 04 25.22385 14 14 15.04 -17 11 23.8 14HP208 W84 C~2gaG 2015 04 25.22769 14 14 15.01 -17 11 23.6 14HP208 W84 C~2gaG 2015 04 26.18510 14 14 11.44 -17 11 01.9 14HP208 W84 C~2gaG 2015 04 26.18890 14 14 11.43 -17 11 01.7 14HP208 W84 C~2gaG 2015 04 26.25421 14 14 11.19 -17 11 00.1 14HP208 W84 C~2gaG 2016 03 06.286759 14 20 38.30 -17 19 14.7 14HP208 W84 C~5ipB 2016 05 01.169578 14 17 38.19 -17 01 49.9 14HP208 W84 C~5ipB 2016 05 01.172760 14 17 38.18 -17 01 49.9 14HP208 W84 C~5ipB 2016 05 01.175986 14 17 38.16 -17 01 49.9 14HP208 W84 C~5ipB 2016 05 01.179177 14 17 38.15 -17 01 49.7 14HP208 W84 C~5ipB 2016 05 01.182387 14 17 38.14 -17 01 49.7 14HP208 W84 C~5ipB 2021 03 17.396474 14 39 56.06 -16 36 08.5 14HP208 W84 C~5ipB 2021 03 17.397834 14 39 56.04 -16 36 08.5 14HP208 W84 C~5ipB
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 0.00 0.00 -0.13
2 0.0002 0.00 -0.03 0.00 0.08
3 0.0027 0.00 -0.21 0.00 -0.44
4 0.0029 0.00 0.07 0.00 0.05
5 0.9860 0.00 0.13 0.00 0.15
6 0.9860 0.00 -0.02 0.00 0.25
7 0.9860 0.00 0.05 0.00 -0.04
8 0.9860 0.00 0.05 0.00 0.06
9 0.9860 0.00 -0.01 0.00 -0.14
10 0.9861 0.00 0.06 0.00 -0.03
11 0.9861 0.00 0.15 0.00 -0.02
12 0.9862 0.00 -0.08 0.00 0.09
13 0.9888 0.00 -0.08 0.00 -0.09
14 0.9888 0.00 -0.01 0.00 0.02
15 0.9890 0.00 0.11 0.00 0.12
16 1.8515 0.00 -0.06 0.00 0.09
17 2.0045 0.00 -0.03 0.00 0.09
18 2.0045 0.00 0.01 0.00 0.01
19 2.0045 0.00 -0.11 0.00 -0.06
20 2.0045 0.00 -0.08 0.00 0.07
21 2.0045 0.00 -0.04 0.00 -0.01
22 6.8812 0.00 0.14 0.00 -0.04
23 6.8812 0.00 -0.11 0.00 -0.06
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.
14HP208 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 64.597 64.596 64.597 ecceobj 0.423 0.423 0.423 incobj 26.959 26.959 26.959 qmin 36.858 36.860 36.857 qmax 94.760 94.852 94.825 amean 65.135 65.139 65.132 amin 64.383 64.393 64.408 amax 66.154 66.173 66.185 emean 0.415 0.415 0.415 emin 0.399 0.399 0.399 emax 0.433 0.434 0.433 imean 28.086 28.075 28.087 imin 27.460 27.461 27.460 imax 28.720 28.744 28.732 excite_mean 0.628 0.628 0.628 fracstop 1.000 1.000 1.000 cjmean 2.822 2.822 2.822 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 193.6 191.9 194.1 kozaiamp 179.9 180.0 180.0