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: 15GE56
# Created Sun Nov 24 02:10:16 2024
# Orbit generated from Bernstein formalism
# Fitting 32 observations of 32
# Arc: 1.39y
# First observation: 2015/02/16
# Last observation: 2016/07/07
Preliminary a, adot, b, bdot, g, gdot:
-0.000112 0.024478 0.000002 -0.000011 0.024442 0.000000
# Chi-squared of fit: 15.49 DOF: 58 RMS: 0.12
# Min/Max residuals: -0.40 0.29
# Exact a, adot, b, bdot, g, gdot:
1.677448E-05 2.438568E-02 1.924490E-06 -1.090885E-05 2.448737E-02 -3.891794E-04
# Covariance matrix:
2.6151E-13 1.0170E-13 3.6978E-18 -1.7028E-16 3.2461E-13 1.5264E-11
1.0170E-13 4.4152E-13 1.1911E-17 -2.5648E-16 4.0522E-13 2.2534E-11
3.6978E-18 1.1911E-17 9.6282E-14 -9.5134E-14 1.2096E-17 1.4764E-15
-1.7028E-16 -2.5648E-16 -9.5134E-14 1.7825E-13 -3.6904E-16 -2.3838E-14
3.2461E-13 4.0522E-13 1.2096E-17 -3.6904E-16 6.4964E-13 3.2788E-11
1.5264E-11 2.2534E-11 1.4764E-15 -2.3838E-14 3.2788E-11 2.0677E-09
# lat0 lon0 xBary yBary zBary JD0
0.025628 -157.572121 0.808849 0.000398 -0.562314 2457070.023918
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 324.26340 +/- 1.375
Argument of Peri: 172.07286 +/- 1.990
Long of Asc Node: 68.84846 +/- 1.203
Inclination: 0.03440 +/- 0.001
Eccentricity: 0.05474114 +/- 0.0012
Semi-Major Axis: 43.28615626 +/- 0.0065
Time of Perihelion: 2467396.5142 +/- 397.4
Perihelion: 40.91662289 +/- 0.0531
Aphelion: 45.65568963 +/- 0.0532
Period (y) 284.7946 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -38.57958392 +/- 0.0012
Ecliptic Y -15.04717776 +/- 0.0005
Ecliptic Z 0.01834000 +/- 0.0000
Ecliptic XDOT 0.00107677 +/- 0.0000
Ecliptic YDOT -0.00250921 +/- 0.0000
Ecliptic ZDOT -0.00000115 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.41017013 +/- 0.0012
Geocenter to KBO 40.83737653 +/- 0.0013
# Hcoef: 8.57
The following table shows the complete astrometric record for 15GE56. 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 (15GE56) followed by the observatory code and reference code for the source of the astrometry.
2015 02 16.52314 13 23 00.091 -08 42 18.53 24.2r 15GE56 568 C~2nvR 2015 02 17.48578 13 22 57.924 -08 42 05.12 24.9r 15GE56 568 C~2nvR 2015 02 17.52702 13 22 57.833 -08 42 04.72 25.4r 15GE56 568 C~2nvR 2015 02 20.45766 13 22 50.719 -08 41 22.33 24.5r 15GE56 568 C~2nvR 2015 03 18.45231 13 21 22.517 -08 32 36.61 24.7r 15GE56 568 C~2nvR 2015 03 18.50553 13 21 22.286 -08 32 35.25 24.2r 15GE56 568 C~2nvR 2015 03 20.50715 13 21 13.984 -08 31 45.98 24.6r 15GE56 568 C~2nvR 2015 04 11.39801 13 19 36.403 -08 22 02.67 24.6r 15GE56 568 C~2nvR 2015 04 12.35068 13 19 32.032 -08 21 36.65 24.5r 15GE56 568 C~2nvR 2015 04 12.39167 13 19 31.806 -08 21 35.44 24.3r 15GE56 568 C~2nvR 2015 04 12.43732 13 19 31.627 -08 21 34.23 24.6r 15GE56 568 C~2nvR 2015 04 14.44843 13 19 22.354 -08 20 38.85 24.8r 15GE56 568 C~2nvR 2015 04 16.38638 13 19 13.460 -08 19 45.65 24.6r 15GE56 568 C~2nvR 2015 04 18.40224 13 19 04.209 -08 18 50.21 24.4r 15GE56 568 C~2nvR 2015 04 18.45015 13 19 03.986 -08 18 48.92 23.8r 15GE56 568 C~2nvR 2015 05 16.24826 13 17 07.087 -08 07 07.52 25.1r 15GE56 568 C~2nvR 2015 05 25.35722 13 16 36.168 -08 04 01.88 24.7r 15GE56 568 C~2nvR 2015 06 21.30955 13 15 38.507 -07 58 15.37 24.7r 15GE56 568 C~2nvR 2015 06 22.26587 13 15 37.533 -07 58 09.52 24.6r 15GE56 568 C~2nvR 2015 07 19.29173 13 15 42.645 -07 58 41.40 24.6r 15GE56 568 C~2nvR 2016 02 04.55924 13 28 35.776 -09 15 22.95 25.0w 15GE56 568 C~2nvR 2016 02 10.54717 13 28 27.787 -09 14 35.68 24.9w 15GE56 568 C~2nvR 2016 02 10.59675 13 28 27.707 -09 14 35.51 24.9w 15GE56 568 C~2nvR 2016 03 11.54434 13 27 04.956 -09 06 28.40 25.4w 15GE56 568 C~2nvR 2016 04 03.42913 13 25 28.432 -08 56 58.81 24.9w 15GE56 568 C~2nvR 2016 04 09.40893 13 25 01.008 -08 54 16.83 24.9w 15GE56 568 C~2nvR 2016 05 02.30311 13 23 17.495 -08 44 03.60 24.8w 15GE56 568 C~2nvR 2016 05 06.31289 13 23 00.553 -08 42 23.10 24.8w 15GE56 568 C~2nvR 2016 05 28.28005 13 21 41.175 -08 34 31.52 24.9w 15GE56 568 C~2nvR 2016 06 04.36154 13 21 21.809 -08 32 36.32 25.1w 15GE56 568 C~2nvR 2016 06 27.28890 13 20 45.698 -08 29 01.90 25.9w 15GE56 568 C~2nvR 2016 07 07.29150 13 20 43.900 -08 28 51.68 25.4w 15GE56 568 C~2nvR
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 -0.21 0.00 -0.40
2 0.0026 -34.81 -0.14 0.50 0.06
3 0.0027 -36.21 0.02 0.36 -0.05
4 0.0108 -149.90 -0.03 0.47 -0.04
5 0.0819 -1559.71 0.29 1.06 0.16
6 0.0821 -1563.40 0.15 1.05 0.17
7 0.0876 -1696.05 0.01 0.82 -0.06
8 0.1475 -3257.20 -0.05 1.10 0.17
9 0.1501 -3327.11 0.20 0.97 0.03
10 0.1502 -3330.67 -0.30 0.84 -0.08
11 0.1503 -3333.59 0.20 0.96 0.07
12 0.1559 -3481.97 0.02 0.84 -0.03
13 0.1612 -3624.33 0.15 0.78 -0.09
14 0.1667 -3772.46 -0.10 0.80 -0.03
15 0.1668 -3776.01 -0.09 0.76 -0.05
16 0.2429 -5648.86 0.19 0.37 0.05
17 0.2679 -6144.54 -0.12 -0.05 -0.02
18 0.3416 -7069.39 -0.08 -1.02 0.01
19 0.3443 -7085.01 0.03 -1.04 0.00
20 0.4183 -7002.57 -0.15 -2.00 0.19
21 0.9666 5356.00 -0.06 -2.10 -0.04
22 0.9830 5228.54 0.00 -1.73 0.18
23 0.9831 5227.38 0.16 -2.01 -0.07
24 1.0651 3908.08 -0.20 -1.40 -0.00
25 1.1277 2368.53 0.06 -1.18 0.07
26 1.1441 1931.01 -0.06 -1.33 -0.03
27 1.2068 278.61 0.06 -1.57 0.01
28 1.2178 8.06 0.01 -1.69 0.00
29 1.2779 -1260.06 -0.06 -2.37 -0.05
30 1.2973 -1569.57 0.01 -2.59 0.04
31 1.3601 -2146.63 -0.06 -3.55 -0.05
32 1.3875 -2175.19 0.15 -4.03 -0.11
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.
15GE56 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.879 42.890 42.869 ecceobj 0.049 0.052 0.047 incobj 0.035 0.035 0.035 qmin 40.286 40.171 40.349 qmax 46.214 46.336 46.108 amean 43.153 43.164 43.143 amin 42.829 42.835 42.815 amax 43.496 43.519 43.482 emean 0.043 0.046 0.041 emin 0.024 0.027 0.022 emax 0.063 0.065 0.061 imean 2.142 2.158 2.132 imin 1.076 1.087 1.068 imax 2.897 2.919 2.880 excite_mean 0.058 0.060 0.057 fracstop 1.000 1.000 1.000 cjmean 3.087 3.087 3.087 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 175.3 176.2 174.8 kozaiamp 179.9 179.9 179.9