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: 15GS56
# Created Wed May 8 01:17:04 2024
# Orbit generated from Bernstein formalism
# Fitting 47 observations of 47
# Arc: 2.35y
# First observation: 2015/02/17
# Last observation: 2017/06/24
Preliminary a, adot, b, bdot, g, gdot:
-0.000132 0.021942 0.000001 -0.000067 0.023101 0.000000
# Chi-squared of fit: 13.87 DOF: 88 RMS: 0.10
# Min/Max residuals: -0.25 0.30
# Exact a, adot, b, bdot, g, gdot:
1.465490E-05 2.181823E-02 3.130056E-07 -6.624930E-05 2.312491E-02 1.195147E-04
# Covariance matrix:
1.2372E-13 -1.1898E-14 -2.0582E-16 -4.7837E-17 9.4745E-14 1.5814E-12
-1.1898E-14 2.1001E-13 -1.4137E-16 -4.6494E-16 1.1843E-13 5.9058E-12
-2.0582E-16 -1.4137E-16 6.5482E-14 -5.0791E-14 -3.3683E-16 -5.7626E-15
-4.7837E-17 -4.6494E-16 -5.0791E-14 7.4790E-14 -2.9641E-16 -2.0521E-14
9.4745E-14 1.1843E-13 -3.3683E-16 -2.9641E-16 1.8198E-13 5.0210E-12
1.5814E-12 5.9058E-12 -5.7626E-15 -2.0521E-14 5.0210E-12 2.5823E-10
# lat0 lon0 xBary yBary zBary JD0
0.580271 -156.452188 0.810304 0.005825 -0.560507 2457070.998808
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 230.55890 +/- 1.854
Argument of Peri: 236.50318 +/- 1.854
Long of Asc Node: 96.66765 +/- 0.066
Inclination: 0.59527 +/- 0.000
Eccentricity: 0.01423595 +/- 0.0006
Semi-Major Axis: 43.41614652 +/- 0.0024
Time of Perihelion: 2494640.8310 +/- 538.2
Perihelion: 42.79807629 +/- 0.0247
Aphelion: 44.03421675 +/- 0.0247
Period (y) 286.0784 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.48072141 +/- 0.0007
Ecliptic Y -16.75656520 +/- 0.0003
Ecliptic Z 0.43795360 +/- 0.0000
Ecliptic XDOT 0.00101531 +/- 0.0000
Ecliptic YDOT -0.00237929 +/- 0.0000
Ecliptic ZDOT -0.00000761 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.81395995 +/- 0.0007
Geocenter to KBO 43.24340630 +/- 0.0008
# Hcoef: 7.83
The following table shows the complete astrometric record for 15GS56. 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 (15GS56) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.49803 13 28 02.502 -08 36 17.18 24.2r 15GS56 568 C~2nvT 2015 02 17.53937 13 28 02.410 -08 36 16.61 24.4r 15GS56 568 C~2nvT 2015 02 20.46602 13 27 55.862 -08 35 36.10 24.5r 15GS56 568 C~2nvT 2015 03 18.46654 13 26 33.338 -08 27 15.72 24.0r 15GS56 568 C~2nvT 2015 03 18.51775 13 26 33.138 -08 27 14.30 24.2r 15GS56 568 C~2nvT 2015 03 20.51543 13 26 25.347 -08 26 27.68 24.3r 15GS56 568 C~2nvT 2015 04 11.40623 13 24 52.803 -08 17 16.30 24.4r 15GS56 568 C~2nvT 2015 04 11.41033 13 24 52.795 -08 17 16.19 24.0r 15GS56 568 C~2nvT 2015 04 12.35890 13 24 48.631 -08 16 51.63 24.3r 15GS56 568 C~2nvT 2015 04 12.36301 13 24 48.621 -08 16 51.49 24.1r 15GS56 568 C~2nvT 2015 04 12.39986 13 24 48.459 -08 16 50.26 24.0r 15GS56 568 C~2nvT 2015 04 12.40393 13 24 48.439 -08 16 50.37 24.2r 15GS56 568 C~2nvT 2015 04 12.44683 13 24 48.246 -08 16 49.43 24.1r 15GS56 568 C~2nvT 2015 04 12.45094 13 24 48.222 -08 16 48.92 23.9r 15GS56 568 C~2nvT 2015 04 14.45679 13 24 39.412 -08 15 56.89 23.2r 15GS56 568 C~2nvT 2015 04 16.39466 13 24 30.910 -08 15 06.69 24.0r 15GS56 568 C~2nvT 2015 04 16.40115 13 24 30.858 -08 15 06.68 24.0r 15GS56 568 C~2nvT 2015 04 18.41739 13 24 22.043 -08 14 14.42 24.3r 15GS56 568 C~2nvT 2015 04 18.46519 13 24 21.832 -08 14 13.03 24.2r 15GS56 568 C~2nvT 2015 05 16.26178 13 22 29.008 -08 03 11.07 24.0r 15GS56 568 C~2nvT 2015 05 25.37165 13 21 58.711 -08 00 15.82 24.2r 15GS56 568 C~2nvT 2015 05 25.41355 13 21 58.583 -08 00 15.02 24.1r 15GS56 568 C~2nvT 2015 05 25.42921 13 21 58.522 -08 00 14.71 23.8r 15GS56 568 C~2nvT 2015 06 21.32182 13 21 00.291 -07 54 47.07 24.3r 15GS56 568 C~2nvT 2015 06 22.27415 13 20 59.216 -07 54 41.49 24.4r 15GS56 568 C~2nvT 2015 07 19.25818 13 20 59.605 -07 55 07.54 24.3r 15GS56 568 C~2nvT 2016 02 04.55924 13 33 04.941 -09 06 11.57 24.4w 15GS56 568 C~2nvT 2016 02 04.57138 13 33 04.931 -09 06 11.39 24.4w 15GS56 568 C~2nvT 2016 02 10.54718 13 32 57.725 -09 05 24.70 25.6w 15GS56 568 C~2nvT 2016 02 10.55937 13 32 57.687 -09 05 24.85 24.8w 15GS56 568 C~2nvT 2016 02 10.59675 13 32 57.628 -09 05 24.48 24.8w 15GS56 568 C~2nvT 2016 02 10.60896 13 32 57.639 -09 05 24.24 24.8w 15GS56 568 C~2nvT 2016 02 11.58117 13 32 56.159 -09 05 15.09 24.6w 15GS56 568 C~2nvT 2016 03 12.48022 13 31 37.331 -08 57 17.26 24.2w 15GS56 568 C~2nvT 2016 04 03.44530 13 30 09.378 -08 48 36.65 24.3w 15GS56 568 C~2nvT 2016 04 09.42510 13 29 43.323 -08 46 03.47 24.5w 15GS56 568 C~2nvT 2016 05 01.36857 13 28 08.217 -08 36 48.04 24.1w 15GS56 568 C~2nvT 2016 05 02.31122 13 28 04.313 -08 36 25.13 23.2w 15GS56 568 C~2nvT 2016 05 06.32100 13 27 47.981 -08 34 50.65 24.5w 15GS56 568 C~2nvT 2016 05 28.28409 13 26 30.706 -08 27 26.17 24.8w 15GS56 568 C~2nvT 2016 06 04.36558 13 26 11.500 -08 25 37.74 24.8w 15GS56 568 C~2nvT 2016 06 27.29295 13 25 34.113 -08 22 14.86 24.8w 15GS56 568 C~2nvT 2016 07 07.29554 13 25 30.890 -08 22 04.66 24.8w 15GS56 568 C~2nvT 2017 02 24.64250 13 37 11.663 -09 30 00.15 15GS56 568 C~2nvT 2017 03 29.44993 13 35 17.807 -09 18 48.46 23.9w 15GS56 568 C~2nvT 2017 03 29.45933 13 35 17.773 -09 18 48.36 24.1w 15GS56 568 C~2nvT 2017 06 24.28972 13 30 18.253 -08 50 19.16 24.7w 15GS56 568 C~2nvT
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 0.05 0.00 -0.07
2 0.0001 -1.48 0.03 0.03 -0.05
3 0.0081 -106.69 0.09 1.86 -0.13
4 0.0793 -1429.15 -0.05 14.80 -0.14
5 0.0795 -1432.43 -0.11 15.02 0.09
6 0.0849 -1557.08 -0.01 15.59 0.01
7 0.1449 -3037.21 -0.14 19.32 0.02
8 0.1449 -3037.36 0.01 19.38 0.08
9 0.1475 -3103.88 0.01 19.27 -0.05
10 0.1475 -3104.07 0.11 19.35 0.03
11 0.1476 -3106.76 0.05 19.60 0.30
12 0.1476 -3107.00 0.10 19.39 0.09
13 0.1477 -3110.01 0.15 19.20 -0.08
14 0.1477 -3110.53 -0.07 19.54 0.26
15 0.1532 -3251.31 0.01 19.37 0.14
16 0.1585 -3387.17 0.07 19.19 0.03
17 0.1585 -3387.89 -0.19 18.91 -0.25
18 0.1641 -3528.84 0.05 18.90 -0.09
19 0.1642 -3532.26 0.02 19.03 0.06
20 0.2403 -5334.42 -0.04 11.19 0.01
21 0.2652 -5817.67 0.03 6.35 -0.07
22 0.2653 -5819.73 0.06 6.38 0.00
23 0.2654 -5820.69 -0.12 6.33 -0.04
24 0.3390 -6746.39 -0.03 -11.97 -0.01
25 0.3416 -6763.30 -0.01 -12.75 -0.07
26 0.4155 -6748.21 -0.03 -34.78 -0.02
27 0.9639 4829.15 0.00 -22.83 -0.06
28 0.9639 4828.95 -0.00 -22.71 0.05
29 0.9803 4712.47 0.00 -18.29 0.19
30 0.9803 4712.01 -0.17 -18.63 -0.16
31 0.9804 4711.06 -0.19 -18.61 -0.15
32 0.9805 4711.12 0.17 -18.33 0.13
33 0.9831 4687.36 -0.07 -17.83 -0.06
34 1.0650 3425.21 0.04 -0.79 0.02
35 1.1251 2021.38 -0.04 5.05 0.02
36 1.1415 1605.85 -0.04 5.50 0.06
37 1.2016 90.17 0.15 2.57 -0.08
38 1.2041 27.90 0.08 2.52 0.11
39 1.2151 -232.10 0.12 0.98 -0.12
40 1.2753 -1461.57 -0.01 -9.35 0.04
41 1.2946 -1766.46 -0.01 -14.00 -0.08
42 1.3574 -2357.00 -0.12 -30.85 0.01
43 1.3848 -2405.21 0.02 -39.09 -0.08
44 2.0209 8755.14 -0.05 -22.70 -0.04
45 2.1108 6938.73 -0.01 -9.57 0.07
46 2.1108 6938.22 0.12 -9.66 -0.02
47 2.3485 2181.41 -0.03 -41.95 0.05
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.
15GS56 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.024 43.031 43.017 ecceobj 0.022 0.022 0.023 incobj 0.595 0.595 0.595 qmin 41.453 41.486 41.429 qmax 45.300 45.304 45.301 amean 43.295 43.302 43.288 amin 42.965 42.966 42.960 amax 43.639 43.641 43.626 emean 0.023 0.023 0.023 emin 0.003 0.003 0.004 emax 0.038 0.038 0.039 imean 1.439 1.434 1.445 imin 0.465 0.465 0.466 imax 2.096 2.092 2.101 excite_mean 0.034 0.034 0.035 fracstop 1.000 1.000 1.000 cjmean 3.092 3.092 3.091 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 186.5 187.0 186.1 kozaiamp 180.0 179.9 179.9