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: 15GE57 # Created Wed May 8 01:17:04 2024 # Orbit generated from Bernstein formalism # Fitting 32 observations of 32 # Arc: 2.26y # First observation: 2015/02/17 # Last observation: 2017/05/24 Preliminary a, adot, b, bdot, g, gdot: -0.000105 0.023280 0.000001 -0.001067 0.023835 0.000000 # Chi-squared of fit: 7.34 DOF: 58 RMS: 0.08 # Min/Max residuals: -0.18 0.37 # Exact a, adot, b, bdot, g, gdot: 1.552544E-05 2.314729E-02 -1.545326E-06 -1.059538E-03 2.386449E-02 2.079466E-04 # Covariance matrix: 1.7799E-13 -5.7048E-15 9.1045E-16 -3.8892E-15 1.3214E-13 1.8981E-12 -5.7048E-15 3.2004E-13 3.9139E-15 -1.7425E-14 2.1012E-13 8.4415E-12 9.1045E-16 3.9139E-15 1.0011E-13 -7.4099E-14 3.3799E-15 1.5371E-13 -3.8892E-15 -1.7425E-14 -7.4099E-14 1.0116E-13 -1.4854E-14 -6.8639E-13 1.3214E-13 2.1012E-13 3.3799E-15 -1.4854E-14 2.7978E-13 7.2123E-12 1.8981E-12 8.4415E-12 1.5371E-13 -6.8639E-13 7.2123E-12 3.3234E-10 # lat0 lon0 xBary yBary zBary JD0 -0.116061 -153.662379 0.836513 -0.000908 -0.520617 2457071.011078 # Heliocentric elements and errors Epoch: 2457070.5000 = 2015/02/17 Mean Anomaly: 332.36578 +/- 2.142 Argument of Peri: 211.13227 +/- 2.233 Long of Asc Node: 22.69897 +/- 0.001 Inclination: 2.61998 +/- 0.001 Eccentricity: 0.01824802 +/- 0.0004 Semi-Major Axis: 43.12868111 +/- 0.0026 Time of Perihelion: 2465011.8132 +/- 615.7 Perihelion: 42.34166824 +/- 0.0160 Aphelion: 43.91569398 +/- 0.0160 Period (y) 283.2419 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -38.39387316 +/- 0.0008 Ecliptic Y -18.07203746 +/- 0.0004 Ecliptic Z -0.08495071 +/- 0.0000 Ecliptic XDOT 0.00115336 +/- 0.0000 Ecliptic YDOT -0.00239595 +/- 0.0000 Ecliptic ZDOT -0.00012151 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.43459969 +/- 0.0008 Geocenter to KBO 41.90327063 +/- 0.0009 # Hcoef: 8.12
The following table shows the complete astrometric record for 15GE57. 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 (15GE57) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.51030 13 37 32.333 -10 16 22.23 24.6r 15GE57 568 C~2nvV 2015 02 17.55169 13 37 32.245 -10 16 21.94 24.5r 15GE57 568 C~2nvV 2015 02 20.48249 13 37 26.027 -10 15 48.63 24.4r 15GE57 568 C~2nvV 2015 03 18.48843 13 36 04.416 -10 08 19.78 24.8r 15GE57 568 C~2nvV 2015 03 18.53000 13 36 04.260 -10 08 18.92 24.5r 15GE57 568 C~2nvV 2015 03 20.53205 13 35 56.359 -10 07 34.95 24.0r 15GE57 568 C~2nvV 2015 04 11.46838 13 34 21.381 -09 58 42.25 24.0r 15GE57 568 C~2nvV 2015 04 12.37527 13 34 17.252 -09 58 18.96 25.0r 15GE57 568 C~2nvV 2015 04 12.41621 13 34 17.076 -09 58 17.88 24.8r 15GE57 568 C~2nvV 2015 04 12.46324 13 34 16.860 -09 58 16.48 24.1r 15GE57 568 C~2nvV 2015 04 18.43380 13 33 49.640 -09 55 43.05 23.8r 15GE57 568 C~2nvV 2015 04 18.48152 13 33 49.422 -09 55 41.79 24.2r 15GE57 568 C~2nvV 2015 05 16.28057 13 31 50.362 -09 44 27.21 24.0r 15GE57 568 C~2nvV 2015 06 21.33417 13 30 12.337 -09 35 13.57 24.4r 15GE57 568 C~2nvV 2015 06 22.29068 13 30 11.019 -09 35 06.27 24.4r 15GE57 568 C~2nvV 2015 07 12.28470 13 30 01.176 -09 34 17.52 24.2r 15GE57 568 C~2nvV 2015 07 19.27455 13 30 05.875 -09 34 47.93 24.6r 15GE57 568 C~2nvV 2016 02 04.61835 13 42 47.097 -10 49 57.96 24.9w 15GE57 568 C~2nvV 2016 02 11.60157 13 42 39.632 -10 49 21.83 23.8w 15GE57 568 C~2nvV 2016 03 11.59247 13 41 26.567 -10 42 52.94 24.9w 15GE57 568 C~2nvV 2016 04 03.46553 13 39 54.084 -10 34 24.53 24.4w 15GE57 568 C~2nvV 2016 04 09.44668 13 39 27.240 -10 31 55.76 24.7w 15GE57 568 C~2nvV 2016 05 02.34368 13 37 43.814 -10 22 18.47 24.1w 15GE57 568 C~2nvV 2016 05 07.34704 13 37 22.331 -10 20 18.24 24.3w 15GE57 568 C~2nvV 2016 05 28.31649 13 36 03.586 -10 12 55.95 24.6w 15GE57 568 C~2nvV 2016 05 29.32340 13 36 00.393 -10 12 38.12 24.9w 15GE57 568 C~2nvV 2016 06 04.38582 13 35 42.514 -10 10 57.75 24.5w 15GE57 568 C~2nvV 2016 06 27.31141 13 34 59.255 -10 06 57.01 24.5w 15GE57 568 C~2nvV 2016 07 07.30770 13 34 53.794 -10 06 28.86 24.8w 15GE57 568 C~2nvV 2017 03 29.48279 13 45 18.238 -11 08 51.10 24.5w 15GE57 568 C~2nvV 2017 03 29.50431 13 45 18.150 -11 08 50.83 24.9w 15GE57 568 C~2nvV 2017 05 24.25153 13 41 17.523 -10 46 45.26 24.8w 15GE57 568 C~2nvV
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 -0.04 0.00 0.17
2 0.0001 -1.32 -0.01 -0.20 0.03
3 0.0081 -98.92 0.07 -2.41 -0.01
4 0.0793 -1384.51 -0.10 -21.33 -0.08
5 0.0795 -1386.97 0.05 -21.36 -0.07
6 0.0849 -1511.65 -0.03 -22.80 -0.10
7 0.1450 -3012.30 0.03 -37.28 -0.09
8 0.1475 -3077.61 -0.18 -37.83 -0.12
9 0.1476 -3080.42 -0.00 -37.77 -0.02
10 0.1477 -3083.91 -0.04 -37.63 0.17
11 0.1641 -3514.43 -0.07 -41.47 0.01
12 0.1642 -3517.89 -0.04 -41.48 0.06
13 0.2403 -5403.25 0.08 -57.00 0.02
14 0.3390 -6956.20 0.10 -73.77 0.02
15 0.3416 -6977.04 -0.01 -74.15 0.03
16 0.3964 -7130.53 0.10 -82.32 -0.05
17 0.4155 -7054.63 0.04 -85.05 -0.06
18 0.9640 5057.13 0.03 -207.72 -0.10
19 0.9831 4941.44 -0.04 -213.41 0.10
20 1.0625 3796.41 0.37 -236.89 0.04
21 1.1251 2341.09 -0.08 -253.34 0.04
22 1.1415 1918.18 -0.03 -257.37 -0.03
23 1.2042 286.96 0.09 -270.68 0.12
24 1.2179 -52.06 0.01 -273.46 -0.03
25 1.2753 -1295.58 -0.11 -283.08 0.05
26 1.2781 -1345.97 -0.02 -283.60 -0.04
27 1.2947 -1628.37 -0.07 -286.04 -0.00
28 1.3574 -2310.97 -0.05 -294.23 -0.02
29 1.3848 -2396.34 0.00 -297.38 0.02
30 2.1108 7543.01 -0.12 -470.79 0.06
31 2.1109 7541.70 0.04 -470.99 -0.13
32 2.2635 3755.53 0.02 -501.63 0.01
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.
15GE57 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.734 42.742 42.726 ecceobj 0.013 0.012 0.013 incobj 2.632 2.632 2.632 qmin 41.714 41.744 41.708 qmax 44.472 44.495 44.476 amean 43.012 43.019 43.004 amin 42.691 42.691 42.675 amax 43.335 43.355 43.335 emean 0.012 0.012 0.012 emin 0.000 0.000 0.000 emax 0.026 0.027 0.027 imean 2.328 2.329 2.326 imin 1.385 1.390 1.379 imax 3.143 3.144 3.148 excite_mean 0.043 0.043 0.043 fracstop 1.000 1.000 1.000 cjmean 3.088 3.088 3.088 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 163.4 161.8 166.2 kozaiamp 179.9 179.9 180.0