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: 13JZ64
# Created Fri Nov 22 02:09:26 2024
# Orbit generated from Bernstein formalism
# Fitting 33 observations of 33
# Arc: 3.82y
# First observation: 2013/04/09
# Last observation: 2017/02/02
Preliminary a, adot, b, bdot, g, gdot:
0.000087 0.042103 -0.000020 -0.003679 0.033163 0.000000
# Chi-squared of fit: 10.22 DOF: 60 RMS: 0.10
# Min/Max residuals: -0.26 0.24
# Exact a, adot, b, bdot, g, gdot:
1.901507E-05 4.258147E-02 -1.709025E-06 -3.729273E-03 3.380281E-02 -8.796755E-04
# Covariance matrix:
1.3811E-13 -9.9242E-14 -4.6231E-15 6.7954E-15 8.5296E-14 -3.2244E-13
-9.9242E-14 2.9011E-13 5.4305E-15 -1.9781E-14 1.4801E-13 1.7961E-12
-4.6231E-15 5.4305E-15 9.1328E-14 -6.0734E-14 -6.4215E-15 4.4977E-14
6.7954E-15 -1.9781E-14 -6.0734E-14 7.9103E-14 -4.8808E-15 -1.6604E-13
8.5296E-14 1.4801E-13 -6.4215E-15 -4.8808E-15 4.1971E-13 1.2724E-12
-3.2244E-13 1.7961E-12 4.4977E-14 -1.6604E-13 1.2724E-12 1.5142E-11
# lat0 lon0 xBary yBary zBary JD0
9.152302 -123.059200 0.606140 0.127176 -0.789246 2456392.036308
# Heliocentric elements and errors
Epoch: 2456390.5000 = 2013/04/08
Mean Anomaly: 352.63257 +/- 0.017
Argument of Peri: 130.37623 +/- 0.027
Long of Asc Node: 117.08458 +/- 0.002
Inclination: 10.13499 +/- 0.000
Eccentricity: 0.23022038 +/- 0.0001
Semi-Major Axis: 39.29835660 +/- 0.0040
Time of Perihelion: 2458232.0074 +/- 4.1
Perihelion: 30.25107416 +/- 0.0040
Aphelion: 48.34563905 +/- 0.0055
Period (y) 246.3598 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -16.87538061 +/- 0.0003
Ecliptic Y -24.81548979 +/- 0.0005
Ecliptic Z 4.70549290 +/- 0.0001
Ecliptic XDOT 0.00289639 +/- 0.0000
Ecliptic YDOT -0.00186234 +/- 0.0000
Ecliptic ZDOT -0.00030940 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 30.37644923 +/- 0.0004
Geocenter to KBO 29.58333880 +/- 0.0006
# Hcoef: 9.07
The following table shows the complete astrometric record for 13JZ64. 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 (13JZ64) followed by the observatory code and reference code for the source of the astrometry.
2013 04 09.53553 15 47 07.577 -10 33 22.68 24.2r 13JZ64 568 C~1XRe 2013 04 10.50462 15 47 03.174 -10 32 58.50 23.9r 13JZ64 568 C~1XRe 2013 04 10.54490 15 47 02.987 -10 32 57.56 23.9r 13JZ64 568 C~1XRe 2013 04 19.55776 15 46 18.400 -10 29 12.51 23.8r 13JZ64 568 C~1XRe 2013 05 04.43329 15 44 53.421 -10 23 14.57 24.2r 13JZ64 568 C~1XRe 2013 05 04.43834 15 44 53.387 -10 23 14.73 23.6r 13JZ64 568 C~1XRe 2013 05 04.44379 15 44 53.369 -10 23 14.59 23.8r 13JZ64 568 C~1XRe 2013 05 04.55613 15 44 52.663 -10 23 11.96 13JZ64 568 C~1XRe 2013 05 07.43599 15 44 35.052 -10 22 06.88 23.5r 13JZ64 568 C~1XRe 2013 05 07.48020 15 44 34.772 -10 22 05.89 23.7r 13JZ64 568 C~1XRe 2013 05 07.52039 15 44 34.520 -10 22 04.94 23.8r 13JZ64 568 C~1XRe 2013 05 09.48057 15 44 22.393 -10 21 21.74 23.9r 13JZ64 568 C~1XRe 2013 05 10.48774 15 44 16.132 -10 20 59.94 23.6r 13JZ64 568 C~1XRe 2014 02 28.60312 15 57 59.653 -11 31 03.07 24.0r 13JZ64 568 C~2LSW 2014 04 04.50472 15 56 59.622 -11 19 42.64 23.9r 13JZ64 568 C~1XRe 2014 04 04.52001 15 56 59.563 -11 19 42.28 23.7r 13JZ64 568 C~1XRe 2014 04 04.56390 15 56 59.397 -11 19 41.46 23.5r 13JZ64 568 C~1XRe 2014 04 04.57011 15 56 59.357 -11 19 41.38 23.5r 13JZ64 568 C~1XRe 2014 04 30.40515 15 54 52.422 -11 09 39.38 23.4r 13JZ64 568 C~1XRe 2014 04 30.45667 15 54 52.113 -11 09 38.29 23.7r 13JZ64 568 C~1XRe 2014 04 30.50841 15 54 51.798 -11 09 37.10 23.5r 13JZ64 568 C~1XRe 2014 05 05.45815 15 54 22.426 -11 07 47.39 23.7r 13JZ64 568 C~1XRe 2014 05 06.39998 15 54 16.723 -11 07 27.07 24.0r 13JZ64 568 C~1XRe 2014 05 06.46686 15 54 16.312 -11 07 25.63 23.5r 13JZ64 568 C~1XRe 2014 05 06.54291 15 54 15.836 -11 07 24.01 23.9r 13JZ64 568 C~1XRe 2014 05 22.48569 15 52 35.834 -11 02 11.11 24.2r 13JZ64 568 C~1XRe 2014 05 22.49847 15 52 35.763 -11 02 11.05 23.9r 13JZ64 568 C~1XRe 2014 05 24.47100 15 52 23.228 -11 01 37.28 23.7r 13JZ64 568 C~1XRe 2014 06 02.45329 15 51 26.762 -10 59 21.43 23.8r 13JZ64 568 C~1XRe 2014 07 01.36375 15 48 48.819 -10 55 58.82 24.0r 13JZ64 568 C~1XRe 2014 07 18.33716 15 47 47.219 -10 57 12.78 24.1r 13JZ64 568 C~1XRe 2015 04 20.62472 16 05 24.677 -11 57 00.02 23.9r 13JZ64 568 C~1XRe 2017 02 02.65595 16 25 00.639 -13 36 32.61 24.8w 13JZ64 568 C~2LSW
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 0.19 0.00 -0.01
2 0.0027 -68.66 -0.02 9.25 -0.03
3 0.0028 -71.56 0.02 9.56 -0.08
4 0.0274 -762.61 -0.10 83.67 0.05
5 0.0682 -2064.45 -0.04 154.51 0.22
6 0.0682 -2064.90 -0.02 154.24 -0.05
7 0.0682 -2065.19 0.21 154.32 0.01
8 0.0685 -2075.93 0.03 154.56 0.02
9 0.0764 -2343.78 -0.07 160.18 -0.03
10 0.0765 -2348.02 -0.11 160.22 -0.03
11 0.0766 -2351.86 -0.11 160.32 0.02
12 0.0820 -2535.95 -0.07 162.57 0.01
13 0.0847 -2630.89 0.10 163.23 -0.00
14 0.8900 10129.64 0.01 -1302.40 -0.03
15 0.9855 9120.41 0.06 -824.21 0.08
16 0.9856 9119.48 0.07 -824.04 0.09
17 0.9857 9116.92 0.18 -823.76 -0.08
18 0.9857 9116.32 -0.03 -823.81 -0.19
19 1.0565 7160.27 -0.11 -634.37 -0.01
20 1.0566 7155.59 -0.14 -634.28 -0.09
21 1.0567 7150.80 -0.25 -634.11 -0.09
22 1.0703 6704.55 0.05 -619.74 0.09
23 1.0729 6618.12 0.07 -617.94 0.03
24 1.0730 6611.90 0.12 -617.83 0.05
25 1.0733 6604.70 0.07 -617.75 0.01
26 1.1169 5098.56 -0.26 -629.66 0.05
27 1.1169 5097.53 -0.06 -629.83 -0.07
28 1.1223 4909.93 -0.08 -636.80 0.03
29 1.1469 4068.45 0.07 -684.51 -0.01
30 1.2261 1753.92 0.24 -994.60 0.07
31 1.2726 885.11 0.01 -1266.14 0.03
32 2.0290 16876.05 -0.04 -1462.84 -0.16
33 3.8196 35218.10 0.02 -3978.28 0.08
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.
13JZ64 quality flag:3 Type: 3:2E 3:2E 3:2E Type: 6:4II 6:4II 6:4II axisobj 39.161 39.172 39.151 ecceobj 0.228 0.229 0.228 incobj 10.130 10.130 10.130 qmin 28.545 28.582 28.558 qmax 50.743 50.823 50.809 amean 39.455 39.455 39.455 amin 39.100 39.092 39.113 amax 39.874 39.879 39.876 emean 0.241 0.241 0.241 emin 0.204 0.204 0.204 emax 0.275 0.276 0.276 imean 8.082 8.101 8.072 imin 5.637 5.684 5.610 imax 10.648 10.639 10.652 excite_mean 0.281 0.281 0.281 fracstop 1.000 1.000 1.000 cjmean 2.962 2.962 2.962 libcent 0 180.6 180.3 179.9 libamp 0 23.4 28.2 19.0 libcent 1 173.3 173.4 172.5 libamp 1 142.5 151.0 134.9 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 81.4 81.7 81.2 kozaiamp 54.3 53.4 54.8