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: 13JS65
# Created Sun Dec 22 02:09:29 2024
# Orbit generated from Bernstein formalism
# Fitting 24 observations of 24
# Arc: 3.13y
# First observation: 2013/04/10
# Last observation: 2016/05/29
Preliminary a, adot, b, bdot, g, gdot:
-0.000210 0.025584 -0.000003 0.004696 0.025422 0.000000
# Chi-squared of fit: 8.06 DOF: 42 RMS: 0.10
# Min/Max residuals: -0.23 0.20
# Exact a, adot, b, bdot, g, gdot:
1.608732E-05 2.546688E-02 2.722542E-06 4.668549E-03 2.567498E-02 4.730567E-04
# Covariance matrix:
2.2975E-13 -2.8256E-13 1.2697E-14 -5.3618E-14 1.2229E-13 -3.7198E-12
-2.8256E-13 9.3991E-13 -5.3574E-14 2.0824E-13 1.3020E-14 1.4492E-11
1.2697E-14 -5.3574E-14 9.9692E-14 -6.5018E-14 -3.6252E-15 -9.0284E-13
-5.3618E-14 2.0824E-13 -6.5018E-14 1.2703E-13 6.6247E-15 3.5004E-12
1.2229E-13 1.3020E-14 -3.6252E-15 6.6247E-15 2.2032E-13 4.8171E-13
-3.7198E-12 1.4492E-11 -9.0284E-13 3.5004E-12 4.8171E-13 2.4363E-10
# lat0 lon0 xBary yBary zBary JD0
9.021380 -117.840971 0.662860 0.118166 -0.744174 2456393.106028
# Heliocentric elements and errors
Epoch: 2456390.5000 = 2013/04/08
Mean Anomaly: 6.86446 +/- 1.748
Argument of Peri: 33.22817 +/- 1.817
Long of Asc Node: 201.64225 +/- 0.002
Inclination: 13.74162 +/- 0.000
Eccentricity: 0.01886559 +/- 0.0002
Semi-Major Axis: 40.45326786 +/- 0.0051
Time of Perihelion: 2454598.5207 +/- 456.4
Perihelion: 39.69009311 +/- 0.0088
Aphelion: 41.21644262 +/- 0.0089
Period (y) 257.2993 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -18.90145214 +/- 0.0003
Ecliptic Y -34.36845912 +/- 0.0006
Ecliptic Z 6.10737433 +/- 0.0001
Ecliptic XDOT 0.00240820 +/- 0.0000
Ecliptic YDOT -0.00124295 +/- 0.0000
Ecliptic ZDOT 0.00049972 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.69579192 +/- 0.0006
Geocenter to KBO 38.94842478 +/- 0.0007
# Hcoef: 8.43
The following table shows the complete astrometric record for 13JS65. 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 (13JS65) followed by the observatory code and reference code for the source of the astrometry.
2013 04 10.60525 16 07 34.601 -11 44 34.02 24.5r 13JS65 568 C~1XRg 2013 04 19.47613 16 07 01.988 -11 41 18.06 24.3r 13JS65 568 C~1XRg 2013 04 19.52900 16 07 01.780 -11 41 16.96 24.4r 13JS65 568 C~1XRg 2013 05 08.46327 16 05 37.646 -11 34 32.15 24.1r 13JS65 568 C~1XRg 2013 05 08.50727 16 05 37.429 -11 34 31.13 23.9r 13JS65 568 C~1XRg 2013 05 08.55109 16 05 37.220 -11 34 30.28 24.3r 13JS65 568 C~1XRg 2013 05 09.55840 16 05 32.338 -11 34 10.02 24.7r 13JS65 568 C~1XRg 2013 05 10.56374 16 05 27.445 -11 33 49.82 24.2r 13JS65 568 C~1XRg 2013 06 06.34733 16 03 13.812 -11 26 11.79 13JS65 568 C~1XRg 2013 06 06.43285 16 03 13.392 -11 26 10.67 13JS65 568 C~1XRg 2013 06 13.45880 16 02 39.725 -11 24 43.12 24.1r 13JS65 568 C~1XRg 2013 07 02.38481 16 01 19.512 -11 22 10.98 24.3r 13JS65 568 C~1XRg 2013 07 04.37595 16 01 12.232 -11 22 02.69 24.3r 13JS65 568 C~1XRg 2013 08 02.30664 16 00 01.056 -11 22 49.20 13JS65 568 C~1XRg 2013 08 05.29659 15 59 57.880 -11 23 11.59 24.1r 13JS65 568 C~1XRg 2014 03 06.61642 16 14 38.150 -11 56 53.83 13JS65 568 C~1XRg 2014 03 07.59105 16 14 38.086 -11 56 37.39 24.4r 13JS65 568 C~1XRg 2014 05 01.42971 16 12 16.428 -11 37 46.97 24.5r 13JS65 568 C~1XRg 2014 05 01.48091 16 12 16.202 -11 37 45.99 24.6r 13JS65 568 C~1XRg 2014 05 01.54140 16 12 15.913 -11 37 44.72 24.1r 13JS65 568 C~1XRg 2014 05 04.52933 16 12 02.243 -11 36 42.76 24.2r 13JS65 568 C~1XRg 2015 03 22.59933 16 20 26.168 -11 52 06.94 24.3r 13JS65 568 C~2LSX 2016 05 29.33946 16 22 08.641 -11 29 26.77 25.2R 13JS65 G37 C~2bms 2016 05 29.41787 16 22 08.259 -11 29 25.83 13JS65 G37 C~2bms
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 -0.08 0.00 0.03
2 0.0243 -507.51 0.09 101.39 0.06
3 0.0244 -510.72 0.20 101.89 0.01
4 0.0763 -1801.39 -0.05 263.39 -0.03
5 0.0764 -1804.71 -0.08 263.78 0.09
6 0.0765 -1807.89 0.01 264.03 0.07
7 0.0793 -1882.19 -0.08 270.18 -0.08
8 0.0820 -1956.64 -0.12 276.23 -0.06
9 0.1554 -3972.76 -0.11 347.55 0.09
10 0.1556 -3979.04 -0.02 347.45 0.06
11 0.1748 -4481.84 -0.23 337.46 0.01
12 0.2266 -5669.12 0.17 257.23 0.08
13 0.2321 -5775.81 0.11 244.47 -0.09
14 0.3113 -6794.09 0.03 -6.10 -0.13
15 0.3195 -6835.53 0.13 -37.24 0.00
16 0.9035 6248.66 0.12 433.87 0.20
17 0.9062 6244.72 0.01 449.86 0.00
18 1.0563 3990.33 -0.10 1177.00 -0.06
19 1.0565 3986.89 0.05 1177.35 -0.12
20 1.0566 3982.48 -0.10 1177.81 -0.14
21 1.0648 3773.54 0.00 1201.37 -0.03
22 1.9466 11229.67 0.12 1642.20 -0.11
23 3.1341 12473.85 -0.21 3251.65 0.14
24 3.1343 12468.13 0.13 3251.57 -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.
13JS65 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 40.348 40.365 40.331 ecceobj 0.017 0.017 0.016 incobj 13.771 13.772 13.771 qmin 39.277 39.246 39.287 qmax 42.162 42.117 42.083 amean 40.627 40.644 40.609 amin 40.327 40.344 40.315 amax 40.924 40.947 40.909 emean 0.014 0.015 0.013 emin 0.000 0.000 0.000 emax 0.030 0.030 0.029 imean 14.960 14.954 14.965 imin 13.883 13.886 13.888 imax 15.873 15.854 15.884 excite_mean 0.259 0.258 0.259 fracstop 1.000 1.000 1.000 cjmean 2.984 2.985 2.984 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 175.2 174.1 175.4 kozaiamp 180.0 180.0 180.0