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: 13JC65
# Created Fri Nov 22 02:09:26 2024
# Orbit generated from Bernstein formalism
# Fitting 33 observations of 33
# Arc: 3.07y
# First observation: 2013/04/09
# Last observation: 2016/05/06
Preliminary a, adot, b, bdot, g, gdot:
-0.000231 0.046966 -0.000003 -0.011995 0.035991 0.000000
# Chi-squared of fit: 8.41 DOF: 60 RMS: 0.09
# Min/Max residuals: -0.19 0.22
# Exact a, adot, b, bdot, g, gdot:
2.056800E-05 4.707610E-02 -5.597696E-06 -1.205649E-02 3.644529E-02 5.079155E-03
# Covariance matrix:
1.6885E-13 -1.3651E-13 -7.9953E-15 1.9842E-14 8.3580E-14 -6.4193E-13
-1.3651E-13 3.4340E-13 2.5680E-14 -7.6471E-14 8.6067E-14 2.4947E-12
-7.9953E-15 2.5680E-14 1.0364E-13 -7.0898E-14 5.6622E-15 2.3510E-13
1.9842E-14 -7.6471E-14 -7.0898E-14 9.3129E-14 -2.5643E-14 -7.0224E-13
8.3580E-14 8.6067E-14 5.6622E-15 -2.5643E-14 2.6340E-13 8.4848E-13
-6.4193E-13 2.4947E-12 2.3510E-13 -7.0224E-13 8.4848E-13 2.2912E-11
# lat0 lon0 xBary yBary zBary JD0
8.684252 -121.802279 0.623372 0.118706 -0.777052 2456392.048058
# Heliocentric elements and errors
Epoch: 2456390.5000 = 2013/04/08
Mean Anomaly: 11.44201 +/- 0.011
Argument of Peri: 127.08174 +/- 0.022
Long of Asc Node: 87.13191 +/- 0.001
Inclination: 16.43148 +/- 0.000
Eccentricity: 0.29284782 +/- 0.0001
Semi-Major Axis: 39.26873991 +/- 0.0038
Time of Perihelion: 2453533.7725 +/- 2.7
Perihelion: 27.76897521 +/- 0.0041
Aphelion: 50.76850462 +/- 0.0058
Period (y) 246.0813 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -15.23686562 +/- 0.0002
Ecliptic Y -23.38908956 +/- 0.0003
Ecliptic Z 4.14278265 +/- 0.0001
Ecliptic XDOT 0.00272840 +/- 0.0000
Ecliptic YDOT -0.00230010 +/- 0.0000
Ecliptic ZDOT -0.00083757 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 28.22010334 +/- 0.0003
Geocenter to KBO 27.43838707 +/- 0.0004
# Hcoef: 9.30
The following table shows the complete astrometric record for 13JC65. 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 (13JC65) followed by the observatory code and reference code for the source of the astrometry.
2013 04 09.54728 15 51 38.985 -11 16 58.56 23.8r 13JC65 568 C~1XRe 2013 04 10.51637 15 51 34.309 -11 16 38.13 23.9r 13JC65 568 C~1XRe 2013 04 10.55690 15 51 34.105 -11 16 37.23 23.7r 13JC65 568 C~1XRe 2013 04 19.56975 15 50 46.501 -11 13 26.15 23.7r 13JC65 568 C~1XRe 2013 05 07.44791 15 48 55.282 -11 07 23.67 23.6r 13JC65 568 C~1XRe 2013 05 07.49211 15 48 54.983 -11 07 22.86 23.7r 13JC65 568 C~1XRe 2013 05 07.53231 15 48 54.712 -11 07 22.03 13JC65 568 C~1XRe 2013 05 09.49257 15 48 41.600 -11 06 45.58 23.8r 13JC65 568 C~1XRe 2013 05 10.49969 15 48 34.814 -11 06 27.26 23.6r 13JC65 568 C~1XRe 2013 06 02.40261 15 45 59.155 -11 00 53.62 24.1r 13JC65 568 C~1XRe 2013 07 02.32030 15 43 07.191 -10 59 20.53 24.1r 13JC65 568 C~1XRe 2013 07 03.35826 15 43 02.511 -10 59 25.61 13JC65 568 C~1XRe 2014 03 06.59120 16 03 10.808 -12 39 49.95 24.1r 13JC65 568 C~1XRe 2014 03 07.56585 16 03 10.588 -12 39 39.24 23.9r 13JC65 568 C~1XRf 2014 04 05.59040 16 02 04.807 -12 32 16.37 24.2r 13JC65 568 C~1XRf 2014 04 30.44035 15 59 53.833 -12 24 31.01 24.1r 13JC65 568 C~1XRf 2014 04 30.49188 15 59 53.513 -12 24 29.80 23.8r 13JC65 568 C~1XRf 2014 04 30.54366 15 59 53.183 -12 24 29.23 23.5r 13JC65 568 C~1XRf 2014 04 30.54871 15 59 53.149 -12 24 28.72 23.9r 13JC65 568 C~1XRf 2014 05 05.47492 15 59 21.750 -12 23 00.06 23.4r 13JC65 568 C~1XRf 2014 05 05.47955 15 59 21.730 -12 23 00.13 23.5r 13JC65 568 C~1XRf 2014 05 06.41163 15 59 15.653 -12 22 43.64 23.8r 13JC65 568 C~1XRf 2014 05 06.47850 15 59 15.212 -12 22 42.53 23.4r 13JC65 568 C~1XRf 2014 05 22.47401 15 57 27.011 -12 18 28.96 23.7r 13JC65 568 C~1XRf 2014 05 22.49456 15 57 26.878 -12 18 28.45 23.5r 13JC65 568 C~1XRf 2014 05 24.45091 15 57 13.417 -12 18 02.08 24.1r 13JC65 568 C~1XRf 2014 06 02.44941 15 56 11.990 -12 16 16.47 23.7r 13JC65 568 C~1XRf 2014 07 01.37151 15 53 18.939 -12 14 20.88 23.6r 13JC65 568 C~1XRf 2014 07 18.35282 15 52 10.228 -12 16 22.30 24.1r 13JC65 568 C~1XRf 2015 03 22.57876 16 12 53.448 -13 47 19.69 23.6r 13JC65 568 C~1XRf 2015 04 18.50253 16 11 14.297 -13 40 28.78 23.5r 13JC65 568 C~2LSW 2016 05 06.53851 16 19 36.454 -14 45 48.14 23.6r 13JC65 568 C~2LSW 2016 05 06.60444 16 19 36.028 -14 45 47.28 23.5r 13JC65 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 -0.03 0.00 0.08
2 0.0027 -71.56 -0.11 5.25 0.03
3 0.0028 -74.69 -0.14 5.49 0.07
4 0.0274 -799.70 0.04 42.16 -0.09
5 0.0764 -2476.14 -0.02 43.85 0.02
6 0.0765 -2480.61 -0.00 43.69 0.00
7 0.0766 -2484.68 0.01 43.64 0.07
8 0.0820 -2681.02 0.00 37.52 0.03
9 0.0847 -2782.52 -0.03 33.81 -0.05
10 0.1474 -5092.63 0.19 -138.65 -0.13
11 0.2294 -7585.71 0.04 -604.16 -0.13
12 0.2322 -7651.90 -0.05 -624.35 -0.05
13 0.9063 10976.39 0.15 -2745.47 -0.07
14 0.9090 10971.04 0.03 -2735.62 -0.14
15 0.9885 9935.16 -0.02 -2497.89 0.11
16 1.0565 7958.35 -0.02 -2436.19 -0.10
17 1.0567 7953.50 0.04 -2435.97 0.19
18 1.0568 7948.65 0.11 -2436.41 -0.19
19 1.0568 7948.05 -0.00 -2436.02 0.22
20 1.0703 7478.97 -0.11 -2444.29 0.05
21 1.0703 7478.70 0.08 -2444.42 -0.06
22 1.0729 7388.06 -0.12 -2446.71 -0.03
23 1.0730 7381.50 -0.04 -2446.96 -0.07
24 1.1168 5776.18 -0.02 -2528.30 -0.07
25 1.1169 5774.17 0.09 -2528.21 0.18
26 1.1223 5575.57 0.12 -2543.59 0.06
27 1.1469 4672.49 0.03 -2628.69 -0.06
28 1.2261 2167.72 -0.03 -3050.92 0.20
29 1.2726 1209.29 -0.10 -3383.93 0.00
30 1.9494 20176.37 -0.00 -5036.63 0.03
31 2.0231 18665.39 -0.08 -4912.81 -0.01
32 3.0746 26685.97 -0.02 -7393.43 -0.02
33 3.0748 26679.63 0.01 -7393.73 -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.
13JC65 quality flag:3 Type: 3:2E 3:2E 3:2E Type: 6:4II 6:4II 6:4II axisobj 39.106 39.119 39.092 ecceobj 0.290 0.290 0.289 incobj 16.421 16.421 16.421 qmin 27.217 27.209 27.191 qmax 52.102 52.238 52.258 amean 39.454 39.454 39.454 amin 39.094 39.118 39.092 amax 39.891 39.902 39.924 emean 0.255 0.255 0.255 emin 0.187 0.187 0.186 emax 0.309 0.310 0.310 imean 17.647 17.662 17.618 imin 14.906 14.904 14.920 imax 20.542 20.540 20.526 excite_mean 0.399 0.399 0.399 fracstop 1.000 1.000 1.000 cjmean 2.870 2.870 2.870 libcent 0 180.8 180.5 180.8 libamp 0 33.4 31.0 38.0 libcent 1 192.7 192.0 191.9 libamp 1 146.0 141.0 157.4 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 97.8 97.7 98.0 kozaiamp 52.8 52.6 53.1