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: 15RX245
# Created Sun Nov 24 02:10:23 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 38 observations of 38
# Arc: 6.37y
# First observation: 2015/06/23
# Last observation: 2021/11/05
# Chi-squared of fit: 7.14 DOF: 70 RMS: 0.08
# Min/Max residuals: -0.25 0.17
# Exact a, adot, b, bdot, g, gdot:
1.449027E-05 1.471411E-02 3.030766E-06 3.134471E-03 1.596401E-02 -8.499576E-03
# Covariance matrix:
1.4472E-13 -3.8289E-14 5.0462E-15 -9.2824E-15 7.0338E-14 -4.2326E-13
-3.8289E-14 1.6789E-13 -2.3615E-14 4.2301E-14 8.7803E-14 1.9932E-12
5.0462E-15 -2.3615E-14 6.2080E-14 -2.1058E-14 -1.1594E-14 -3.0027E-13
-9.2824E-15 4.2301E-14 -2.1058E-14 2.1353E-14 2.0523E-14 5.3823E-13
7.0338E-14 8.7803E-14 -1.1594E-14 2.0523E-14 1.3306E-13 9.8132E-13
-4.2326E-13 1.9932E-12 -3.0027E-13 5.3823E-13 9.8132E-13 2.5340E-11
# lat0 lon0 xBary yBary zBary JD0
0.054658 9.782043 1.006483 -0.000038 0.141119 2457197.098238
# Heliocentric elements and errors
Epoch: 2457196.5000 = 2015/06/23
Mean Anomaly: 357.88184 +/- 0.011
Argument of Peri: 65.40484 +/- 0.015
Long of Asc Node: 8.60551 +/- 0.000
Inclination: 12.16666 +/- 0.000
Eccentricity: 0.89173156 +/- 0.0004
Semi-Major Axis: 419.56510433 +/- 1.5111
Time of Perihelion: 2475665.9325 +/- 16859.0
Perihelion: 45.42565988 +/- 0.2386
Aphelion: 793.70454878 +/- 2.8639
Period (y) 8594.2354 +/- 46.43
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 61.75853740 +/- 0.0014
Ecliptic Y 9.62764471 +/- 0.0002
Ecliptic Z 0.06000214 +/- 0.0000
Ecliptic XDOT -0.00186821 +/- 0.0000
Ecliptic YDOT 0.00223282 +/- 0.0000
Ecliptic ZDOT 0.00053624 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 62.50503856 +/- 0.0014
Geocenter to KBO 62.64146661 +/- 0.0014
# Hcoef: 6.07
The following table shows the complete astrometric record for 15RX245. 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 (15RX245) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.59746 00 35 52.099 +03 55 31.49 24.5r 15RX245 568 C~2Gu0 2015 07 14.54187 00 35 59.593 +03 57 01.13 24.4r 15RX245 568 C~2Gu0 2015 07 19.50673 00 35 57.658 +03 56 58.93 24.6r 15RX245 568 C~2Gu0 2015 08 11.49525 00 35 31.303 +03 54 56.60 24.5r 15RX245 568 C~2Gu0 2015 08 11.53687 00 35 31.225 +03 54 56.19 24.3r 15RX245 568 C~2Gu0 2015 09 08.40090 00 34 27.188 +03 49 02.71 24.1r 15RX245 568 C~2Gu0 2015 09 08.50503 00 34 26.896 +03 49 00.99 23.9r 15RX245 568 C~2Gu0 2015 09 08.54864 00 34 26.770 +03 49 00.41 24.4r 15RX245 568 C~2Gu0 2015 09 09.52420 00 34 24.063 +03 48 44.97 24.3w 15RX245 568 C~2Gu0 2015 09 16.45310 00 34 04.181 +03 46 51.66 24.7w 15RX245 568 C~2Gu0 2015 10 03.37987 00 33 12.867 +03 41 56.23 23.5w 15RX245 568 C~2Gu0 2015 10 07.34557 00 33 00.674 +03 40 45.72 22.2r 15RX245 568 C~2Gu0 2015 10 07.36748 00 33 00.597 +03 40 45.48 23.2r 15RX245 568 C~2Gu0 2015 10 07.40358 00 33 00.488 +03 40 45.06 23.8r 15RX245 568 C~2Gu0 2015 11 07.24449 00 31 33.483 +03 32 26.21 24.5w 15RX245 568 C~2Gu0 2015 11 07.29726 00 31 33.353 +03 32 25.54 24.3w 15RX245 568 C~2Gu0 2015 11 10.38064 00 31 26.112 +03 31 44.85 24.4w 15RX245 568 C~2Gu0 2015 12 07.32092 00 30 41.393 +03 27 47.60 24.0w 15RX245 568 C~2Gu0 2016 01 01.24995 00 30 36.371 +03 28 00.13 24.2w 15RX245 568 C~2Gu0 2016 07 07.57912 00 38 51.452 +04 26 58.20 15RX245 568 C~2Gu0 2016 07 08.55858 00 38 51.583 +04 27 01.13 15RX245 568 C~2Gu0 2016 09 05.54486 00 37 26.033 +04 20 05.72 15RX245 568 C~2Gu0 2016 09 07.48422 00 37 20.727 +04 19 35.99 15RX245 568 C~2Gu0 2016 09 07.53054 00 37 20.597 +04 19 35.30 15RX245 568 C~2Gu0 2016 09 26.55688 00 36 24.388 +04 14 15.91 15RX245 568 C~2Gu0 2016 11 03.39726 00 34 32.579 +04 03 33.91 15RX245 568 C~2Gu0 2016 11 03.46220 00 34 32.394 +04 03 33.01 15RX245 568 C~2Gu0 2016 12 29.23783 00 33 23.985 +03 57 49.56 15RX245 568 C~2Gu0 2017 01 03.20730 00 33 26.681 +03 58 14.79 15RX245 568 C~2Gu0 2017 01 03.25288 00 33 26.705 +03 58 15.13 15RX245 568 C~2Gu0 2017 01 27.23800 00 34 00.853 +04 02 32.51 23.5w 15RX245 568 C~2Gu0 2017 01 28.23385 00 34 02.985 +04 02 47.71 24.1w 15RX245 568 C~2Gu0 2017 01 30.24057 00 34 07.447 +04 03 19.64 24.2w 15RX245 568 C~2Gu0 2020 10 20.124800 00 47 16.007 +06 14 29.18 23.7G 15RX245 G37 C~4Kz6 2020 10 20.172910 00 47 15.870 +06 14 28.17 15RX245 G37 C~4Kz6 2021 11 05.226610 00 49 39.560 +06 43 07.19 23.8G 15RX245 G37 C~5BZT 2021 11 05.281400 00 49 39.406 +06 43 06.50 15RX245 G37 C~5BZT 2021 11 05.336810 00 49 39.249 +06 43 05.56 15RX245 G37 C~5BZT
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 0.01 0.00 0.02
2 0.0573 0.00 -0.03 0.00 -0.06
3 0.0709 0.00 -0.18 0.00 0.07
4 0.1339 0.00 0.14 0.00 0.00
5 0.1340 0.00 0.09 0.00 -0.03
6 0.2103 0.00 0.05 0.00 0.04
7 0.2106 0.00 0.07 0.00 -0.05
8 0.2107 0.00 0.02 0.00 0.06
9 0.2134 0.00 0.07 0.00 0.02
10 0.2323 0.00 -0.13 0.00 0.06
11 0.2787 0.00 0.04 0.00 -0.13
12 0.2895 0.00 0.09 0.00 -0.25
13 0.2896 0.00 -0.04 0.00 -0.10
14 0.2897 0.00 0.02 0.00 0.12
15 0.3741 0.00 -0.00 0.00 -0.07
16 0.3743 0.00 -0.00 0.00 -0.03
17 0.3827 0.00 0.12 0.00 -0.04
18 0.4565 0.00 0.03 0.00 -0.01
19 0.5247 0.00 0.03 0.00 -0.05
20 1.0403 0.00 0.00 0.00 0.10
21 1.0430 0.00 -0.01 0.00 0.01
22 1.2045 0.00 -0.01 0.00 0.02
23 1.2098 0.00 -0.04 0.00 0.03
24 1.2099 0.00 -0.03 0.00 0.05
25 1.2620 0.00 0.05 0.00 -0.01
26 1.3656 0.00 0.17 0.00 -0.02
27 1.3658 0.00 -0.06 0.00 0.03
28 1.5185 0.00 -0.03 0.00 0.08
29 1.5321 0.00 0.03 0.00 0.08
30 1.5323 0.00 -0.05 0.00 0.14
31 1.5979 0.00 -0.05 0.00 0.07
32 1.6006 0.00 -0.08 0.00 -0.02
33 1.6061 0.00 -0.09 0.00 0.06
34 5.3266 0.00 -0.17 0.00 0.09
35 5.3267 0.00 0.04 0.00 -0.07
36 6.3700 0.00 0.05 0.00 -0.14
37 6.3701 0.00 0.05 0.00 0.04
38 6.3703 0.00 0.03 0.00 -0.02
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.
15RX245 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 464.355 464.321 464.389 ecceobj 0.902 0.902 0.902 incobj 12.097 12.097 12.097 qmin 41.027 41.224 41.218 qmax 926.426 907.172 901.512 amean 432.356 423.048 425.199 amin 399.846 393.830 398.874 amax 485.974 476.361 473.521 emean 0.895 0.892 0.893 emin 0.883 0.881 0.882 emax 0.906 0.904 0.904 imean 12.435 12.435 12.441 imin 12.238 12.245 12.247 imax 12.719 12.719 12.719 excite_mean 0.920 0.918 0.918 fracstop 1.000 1.000 1.000 cjmean 3.377 3.377 3.377 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 71.9 72.5 72.0 kozaiamp 9.2 9.6 9.7