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: 15RX278
# Created Fri Nov 22 02:10:27 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 37 observations of 37
# Arc: 9.28y
# First observation: 2015/06/23
# Last observation: 2024/10/01
# Chi-squared of fit: 7.87 DOF: 68 RMS: 0.08
# Min/Max residuals: -0.19 0.40
# Exact a, adot, b, bdot, g, gdot:
1.448905E-05 2.420764E-02 -6.239260E-06 -1.057651E-02 2.616757E-02 2.426693E-03
# Covariance matrix:
1.2375E-13 -1.0997E-14 -3.3613E-15 3.0296E-15 8.3461E-14 -2.0653E-14
-1.0997E-14 1.3611E-13 2.9807E-14 -6.1583E-14 8.6124E-14 6.2090E-13
-3.3613E-15 2.9807E-14 5.6525E-14 -2.2670E-14 1.6567E-14 1.4279E-13
3.0296E-15 -6.1583E-14 -2.2670E-14 3.5445E-14 -3.8725E-14 -2.9456E-13
8.3461E-14 8.6124E-14 1.6567E-14 -3.8725E-14 1.5489E-13 4.0180E-13
-2.0653E-14 6.2090E-13 1.4279E-13 -2.9456E-13 4.0180E-13 2.9687E-12
# lat0 lon0 xBary yBary zBary JD0
1.738587 9.428486 1.007162 -0.004042 0.136161 2457197.020648
# Heliocentric elements and errors
Epoch: 2457196.5000 = 2015/06/23
Mean Anomaly: 96.78517 +/- 0.041
Argument of Peri: 71.28526 +/- 0.035
Long of Asc Node: 191.90807 +/- 0.000
Inclination: 23.61302 +/- 0.000
Eccentricity: 0.06738230 +/- 0.0001
Semi-Major Axis: 37.62341191 +/- 0.0018
Time of Perihelion: 2434534.8250 +/- 9.8
Perihelion: 35.08825990 +/- 0.0028
Aphelion: 40.15856391 +/- 0.0030
Period (y) 230.7786 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 37.70874890 +/- 0.0006
Ecliptic Y 5.24192727 +/- 0.0001
Ecliptic Z 1.15925049 +/- 0.0000
Ecliptic XDOT -0.00013390 +/- 0.0000
Ecliptic YDOT 0.00253941 +/- 0.0000
Ecliptic ZDOT -0.00109832 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.08895289 +/- 0.0006
Geocenter to KBO 38.21519464 +/- 0.0006
# Hcoef: 7.97
The following table shows the complete astrometric record for 15RX278. 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 (15RX278) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.51987 00 31 54.293 +05 20 03.82 24.1r 15RX278 568 C~2lVS 2015 07 14.61234 00 32 09.528 +05 20 27.04 24.0r 15RX278 568 C~2lVS 2015 07 19.59146 00 32 07.008 +05 19 52.64 23.9r 15RX278 568 C~2lVS 2015 08 13.47989 00 31 21.435 +05 13 20.90 24.3r 15RX278 568 C~2lVS 2015 08 13.50863 00 31 21.375 +05 13 20.28 24.2r 15RX278 568 C~2lVS 2015 08 13.51278 00 31 21.340 +05 13 20.40 24.3r 15RX278 568 C~2lVS 2015 08 13.53335 00 31 21.275 +05 13 19.90 24.2r 15RX278 568 C~2lVS 2015 08 19.61259 00 31 02.537 +05 10 52.72 23.9r 15RX278 568 C~2lVS 2015 08 20.41706 00 30 59.888 +05 10 31.69 23.7r 15RX278 568 C~2lVS 2015 08 20.46647 00 30 59.719 +05 10 30.39 23.7r 15RX278 568 C~2lVS 2015 09 08.39679 00 29 45.819 +05 01 00.40 23.6r 15RX278 568 C~2lVS 2015 09 08.50096 00 29 45.349 +05 00 56.99 23.8r 15RX278 568 C~2lVS 2015 09 08.54456 00 29 45.157 +05 00 55.45 23.8r 15RX278 568 C~2lVS 2015 09 09.52009 00 29 40.871 +05 00 22.49 23.9w 15RX278 568 C~2lVS 2015 09 10.46103 00 29 36.700 +04 59 50.45 23.9w 15RX278 568 C~2lVS 2015 10 03.37463 00 27 48.461 +04 45 53.06 23.6w 15RX278 568 C~2lVS 2015 10 07.34146 00 27 29.337 +04 43 22.53 23.7r 15RX278 568 C~2lVS 2015 10 07.35040 00 27 29.288 +04 43 22.30 23.6r 15RX278 568 C~2lVS 2015 10 07.39951 00 27 29.040 +04 43 20.40 23.4r 15RX278 568 C~2lVS 2015 11 07.23924 00 25 15.072 +04 25 00.25 23.8w 15RX278 568 C~2lVS 2015 11 07.29177 00 25 14.878 +04 24 58.64 23.9w 15RX278 568 C~2lVS 2015 11 10.36966 00 25 04.083 +04 23 23.26 23.9w 15RX278 568 C~2lVS 2016 01 01.24474 00 24 03.910 +04 09 11.36 23.9w 15RX278 568 C~2lVS 2016 09 05.58308 00 36 08.212 +05 01 26.78 23.8w 15RX278 568 C~2lVS 2016 09 06.53219 00 36 04.194 +05 00 55.57 23.7w 15RX278 568 C~2lVS 2016 09 06.57428 00 36 04.014 +05 00 54.20 24.0w 15RX278 568 C~2lVS 2016 09 26.55688 00 34 32.253 +04 49 04.51 23.7w 15RX278 568 C~2lVS 2016 11 03.39726 00 31 39.320 +04 26 10.07 24.0w 15RX278 568 C~2lVS 2016 11 03.46220 00 31 39.054 +04 26 07.89 23.9w 15RX278 568 C~2lVS 2016 12 29.23783 00 30 05.690 +04 08 48.26 23.7w 15RX278 568 C~2lVS 2017 01 03.20730 00 30 11.689 +04 08 47.30 24.3w 15RX278 568 C~2lVS 2017 01 03.25288 00 30 11.753 +04 08 47.26 15RX278 568 C~2lVS 2017 09 22.47204 00 41 05.862 +04 50 53.30 15RX278 568 C~2lVS 2017 12 23.31121 00 36 06.288 +04 08 34.71 23.8w 15RX278 568 C~2lVS 2024 10 01.360880 01 23 23.730 +04 34 52.54 23.6G 15RX278 G37 C~8HAJ 2024 10 01.404740 01 23 23.525 +04 34 50.97 15RX278 G37 C~8HAJ 2024 10 01.448850 01 23 23.304 +04 34 49.47 15RX278 G37 C~8HAJ
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 -0.02
2 0.0577 0.00 -0.05 0.00 0.07
3 0.0714 0.00 0.01 0.00 0.02
4 0.1395 0.00 0.03 0.00 -0.19
5 0.1396 0.00 0.40 0.00 -0.16
6 0.1396 0.00 0.06 0.00 0.05
7 0.1397 0.00 -0.01 0.00 0.02
8 0.1563 0.00 -0.10 0.00 0.17
9 0.1585 0.00 -0.01 0.00 -0.01
10 0.1586 0.00 -0.01 0.00 -0.02
11 0.2105 0.00 -0.06 0.00 -0.00
12 0.2108 0.00 -0.13 0.00 0.08
13 0.2109 0.00 -0.08 0.00 0.01
14 0.2136 0.00 -0.01 0.00 0.01
15 0.2161 0.00 -0.02 0.00 0.03
16 0.2789 0.00 -0.10 0.00 0.03
17 0.2897 0.00 0.12 0.00 -0.10
18 0.2897 0.00 0.04 0.00 0.00
19 0.2899 0.00 -0.07 0.00 -0.03
20 0.3743 0.00 -0.02 0.00 0.00
21 0.3745 0.00 -0.02 0.00 0.05
22 0.3829 0.00 0.04 0.00 0.06
23 0.5249 0.00 -0.04 0.00 -0.00
24 1.2048 0.00 0.05 0.00 0.02
25 1.2074 0.00 0.03 0.00 0.02
26 1.2075 0.00 0.07 0.00 0.05
27 1.2623 0.00 0.02 0.00 -0.00
28 1.3659 0.00 0.04 0.00 0.02
29 1.3660 0.00 -0.08 0.00 -0.04
30 1.5187 0.00 0.10 0.00 0.04
31 1.5323 0.00 0.07 0.00 0.08
32 1.5325 0.00 0.09 0.00 -0.02
33 2.2504 0.00 -0.09 0.00 -0.16
34 2.5018 0.00 -0.08 0.00 0.02
35 9.2754 0.00 0.01 0.00 -0.03
36 9.2755 0.00 0.07 0.00 -0.03
37 9.2756 0.00 -0.10 0.00 0.06
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.
15RX278 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 37.924 37.940 37.909 ecceobj 0.068 0.069 0.066 incobj 23.506 23.507 23.506 qmin 34.576 34.558 34.443 qmax 41.223 41.276 41.252 amean 37.801 37.815 37.779 amin 37.504 37.517 37.470 amax 38.106 38.119 38.090 emean 0.059 0.061 0.055 emin 0.034 0.039 0.015 emax 0.083 0.083 0.084 imean 24.375 24.371 24.370 imin 23.303 23.302 23.274 imax 25.282 25.285 25.309 excite_mean 0.417 0.417 0.417 fracstop 1.000 1.000 1.000 cjmean 2.833 2.833 2.834 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 174.7 175.8 173.8 kozaiamp 180.0 180.0 180.0