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: 15RY277
# Created Fri Apr 19 01:17:37 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 39 observations of 39
# Arc: 7.35y
# First observation: 2015/06/23
# Last observation: 2022/10/29
# Chi-squared of fit: 10.31 DOF: 72 RMS: 0.09
# Min/Max residuals: -0.31 0.26
# Exact a, adot, b, bdot, g, gdot:
1.596228E-05 2.738572E-02 8.914638E-07 1.053856E-03 2.569620E-02 6.692244E-03
# Covariance matrix:
1.2953E-13 -2.8423E-14 -2.5324E-15 -1.4780E-15 7.8204E-14 -1.4709E-13
-2.8423E-14 1.7802E-13 -7.3106E-15 8.4493E-15 9.0652E-14 9.8609E-13
-2.5324E-15 -7.3106E-15 5.0748E-14 -1.2453E-14 -7.5952E-15 -4.0924E-14
-1.4780E-15 8.4493E-15 -1.2453E-14 1.1023E-14 3.8407E-15 5.0193E-14
7.8204E-14 9.0652E-14 -7.5952E-15 3.8407E-15 1.4665E-13 4.7670E-13
-1.4709E-13 9.8609E-13 -4.0924E-14 5.0193E-14 4.7670E-13 5.8411E-12
# lat0 lon0 xBary yBary zBary JD0
2.610789 9.877065 1.006075 -0.006470 0.143887 2457197.024748
# Heliocentric elements and errors
Epoch: 2457196.5000 = 2015/06/23
Mean Anomaly: 37.34362 +/- 0.006
Argument of Peri: 346.62139 +/- 0.010
Long of Asc Node: 319.25780 +/- 0.003
Inclination: 3.46272 +/- 0.000
Eccentricity: 0.27441294 +/- 0.0001
Semi-Major Axis: 47.24320373 +/- 0.0041
Time of Perihelion: 2444893.2083 +/- 2.5
Perihelion: 34.27905735 +/- 0.0054
Aphelion: 60.20735012 +/- 0.0069
Period (y) 324.7261 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 38.32680926 +/- 0.0006
Ecliptic Y 5.65315229 +/- 0.0001
Ecliptic Z 1.77277366 +/- 0.0000
Ecliptic XDOT 0.00019372 +/- 0.0000
Ecliptic YDOT 0.00298968 +/- 0.0000
Ecliptic ZDOT 0.00014471 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.78187919 +/- 0.0006
Geocenter to KBO 38.91610618 +/- 0.0006
# Hcoef: 7.90
The following table shows the complete astrometric record for 15RY277. 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 (15RY277) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.52397 00 32 10.734 +06 18 45.61 23.9r 15RY277 568 C~2lVO 2015 07 14.60825 00 32 24.894 +06 22 04.09 23.9r 15RY277 568 C~2lVO 2015 07 19.58735 00 32 22.224 +06 22 12.15 24.0r 15RY277 568 C~2lVO 2015 08 13.48399 00 31 36.414 +06 19 15.09 23.9r 15RY277 568 C~2lVO 2015 08 13.53744 00 31 36.249 +06 19 14.41 23.6r 15RY277 568 C~2lVO 2015 08 19.54662 00 31 17.832 +06 17 40.33 23.6r 15RY277 568 C~2lVO 2015 08 19.58802 00 31 17.675 +06 17 40.19 24.0r 15RY277 568 C~2lVO 2015 08 19.61668 00 31 17.579 +06 17 39.62 23.5r 15RY277 568 C~2lVO 2015 08 20.42114 00 31 14.947 +06 17 25.49 24.1r 15RY277 568 C~2lVO 2015 08 20.47055 00 31 14.776 +06 17 24.61 24.0r 15RY277 568 C~2lVO 2015 09 07.56844 00 30 04.937 +06 10 56.01 23.7w 15RY277 568 C~2lVO 2015 09 09.39585 00 29 57.012 +06 10 09.82 23.7r 15RY277 568 C~2lVO 2015 09 09.43729 00 29 56.831 +06 10 08.76 23.7r 15RY277 568 C~2lVO 2015 09 09.47825 00 29 56.646 +06 10 07.70 23.9r 15RY277 568 C~2lVO 2015 09 10.50253 00 29 52.138 +06 09 41.20 24.0w 15RY277 568 C~2lVO 2015 09 18.46210 00 29 15.928 +06 06 05.71 24.1w 15RY277 568 C~2lVO 2015 10 08.34986 00 27 41.195 +05 56 16.55 23.9w 15RY277 568 C~2lVO 2015 10 08.40249 00 27 40.935 +05 56 14.92 23.9w 15RY277 568 C~2lVO 2015 10 09.31945 00 27 36.594 +05 55 47.03 23.8w 15RY277 568 C~2lVO 2015 11 10.44543 00 25 21.479 +05 40 38.29 24.3w 15RY277 568 C~2lVO 2015 11 10.47307 00 25 21.367 +05 40 37.74 23.9w 15RY277 568 C~2lVO 2015 11 15.26831 00 25 05.979 +05 38 46.30 23.8w 15RY277 568 C~2lVO 2015 12 08.24411 00 24 17.789 +05 32 20.66 24.1w 15RY277 568 C~2lVO 2016 01 01.30664 00 24 20.188 +05 31 01.52 24.1w 15RY277 568 C~2lVO 2016 09 06.44869 00 35 56.071 +06 52 16.44 15RY277 568 C~2lVO 2016 09 06.48996 00 35 55.878 +06 52 15.42 15RY277 568 C~2lVO 2016 09 26.44752 00 34 25.205 +06 43 16.55 24.1w 15RY277 568 C~2lVO 2016 11 03.37410 00 31 33.686 +06 24 43.95 15RY277 568 C~2lVO 2016 11 03.40304 00 31 33.565 +06 24 43.18 15RY277 568 C~2lVO 2016 11 03.43201 00 31 33.458 +06 24 42.24 15RY277 568 C~2lVO 2016 11 03.46810 00 31 33.311 +06 24 41.39 15RY277 568 C~2lVO 2016 11 04.25899 00 31 30.295 +06 24 20.45 15RY277 568 C~2lVO 2016 12 25.26033 00 29 56.767 +06 11 30.12 24.1w 15RY277 568 C~2lVO 2017 01 02.30275 00 30 03.986 +06 11 43.57 23.9w 15RY277 568 C~2lVO 2017 09 16.50931 00 40 59.575 +07 28 35.30 23.9w 15RY277 568 C~2lVO 2017 09 22.46275 00 40 32.234 +07 25 53.27 23.9w 15RY277 568 C~2lVO 2022 10 29.286620 01 05 54.136 +10 20 21.62 23.7G 15RY277 G37 C~5z6Q 2022 10 29.325160 01 05 53.956 +10 20 20.24 15RY277 G37 C~5z6Q 2022 10 29.363730 01 05 53.798 +10 20 19.31 15RY277 G37 C~5z6Q
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 0.03
2 0.0577 0.00 -0.04 0.00 -0.02
3 0.0714 0.00 0.03 0.00 -0.04
4 0.1395 0.00 0.12 0.00 -0.04
5 0.1397 0.00 -0.00 0.00 0.03
6 0.1561 0.00 0.14 0.00 -0.31
7 0.1562 0.00 -0.13 0.00 0.26
8 0.1563 0.00 -0.12 0.00 0.18
9 0.1585 0.00 0.04 0.00 -0.01
10 0.1586 0.00 0.01 0.00 -0.02
11 0.2082 0.00 -0.08 0.00 0.06
12 0.2132 0.00 -0.07 0.00 0.10
13 0.2133 0.00 -0.01 0.00 0.09
14 0.2134 0.00 -0.04 0.00 0.08
15 0.2162 0.00 0.03 0.00 -0.01
16 0.2380 0.00 -0.04 0.00 0.01
17 0.2925 0.00 0.00 0.00 0.02
18 0.2926 0.00 -0.07 0.00 -0.01
19 0.2951 0.00 0.05 0.00 0.00
20 0.3831 0.00 0.11 0.00 -0.19
21 0.3832 0.00 -0.15 0.00 -0.07
22 0.3963 0.00 0.03 0.00 0.01
23 0.4592 0.00 0.04 0.00 0.02
24 0.5251 0.00 0.05 0.00 0.01
25 1.2072 0.00 0.07 0.00 0.03
26 1.2073 0.00 -0.15 0.00 0.00
27 1.2619 0.00 -0.01 0.00 -0.05
28 1.3658 0.00 0.11 0.00 0.04
29 1.3659 0.00 0.00 0.00 0.05
30 1.3659 0.00 0.11 0.00 -0.12
31 1.3660 0.00 0.03 0.00 -0.00
32 1.3682 0.00 0.03 0.00 0.04
33 1.5078 0.00 0.13 0.00 -0.15
34 1.5299 0.00 -0.06 0.00 -0.01
35 2.2340 0.00 -0.00 0.00 0.02
36 2.2503 0.00 -0.07 0.00 0.05
37 7.3505 0.00 -0.03 0.00 0.14
38 7.3506 0.00 -0.12 0.00 -0.15
39 7.3507 0.00 0.12 0.00 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.
15RY277 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 47.801 47.801 47.801 ecceobj 0.281 0.281 0.281 incobj 3.456 3.456 3.456 qmin 33.682 33.688 33.650 qmax 63.143 63.117 63.088 amean 47.798 47.798 47.797 amin 47.045 47.051 47.092 amax 48.690 48.675 48.648 emean 0.282 0.281 0.281 emin 0.267 0.266 0.265 emax 0.298 0.297 0.297 imean 5.033 5.052 5.057 imin 4.862 4.842 4.761 imax 5.276 5.332 5.393 excite_mean 0.295 0.295 0.295 fracstop 1.000 1.000 1.000 cjmean 3.038 3.038 3.038 libcent 0 179.6 180.0 179.9 libamp 0 159.1 157.7 156.7 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 143.8 142.7 142.2 kozaiamp 180.0 180.0 180.0