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: 15RK277
# Created Fri Nov 22 02:10:26 2024
# Orbit generated from Bernstein formalism
# Fitting 50 observations of 50
# Arc: 1.53y
# First observation: 2015/06/23
# Last observation: 2017/01/02
Preliminary a, adot, b, bdot, g, gdot:
0.000831 0.837536 0.006781 -0.135987 0.261048 0.000000
# Chi-squared of fit: 144.50 DOF: 94 RMS: 0.30
# Min/Max residuals: -0.89 0.70
# Exact a, adot, b, bdot, g, gdot:
4.826266E-05 4.744828E-01 -6.419874E-06 -7.601199E-02 1.522829E-01 -1.293943E-01
# Covariance matrix:
2.6589E-13 -1.7175E-12 -7.2622E-14 3.3928E-13 -2.5726E-13 -1.7965E-12
-1.7175E-12 1.4716E-11 6.2823E-13 -2.9543E-12 2.4549E-12 1.5762E-11
-7.2622E-14 6.2823E-13 8.6390E-14 -1.7294E-13 1.0365E-13 6.7500E-13
3.3928E-13 -2.9543E-12 -1.7294E-13 6.4030E-13 -4.9049E-13 -3.1740E-12
-2.5726E-13 2.4549E-12 1.0365E-13 -4.9049E-13 4.4188E-13 2.6360E-12
-1.7965E-12 1.5762E-11 6.7500E-13 -3.1740E-12 2.6360E-12 1.6934E-11
# lat0 lon0 xBary yBary zBary JD0
2.422616 9.490568 1.007014 -0.005714 0.137193 2457197.020648
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 355.86954 +/- 0.000
Argument of Peri: 219.27588 +/- 0.001
Long of Asc Node: 195.31074 +/- 0.000
Inclination: 9.53780 +/- 0.000
Eccentricity: 0.80254346 +/- 0.0000
Semi-Major Axis: 26.85382285 +/- 0.0009
Time of Perihelion: 2457773.6813 +/- 0.0
Perihelion: 5.30246282 +/- 0.0002
Aphelion: 48.40518287 +/- 0.0016
Period (y) 139.1609 +/- 0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 6.49820592 +/- 0.0000
Ecliptic Y 0.06607796 +/- 0.0000
Ecliptic Z 0.27759469 +/- 0.0000
Ecliptic XDOT -0.00364451 +/- 0.0000
Ecliptic YDOT 0.00803388 +/- 0.0000
Ecliptic ZDOT -0.00146365 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 6.50446810 +/- 0.0000
Geocenter to KBO 6.56672730 +/- 0.0000
# Hcoef: 15.35
The following table shows the complete astrometric record for 15RK277. 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 (15RK277) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.51987 00 31 02.996 +05 59 14.89 24.1r 15RK277 568 C~2jiA 2015 07 19.52115 00 37 52.516 +06 32 11.78 23.8r 15RK277 568 C~2jiA 2015 08 13.54973 00 39 01.706 +06 26 21.35 23.0r 15RK277 568 C~2jiA 2015 08 19.55891 00 38 29.010 +06 19 05.46 23.4r 15RK277 568 C~2jiA 2015 08 19.62908 00 38 28.502 +06 18 59.65 23.3r 15RK277 568 C~2jiA 2015 08 20.43431 00 38 22.827 +06 17 50.70 23.4r 15RK277 568 C~2jiA 2015 08 20.48358 00 38 22.436 +06 17 46.54 23.2r 15RK277 568 C~2jiA 2015 09 07.57262 00 34 54.515 +05 42 14.00 23.5w 15RK277 568 C~2jiA 2015 09 09.40034 00 34 26.313 +05 37 41.93 23.3r 15RK277 568 C~2jiA 2015 09 09.44140 00 34 25.640 +05 37 35.73 23.4r 15RK277 568 C~2jiA 2015 09 09.48235 00 34 24.965 +05 37 29.56 23.4r 15RK277 568 C~2jiA 2015 09 10.50662 00 34 08.582 +05 34 52.89 23.5w 15RK277 568 C~2jiA 2015 09 16.45837 00 32 27.294 +05 18 51.70 23.3w 15RK277 568 C~2jiA 2015 09 18.45683 00 31 51.232 +05 13 11.22 23.4w 15RK277 568 C~2jiA 2015 09 18.49368 00 31 50.553 +05 13 05.05 23.0w 15RK277 568 C~2jiA 2015 10 03.37463 00 27 03.471 +04 27 45.98 23.3w 15RK277 568 C~2jiA 2015 10 07.34146 00 25 45.234 +04 15 13.13 22.7r 15RK277 568 C~2jiA 2015 10 07.35041 00 25 45.055 +04 15 11.42 22.8r 15RK277 568 C~2jiA 2015 10 07.39952 00 25 44.064 +04 15 02.11 22.9r 15RK277 568 C~2jiA 2015 11 07.21826 00 17 29.020 +02 47 20.18 23.4w 15RK277 568 C~2jiA 2015 11 07.27072 00 17 28.446 +02 47 13.12 23.5w 15RK277 568 C~2jiA 2015 11 08.31542 00 17 17.874 +02 44 53.54 23.4w 15RK277 568 C~2jiA 2015 11 10.34786 00 16 58.878 +02 40 32.02 23.4w 15RK277 568 C~2jiA 2015 12 07.28927 00 16 28.624 +02 07 34.63 23.7w 15RK277 568 C~2jiA 2016 01 01.22912 00 22 32.354 +02 21 52.80 24.0w 15RK277 568 C~2jiA 2016 09 05.55814 03 13 07.252 +13 25 21.24 15RK277 568 C~2jiA 2016 09 06.50690 03 13 16.089 +13 24 10.85 15RK277 568 C~2jiA 2016 09 06.54949 03 13 16.439 +13 24 07.66 15RK277 568 C~2jiA 2016 09 27.46148 03 13 52.978 +12 47 17.05 23.2w 15RK277 568 C~2jiA 2016 10 26.50481 03 07 21.407 +11 30 43.85 15RK277 568 C~2jiA 2016 10 26.50990 03 07 21.287 +11 30 42.82 15RK277 568 C~2jiA 2016 10 26.51417 03 07 21.243 +11 30 42.30 15RK277 568 C~2jiA 2016 10 26.51845 03 07 21.094 +11 30 41.17 15RK277 568 C~2jiA 2016 10 26.52700 03 07 20.945 +11 30 40.12 15RK277 568 C~2jiA 2016 10 26.53127 03 07 20.856 +11 30 39.18 15RK277 568 C~2jiA 2016 10 26.53560 03 07 20.748 +11 30 38.58 15RK277 568 C~2jiA 2016 10 26.53988 03 07 20.674 +11 30 37.21 15RK277 568 C~2jiA 2016 10 26.54416 03 07 20.613 +11 30 37.18 15RK277 568 C~2jiA 2016 10 26.54843 03 07 20.509 +11 30 36.42 15RK277 568 C~2jiA 2016 10 26.55273 03 07 20.425 +11 30 35.74 15RK277 568 C~2jiA 2016 10 26.56130 03 07 20.223 +11 30 33.86 15RK277 568 C~2jiA 2016 10 26.56557 03 07 20.176 +11 30 33.45 15RK277 568 C~2jiA 2016 10 26.57063 03 07 20.036 +11 30 32.36 15RK277 568 C~2jiA 2016 11 03.50445 03 04 35.019 +11 07 56.80 15RK277 568 C~2jiA 2016 11 03.56832 03 04 33.600 +11 07 46.01 22.8w 15RK277 568 C~2jiA 2016 12 28.37745 02 50 26.331 +09 34 54.05 15RK277 568 C~2jiA 2016 12 29.34301 02 50 25.079 +09 34 52.56 15RK277 568 C~2jiA 2017 01 01.23830 02 50 25.263 +09 35 10.82 15RK277 568 C~2jiA 2017 01 01.30511 02 50 25.287 +09 35 11.60 15RK277 568 C~2jiA 2017 01 02.35003 02 50 26.804 +09 35 26.74 15RK277 568 C~2jiA
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 0.21 0.00 -0.30
2 0.0712 6393.79 -0.29 -582.16 -0.27
3 0.1397 7206.62 -0.21 -1308.60 -0.26
4 0.1562 6586.87 -0.72 -1519.16 -0.01
5 0.1564 6577.62 -0.36 -1521.55 -0.06
6 0.1586 6472.67 -0.43 -1551.89 -0.20
7 0.1587 6465.67 -0.39 -1553.44 -0.11
8 0.2082 2774.10 -0.08 -2298.77 -0.01
9 0.2132 2279.98 -0.23 -2383.49 0.05
10 0.2133 2268.30 -0.23 -2385.24 0.05
11 0.2134 2256.61 -0.23 -2386.95 0.08
12 0.2163 1970.09 -0.12 -2434.84 -0.00
13 0.2325 201.21 0.01 -2723.16 0.05
14 0.2380 -428.08 -0.01 -2823.86 -0.13
15 0.2381 -439.83 0.31 -2825.53 -0.07
16 0.2789 -5457.83 0.15 -3629.05 -0.05
17 0.2897 -6832.01 0.23 -3857.28 0.01
18 0.2897 -6835.15 0.25 -3857.79 -0.01
19 0.2899 -6852.47 0.33 -3860.47 -0.03
20 0.3743 -15776.83 0.24 -5751.78 0.17
21 0.3744 -15787.60 0.27 -5754.85 0.19
22 0.3773 -15989.86 0.55 -5820.17 0.21
23 0.3828 -16357.68 0.50 -5947.42 0.18
24 0.4566 -17572.86 0.36 -7589.01 0.21
25 0.5249 -12199.21 -0.21 -8968.53 0.27
26 1.2048 174145.85 0.39 -29332.46 0.25
27 1.2074 174332.68 0.27 -29476.92 0.27
28 1.2075 174339.92 0.18 -29483.15 0.27
29 1.2647 174324.67 0.70 -32498.85 0.14
30 1.3442 163075.57 -0.02 -35605.53 0.03
31 1.3443 163072.34 -0.43 -35605.98 -0.06
32 1.3443 163071.11 0.69 -35606.32 -0.09
33 1.3443 163067.17 -0.89 -35606.71 -0.16
34 1.3443 163063.26 -0.08 -35607.00 0.18
35 1.3443 163060.80 -0.18 -35607.55 -0.06
36 1.3443 163058.03 -0.56 -35607.56 0.25
37 1.3443 163055.75 -0.49 -35608.74 -0.62
38 1.3444 163054.31 0.43 -35608.37 0.07
39 1.3444 163051.58 0.05 -35608.60 0.15
40 1.3444 163049.34 0.18 -35608.87 0.20
41 1.3444 163043.86 -0.59 -35609.82 -0.11
42 1.3444 163042.59 0.49 -35610.01 0.02
43 1.3444 163038.88 -0.44 -35610.40 -0.00
44 1.3661 158674.07 0.64 -36153.65 -0.09
45 1.3663 158637.23 0.65 -36157.18 0.00
46 1.5164 137914.95 -0.39 -37055.91 -0.12
47 1.5190 137888.28 -0.41 -37049.27 -0.12
48 1.5269 137899.38 -0.15 -37029.49 -0.10
49 1.5271 137900.19 -0.14 -37028.75 -0.15
50 1.5300 137937.81 0.06 -37021.46 -0.17
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.
15RK277 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 27.038 27.044 27.032 ecceobj 0.805 0.805 0.805 incobj 9.542 9.542 9.542 qmin 5.151 -6.271 5.211 qmax 232.563 7924.950 70.094 amean 79.809 1975.492 28.007 amin 27.038 27.044 20.779 amax 118.965 3965.231 37.717 emean 0.924 0.980 0.801 emin 0.805 0.805 0.749 emax 0.955 1.007 0.858 imean 8.953 10.180 8.644 imin 8.514 8.622 7.206 imax 9.615 37.279 9.615 excite_mean 0.937 0.997 0.815 fracstop 0.004 0.032 0.001 cjmean 1.587 0.000 2.251 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 240.5 260.0 239.4 kozaiamp 16.3 62.8 30.8