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: 15KW175
# Created Sun Nov 24 02:10:21 2024
# Orbit generated from Bernstein formalism
# Fitting 33 observations of 35
# Arc: 3.24y
# First observation: 2014/05/29
# Last observation: 2017/08/26
Preliminary a, adot, b, bdot, g, gdot:
0.000249 0.027415 -0.000021 -0.001297 0.025781 0.000000
# Chi-squared of fit: 11.32 DOF: 60 RMS: 0.10
# Min/Max residuals: -0.25 0.28
# Exact a, adot, b, bdot, g, gdot:
1.618915E-05 2.787252E-02 -2.427514E-07 -1.332697E-03 2.600865E-02 -1.707297E-04
# Covariance matrix:
2.6357E-13 -3.2924E-13 -1.1561E-14 1.8378E-14 -9.1690E-14 -3.1518E-12
-3.2924E-13 6.3173E-13 2.6255E-14 -4.2730E-14 1.6393E-13 7.1692E-12
-1.1561E-14 2.6255E-14 1.4731E-13 -7.3401E-14 6.8852E-15 3.2465E-13
1.8378E-14 -4.2730E-14 -7.3401E-14 5.3809E-14 -8.5295E-15 -5.3236E-13
-9.1690E-14 1.6393E-13 6.8852E-15 -8.5295E-15 1.6232E-13 1.8496E-12
-3.1518E-12 7.1692E-12 3.2465E-13 -5.3236E-13 1.8496E-12 8.8695E-11
# lat0 lon0 xBary yBary zBary JD0
5.860882 -127.053544 -0.261313 0.100161 -0.975228 2456806.882768
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 0.83835 +/- 0.110
Argument of Peri: 114.74416 +/- 0.150
Long of Asc Node: 117.27244 +/- 0.004
Inclination: 6.35679 +/- 0.000
Eccentricity: 0.14805583 +/- 0.0001
Semi-Major Axis: 46.27481266 +/- 0.0034
Time of Perihelion: 2456532.7453 +/- 35.1
Perihelion: 39.42355690 +/- 0.0041
Aphelion: 53.12606841 +/- 0.0049
Period (y) 314.7931 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -23.43012761 +/- 0.0004
Ecliptic Y -31.46290787 +/- 0.0005
Ecliptic Z 3.92618142 +/- 0.0001
Ecliptic XDOT 0.00233847 +/- 0.0000
Ecliptic YDOT -0.00176875 +/- 0.0000
Ecliptic ZDOT -0.00014127 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.42461607 +/- 0.0004
Geocenter to KBO 38.44875019 +/- 0.0006
# Hcoef: 8.58
The following table shows the complete astrometric record for 15KW175. 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 (15KW175) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.38199 15 28 15.601 -12 49 58.46 24.0r 15KW175 568 C~2nvi 2014 05 29.42085 15 28 15.388 -12 49 57.44 25.2r 15KW175 568 C~2nvi 2014 05 31.40597 15 28 05.808 -12 49 28.75 24.4r 15KW175 568 C~2nvi 2014 06 22.30598 15 26 30.347 -12 45 23.70 24.7r 15KW175 568 C~2nvi 2014 06 22.34880 15 26 30.155 -12 45 23.36 24.6r 15KW175 568 C~2nvi 2014 07 19.32186 15 25 14.577 -12 44 14.89 24.5r 15KW175 568 C~2nvi 2015 02 20.65667 15 39 50.061 -13 42 51.02 25.3r 15KW175 568 C~2nvi 2015 03 19.57074 15 39 30.100 -13 38 08.55 23.9r 15KW175 568 C~2nvi 2015 04 12.52910 15 38 16.728 -13 31 32.66 24.4r 15KW175 568 C~2nvi 2015 05 17.38343 15 35 33.940 -13 20 56.21 24.0r 15KW175 568 C~2nvi 2015 05 17.42514 15 35 33.712 -13 20 55.41 24.3r 15KW175 568 C~2nvi 2015 05 17.46733 15 35 33.522 -13 20 54.79 24.6r 15KW175 568 C~2nvi 2015 05 24.36911 15 34 58.792 -13 19 01.87 24.1r 15KW175 568 C~2nvi 2015 05 24.41533 15 34 58.551 -13 19 01.02 24.5r 15KW175 568 C~2nvi 2015 05 24.45620 15 34 58.344 -13 19 00.27 24.4r 15KW175 568 C~2nvi 2015 05 26.44379 15 34 48.426 -13 18 29.69 24.2r 15KW175 568 C~2nvi 2015 06 18.34328 15 33 02.382 -13 13 44.76 24.5r 15KW175 568 C~2nvi 2015 06 18.38434 15 33 02.186 -13 13 44.61 24.7r 15KW175 568 C~2nvi 2015 06 21.35896 15 32 50.116 -13 13 19.03 24.8r 15KW175 568 C~2nvi 2015 07 17.34619 15 31 30.435 -13 11 48.62 24.1r 15KW175 568 C~2nvi 2015 07 18.31678 15 31 28.507 -13 11 50.28 24.7r 15KW175 568 C~2nvi 2016 02 06.62508 15 45 39.150 -14 09 37.03 25.1w 15KW175 568 C~2nvi 2016 02 12.61062 15 45 51.047 -14 09 27.86 25.0w 15KW175 568 C~2nvi 2016 03 15.61859 15 45 51.095 -14 05 12.69 24.6w 15KW175 568 C~2nvi 2016 04 03.55474 15 45 04.108 -14 00 33.68 24.6w 15KW175 568 C~2nvi 2016 04 08.60428 15 44 46.637 -13 59 09.00 24.6w 15KW175 568 C~2nvi 2016 04 29.47374 15 43 18.043 -13 52 58.91 23.9w 15KW175 568 C~2nvj 2016 05 04.40882 15 42 54.301 -13 51 30.84 24.7w 15KW175 568 C~2nvj 2016 07 04.29413 15 38 17.376 -13 39 11.81 25.0w 15KW175 568 C~2nvj 2016 07 05.36242 15 38 14.033 -13 39 08.22 25.1w 15KW175 568 C~2nvj 2017 05 21.53337 15 47 50.590 -14 13 16.82 24.4w 15KW175 568 C~2nvj 2017 07 28.31194 15 43 39.346 -14 06 00.77 15KW175 568 C~2nvj 2017 08 19.27024 15 43 34.815 -14 09 11.89 24.9w 15KW175 568 C~2nvj 2017 08 25.27821 15 43 41.945 -14 10 32.88 25.1w 15KW175 568 C~2nvj 2017 08 26.25868 15 43 43.471 -14 10 47.19 25.2w 15KW175 568 C~2nvj
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 0.16 0.00 -0.12
2 0.0001 -3.27 -0.24 0.22 0.24
3 0.0055 -146.14 0.03 -6.42 -0.06
4 0.0655 -1559.84 ( 0.55) -113.47 ( 0.11)
5 0.0656 -1562.65 0.19 -113.84 0.03
6 0.1395 -2650.92 -0.03 -321.81 0.03
7 0.7318 10613.10 -0.02 -644.27 0.00
8 0.8054 10263.08 ( 0.49) -437.70 ( 0.05)
9 0.8710 9127.61 0.07 -304.73 -0.06
10 0.9665 6665.80 -0.03 -250.41 -0.09
11 0.9666 6662.38 -0.25 -250.43 -0.05
12 0.9667 6659.53 0.16 -250.49 -0.05
13 0.9856 6139.83 0.14 -262.05 -0.03
14 0.9857 6136.21 0.03 -262.07 0.07
15 0.9858 6133.09 0.02 -262.06 0.18
16 0.9913 5985.08 -0.02 -267.04 -0.07
17 1.0540 4412.78 0.13 -362.67 0.28
18 1.0541 4409.97 -0.13 -363.22 -0.01
19 1.0622 4232.68 0.01 -380.93 -0.06
20 1.1334 3081.45 -0.16 -574.92 -0.00
21 1.1360 3054.53 -0.15 -583.37 -0.10
22 1.6927 15951.46 -0.13 -1031.07 -0.15
23 1.7090 16118.82 0.05 -982.49 -0.10
24 1.7967 16060.82 0.00 -733.14 -0.05
25 1.8485 15327.14 -0.06 -617.59 0.01
26 1.8623 15058.76 0.06 -593.42 0.05
27 1.9195 13711.86 0.06 -530.09 -0.02
28 1.9330 13353.58 0.03 -524.34 0.06
29 2.0997 9245.47 -0.01 -749.12 -0.09
30 2.1026 9197.18 0.16 -757.14 -0.02
31 2.9792 17875.62 -0.11 -809.85 0.05
32 3.1648 14196.36 0.08 -1220.91 -0.01
33 3.2249 14176.26 0.04 -1422.56 0.11
34 3.2413 14296.42 -0.13 -1477.61 -0.01
35 3.2440 14321.44 0.07 -1486.45 0.03
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.
15KW175 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.960 45.971 45.948 ecceobj 0.143 0.143 0.142 incobj 6.353 6.353 6.353 qmin 39.002 38.972 38.976 qmax 54.020 54.063 54.036 amean 46.350 46.362 46.336 amin 45.949 45.970 45.931 amax 46.795 46.805 46.776 emean 0.142 0.142 0.142 emin 0.130 0.129 0.128 emax 0.156 0.156 0.156 imean 4.765 4.765 4.766 imin 4.235 4.235 4.234 imax 5.309 5.310 5.312 excite_mean 0.165 0.165 0.164 fracstop 1.000 1.000 1.000 cjmean 3.097 3.097 3.097 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 182.1 182.1 181.9 kozaiamp 180.0 179.9 180.0