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: 15KC176
# Created Sun Nov 24 02:10:21 2024
# Orbit generated from Bernstein formalism
# Fitting 28 observations of 28
# Arc: 2.98y
# First observation: 2014/05/30
# Last observation: 2017/05/21
Preliminary a, adot, b, bdot, g, gdot:
-0.000129 0.026807 -0.000018 0.004516 0.025675 0.000000
# Chi-squared of fit: 11.40 DOF: 50 RMS: 0.11
# Min/Max residuals: -0.25 0.32
# Exact a, adot, b, bdot, g, gdot:
1.532229E-05 2.670582E-02 3.221923E-06 4.514775E-03 2.619463E-02 -2.357114E-03
# Covariance matrix:
2.6071E-13 -2.9827E-13 1.2074E-14 -2.9439E-14 -7.8509E-14 -2.5297E-12
-2.9827E-13 5.4083E-13 -2.7972E-14 6.6754E-14 1.4331E-13 5.7663E-12
1.2074E-14 -2.7972E-14 1.7632E-13 -1.0592E-13 -8.9814E-15 -3.5440E-13
-2.9439E-14 6.6754E-14 -1.0592E-13 9.5157E-14 2.8815E-14 8.6521E-13
-7.8509E-14 1.4331E-13 -8.9814E-15 2.8815E-14 2.4227E-13 2.3330E-12
-2.5297E-12 5.7663E-12 -3.5440E-13 8.6521E-13 2.3330E-12 7.4325E-11
# lat0 lon0 xBary yBary zBary JD0
5.710663 -125.496923 -0.251241 0.097885 -0.978307 2456807.890148
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 314.64130 +/- 0.086
Argument of Peri: 84.97082 +/- 0.120
Long of Asc Node: 204.87351 +/- 0.002
Inclination: 11.03350 +/- 0.001
Eccentricity: 0.10291775 +/- 0.0003
Semi-Major Axis: 41.93830012 +/- 0.0040
Time of Perihelion: 2469299.4266 +/- 23.6
Perihelion: 37.62210476 +/- 0.0118
Aphelion: 46.25449548 +/- 0.0121
Period (y) 271.5967 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -22.42479948 +/- 0.0004
Ecliptic Y -31.87128139 +/- 0.0006
Ecliptic Z 3.79885940 +/- 0.0001
Ecliptic XDOT 0.00243687 +/- 0.0000
Ecliptic YDOT -0.00138662 +/- 0.0000
Ecliptic ZDOT 0.00044515 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.15458520 +/- 0.0005
Geocenter to KBO 38.17576808 +/- 0.0007
# Hcoef: 8.75
The following table shows the complete astrometric record for 15KC176. 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 (15KC176) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.38937 15 34 16.958 -13 21 10.35 24.7r 15KC176 568 C~2nvj 2014 06 01.31617 15 34 07.516 -13 20 36.06 24.3r 15KC176 568 C~2nvj 2014 06 01.35941 15 34 07.311 -13 20 35.31 24.3r 15KC176 568 C~2nvj 2014 06 01.40234 15 34 07.071 -13 20 34.65 25.1r 15KC176 568 C~2nvj 2014 07 19.32970 15 31 14.258 -13 12 40.26 24.5r 15KC176 568 C~2nvj 2015 02 23.64017 15 45 58.758 -13 57 33.69 24.5r 15KC176 568 C~2nvj 2015 03 22.52231 15 45 34.668 -13 51 06.89 24.9r 15KC176 568 C~2nvj 2015 04 12.51679 15 44 29.663 -13 44 11.00 24.4r 15KC176 568 C~2nvj 2015 05 17.41261 15 41 46.697 -13 31 46.94 25.2r 15KC176 568 C~2nvj 2015 05 17.45472 15 41 46.483 -13 31 45.94 24.1r 15KC176 568 C~2nvj 2015 05 24.39782 15 41 11.108 -13 29 30.62 24.7r 15KC176 568 C~2nvj 2015 05 24.44391 15 41 10.873 -13 29 29.51 24.8r 15KC176 568 C~2nvj 2015 05 24.48500 15 41 10.660 -13 29 28.92 24.5r 15KC176 568 C~2nvj 2015 05 26.47305 15 41 00.602 -13 28 51.96 24.6r 15KC176 568 C~2nvj 2015 06 18.37201 15 39 12.175 -13 22 53.69 24.5r 15KC176 568 C~2nvj 2015 06 18.41299 15 39 11.993 -13 22 53.11 24.5r 15KC176 568 C~2nvj 2015 06 21.38764 15 38 59.519 -13 22 17.86 24.8r 15KC176 568 C~2nvj 2015 07 18.34401 15 37 34.018 -13 19 19.50 24.7r 15KC176 568 C~2nvj 2016 02 06.65340 15 51 49.355 -14 04 55.87 24.9w 15KC176 568 C~2nvj 2016 02 12.63895 15 52 02.341 -14 04 24.61 24.8w 15KC176 568 C~2nvj 2016 03 17.62205 15 52 04.395 -13 57 40.85 25.3w 15KC176 568 C~2nvj 2016 04 03.56283 15 51 22.636 -13 52 29.22 24.7w 15KC176 568 C~2nvj 2016 04 08.61238 15 51 05.540 -13 50 47.10 24.7w 15KC176 568 C~2nvj 2016 04 09.55630 15 51 02.132 -13 50 27.76 25.3w 15KC176 568 C~2nvj 2016 07 04.33057 15 44 31.161 -13 26 17.70 25.0w 15KC176 568 C~2nvj 2016 07 05.40293 15 44 27.629 -13 26 11.21 25.0w 15KC176 568 C~2nvj 2017 03 28.60754 15 58 05.681 -13 59 19.83 24.8w 15KC176 568 C~2nvj 2017 05 21.54276 15 54 16.535 -13 41 19.03 24.3w 15KC176 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 -0.10
2 0.0053 -142.00 -0.02 0.59 -0.01
3 0.0054 -145.09 0.11 0.60 0.02
4 0.0055 -148.65 -0.25 0.41 -0.16
5 0.1367 -2711.98 -0.04 -141.81 -0.05
6 0.7372 10465.80 0.05 245.11 -0.05
7 0.8108 10035.69 0.05 543.03 -0.09
8 0.8682 9016.95 -0.03 733.57 0.14
9 0.9638 6530.58 -0.11 914.75 -0.07
10 0.9639 6527.31 -0.08 915.01 0.10
11 0.9829 5993.58 -0.05 927.84 0.02
12 0.9830 5989.98 -0.06 928.13 0.27
13 0.9832 5986.82 -0.03 927.99 0.08
14 0.9886 5835.42 0.07 930.10 -0.05
15 1.0513 4212.55 0.15 912.05 0.08
16 1.0514 4209.83 0.09 911.99 0.13
17 1.0595 4024.51 -0.04 903.91 -0.02
18 1.1333 2769.12 0.13 785.93 0.08
19 1.6900 15558.95 -0.07 952.20 -0.15
20 1.7064 15737.45 0.01 1024.43 -0.10
21 1.7994 15677.72 0.23 1426.06 0.32
22 1.8458 15012.45 -0.04 1596.65 -0.18
23 1.8596 14745.71 -0.08 1641.42 0.03
24 1.8622 14692.76 -0.18 1649.34 -0.02
25 2.0970 8794.00 -0.01 1784.74 0.03
26 2.1000 8742.25 -0.01 1779.33 -0.18
27 2.8288 20874.72 0.14 2474.34 -0.07
28 2.9765 17352.67 -0.08 2809.99 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.
15KC176 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 41.722 41.733 41.712 ecceobj 0.103 0.104 0.103 incobj 11.072 11.072 11.072 qmin 36.858 36.786 36.800 qmax 47.442 47.511 47.344 amean 41.997 42.009 41.978 amin 41.657 41.663 41.623 amax 42.364 42.369 42.347 emean 0.099 0.100 0.099 emin 0.080 0.079 0.079 emax 0.121 0.122 0.119 imean 12.572 12.592 12.573 imin 11.301 11.302 11.297 imax 13.536 13.604 13.537 excite_mean 0.240 0.240 0.239 fracstop 1.000 1.000 1.000 cjmean 3.010 3.010 3.010 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 181.0 180.2 181.0 kozaiamp 180.0 180.0 179.9