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: 15KN175
# Created Wed Dec 25 02:10:20 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 34 observations of 34
# Arc: 7.16y
# First observation: 2015/02/25
# Last observation: 2022/04/26
# Chi-squared of fit: 12.09 DOF: 62 RMS: 0.11
# Min/Max residuals: -0.49 0.35
# Exact a, adot, b, bdot, g, gdot:
1.353951E-05 1.805984E-02 -2.255045E-06 -3.173723E-03 2.069281E-02 -1.831302E-03
# Covariance matrix:
1.5905E-13 -3.9831E-14 -8.3271E-15 4.0856E-15 8.2436E-14 -1.9286E-13
-3.9831E-14 1.0305E-13 7.1078E-15 -1.6682E-14 4.3102E-14 7.8862E-13
-8.3271E-15 7.1078E-15 6.4401E-14 -1.6370E-14 -3.4638E-15 5.9377E-14
4.0856E-15 -1.6682E-14 -1.6370E-14 1.3699E-14 -8.1846E-15 -1.4252E-13
8.2436E-14 4.3102E-14 -3.4638E-15 -8.1846E-15 1.1929E-13 3.8721E-13
-1.9286E-13 7.8862E-13 5.9377E-14 -1.4252E-13 3.8721E-13 6.7373E-12
# lat0 lon0 xBary yBary zBary JD0
8.222813 -124.799637 0.967900 0.027671 -0.190610 2457079.145188
# Heliocentric elements and errors
Epoch: 2457078.5000 = 2015/02/25
Mean Anomaly: 264.35508 +/- 0.033
Argument of Peri: 248.80018 +/- 0.025
Long of Asc Node: 93.41781 +/- 0.001
Inclination: 12.77976 +/- 0.000
Eccentricity: 0.11883988 +/- 0.0001
Semi-Major Axis: 47.32974456 +/- 0.0030
Time of Perihelion: 2488676.4622 +/- 13.8
Perihelion: 41.70508340 +/- 0.0069
Aphelion: 52.95440571 +/- 0.0072
Period (y) 325.6188 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -28.20372674 +/- 0.0005
Ecliptic Y -38.88063427 +/- 0.0006
Ecliptic Z 6.91163373 +/- 0.0001
Ecliptic XDOT 0.00206113 +/- 0.0000
Ecliptic YDOT -0.00122172 +/- 0.0000
Ecliptic ZDOT -0.00045016 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 48.52764422 +/- 0.0006
Geocenter to KBO 48.32604543 +/- 0.0008
# Hcoef: 6.79
The following table shows the complete astrometric record for 15KN175. 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 (15KN175) followed by the observatory code and reference code for the source of the astrometry.
2015 02 25.64441 15 39 26.745 -11 04 22.22 23.7r 15KN175 568 C~2nvh 2015 03 19.63677 15 39 05.104 -11 00 04.51 23.3r 15KN175 568 C~2nvh 2015 03 22.55638 15 38 59.416 -10 59 23.33 23.7r 15KN175 568 C~2nvh 2015 04 13.56832 15 37 58.662 -10 53 43.84 23.6r 15KN175 568 C~2nvh 2015 04 13.60943 15 37 58.521 -10 53 43.23 23.7r 15KN175 568 C~2nvh 2015 04 18.57835 15 37 41.140 -10 52 23.29 23.7r 15KN175 568 C~2nvh 2015 05 21.33898 15 35 28.957 -10 44 22.34 23.6r 15KN175 568 C~2nvh 2015 05 21.38005 15 35 28.784 -10 44 21.81 23.7r 15KN175 568 C~2nvh 2015 05 21.42139 15 35 28.606 -10 44 21.31 23.7r 15KN175 568 C~2nvh 2015 05 22.49770 15 35 24.072 -10 44 07.99 23.4r 15KN175 568 C~2nvh 2015 05 25.48844 15 35 11.553 -10 43 32.78 23.6r 15KN175 568 C~2nvh 2015 06 20.37754 15 33 31.405 -10 40 02.10 23.4r 15KN175 568 C~2nvh 2015 06 20.41847 15 33 31.262 -10 40 01.81 23.7r 15KN175 568 C~2nvh 2015 06 23.43876 15 33 21.163 -10 39 49.94 23.6r 15KN175 568 C~2nvh 2015 07 11.32142 15 32 31.514 -10 39 40.21 23.8r 15KN175 568 C~2nvh 2015 07 12.30139 15 32 29.351 -10 39 42.82 23.6r 15KN175 568 C~2nvh 2015 07 18.38184 15 32 17.429 -10 40 06.00 15KN175 568 C~2nvh 2016 02 11.65893 15 43 15.075 -11 30 54.78 23.8w 15KN175 568 C~2nvh 2016 02 12.59848 15 43 16.179 -11 30 50.32 23.9w 15KN175 568 C~2nvh 2016 03 15.59026 15 43 09.126 -11 25 56.82 23.8w 15KN175 568 C~2nvh 2016 04 03.53046 15 42 27.308 -11 21 29.04 23.9w 15KN175 568 C~2nvh 2016 04 08.58000 15 42 12.225 -11 20 11.69 23.7w 15KN175 568 C~2nvh 2016 04 29.45756 15 40 56.992 -11 14 48.01 23.2w 15KN175 568 C~2nvh 2016 05 04.39265 15 40 37.031 -11 13 34.65 23.8w 15KN175 568 C~2nvh 2016 05 30.47009 15 38 47.671 -11 08 05.47 23.8w 15KN175 568 C~2nvh 2016 07 05.37053 15 36 41.764 -11 05 02.36 23.9w 15KN175 568 C~2nvh 2017 03 28.59816 15 46 44.832 -11 48 10.30 24.0w 15KN175 568 C~2nvh 2017 06 26.28306 15 41 09.451 -11 30 41.17 23.9w 15KN175 568 C~2nvh 2017 07 28.28692 15 39 57.408 -11 31 55.96 15KN175 568 C~2nvh 2017 07 28.30120 15 39 57.384 -11 31 55.93 15KN175 568 C~2nvh 2017 08 25.26415 15 39 56.736 -11 37 23.87 23.8w 15KN175 568 C~2nvh 2022 04 26.357390 16 05 52.630 -13 45 57.35 23.9G 15KN175 G37 C~5ZbU 2022 04 26.406630 16 05 52.433 -13 45 57.02 15KN175 G37 C~5ZbU 2022 04 26.444660 16 05 52.319 -13 45 57.07 15KN175 G37 C~5ZbU
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 0.05 0.00 -0.05
2 0.0602 0.00 -0.07 0.00 -0.02
3 0.0682 0.00 -0.07 0.00 -0.03
4 0.1285 0.00 -0.03 0.00 -0.01
5 0.1286 0.00 -0.01 0.00 -0.06
6 0.1422 0.00 -0.07 0.00 0.08
7 0.2319 0.00 -0.01 0.00 -0.15
8 0.2320 0.00 0.03 0.00 -0.12
9 0.2321 0.00 0.02 0.00 -0.13
10 0.2351 0.00 -0.02 0.00 0.05
11 0.2432 0.00 0.04 0.00 0.04
12 0.3141 0.00 -0.04 0.00 -0.04
13 0.3142 0.00 -0.05 0.00 0.07
14 0.3225 0.00 -0.02 0.00 0.01
15 0.3715 0.00 0.05 0.00 0.06
16 0.3741 0.00 -0.05 0.00 0.01
17 0.3908 0.00 0.04 0.00 0.02
18 0.9610 0.00 -0.02 0.00 0.01
19 0.9636 0.00 0.05 0.00 0.02
20 1.0512 0.00 0.07 0.00 0.17
21 1.1030 0.00 0.03 0.00 0.01
22 1.1169 0.00 -0.03 0.00 -0.13
23 1.1740 0.00 -0.01 0.00 0.05
24 1.1875 0.00 0.08 0.00 0.01
25 1.2589 0.00 -0.04 0.00 0.00
26 1.3572 0.00 0.00 0.00 0.10
27 2.0861 0.00 -0.02 0.00 0.04
28 2.3317 0.00 -0.00 0.00 0.17
29 2.4193 0.00 0.08 0.00 -0.03
30 2.4193 0.00 -0.02 0.00 0.11
31 2.4959 0.00 -0.05 0.00 -0.10
32 7.1642 0.00 -0.08 0.00 0.35
33 7.1643 0.00 -0.21 0.00 0.05
34 7.1644 0.00 0.27 0.00 -0.49
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.
15KN175 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 47.001 47.001 47.001 ecceobj 0.125 0.125 0.125 incobj 12.781 12.781 12.781 qmin 40.846 40.834 40.822 qmax 54.184 54.177 54.229 amean 47.343 47.343 47.343 amin 46.937 46.938 46.944 amax 47.811 47.808 47.809 emean 0.121 0.121 0.121 emin 0.108 0.107 0.108 emax 0.135 0.134 0.135 imean 11.187 11.187 11.187 imin 10.839 10.838 10.841 imax 11.527 11.534 11.531 excite_mean 0.229 0.229 0.229 fracstop 1.000 1.000 1.000 cjmean 3.078 3.078 3.078 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 184.7 184.7 184.6 kozaiamp 180.0 180.0 180.0