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: 15KQ174
# Created Sun Dec 22 02:10:24 2024
# Orbit generated from Bernstein formalism
# Fitting 33 observations of 33
# Arc: 3.24y
# First observation: 2014/05/29
# Last observation: 2017/08/24
Preliminary a, adot, b, bdot, g, gdot:
0.000129 0.014530 0.000065 0.006239 0.018806 0.000000
# Chi-squared of fit: 13.32 DOF: 60 RMS: 0.11
# Min/Max residuals: -0.26 0.27
# Exact a, adot, b, bdot, g, gdot:
1.239375E-05 1.477190E-02 6.562908E-06 6.344125E-03 1.878976E-02 1.715815E-03
# Covariance matrix:
1.7043E-13 -1.8330E-13 2.1128E-14 -5.0976E-14 -6.7101E-14 -2.8746E-12
-1.8330E-13 3.8023E-13 -5.8429E-14 1.4055E-13 1.5729E-13 7.9796E-12
2.1128E-14 -5.8429E-14 1.3769E-13 -9.0463E-14 -2.9806E-14 -1.4217E-12
-5.0976E-14 1.4055E-13 -9.0463E-14 1.1245E-13 7.3717E-14 3.4215E-12
-6.7101E-14 1.5729E-13 -2.9806E-14 7.3717E-14 2.1647E-13 3.9264E-12
-2.8746E-12 7.9796E-12 -1.4217E-12 3.4215E-12 3.9264E-12 1.9406E-10
# lat0 lon0 xBary yBary zBary JD0
7.824062 -129.039173 -0.294867 0.132209 -0.961744 2456806.867238
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 75.88602 +/- 0.086
Argument of Peri: 290.00237 +/- 0.034
Long of Asc Node: 213.96874 +/- 0.001
Inclination: 24.40035 +/- 0.001
Eccentricity: 0.11375048 +/- 0.0009
Semi-Major Axis: 55.01480913 +/- 0.0126
Time of Perihelion: 2425382.6039 +/- 34.1
Perihelion: 48.75684832 +/- 0.0491
Aphelion: 61.27276993 +/- 0.0498
Period (y) 408.0634 +/- 0.14
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -33.59265892 +/- 0.0008
Ecliptic Y -41.89065942 +/- 0.0010
Ecliptic Z 7.24539532 +/- 0.0002
Ecliptic XDOT 0.00158981 +/- 0.0000
Ecliptic YDOT -0.00145397 +/- 0.0000
Ecliptic ZDOT 0.00094996 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 54.18292935 +/- 0.0009
Geocenter to KBO 53.22048236 +/- 0.0013
# Hcoef: 7.30
The following table shows the complete astrometric record for 15KQ174. 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 (15KQ174) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.36646 15 22 28.287 -10 26 19.68 24.4r 15KQ174 568 C~2lVK 2014 05 29.40531 15 22 28.161 -10 26 18.76 24.0r 15KQ174 568 C~2lVK 2014 05 29.44414 15 22 28.001 -10 26 18.22 24.4r 15KQ174 568 C~2lVK 2014 05 30.47406 15 22 24.343 -10 26 02.99 24.6r 15KQ174 568 C~2lVK 2014 06 21.36960 15 21 13.558 -10 21 40.30 24.9r 15KQ174 568 C~2lVK 2014 06 21.40848 15 21 13.432 -10 21 39.88 24.8r 15KQ174 568 C~2lVK 2014 07 19.28605 15 20 15.258 -10 19 29.17 25.1r 15KQ174 568 C~2lVK 2015 03 19.60818 15 29 55.493 -10 40 13.69 23.5r 15KQ174 568 C~2lVK 2015 04 13.53954 15 28 54.027 -10 32 11.89 24.7r 15KQ174 568 C~2lVK 2015 04 13.58065 15 28 53.910 -10 32 10.80 24.7r 15KQ174 568 C~2lVK 2015 05 22.46905 15 26 36.158 -10 19 58.58 25.0r 15KQ174 568 C~2lVK 2015 05 24.38151 15 26 29.127 -10 19 27.80 25.0r 15KQ174 568 C~2lVK 2015 05 24.42760 15 26 28.948 -10 19 26.90 24.6r 15KQ174 568 C~2lVK 2015 05 24.46857 15 26 28.803 -10 19 26.30 24.7r 15KQ174 568 C~2lVK 2015 05 25.45951 15 26 25.165 -10 19 10.80 24.5r 15KQ174 568 C~2lVK 2015 05 26.45643 15 26 21.545 -10 18 55.25 24.6r 15KQ174 568 C~2lVK 2015 06 20.34904 15 24 58.428 -10 13 44.96 24.6r 15KQ174 568 C~2lVK 2015 06 20.38989 15 24 58.297 -10 13 44.59 24.8r 15KQ174 568 C~2lVK 2015 06 23.40938 15 24 49.683 -10 13 18.48 24.6r 15KQ174 568 C~2lVK 2015 07 11.28306 15 24 08.065 -10 11 40.32 24.4r 15KQ174 568 C~2lVK 2015 07 18.35221 15 23 56.613 -10 11 29.00 24.5r 15KQ174 568 C~2lVK 2016 03 13.63308 15 33 42.770 -10 33 18.29 25.0w 15KQ174 568 C~2lVK 2016 03 17.57650 15 33 36.894 -10 32 09.11 25.0w 15KQ174 568 C~2lVK 2016 04 03.51819 15 33 00.779 -10 26 49.00 24.1w 15KQ174 568 C~2lVK 2016 04 08.56382 15 32 46.972 -10 25 09.12 24.9w 15KQ174 568 C~2lVK 2016 04 08.56786 15 32 46.975 -10 25 09.29 24.9w 15KQ174 568 C~2lVK 2016 05 04.38456 15 31 21.497 -10 16 42.36 24.1w 15KQ174 568 C~2lVK 2016 05 30.49842 15 29 45.432 -10 09 25.22 24.8w 15KQ174 568 C~2lVK 2016 05 30.50246 15 29 45.420 -10 09 25.40 25.2w 15KQ174 568 C~2lVK 2017 03 30.56791 15 36 50.417 -10 19 36.97 15KQ174 568 C~2lVK 2017 08 20.27585 15 31 01.761 -09 57 50.65 24.4w 15KQ174 568 C~2lVK 2017 08 23.26141 15 31 04.455 -09 58 20.15 25.8w 15KQ174 568 C~2lVK 2017 08 24.24592 15 31 05.463 -09 58 30.30 25.1w 15KQ174 568 C~2lVK
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 0.01 0.00 -0.25
2 0.0001 -2.03 0.14 0.42 0.13
3 0.0002 -4.45 -0.11 0.34 0.02
4 0.0030 -60.51 0.14 1.32 -0.02
5 0.0630 -1137.32 0.09 -11.27 0.06
6 0.0631 -1139.23 -0.12 -11.34 0.07
7 0.1394 -2002.56 -0.09 -104.82 0.27
8 0.8056 6594.31 -0.07 854.26 -0.18
9 0.8738 5595.67 0.09 1094.86 -0.24
10 0.8740 5593.72 0.19 1095.48 0.06
11 0.9804 3441.87 0.00 1294.75 -0.05
12 0.9857 3333.67 -0.01 1298.42 -0.05
13 0.9858 3330.89 -0.15 1298.63 0.08
14 0.9859 3328.67 -0.02 1298.67 0.06
15 0.9886 3272.79 -0.14 1300.15 -0.11
16 0.9913 3217.16 0.08 1301.75 -0.03
17 1.0595 1951.56 0.12 1292.39 0.04
18 1.0596 1949.60 -0.01 1292.26 -0.00
19 1.0679 1819.96 -0.03 1285.36 -0.06
20 1.1168 1200.69 0.11 1224.71 0.05
21 1.1362 1034.27 -0.26 1192.79 0.08
22 1.7913 9743.28 -0.00 2087.72 0.04
23 1.8021 9642.05 -0.04 2133.47 -0.09
24 1.8485 9045.71 0.09 2312.50 0.08
25 1.8623 8823.26 -0.17 2359.02 0.13
26 1.8623 8823.34 0.10 2358.87 -0.06
27 1.9330 7473.66 -0.01 2537.78 0.08
28 2.0045 5989.70 -0.02 2608.35 0.00
29 2.0045 5989.57 0.07 2608.13 -0.22
30 2.8370 12233.72 -0.11 3565.37 0.15
31 3.2277 6909.99 0.15 3562.46 0.00
32 3.2359 6955.92 0.14 3543.76 0.00
33 3.2385 6972.89 -0.16 3537.63 -0.02
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.
15KQ174 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 54.660 54.696 54.625 ecceobj 0.109 0.112 0.107 incobj 24.490 24.490 24.489 qmin 48.267 48.107 48.333 qmax 62.321 62.540 62.112 amean 55.078 55.114 55.042 amin 54.593 54.630 54.554 amax 55.609 55.647 55.551 emean 0.109 0.111 0.107 emin 0.099 0.101 0.097 emax 0.121 0.124 0.118 imean 24.964 24.966 24.961 imin 24.811 24.803 24.797 imax 25.143 25.154 25.139 excite_mean 0.436 0.437 0.435 fracstop 1.000 1.000 1.000 cjmean 2.984 2.984 2.984 libcent 0 -180.0 -180.0 60.3 libamp 0 -180.0 -180.0 44.3 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 191.1 191.0 191.2 kozaiamp 180.0 180.0 180.0