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: 15KM199
# Created Sun Dec 22 02:10:26 2024
# Orbit generated from Bernstein formalism
# Fitting 27 observations of 27
# Arc: 2.00y
# First observation: 2014/05/29
# Last observation: 2016/05/30
Preliminary a, adot, b, bdot, g, gdot:
0.000176 0.027727 -0.000013 -0.002004 0.026483 0.000000
# Chi-squared of fit: 19.16 DOF: 48 RMS: 0.15
# Min/Max residuals: -0.62 0.26
# Exact a, adot, b, bdot, g, gdot:
1.649394E-05 2.817940E-02 -2.716259E-07 -2.042034E-03 2.731768E-02 4.933195E-03
# Covariance matrix:
3.6112E-13 -4.9713E-13 -8.0729E-15 2.2269E-14 -1.7722E-13 -5.1983E-12
-4.9713E-13 1.0152E-12 2.0364E-14 -5.7662E-14 3.9074E-13 1.3256E-11
-8.0729E-15 2.0364E-14 2.3353E-13 -1.7198E-13 1.1869E-14 3.2755E-13
2.2269E-14 -5.7662E-14 -1.7198E-13 1.6789E-13 -2.7901E-14 -9.0392E-13
-1.7722E-13 3.9074E-13 1.1869E-14 -2.7901E-14 4.4349E-13 7.1759E-12
-5.1983E-12 1.3256E-11 3.2755E-13 -9.0392E-13 7.1759E-12 2.1095E-10
# lat0 lon0 xBary yBary zBary JD0
5.230384 -127.228923 -0.263729 0.089366 -0.975616 2456806.847808
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 64.52831 +/- 0.037
Argument of Peri: 43.60977 +/- 0.023
Long of Asc Node: 103.76146 +/- 0.005
Inclination: 6.58176 +/- 0.001
Eccentricity: 0.18740820 +/- 0.0005
Semi-Major Axis: 39.50878389 +/- 0.0081
Time of Perihelion: 2440541.7656 +/- 7.8
Perihelion: 32.10451366 +/- 0.0215
Aphelion: 46.91305412 +/- 0.0226
Period (y) 248.3412 +/- 0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -22.43873128 +/- 0.0005
Ecliptic Y -29.96365403 +/- 0.0007
Ecliptic Z 3.33710413 +/- 0.0001
Ecliptic XDOT 0.00193429 +/- 0.0000
Ecliptic YDOT -0.00211917 +/- 0.0000
Ecliptic ZDOT -0.00015861 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.58262216 +/- 0.0007
Geocenter to KBO 36.60632505 +/- 0.0009
# Hcoef: 9.18
The following table shows the complete astrometric record for 15KM199. 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 (15KM199) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.34703 15 26 55.597 -13 24 03.18 25.1r 15KM199 568 C~4n9s 2014 05 29.38590 15 26 55.396 -13 24 02.16 23.6r 15KM199 568 C~4n9s 2014 05 29.42474 15 26 55.190 -13 24 01.70 25.4r 15KM199 568 C~4n9s 2014 05 31.37090 15 26 45.236 -13 23 31.72 15KM199 568 C~4n9s 2015 02 20.65666 15 38 52.447 -14 19 36.98 26.2r 15KM199 568 C~4n9s 2015 03 19.57074 15 38 29.367 -14 15 11.79 25.2r 15KM199 568 C~4n9s 2015 03 21.62951 15 38 24.525 -14 14 42.47 24.5r 15KM199 568 C~4n9s 2015 04 12.52910 15 37 10.654 -14 08 37.82 24.9r 15KM199 568 C~4n9s 2015 04 18.51079 15 36 44.474 -14 06 46.64 24.9r 15KM199 568 C~4n9t 2015 05 17.38343 15 34 17.868 -13 57 45.92 24.8r 15KM199 568 C~4n9t 2015 05 17.42514 15 34 17.641 -13 57 45.14 25.6r 15KM199 568 C~4n9t 2015 05 24.36910 15 33 40.695 -13 55 46.29 24.7r 15KM199 568 C~4n9t 2015 05 24.41533 15 33 40.444 -13 55 45.51 25.0r 15KM199 568 C~4n9t 2015 05 24.45620 15 33 40.212 -13 55 45.06 24.6r 15KM199 568 C~4n9t 2015 05 26.44379 15 33 29.740 -13 55 12.48 25.1r 15KM199 568 C~4n9t 2015 06 18.34328 15 31 37.778 -13 50 08.72 24.3r 15KM199 568 C~4n9t 2015 06 18.38434 15 31 37.602 -13 50 08.37 23.5r 15KM199 568 C~4n9t 2015 06 21.35896 15 31 24.871 -13 49 40.09 25.2r 15KM199 568 C~4n9t 2015 07 10.39102 15 30 18.031 -13 47 54.06 25.1r 15KM199 568 C~4n9t 2015 07 18.31678 15 29 58.931 -13 47 50.82 25.1r 15KM199 568 C~4n9t 2016 02 06.62508 15 44 37.635 -14 48 12.01 24.8w 15KM199 568 C~4n9t 2016 02 12.61062 15 44 49.490 -14 48 09.70 25.5w 15KM199 568 C~4n9t 2016 03 15.61859 15 44 46.745 -14 44 21.83 25.2w 15KM199 568 C~4n9t 2016 04 03.55474 15 43 56.142 -14 39 49.58 25.5w 15KM199 568 C~4n9t 2016 04 08.60428 15 43 37.496 -14 38 25.58 25.1w 15KM199 568 C~4n9t 2016 05 04.41287 15 41 38.402 -14 30 42.48 25.2w 15KM199 568 C~4n9t 2016 05 30.47415 15 39 20.756 -14 23 25.58 15KM199 568 C~4n9t
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 -0.04 0.00 -0.19
2 0.0001 -3.09 -0.10 0.26 0.22
3 0.0002 -6.12 -0.09 -0.04 0.06
4 0.0055 -154.27 0.16 -6.93 -0.09
5 0.7319 10945.64 -0.62 -715.77 0.22
6 0.8055 10556.07 0.26 -536.76 -0.05
7 0.8112 10480.55 0.11 -524.84 0.02
8 0.8711 9347.94 -0.06 -424.31 0.20
9 0.8875 8950.83 0.20 -406.64 0.16
10 0.9666 6746.80 0.02 -390.85 -0.21
11 0.9667 6743.40 0.00 -390.88 -0.17
12 0.9857 6192.21 0.17 -404.77 -0.01
13 0.9858 6188.47 0.13 -404.89 0.00
14 0.9859 6185.08 0.02 -405.27 -0.26
15 0.9914 6029.12 0.02 -410.35 -0.03
16 1.0541 4372.58 -0.16 -509.76 -0.04
17 1.0542 4370.01 -0.04 -510.05 -0.07
18 1.0623 4183.18 -0.04 -527.64 0.03
19 1.1144 3212.75 0.03 -661.85 0.11
20 1.1361 2942.09 0.09 -726.65 -0.04
21 1.6928 16241.62 0.24 -1222.20 0.08
22 1.7091 16409.48 -0.05 -1180.49 0.03
23 1.7968 16317.94 0.01 -967.09 -0.08
24 1.8486 15536.21 0.04 -870.14 0.10
25 1.8624 15251.97 -0.01 -850.55 0.01
26 1.9331 13454.13 -0.04 -799.54 0.09
27 2.0045 11400.56 -0.27 -841.52 -0.11
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.
15KM199 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.245 39.268 39.221 ecceobj 0.183 0.184 0.182 incobj 6.577 6.577 6.577 qmin 31.504 31.479 31.529 qmax 47.888 47.942 47.734 amean 39.457 39.456 39.456 amin 39.081 39.062 39.095 amax 39.908 39.925 39.877 emean 0.184 0.185 0.183 emin 0.167 0.169 0.165 emax 0.201 0.202 0.199 imean 4.844 4.846 4.846 imin 4.358 4.364 4.353 imax 5.528 5.499 5.547 excite_mean 0.203 0.203 0.202 fracstop 1.000 1.000 1.000 cjmean 3.005 3.005 3.006 libcent 0 180.3 179.4 179.3 libamp 0 51.8 64.4 39.8 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 180.7 177.7 181.0 kozaiamp 180.0 180.0 180.0