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: 19GJ185
# Created Sun Dec 22 02:11:06 2024
# Orbit generated from Bernstein formalism
# Fitting 14 observations of 14
# Arc: 2.15y
# First observation: 2017/04/01
# Last observation: 2019/05/28
Preliminary a, adot, b, bdot, g, gdot:
0.000004 0.025797 -0.000010 -0.009772 0.026102 0.000000
# Chi-squared of fit: 3.73 DOF: 22 RMS: 0.09
# Min/Max residuals: -0.17 0.21
# Exact a, adot, b, bdot, g, gdot:
1.603133E-05 2.569161E-02 -5.579503E-06 -9.761206E-03 2.586455E-02 -2.495489E-03
# Covariance matrix:
7.3839E-13 2.7430E-13 5.4601E-15 -2.5950E-13 5.0991E-13 1.2483E-11
2.7430E-13 9.2739E-11 7.6227E-13 -3.7381E-11 8.2227E-11 1.8032E-09
5.4601E-15 7.6227E-13 7.3464E-13 -6.5910E-13 6.7488E-13 1.4869E-11
-2.5950E-13 -3.7381E-11 -6.5910E-13 1.5305E-11 -3.3160E-11 -7.2875E-10
5.0991E-13 8.2227E-11 6.7488E-13 -3.3160E-11 7.3419E-11 1.5999E-09
1.2483E-11 1.8032E-09 1.4869E-11 -7.2875E-10 1.5999E-09 3.5152E-08
# lat0 lon0 xBary yBary zBary JD0
9.736445 -159.662177 0.153442 0.166449 -0.969377 2457844.975468
# Heliocentric elements and errors
Epoch: 2457840.5000 = 2017/03/28
Mean Anomaly: 333.56704 +/- 1.284
Argument of Peri: 192.09762 +/- 1.995
Long of Asc Node: 43.65574 +/- 0.002
Inclination: 22.72389 +/- 0.002
Eccentricity: 0.17444198 +/- 0.0049
Semi-Major Axis: 46.54855060 +/- 0.1069
Time of Perihelion: 2466357.7805 +/- 412.7
Perihelion: 38.42852941 +/- 0.2456
Aphelion: 54.66857178 +/- 0.2613
Period (y) 317.5905 +/- 1.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -36.70901471 +/- 0.0118
Ecliptic Y -13.44703700 +/- 0.0044
Ecliptic Z 6.53836018 +/- 0.0022
Ecliptic XDOT 0.00102903 +/- 0.0000
Ecliptic YDOT -0.00252681 +/- 0.0000
Ecliptic ZDOT -0.00106313 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.63741564 +/- 0.0111
Geocenter to KBO 38.66295234 +/- 0.0128
# Hcoef: 8.86
The following table shows the complete astrometric record for 19GJ185. 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 (19GJ185) followed by the observatory code and reference code for the source of the astrometry.
2017 04 01.474667 13 29 44.19 +01 04 59.3 19GJ185 T09 C~85KE 2017 04 02.531102 13 29 39.14 +01 05 26.4 19GJ185 T09 C~85KE 2019 03 11.597720 13 40 36.63 -01 12 55.2 19GJ185 T09 C~85KE 2019 03 11.629249 13 40 36.50 -01 12 54.2 19GJ185 T09 C~85KE 2019 04 07.42596 13 38 37.79 -01 01 41.1 24.7i 19GJ185 T09 C~85KE 2019 04 07.46665 13 38 37.57 -01 01 40.1 24.3i 19GJ185 T09 C~85KE 2019 04 07.52320 13 38 37.30 -01 01 38.5 24.5i 19GJ185 T09 C~85KE 2019 05 03.450006 13 36 30.69 -00 52 28.3 19GJ185 T09 C~85KE 2019 05 09.495643 13 36 02.83 -00 50 53.0 19GJ185 T09 C~85KE 2019 05 28.30688 13 34 46.64 -00 47 47.1 24.4z 19GJ185 T09 C~85KE 2019 05 28.34762 13 34 46.48 -00 47 46.9 24.9z 19GJ185 T09 C~85KE 2019 05 28.36121 13 34 46.45 -00 47 46.9 24.6z 19GJ185 T09 C~85KE 2019 05 28.39881 13 34 46.31 -00 47 46.6 24.7z 19GJ185 T09 C~85KE 2019 05 28.40148 13 34 46.29 -00 47 46.6 24.8z 19GJ185 T09 C~85KE
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 -0.07 0.00 -0.08
2 0.0029 -80.38 0.07 -3.11 0.08
3 1.9415 12182.50 0.12 -4030.17 -0.17
4 1.9416 12180.31 -0.07 -4029.97 0.00
5 2.0149 10271.42 0.11 -4068.62 0.04
6 2.0150 10267.98 -0.14 -4068.92 -0.05
7 2.0152 10263.61 -0.08 -4068.95 0.21
8 2.0862 8292.25 0.03 -4266.30 0.02
9 2.1027 7868.30 0.08 -4333.69 0.05
10 2.1542 6737.14 0.03 -4587.41 -0.00
11 2.1543 6734.83 -0.15 -4588.12 -0.08
12 2.1544 6734.42 0.14 -4588.29 -0.04
13 2.1545 6732.35 0.04 -4588.79 0.04
14 2.1545 6732.07 -0.10 -4588.91 -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.
19GJ185 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.937 46.136 45.776 ecceobj 0.165 0.176 0.155 incobj 22.818 22.823 22.812 qmin 37.379 37.008 37.680 qmax 55.440 56.279 54.812 amean 46.222 46.422 46.059 amin 45.832 46.030 45.675 amax 46.663 46.894 46.499 emean 0.174 0.184 0.164 emin 0.159 0.171 0.150 emax 0.189 0.200 0.179 imean 21.804 21.813 21.799 imin 21.379 21.362 21.385 imax 22.193 22.232 22.184 excite_mean 0.410 0.415 0.406 fracstop 1.000 1.000 1.000 cjmean 2.917 2.915 2.919 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 179.2 179.1 179.0 kozaiamp 180.0 179.9 180.0