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: 19GX184
# Created Mon Apr 28 01:11:15 2025
# Orbit generated from Bernstein formalism
# Fitting 13 observations of 13
# Arc: 57.96d
# First observation: 2019/02/05
# Last observation: 2019/04/04
Preliminary a, adot, b, bdot, g, gdot:
0.000002 0.026086 -0.000002 0.001034 0.024946 0.000000
# Chi-squared of fit: 7.60 DOF: 20 RMS: 0.14
# Min/Max residuals: -0.31 0.19
# Exact a, adot, b, bdot, g, gdot:
1.733608E-05 2.460524E-02 -6.032346E-08 1.053641E-03 2.454113E-02 -9.707795E-04
# Covariance matrix:
4.1998E-13 8.9822E-11 -7.4896E-14 -1.6391E-12 1.9582E-11 1.1685E-09
8.9822E-11 1.5534E-07 -1.1812E-10 -2.9005E-09 3.1395E-08 1.4658E-06
-7.4896E-14 -1.1812E-10 3.6857E-13 8.3672E-15 -2.3933E-11 -1.1318E-09
-1.6391E-12 -2.9005E-09 8.3672E-15 8.3131E-11 -5.8543E-10 -2.7101E-08
1.9582E-11 3.1395E-08 -2.3933E-11 -5.8543E-10 6.3574E-09 2.9969E-07
1.1685E-09 1.4658E-06 -1.1318E-09 -2.7101E-08 2.9969E-07 1.4868E-05
# lat0 lon0 xBary yBary zBary JD0
3.965017 -177.949223 0.715181 0.047593 -0.685702 2458520.055801
# Heliocentric elements and errors
Epoch: 2458520.5000 = 2019/02/06
Mean Anomaly: 319.02085 +/- 70.363
Argument of Peri: 105.01388 +/- 88.400
Long of Asc Node: 124.02059 +/- 0.563
Inclination: 4.64310 +/- 0.030
Eccentricity: 0.08467500 +/- 0.1032
Semi-Major Axis: 44.10859796 +/- 0.3860
Time of Perihelion: 2470700.4019 +/- 20912.7
Perihelion: 40.37370250 +/- 4.5671
Aphelion: 47.84349343 +/- 4.5726
Period (y) 292.9497 +/- 3.85
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -41.33578449 +/- 0.1320
Ecliptic Y -0.77275453 +/- 0.0047
Ecliptic Z 2.81759441 +/- 0.0092
Ecliptic XDOT 0.00022237 +/- 0.0004
Ecliptic YDOT -0.00274074 +/- 0.0001
Ecliptic ZDOT 0.00010957 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.43890765 +/- 0.1317
Geocenter to KBO 40.74791290 +/- 0.1324
# Hcoef: 8.19
The following table shows the complete astrometric record for 19GX184. 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 (19GX184) followed by the observatory code and reference code for the source of the astrometry.
2019 02 05.55500 12 13 50.13 +02 49 20.8 23.5i 19GX184 T09 C~83GG 2019 02 05.58442 12 13 50.07 +02 49 21.3 24.1i 19GX184 T09 C~83GG 2019 02 05.60072 12 13 50.02 +02 49 21.5 24.3i 19GX184 T09 C~83GG 2019 02 05.62764 12 13 49.94 +02 49 22.0 24.0i 19GX184 T09 C~83GG 2019 03 03.52028 12 12 18.50 +03 01 07.5 23.8z 19GX184 T09 C~83GG 2019 03 03.52564 12 12 18.47 +03 01 07.6 23.7z 19GX184 T09 C~83GG 2019 03 03.52832 12 12 18.46 +03 01 07.8 23.9z 19GX184 T09 C~83GG 2019 03 03.58217 12 12 18.22 +03 01 09.5 23.7z 19GX184 T09 C~83GG 2019 03 03.62241 12 12 18.08 +03 01 10.7 23.8z 19GX184 T09 C~83GG 2019 04 04.44950 12 09 57.11 +03 17 02.7 25.3g 19GX184 T09 C~83GG 2019 04 04.46994 12 09 57.02 +03 17 03.1 25.7g 19GX184 T09 C~83GG 2019 04 04.49303 12 09 56.92 +03 17 03.9 25.1g 19GX184 T09 C~83GG 2019 04 04.51189 12 09 56.82 +03 17 04.7 25.4g 19GX184 T09 C~83GG
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 -0.31 0.00 0.15
2 0.0001 -1.02 0.09 0.10 0.12
3 0.0001 -1.79 0.11 -0.01 -0.07
4 0.0002 -3.09 0.11 -0.03 -0.21
5 0.0711 -1540.54 0.07 102.25 -0.03
6 0.0711 -1540.99 -0.00 102.16 -0.13
7 0.0711 -1541.21 -0.03 102.28 -0.01
8 0.0713 -1545.18 -0.23 102.41 -0.00
9 0.0714 -1547.59 0.19 102.68 0.17
10 0.1585 -3863.81 0.02 137.15 -0.01
11 0.1586 -3865.20 0.11 136.98 -0.16
12 0.1586 -3866.89 0.10 137.12 0.01
13 0.1587 -3868.59 -0.22 137.26 0.16
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.
19GX184 quality flag:1 Type: CLASSICAL SCATNEAR SCATNEAR axisobj 43.837 59.230 42.636 ecceobj 0.077 0.426 0.132 incobj 4.642 4.554 4.689 qmin 40.003 30.854 33.368 qmax 48.288 91.407 52.787 amean 44.029 55.089 42.844 amin 43.684 37.736 42.246 amax 44.417 62.662 43.429 emean 0.072 0.392 0.179 emin 0.056 0.170 0.125 emax 0.088 0.459 0.220 imean 3.309 3.709 6.420 imin 2.542 0.830 1.882 imax 4.029 5.478 12.514 excite_mean 0.093 0.398 0.215 fracstop 1.000 1.000 1.000 cjmean 3.092 3.027 3.031 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 180.7 167.3 177.5 kozaiamp 180.0 179.9 180.0