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: 19GV184
# Created Mon Apr 28 01:11:15 2025
# Orbit generated from Bernstein formalism
# Fitting 19 observations of 19
# Arc: 1.05y
# First observation: 2018/03/18
# Last observation: 2019/04/04
Preliminary a, adot, b, bdot, g, gdot:
-0.000012 0.026624 -0.000008 0.005253 0.024478 0.000000
# Chi-squared of fit: 12.27 DOF: 32 RMS: 0.14
# Min/Max residuals: -0.30 0.31
# Exact a, adot, b, bdot, g, gdot:
1.701571E-05 2.637307E-02 3.257655E-06 5.203180E-03 2.452131E-02 -1.041835E-02
# Covariance matrix:
1.3606E-12 3.3105E-12 -5.5721E-14 9.6051E-13 3.1747E-12 1.7802E-10
3.3105E-12 1.6978E-11 -2.4907E-13 4.0703E-12 1.2010E-11 7.5356E-10
-5.5721E-14 -2.4907E-13 3.4934E-13 -4.2839E-13 -1.8189E-13 -1.1397E-11
9.6051E-13 4.0703E-12 -4.2839E-13 1.5195E-12 3.0993E-12 1.8878E-10
3.1747E-12 1.2010E-11 -1.8189E-13 3.0993E-12 1.0011E-11 5.7429E-10
1.7802E-10 7.5356E-10 -1.1397E-11 1.8878E-10 5.7429E-10 3.4960E-08
# lat0 lon0 xBary yBary zBary JD0
3.458116 178.782630 0.025492 0.060036 -0.992213 2458196.100871
# Heliocentric elements and errors
Epoch: 2458190.5000 = 2018/03/13
Mean Anomaly: 343.96661 +/- 0.322
Argument of Peri: 78.08374 +/- 0.433
Long of Asc Node: 162.08070 +/- 0.003
Inclination: 11.61601 +/- 0.002
Eccentricity: 0.56790700 +/- 0.0079
Semi-Major Axis: 78.59634682 +/- 1.0523
Time of Perihelion: 2469525.5876 +/- 10.4
Perihelion: 33.96093096 +/- 0.7682
Aphelion: 123.23176268 +/- 1.7623
Period (y) 696.8058 +/- 13.99
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -41.69200717 +/- 0.0053
Ecliptic Y 0.90425030 +/- 0.0002
Ecliptic Z 2.46001860 +/- 0.0003
Ecliptic XDOT 0.00113969 +/- 0.0000
Ecliptic YDOT -0.00297383 +/- 0.0000
Ecliptic ZDOT 0.00050957 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.77430815 +/- 0.0052
Geocenter to KBO 40.78084886 +/- 0.0053
# Hcoef: 8.16
The following table shows the complete astrometric record for 19GV184. 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 (19GV184) followed by the observatory code and reference code for the source of the astrometry.
2018 03 18.600070 12 01 02.51 +03 39 23.9 19GV184 T09 C~870j 2018 04 22.424355 11 58 39.70 +03 55 51.9 19GV184 T09 C~870j 2018 04 24.382594 11 58 32.86 +03 56 36.3 19GV184 T09 C~870j 2018 04 24.409486 11 58 32.77 +03 56 36.9 19GV184 T09 C~870j 2018 04 24.504079 11 58 32.44 +03 56 38.9 19GV184 T09 C~870j 2019 02 05.55162 12 09 43.39 +02 58 36.3 24.2i 19GV184 T09 C~83GF 2019 02 05.55500 12 09 43.38 +02 58 36.0 23.9i 19GV184 T09 C~83GF 2019 02 05.59805 12 09 43.25 +02 58 37.2 24.1i 19GV184 T09 C~83GF 2019 02 05.62497 12 09 43.19 +02 58 37.9 24.0i 19GV184 T09 C~83GF 2019 03 03.51760 12 08 13.64 +03 11 08.8 24.1z 19GV184 T09 C~83GF 2019 03 03.52564 12 08 13.61 +03 11 09.3 23.8z 19GV184 T09 C~83GF 2019 03 03.53922 12 08 13.55 +03 11 09.6 23.8z 19GV184 T09 C~83GF 2019 03 03.58217 12 08 13.37 +03 11 11.0 23.2z 19GV184 T09 C~83GF 2019 03 03.61973 12 08 13.22 +03 11 12.0 24.2z 19GV184 T09 C~83GF 2019 03 03.63313 12 08 13.15 +03 11 13.0 24.0z 19GV184 T09 C~83GF 2019 04 04.44671 12 05 56.00 +03 27 58.2 25.0g 19GV184 T09 C~83GF 2019 04 04.46785 12 05 55.91 +03 27 58.5 25.1g 19GV184 T09 C~83GG 2019 04 04.46994 12 05 55.88 +03 27 59.0 25.0g 19GV184 T09 C~83GG 2019 04 04.49094 12 05 55.80 +03 27 59.5 25.5g 19GV184 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 -0.00 0.00 0.02
2 0.0953 -2354.21 0.31 55.19 0.11
3 0.1007 -2465.79 -0.15 55.20 -0.03
4 0.1008 -2467.27 -0.10 55.22 0.00
5 0.1010 -2472.60 -0.06 55.09 -0.09
6 0.8869 8132.62 -0.06 873.12 0.26
7 0.8869 8132.60 0.09 872.79 -0.10
8 0.8871 8130.33 -0.10 873.11 -0.05
9 0.8871 8129.23 0.09 873.39 0.06
10 0.9580 6597.52 0.08 1024.45 -0.24
11 0.9580 6596.91 0.03 1024.73 0.01
12 0.9581 6595.96 0.03 1024.64 -0.14
13 0.9582 6592.93 -0.01 1024.85 -0.11
14 0.9583 6590.47 0.13 1024.86 -0.26
15 0.9583 6589.10 -0.30 1025.36 0.18
16 1.0454 4303.06 0.07 1125.09 0.18
17 1.0455 4301.71 0.23 1124.83 -0.11
18 1.0455 4301.10 -0.24 1125.11 0.17
19 1.0456 4299.80 -0.03 1125.09 0.13
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.
19GV184 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 76.776 79.370 74.468 ecceobj 0.558 0.578 0.538 incobj 11.656 11.653 11.659 qmin 33.133 32.635 33.722 qmax 128.529 130.762 119.211 amean 77.998 80.029 75.209 amin 75.430 78.785 74.071 amax 81.263 82.068 77.173 emean 0.561 0.582 0.534 emin 0.540 0.572 0.518 emax 0.583 0.593 0.551 imean 11.515 10.553 12.259 imin 10.550 10.143 10.525 imax 12.910 10.942 13.587 excite_mean 0.596 0.610 0.575 fracstop 1.000 1.000 1.000 cjmean 2.996 2.983 3.012 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 195.3 155.3 167.0 kozaiamp 179.9 79.1 179.9