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: 19UV173 # Created Tue Apr 1 01:11:17 2025 # Orbit generated from Bernstein formalism # Fitting 47 observations of 47 # Arc: 4.22y # First observation: 2015/10/10 # Last observation: 2019/12/28 Preliminary a, adot, b, bdot, g, gdot: -0.000727 0.031160 0.000129 -0.012818 0.028584 0.000000 # Chi-squared of fit: 28.20 DOF: 88 RMS: 0.14 # Min/Max residuals: -0.39 0.33 # Exact a, adot, b, bdot, g, gdot: 1.745699E-05 3.011608E-02 -7.819135E-06 -1.247704E-02 2.655346E-02 -5.514918E-03 # Covariance matrix: 6.6489E-13 -7.1563E-13 -1.2133E-13 2.6123E-13 -4.2816E-13 -4.4436E-12 -7.1563E-13 1.2694E-12 2.4157E-13 -5.2071E-13 7.7476E-13 8.8770E-12 -1.2133E-13 2.4157E-13 3.8491E-13 -1.8547E-13 1.4482E-13 1.7285E-12 2.6123E-13 -5.2071E-13 -1.8547E-13 2.4149E-13 -3.1055E-13 -3.7284E-12 -4.2816E-13 7.7476E-13 1.4482E-13 -3.1055E-13 6.6241E-13 5.2447E-12 -4.4436E-12 8.8770E-12 1.7285E-12 -3.7284E-12 5.2447E-12 6.3636E-11 # lat0 lon0 xBary yBary zBary JD0 -14.592029 25.488007 0.153120 -0.249409 -0.958732 2457306.064834 # Heliocentric elements and errors Epoch: 2457300.5000 = 2015/10/05 Mean Anomaly: 352.31620 +/- 0.009 Argument of Peri: 242.49671 +/- 0.035 Long of Asc Node: 174.66453 +/- 0.000 Inclination: 26.47657 +/- 0.000 Eccentricity: 0.53455421 +/- 0.0002 Semi-Major Axis: 79.32928848 +/- 0.0262 Time of Perihelion: 2462808.8622 +/- 5.9 Perihelion: 36.92348349 +/- 0.0192 Aphelion: 121.73509347 +/- 0.0428 Period (y) 706.5754 +/- 0.35 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 33.85425573 +/- 0.0010 Ecliptic Y 15.97093816 +/- 0.0005 Ecliptic Z -9.48813102 +/- 0.0003 Ecliptic XDOT -0.00212716 +/- 0.0000 Ecliptic YDOT 0.00242016 +/- 0.0000 Ecliptic ZDOT -0.00110167 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.61613817 +/- 0.0009 Geocenter to KBO 37.65987490 +/- 0.0012 # Hcoef: 9.48
The following table shows the complete astrometric record for 19UV173. 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 (19UV173) followed by the observatory code and reference code for the source of the astrometry.
2015 10 10.564045 01 55 36.74 -03 45 18.9 19UV173 T09 C~871R 2015 10 14.565827 01 55 18.44 -03 47 45.1 19UV173 T09 C~871R 2016 09 27.424179 02 04 00.60 -03 40 02.1 19UV173 T09 C~871R 2016 09 27.496033 02 04 00.32 -03 40 04.9 19UV173 T09 C~871R 2016 09 27.543918 02 04 00.12 -03 40 07.0 19UV173 T09 C~871R 2016 09 29.444647 02 03 52.41 -03 41 22.9 19UV173 T09 C~871R 2019 09 29.44283 02 26 53.66 -03 47 31.0 25.0r 19UV173 T09 C~7ulL 2019 09 29.46532 02 26 53.58 -03 47 32.2 25.1r 19UV173 T09 C~7ulL 2019 09 29.54579 02 26 53.27 -03 47 35.5 24.6i 19UV173 T09 C~7ulL 2019 09 29.60928 02 26 53.01 -03 47 37.9 25.3z 19UV173 T09 C~7ulL 2019 10 23.51107 02 25 07.96 -04 02 44.1 25.0z 19UV173 T09 C~7ulL 2019 10 23.51458 02 25 07.94 -04 02 44.1 24.6z 19UV173 T09 C~7ulL 2019 10 23.53309 02 25 07.85 -04 02 44.8 24.5z 19UV173 T09 C~7ulL 2019 10 23.53661 02 25 07.83 -04 02 44.8 24.6z 19UV173 T09 C~7ulL 2019 10 23.55861 02 25 07.74 -04 02 45.8 24.9z 19UV173 T09 C~7ulL 2019 10 23.57674 02 25 07.63 -04 02 46.0 25.4z 19UV173 T09 C~7ulL 2019 10 27.43225 02 24 49.12 -04 04 53.0 25.5i 19UV173 T09 C~7ulL 2019 10 27.44703 02 24 49.05 -04 04 53.3 26.1i 19UV173 T09 C~7ulL 2019 10 27.45055 02 24 49.03 -04 04 53.5 25.4i 19UV173 T09 C~7ulL 2019 10 27.46532 02 24 48.98 -04 04 54.0 25.4i 19UV173 T09 C~7ulL 2019 10 31.49580 02 24 29.44 -04 06 58.8 25.0z 19UV173 T09 C~7ulL 2019 10 31.51788 02 24 29.31 -04 06 59.5 24.7z 19UV173 T09 C~7ulL 2019 10 31.53991 02 24 29.22 -04 07 00.2 24.5z 19UV173 T09 C~7ulL 2019 10 31.55809 02 24 29.14 -04 07 01.0 24.8z 19UV173 T09 C~7ulL 2019 11 01.35808 02 24 25.26 -04 07 24.2 26.4g 19UV173 T09 C~7ulL 2019 11 01.36052 02 24 25.27 -04 07 24.7 26.1g 19UV173 T09 C~7ulL 2019 11 01.43842 02 24 24.86 -04 07 26.7 26.0g 19UV173 T09 C~7ulL 2019 11 01.44979 02 24 24.81 -04 07 27.1 26.0g 19UV173 T09 C~7ulL 2019 11 01.57346 02 24 24.21 -04 07 31.1 25.8g 19UV173 T09 C~7ulL 2019 11 01.57590 02 24 24.17 -04 07 30.9 26.0g 19UV173 T09 C~7ulL 2019 11 02.27437 02 24 20.81 -04 07 51.1 25.5i 19UV173 T09 C~7ulL 2019 11 02.29251 02 24 20.73 -04 07 51.8 24.9i 19UV173 T09 C~7ulL 2019 11 02.29600 02 24 20.71 -04 07 51.8 25.1i 19UV173 T09 C~7ulL 2019 11 02.31066 02 24 20.64 -04 07 52.3 24.4i 19UV173 T09 C~7ulL 2019 11 27.21087 02 22 25.50 -04 16 42.8 24.2z 19UV173 T09 C~7ulL 2019 11 27.25481 02 22 25.33 -04 16 43.1 24.4z 19UV173 T09 C~7ulL 2019 11 27.27679 02 22 25.23 -04 16 43.6 24.1z 19UV173 T09 C~7ulL 2019 11 27.36574 02 22 24.86 -04 16 44.5 24.9i 19UV173 T09 C~7ulL 2019 11 27.45540 02 22 24.47 -04 16 45.6 25.0r 19UV173 T09 C~7ulL 2019 12 22.27977 02 21 00.08 -04 18 15.2 25.1r 19UV173 T09 C~7ulL 2019 12 22.29498 02 21 00.03 -04 18 15.4 25.8r 19UV173 T09 C~7ulL 2019 12 22.30453 02 21 00.01 -04 18 15.0 25.3r 19UV173 T09 C~7ulL 2019 12 22.35465 02 20 59.88 -04 18 14.9 24.9i 19UV173 T09 C~7ulL 2019 12 22.36184 02 20 59.86 -04 18 14.7 25.1i 19UV173 T09 C~7ulL 2019 12 28.37065 02 20 46.68 -04 17 27.6 25.8i 19UV173 T09 C~7ulL 2019 12 28.40130 02 20 46.63 -04 17 27.4 25.4i 19UV173 T09 C~7ulL 2019 12 28.40513 02 20 46.63 -04 17 27.2 25.1i 19UV173 T09 C~7ulL
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 0.10 0.00 0.08
2 0.0110 -308.16 -0.05 -37.86 0.12
3 0.9661 7151.15 -0.11 -2427.92 0.00
4 0.9663 7146.23 0.12 -2429.01 -0.00
5 0.9664 7142.67 -0.00 -2429.89 -0.15
6 0.9716 7007.45 -0.07 -2458.85 -0.14
7 3.9696 26279.84 0.07 -10413.88 0.33
8 3.9696 26278.26 0.09 -10414.56 0.02
9 3.9698 26272.64 0.18 -10415.92 -0.03
10 3.9700 26268.06 0.11 -10416.71 0.21
11 4.0354 24444.15 -0.11 -10677.59 -0.04
12 4.0355 24443.87 -0.11 -10677.48 0.09
13 4.0355 24442.34 -0.14 -10677.63 0.02
14 4.0355 24442.06 -0.13 -10677.52 0.15
15 4.0356 24440.41 0.01 -10677.95 -0.19
16 4.0356 24438.78 -0.15 -10677.52 0.32
17 4.0462 24129.96 -0.08 -10692.92 0.06
18 4.0462 24128.85 0.02 -10692.81 0.21
19 4.0462 24128.50 -0.05 -10692.88 0.14
20 4.0463 24127.61 0.26 -10693.07 -0.01
21 4.0573 23805.16 0.11 -10700.67 -0.01
22 4.0574 23803.06 -0.21 -10700.60 0.07
23 4.0574 23801.53 0.04 -10700.75 -0.07
24 4.0575 23800.10 0.08 -10701.06 -0.36
25 4.0597 23736.67 0.07 -10701.09 0.22
26 4.0597 23736.63 0.22 -10701.61 -0.30
27 4.0599 23730.10 -0.02 -10701.19 0.11
28 4.0599 23729.24 0.05 -10701.29 0.01
29 4.0603 23719.28 0.04 -10701.68 -0.39
30 4.0603 23718.79 -0.25 -10701.27 0.02
31 4.0622 23663.83 -0.12 -10701.40 0.14
32 4.0622 23662.44 -0.06 -10701.61 -0.08
33 4.0622 23662.15 -0.06 -10701.49 0.04
34 4.0623 23660.98 -0.06 -10701.57 -0.05
35 4.1304 21839.48 -0.23 -10555.26 -0.14
36 4.1306 21836.97 0.12 -10554.59 0.01
37 4.1306 21835.38 -0.04 -10554.50 -0.16
38 4.1309 21829.83 0.21 -10553.28 0.01
39 4.1311 21823.92 0.14 -10552.13 0.09
40 4.1991 20601.67 0.16 -10165.75 -0.03
41 4.1991 20600.89 -0.11 -10165.66 -0.23
42 4.1992 20600.76 0.08 -10165.17 0.06
43 4.1993 20598.96 -0.02 -10164.36 -0.09
44 4.1993 20598.75 0.02 -10164.06 0.06
45 4.2158 20430.53 -0.17 -10046.63 0.04
46 4.2158 20429.90 -0.06 -10046.16 -0.12
47 4.2159 20429.98 0.11 -10045.97 -0.01
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.
19UV173 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 81.021 81.077 80.965 ecceobj 0.543 0.544 0.543 incobj 26.374 26.374 26.374 qmin 35.892 35.812 35.826 qmax 126.172 126.013 126.032 amean 79.689 79.712 79.608 amin 78.588 78.476 78.399 amax 81.398 81.391 81.325 emean 0.534 0.534 0.534 emin 0.516 0.515 0.517 emax 0.550 0.550 0.550 imean 26.031 26.052 25.971 imin 25.371 25.359 25.259 imax 27.152 27.185 27.052 excite_mean 0.691 0.691 0.691 fracstop 1.000 1.000 1.000 cjmean 2.849 2.849 2.849 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 178.0 175.8 180.4 kozaiamp 180.0 180.0 180.0