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: 19WL34 # Created Wed May 8 01:18:24 2024 # Orbit generated from Bernstein formalism # Fitting 99 observations of 99 # Arc: 118.91d # First observation: 2019/09/29 # Last observation: 2020/01/26 Preliminary a, adot, b, bdot, g, gdot: -0.000152 0.044251 0.000211 -0.004190 0.032170 0.000000 # Chi-squared of fit: 59.60 DOF: 192 RMS: 0.14 # Min/Max residuals: -0.36 0.42 # Exact a, adot, b, bdot, g, gdot: 1.826253E-05 3.651034E-02 -1.910516E-06 -2.194306E-03 3.118260E-02 4.967871E-03 # Covariance matrix: 1.9283E-13 -1.0165E-12 -1.9755E-14 1.7801E-13 2.2162E-13 4.3588E-11 -1.0165E-12 6.7941E-11 1.9095E-12 -1.8085E-11 5.1635E-12 -1.2478E-09 -1.9755E-14 1.9095E-12 1.3500E-13 -8.3512E-13 1.4955E-13 -3.5758E-11 1.7801E-13 -1.8085E-11 -8.3512E-13 6.4565E-12 -1.4402E-12 3.3605E-10 2.2162E-13 5.1635E-12 1.4955E-13 -1.4402E-12 1.1255E-12 -1.7283E-11 4.3588E-11 -1.2478E-09 -3.5758E-11 3.3605E-10 -1.7283E-11 3.2224E-08 # lat0 lon0 xBary yBary zBary JD0 -17.995662 32.473000 0.442818 -0.276909 -0.852453 2458755.943631 # Heliocentric elements and errors Epoch: 2458750.5000 = 2019/09/24 Mean Anomaly: 29.07548 +/- 0.669 Argument of Peri: 214.70598 +/- 1.183 Long of Asc Node: 133.81934 +/- 0.008 Inclination: 17.89006 +/- 0.000 Eccentricity: 0.20603102 +/- 0.0037 Semi-Major Axis: 39.50574658 +/- 0.0539 Time of Perihelion: 2451425.4046 +/- 167.9 Perihelion: 31.36633716 +/- 0.1519 Aphelion: 47.64515600 +/- 0.1596 Period (y) 248.3125 +/- 0.51 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 26.72803641 +/- 0.0009 Ecliptic Y 16.47624978 +/- 0.0006 Ecliptic Z -9.90766685 +/- 0.0003 Ecliptic XDOT -0.00141285 +/- 0.0000 Ecliptic YDOT 0.00289611 +/- 0.0000 Ecliptic ZDOT -0.00031822 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 32.92440736 +/- 0.0008 Geocenter to KBO 32.06916973 +/- 0.0011 # Hcoef: 10.20
The following table shows the complete astrometric record for 19WL34. 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 (19WL34) followed by the observatory code and reference code for the source of the astrometry.
2019 09 29.44283 02 25 34.12 -04 36 27.5 26.0r 19WL34 T09 C~7ulR 2019 09 29.45410 02 25 34.08 -04 36 28.2 25.9r 19WL34 T09 C~7ulR 2019 09 29.46532 02 25 34.01 -04 36 28.7 25.7r 19WL34 T09 C~7ulR 2019 09 29.50915 02 25 33.80 -04 36 30.6 24.9i 19WL34 T09 C~7ulR 2019 09 29.54579 02 25 33.65 -04 36 31.9 25.0i 19WL34 T09 C~7ulR 2019 09 29.60928 02 25 33.33 -04 36 34.4 25.2z 19WL34 T09 C~7ulR 2019 10 23.50757 02 23 28.19 -04 51 40.5 24.4z 19WL34 T09 C~7ulR 2019 10 23.52959 02 23 28.04 -04 51 41.2 25.0z 19WL34 T09 C~7ulR 2019 10 23.55161 02 23 27.93 -04 51 42.0 24.8z 19WL34 T09 C~7ulR 2019 10 23.56977 02 23 27.82 -04 51 42.7 24.5z 19WL34 T09 C~7ulR 2019 10 27.29969 02 23 06.61 -04 53 40.8 25.0r 19WL34 T09 C~7ulR 2019 10 27.31087 02 23 06.55 -04 53 41.5 24.9r 19WL34 T09 C~7ulR 2019 10 27.42527 02 23 05.88 -04 53 44.9 24.9i 19WL34 T09 C~7ulR 2019 10 27.44355 02 23 05.77 -04 53 45.2 24.8i 19WL34 T09 C~7ulR 2019 10 31.49228 02 22 42.53 -04 55 44.3 25.0z 19WL34 T09 C~7ulR 2019 10 31.51437 02 22 42.40 -04 55 45.0 24.6z 19WL34 T09 C~7ulR 2019 10 31.53641 02 22 42.28 -04 55 45.8 24.0z 19WL34 T09 C~7ulR 2019 11 01.35562 02 22 37.58 -04 56 08.3 26.2g 19WL34 T09 C~7ulR 2019 11 01.36684 02 22 37.51 -04 56 08.3 25.8g 19WL34 T09 C~7ulR 2019 11 01.44733 02 22 37.06 -04 56 11.0 25.6g 19WL34 T09 C~7ulR 2019 11 01.57101 02 22 36.33 -04 56 14.4 26.0g 19WL34 T09 C~7ulR 2019 11 27.31047 02 20 15.72 -05 03 58.5 25.4i 19WL34 T09 C~7ulR 2019 11 27.31430 02 20 15.70 -05 03 58.3 25.1i 19WL34 T09 C~7ulR 2019 11 27.31799 02 20 15.69 -05 03 58.5 25.0i 19WL34 T09 C~7ulR 2019 11 27.32876 02 20 15.63 -05 03 58.8 25.0i 19WL34 T09 C~7ulR 2019 11 27.33260 02 20 15.61 -05 03 58.6 24.8i 19WL34 T09 C~7ulR 2019 11 27.33643 02 20 15.59 -05 03 58.8 24.8i 19WL34 T09 C~7ulR 2019 11 27.34013 02 20 15.58 -05 03 58.8 25.0i 19WL34 T09 C~7ulR 2019 11 27.35091 02 20 15.52 -05 03 58.6 25.1i 19WL34 T09 C~7ulR 2019 11 27.35474 02 20 15.50 -05 03 58.8 24.9i 19WL34 T09 C~7ulR 2019 11 27.36226 02 20 15.47 -05 03 59.0 25.1i 19WL34 T09 C~7ulR 2019 11 27.37685 02 20 15.38 -05 03 59.0 25.3i 19WL34 T09 C~7ulR 2019 11 27.44597 02 20 15.03 -05 03 59.5 25.8r 19WL34 T09 C~7ulR 2019 11 27.44980 02 20 15.00 -05 03 59.6 25.1r 19WL34 T09 C~7ulR 2019 11 29.32156 02 20 05.90 -05 04 12.6 26.3r 19WL34 T09 C~7ulR 2019 11 29.35191 02 20 05.75 -05 04 12.6 25.9r 19WL34 T09 C~7ulR 2019 11 29.36609 02 20 05.67 -05 04 12.9 26.2r 19WL34 T09 C~7ulR 2019 12 04.38500 02 19 42.34 -05 04 32.2 25.0i 19WL34 T09 C~7ulR 2019 12 04.38884 02 19 42.32 -05 04 32.4 25.3i 19WL34 T09 C~7ulR 2019 12 04.39267 02 19 42.31 -05 04 32.4 25.6i 19WL34 T09 C~7ulR 2019 12 04.39636 02 19 42.30 -05 04 32.2 25.2i 19WL34 T09 C~7ulR 2019 12 04.40708 02 19 42.25 -05 04 32.4 24.8i 19WL34 T09 C~7ulR 2019 12 04.41091 02 19 42.24 -05 04 32.2 25.0i 19WL34 T09 C~7ulR 2019 12 04.41474 02 19 42.22 -05 04 32.2 24.7i 19WL34 T09 C~7ulR 2019 12 04.41841 02 19 42.20 -05 04 32.0 25.5i 19WL34 T09 C~7ulR 2019 12 04.42904 02 19 42.14 -05 04 32.2 25.3i 19WL34 T09 C~7ulR 2019 12 04.43288 02 19 42.13 -05 04 32.2 25.0i 19WL34 T09 C~7ulR 2019 12 04.45101 02 19 42.05 -05 04 32.4 25.5i 19WL34 T09 C~7ulR 2019 12 04.45483 02 19 42.03 -05 04 32.2 25.1i 19WL34 T09 C~7ulR 2019 12 22.27031 02 18 35.62 -05 02 44.3 26.1r 19WL34 T09 C~7ulR 2019 12 22.28553 02 18 35.58 -05 02 44.0 25.8r 19WL34 T09 C~7ulR 2019 12 22.28936 02 18 35.54 -05 02 43.8 26.0r 19WL34 T09 C~7ulR 2019 12 22.30070 02 18 35.52 -05 02 43.8 25.7r 19WL34 T09 C~7ulR 2019 12 22.30453 02 18 35.52 -05 02 43.8 25.4r 19WL34 T09 C~7ulR 2019 12 22.35082 02 18 35.39 -05 02 43.1 25.5i 19WL34 T09 C~7ulR 2019 12 28.21870 02 18 20.14 -05 01 07.7 25.9g 19WL34 T09 C~7ulR 2019 12 28.23637 02 18 20.09 -05 01 07.2 25.8g 19WL34 T09 C~7ulR 2019 12 28.27930 02 18 20.01 -05 01 06.5 26.3g 19WL34 T09 C~7ulR 2019 12 28.29444 02 18 19.95 -05 01 06.2 26.4g 19WL34 T09 C~7ulR 2019 12 28.31447 02 18 19.90 -05 01 05.7 26.0g 19WL34 T09 C~7ulR 2019 12 28.32574 02 18 19.89 -05 01 05.7 26.2g 19WL34 T09 C~7ulR 2019 12 28.34287 02 18 19.83 -05 01 05.3 25.7g 19WL34 T09 C~7ulR 2019 12 28.34670 02 18 19.81 -05 01 05.2 26.1g 19WL34 T09 C~7ulR 2020 01 20.24077 02 17 57.43 -04 50 33.5 25.8r 19WL34 T09 C~7ulR 2020 01 20.24468 02 17 57.44 -04 50 33.3 25.4r 19WL34 T09 C~7ulR 2020 01 20.25252 02 17 57.43 -04 50 32.8 25.2r 19WL34 T09 C~7ulR 2020 01 20.25650 02 17 57.44 -04 50 32.7 25.9r 19WL34 T09 C~7ulR 2020 01 20.26044 02 17 57.43 -04 50 32.7 25.7r 19WL34 T09 C~7ulR 2020 01 20.26437 02 17 57.44 -04 50 32.3 25.7r 19WL34 T09 C~7ulR 2020 01 20.26832 02 17 57.43 -04 50 32.5 25.4r 19WL34 T09 C~7ulR 2020 01 20.32078 02 17 57.45 -04 50 30.5 25.0i 19WL34 T09 C~7ulR 2020 01 20.32474 02 17 57.45 -04 50 30.1 25.4i 19WL34 T09 C~7ulR 2020 01 20.32875 02 17 57.48 -04 50 30.0 25.0i 19WL34 T09 C~7ulR 2020 01 20.33271 02 17 57.45 -04 50 30.0 25.4i 19WL34 T09 C~7ulR 2020 01 20.34467 02 17 57.45 -04 50 29.5 25.2i 19WL34 T09 C~7ulR 2020 01 20.34872 02 17 57.48 -04 50 29.5 25.2i 19WL34 T09 C~7ulR 2020 01 22.25322 02 17 58.41 -04 49 20.3 25.4r 19WL34 T09 C~7ulR 2020 01 22.25708 02 17 58.39 -04 49 20.3 25.9r 19WL34 T09 C~7ulR 2020 01 22.26093 02 17 58.41 -04 49 20.1 25.7r 19WL34 T09 C~7ulR 2020 01 22.26482 02 17 58.39 -04 49 19.8 25.9r 19WL34 T09 C~7ulR 2020 01 22.26868 02 17 58.41 -04 49 19.8 25.6r 19WL34 T09 C~7ulR 2020 01 22.27254 02 17 58.41 -04 49 19.8 25.7r 19WL34 T09 C~7ulR 2020 01 22.27640 02 17 58.41 -04 49 19.4 26.0r 19WL34 T09 C~7ulR 2020 01 22.28030 02 17 58.41 -04 49 19.4 25.4r 19WL34 T09 C~7ulR 2020 01 22.28419 02 17 58.39 -04 49 19.2 25.5r 19WL34 T09 C~7ulR 2020 01 22.28809 02 17 58.43 -04 49 19.1 25.3r 19WL34 T09 C~7ulR 2020 01 22.31711 02 17 58.44 -04 49 17.9 25.9g 19WL34 T09 C~7ulR 2020 01 22.33262 02 17 58.44 -04 49 17.2 26.1g 19WL34 T09 C~7ulR 2020 01 22.34451 02 17 58.44 -04 49 17.1 26.1g 19WL34 T09 C~7ulR 2020 01 26.30652 02 18 01.81 -04 46 45.5 25.4i 19WL34 T09 C~7ulR 2020 01 26.31048 02 18 01.83 -04 46 45.5 25.4i 19WL34 T09 C~7ulR 2020 01 26.31835 02 18 01.84 -04 46 45.0 24.6i 19WL34 T09 C~7ulR 2020 01 26.32229 02 18 01.83 -04 46 44.7 24.7i 19WL34 T09 C~7ulR 2020 01 26.33010 02 18 01.84 -04 46 44.5 25.3i 19WL34 T09 C~7ulR 2020 01 26.33397 02 18 01.86 -04 46 44.5 24.4i 19WL34 T09 C~7ulR 2020 01 26.33784 02 18 01.86 -04 46 44.5 24.7i 19WL34 T09 C~7ulR 2020 01 26.34170 02 18 01.84 -04 46 44.3 24.7i 19WL34 T09 C~7ulR 2020 01 26.34552 02 18 01.85 -04 46 44.3 25.1i 19WL34 T09 C~7ulR 2020 01 26.34940 02 18 01.87 -04 46 44.2 24.3i 19WL34 T09 C~7ulR
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 0.05 0.00 0.16
2 0.0000 -0.80 0.16 -0.46 -0.12
3 0.0001 -1.95 -0.09 -0.58 -0.06
4 0.0002 -5.55 -0.16 -1.31 -0.11
5 0.0003 -8.10 0.24 -1.78 -0.01
6 0.0005 -13.45 -0.01 -2.52 0.22
7 0.0659 -2079.97 0.02 -226.70 0.01
8 0.0659 -2082.32 -0.30 -226.61 0.14
9 0.0660 -2084.14 -0.09 -226.81 -0.02
10 0.0661 -2085.92 -0.20 -226.92 -0.09
11 0.0763 -2424.21 0.14 -231.68 0.14
12 0.0763 -2425.29 0.09 -232.04 -0.22
13 0.0766 -2435.87 0.07 -231.88 -0.09
14 0.0767 -2437.52 0.11 -231.61 0.17
15 0.0877 -2804.72 -0.02 -227.18 0.04
16 0.0878 -2806.79 -0.06 -227.19 -0.03
17 0.0879 -2808.75 0.00 -227.34 -0.25
18 0.0901 -2882.48 -0.08 -224.96 0.09
19 0.0901 -2883.46 -0.04 -224.61 0.41
20 0.0904 -2890.70 0.09 -224.89 -0.15
21 0.0907 -2902.12 -0.04 -224.43 -0.12
22 0.1612 -5038.05 0.00 42.76 -0.01
23 0.1612 -5038.26 0.07 43.05 0.21
24 0.1612 -5038.47 0.13 42.91 0.01
25 0.1612 -5039.42 -0.02 42.93 -0.17
26 0.1612 -5039.63 0.05 43.21 0.05
27 0.1612 -5039.98 -0.02 43.13 -0.11
28 0.1613 -5040.12 0.12 43.18 -0.12
29 0.1613 -5040.90 0.13 43.67 0.17
30 0.1613 -5041.25 0.07 43.58 0.02
31 0.1613 -5041.74 0.13 43.54 -0.16
32 0.1614 -5043.01 -0.06 43.99 0.03
33 0.1615 -5048.10 -0.08 45.27 0.07
34 0.1616 -5048.56 -0.25 45.32 0.06
35 0.1667 -5181.11 -0.05 78.61 -0.13
36 0.1668 -5183.23 0.00 79.36 0.05
37 0.1668 -5184.45 -0.21 79.48 -0.11
38 0.1805 -5519.61 -0.13 178.00 0.05
39 0.1806 -5519.96 -0.23 177.91 -0.12
40 0.1806 -5520.10 -0.12 177.96 -0.15
41 0.1806 -5520.18 0.05 178.20 0.01
42 0.1806 -5520.95 -0.03 178.26 -0.15
43 0.1806 -5521.02 0.14 178.50 0.00
44 0.1806 -5521.31 0.11 178.60 0.02
45 0.1806 -5521.52 0.13 178.88 0.23
46 0.1807 -5522.43 -0.09 179.00 0.12
47 0.1807 -5522.57 0.02 179.05 0.08
48 0.1807 -5523.77 -0.00 179.26 -0.09
49 0.1807 -5523.98 0.03 179.55 0.12
50 0.2295 -6423.79 0.03 613.30 -0.10
51 0.2295 -6424.26 0.15 613.78 -0.05
52 0.2296 -6424.75 -0.21 614.17 0.23
53 0.2296 -6425.03 -0.06 614.27 0.01
54 0.2296 -6425.03 0.09 614.27 -0.09
55 0.2297 -6426.63 0.24 615.58 -0.08
56 0.2458 -6609.71 0.06 781.75 -0.13
57 0.2458 -6610.24 0.00 782.47 0.07
58 0.2460 -6611.14 0.29 783.53 -0.14
59 0.2460 -6611.88 -0.04 784.11 -0.01
60 0.2461 -6612.42 -0.03 784.83 0.12
61 0.2461 -6612.56 0.13 784.88 -0.16
62 0.2461 -6613.27 -0.11 785.56 0.00
63 0.2461 -6613.52 -0.26 785.76 0.08
64 0.3088 -6717.86 -0.06 1493.30 -0.19
65 0.3088 -6717.65 0.09 1493.44 -0.18
66 0.3089 -6717.63 -0.01 1493.96 0.09
67 0.3089 -6717.45 0.10 1494.01 0.01
68 0.3089 -6717.59 -0.10 1494.06 -0.07
69 0.3089 -6717.32 0.11 1494.38 0.13
70 0.3089 -6717.53 -0.16 1494.25 -0.14
71 0.3090 -6716.57 -0.04 1496.03 -0.05
72 0.3091 -6716.44 0.03 1496.41 0.20
73 0.3091 -6715.98 0.42 1496.35 0.02
74 0.3091 -6716.41 -0.07 1496.50 0.04
75 0.3091 -6716.24 -0.09 1496.98 0.13
76 0.3091 -6715.82 0.26 1496.83 -0.16
77 0.3143 -6679.56 0.16 1557.44 -0.08
78 0.3143 -6679.85 -0.20 1557.54 -0.11
79 0.3144 -6679.50 0.08 1557.62 -0.15
80 0.3144 -6679.68 -0.18 1558.01 0.11
81 0.3144 -6679.40 0.03 1557.91 -0.11
82 0.3144 -6679.40 -0.05 1557.91 -0.24
83 0.3144 -6679.26 0.01 1558.28 0.01
84 0.3144 -6679.26 -0.07 1558.28 -0.11
85 0.3144 -6679.48 -0.36 1558.57 0.05
86 0.3144 -6678.88 0.16 1558.47 -0.18
87 0.3145 -6678.34 0.13 1559.55 -0.04
88 0.3146 -6678.10 0.05 1560.21 0.12
89 0.3146 -6678.07 -0.15 1560.30 -0.16
90 0.3254 -6579.85 -0.11 1686.42 0.27
91 0.3254 -6579.57 0.06 1686.32 0.04
92 0.3255 -6579.26 0.15 1686.74 0.21
93 0.3255 -6579.30 0.00 1687.08 0.42
94 0.3255 -6579.09 -0.01 1687.21 0.31
95 0.3255 -6578.81 0.17 1687.11 0.08
96 0.3255 -6578.81 0.06 1687.11 -0.04
97 0.3255 -6579.03 -0.26 1687.40 0.12
98 0.3255 -6578.89 -0.23 1687.35 -0.05
99 0.3255 -6578.57 -0.02 1687.35 -0.18
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.
19WL34 quality flag:2 Type: 3:2E CENTAURR 3:2E axisobj 39.867 40.193 39.562 ecceobj 0.212 0.224 0.199 incobj 17.887 17.887 17.887 qmin 30.758 29.478 31.123 qmax 48.856 51.118 48.372 amean 39.456 39.405 39.456 amin 38.962 36.953 38.904 amax 40.034 40.463 40.061 emean 0.202 0.238 0.179 emin 0.181 0.195 0.132 emax 0.222 0.263 0.211 imean 16.615 14.672 16.923 imin 16.162 13.807 16.104 imax 17.147 16.564 18.501 excite_mean 0.350 0.348 0.342 fracstop 1.000 0.047 1.000 cjmean 2.912 2.914 2.918 libcent 0 179.9 -180.0 179.3 libamp 0 118.1 -180.0 135.4 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 156.5 300.5 173.5 kozaiamp 180.0 70.3 180.0