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: 15SV20 # Created Fri Nov 22 02:10:29 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 87 observations of 87 # Arc: 6.22y # First observation: 2012/10/15 # Last observation: 2019/01/03 # Chi-squared of fit: 176.17 DOF: 168 RMS: 0.25 # Min/Max residuals: -0.66 0.86 # Exact a, adot, b, bdot, g, gdot: 1.998101E-05 4.215394E-02 1.373095E-06 4.038707E-03 3.452198E-02 1.865473E-03 # Covariance matrix: 1.3199E-13 -7.7514E-14 7.6712E-15 -6.5754E-15 -1.1841E-14 -2.4766E-13 -7.7514E-14 6.6051E-14 -7.9642E-15 6.9153E-15 2.5488E-15 2.5875E-13 7.6712E-15 -7.9642E-15 7.3803E-14 -1.9958E-14 4.5823E-16 -3.5170E-14 -6.5754E-15 6.9153E-15 -1.9958E-14 7.3360E-15 -8.4382E-16 3.0851E-14 -1.1841E-14 2.5488E-15 4.5823E-16 -8.4382E-16 4.8796E-14 -2.3100E-14 -2.4766E-13 2.5875E-13 -3.5170E-14 3.0851E-14 -2.3100E-14 1.1484E-12 # lat0 lon0 xBary yBary zBary JD0 -4.327153 18.056056 -0.070483 -0.074828 -0.989276 2456215.845188 # Heliocentric elements and errors Epoch: 2456216.5000 = 2012/10/16 Mean Anomaly: 14.37993 +/- 0.006 Argument of Peri: 302.77127 +/- 0.009 Long of Asc Node: 55.51237 +/- 0.000 Inclination: 6.88005 +/- 0.000 Eccentricity: 0.15326396 +/- 0.0000 Semi-Major Axis: 35.10607154 +/- 0.0013 Time of Perihelion: 2453181.7275 +/- 1.3 Perihelion: 29.72557613 +/- 0.0015 Aphelion: 40.48656695 +/- 0.0018 Period (y) 208.0087 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.38500461 +/- 0.0002 Ecliptic Y 9.33005000 +/- 0.0001 Ecliptic Z -2.18555717 +/- 0.0000 Ecliptic XDOT -0.00087892 +/- 0.0000 Ecliptic YDOT 0.00323387 +/- 0.0000 Ecliptic ZDOT 0.00030835 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 29.95886287 +/- 0.0002 Geocenter to KBO 28.96706325 +/- 0.0002 # Hcoef: 8.15
The following table shows the complete astrometric record for 15SV20. 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 (15SV20) followed by the observatory code and reference code for the source of the astrometry.
2012 10 15.34441 01 13 12.495 +03 04 44.50 23.3G 15SV20 F51 C~36rI 2012 10 15.36253 01 13 12.388 +03 04 44.08 23.1G 15SV20 F51 C~36rI 2012 10 15.37710 01 13 12.308 +03 04 43.41 22.9G 15SV20 F51 C~36rI 2012 10 15.39174 01 13 12.198 +03 04 42.69 23.0G 15SV20 F51 C~36rI 2012 11 05.28682 01 11 08.459 +02 53 50.66 22.9G 15SV20 F51 C~36rI 2012 11 05.30197 01 11 08.376 +02 53 50.10 22.7G 15SV20 F51 C~36rI 2012 11 05.31703 01 11 08.328 +02 53 50.01 22.9G 15SV20 F51 C~36rI 2012 11 05.33216 01 11 08.238 +02 53 49.66 22.7G 15SV20 F51 C~36rI 2012 12 27.27335 01 08 22.096 +02 45 19.69 22.4G 15SV20 F51 C~36rI 2012 12 27.28416 01 08 22.115 +02 45 20.12 21.9G 15SV20 F51 C~36rI 2013 10 27.33335 01 20 36.821 +04 05 45.13 22.9G 15SV20 F51 C~36rI 2013 10 27.34883 01 20 36.738 +04 05 44.69 22.3G 15SV20 F51 C~36rI 2014 08 18.61350 01 35 03.961 +05 47 51.95 22.5G 15SV20 F51 C~36rI 2014 08 19.59782 01 35 01.559 +05 47 33.16 23.4G 15SV20 F51 C~36rI 2014 08 25.54361 01 34 44.988 +05 45 30.36 23.5G 15SV20 F51 C~36rI 2014 08 25.55725 01 34 44.938 +05 45 30.14 23.2G 15SV20 F51 C~36rI 2014 08 25.57096 01 34 44.901 +05 45 29.85 22.6G 15SV20 F51 C~36rI 2014 08 25.58469 01 34 44.843 +05 45 29.97 22.6G 15SV20 F51 C~36rI 2014 08 26.56229 01 34 41.785 +05 45 07.23 23.1G 15SV20 F51 C~36rI 2014 08 26.57852 01 34 41.694 +05 45 06.62 22.9G 15SV20 F51 C~36rI 2014 09 19.49153 01 32 58.440 +05 33 55.79 22.8G 15SV20 F51 C~36rI 2014 09 23.46262 01 32 37.017 +05 31 45.46 23.3G 15SV20 F51 C~36rI 2014 09 23.47500 01 32 36.945 +05 31 44.85 23.2G 15SV20 F51 C~36rI 2014 10 13.43042 01 30 38.723 +05 20 22.24 22.5G 15SV20 F51 C~36rI 2014 11 20.38465 01 26 58.346 +05 01 49.28 22.8G 15SV20 F51 C~36rI 2014 12 18.26247 01 25 19.789 +04 56 15.33 23.4G 15SV20 F51 C~36rI 2014 12 18.27459 01 25 19.774 +04 56 15.39 22.6G 15SV20 F51 C~36rI 2015 01 08.23394 01 25 04.840 +04 58 28.01 22.4G 15SV20 F51 C~36rI 2015 08 12.55681 01 43 41.123 +06 53 58.15 22.6G 15SV20 F51 C~36rI 2015 08 12.56793 01 43 41.097 +06 53 57.98 23.2G 15SV20 F51 C~36rI 2015 08 12.57911 01 43 41.110 +06 53 57.94 22.8G 15SV20 F51 C~36rI 2015 08 12.59035 01 43 41.063 +06 53 57.76 23.5G 15SV20 F51 C~36rI 2015 09 11.51593 01 42 10.446 +06 43 31.19 23.8G 15SV20 F51 C~36rI 2015 09 11.52758 01 42 10.370 +06 43 30.92 23.3G 15SV20 F51 C~36rI 2015 09 11.53913 01 42 10.334 +06 43 30.49 24.4G 15SV20 F51 C~36rI 2015 09 11.55050 01 42 10.283 +06 43 30.43 22.8G 15SV20 F51 C~36rI 2015 09 12.48762 01 42 06.022 +06 43 03.78 22.7G 15SV20 F51 C~36rI 2015 09 12.49940 01 42 05.971 +06 43 03.43 22.9G 15SV20 F51 C~36rI 2015 09 12.51118 01 42 05.919 +06 43 03.03 23.2G 15SV20 F51 C~36rI 2015 09 12.52296 01 42 05.853 +06 43 02.69 22.7G 15SV20 F51 C~36rJ 2015 09 20.16928 01 41 28.47 +06 39 15.0 21.9R 15SV20 Z79 C~1cJL 2015 09 20.17332 01 41 28.46 +06 39 14.9 22.0R 15SV20 Z79 C~1cJL 2015 09 21.08297 01 41 23.74 +06 38 46.9 22.1R 15SV20 Z79 C~1cJL 2015 09 21.08700 01 41 23.71 +06 38 46.6 22.2R 15SV20 Z79 C~1cJL 2015 09 21.09104 01 41 23.69 +06 38 46.6 22.1R 15SV20 Z79 C~1cJL 2015 09 21.93374 01 41 19.31 +06 38 20.4 21.8R 15SV20 Z79 C~1cJL 2015 09 21.99181 01 41 19.00 +06 38 18.7 22.2R 15SV20 Z79 C~1cJL 2015 09 21.99583 01 41 18.97 +06 38 18.4 22.1R 15SV20 Z79 C~1cJL 2015 09 22.04602 01 41 18.69 +06 38 16.9 22.1R 15SV20 Z79 C~1cJL 2015 09 22.05006 01 41 18.68 +06 38 16.6 22.2R 15SV20 Z79 C~1cJL 2015 09 22.05410 01 41 18.65 +06 38 16.6 22.1R 15SV20 Z79 C~1cJL 2015 11 03.33858 01 37 05.181 +06 15 11.81 24.0G 15SV20 F51 C~36rJ 2015 11 03.35171 01 37 05.103 +06 15 11.06 23.1G 15SV20 F51 C~36rJ 2015 11 05.87749 01 36 50.07 +06 13 56.9 22.4V 15SV20 Z79 C~1deh 2015 11 05.88530 01 36 50.03 +06 13 56.9 22.6V 15SV20 Z79 C~1deh 2015 11 05.88606 01 36 50.03 +06 13 56.7 22.6V 15SV20 Z79 C~1deh 2015 11 05.88892 01 36 50.00 +06 13 56.8 22.6V 15SV20 Z79 C~1deh 2015 11 05.89253 01 36 50.00 +06 13 56.3 22.6V 15SV20 Z79 C~1deh 2015 11 07.05863 01 36 43.15 +06 13 23.1 22.2V 15SV20 Z79 C~1deh 2015 11 07.06225 01 36 43.11 +06 13 23.0 22.2V 15SV20 Z79 C~1deh 2015 11 07.06405 01 36 43.12 +06 13 23.1 22.4V 15SV20 Z79 C~1deh 2015 11 07.06586 01 36 43.10 +06 13 23.0 22.3V 15SV20 Z79 C~1deh 2015 11 07.06947 01 36 43.08 +06 13 22.7 22.2V 15SV20 Z79 C~1deh 2015 12 07.26053 01 34 16.761 +06 02 48.03 21.9G 15SV20 F51 C~36rJ 2015 12 07.27246 01 34 16.708 +06 02 47.68 22.8G 15SV20 F51 C~36rJ 2015 12 07.28441 01 34 16.642 +06 02 47.88 22.1G 15SV20 F51 C~36rJ 2016 01 01.23706 01 33 23.766 +06 01 37.18 23.8G 15SV20 F51 C~36rJ 2016 01 01.24831 01 33 23.749 +06 01 37.45 22.6G 15SV20 F51 C~36rJ 2016 01 01.25950 01 33 23.736 +06 01 37.95 23.9G 15SV20 F51 C~36rJ 2016 01 01.27066 01 33 23.727 +06 01 37.38 23.3G 15SV20 F51 C~36rJ 2017 10 22.44884 01 55 20.745 +08 30 23.88 23.2G 15SV20 F51 C~36rJ 2017 10 22.46051 01 55 20.650 +08 30 23.20 23.0G 15SV20 F51 C~36rJ 2017 10 22.47210 01 55 20.590 +08 30 23.14 22.7G 15SV20 F51 C~36rJ 2017 10 22.48377 01 55 20.524 +08 30 22.57 22.6G 15SV20 F51 C~36rJ 2017 11 10.29932 01 53 24.420 +08 20 52.18 22.9G 15SV20 F51 C~36rJ 2017 11 10.31184 01 53 24.371 +08 20 52.15 22.6G 15SV20 F51 C~36rJ 2018 02 04.23425 01 50 39.959 +08 17 03.84 22.8G 15SV20 F51 C~36rJ 2018 02 04.24584 01 50 39.972 +08 17 04.67 22.7G 15SV20 F51 C~36rJ 2018 02 04.25746 01 50 40.038 +08 17 05.12 22.7G 15SV20 F51 C~36rJ 2018 02 04.26910 01 50 40.091 +08 17 05.01 23.1G 15SV20 F51 C~36rJ 2019 01 01.22372 01 58 23.734 +09 10 39.02 22.9G 15SV20 F51 C~36rJ 2019 01 01.23510 01 58 23.733 +09 10 38.86 23.1G 15SV20 F51 C~36rJ 2019 01 01.24647 01 58 23.702 +09 10 38.92 22.8G 15SV20 F51 C~36rJ 2019 01 01.25782 01 58 23.698 +09 10 38.86 23.0G 15SV20 F51 C~36rJ 2019 01 03.27750 01 58 21.087 +09 10 41.64 23.7G 15SV20 F51 C~36rJ 2019 01 03.29085 01 58 21.042 +09 10 41.42 23.9G 15SV20 F51 C~36rJ 2019 01 03.30423 01 58 21.083 +09 10 42.03 22.7G 15SV20 F51 C~36rJ
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 -0.17 0.00 0.04
2 0.0000 0.00 -0.06 0.00 0.24
3 0.0001 0.00 0.11 0.00 0.07
4 0.0001 0.00 -0.16 0.00 -0.14
5 0.0573 0.00 -0.23 0.00 -0.07
6 0.0574 0.00 -0.20 0.00 -0.23
7 0.0574 0.00 0.35 0.00 0.09
8 0.0575 0.00 0.27 0.00 0.15
9 0.1997 0.00 -0.26 0.00 -0.16
10 0.1997 0.00 0.08 0.00 0.16
11 1.0321 0.00 0.68 0.00 -0.22
12 1.0322 0.00 0.86 0.00 -0.18
13 1.8406 0.00 0.09 0.00 0.04
14 1.8433 0.00 -0.33 0.00 -0.31
15 1.8595 0.00 0.12 0.00 -0.07
16 1.8596 0.00 0.03 0.00 0.02
17 1.8596 0.00 0.14 0.00 0.03
18 1.8597 0.00 -0.06 0.00 0.46
19 1.8623 0.00 0.48 0.00 -0.19
20 1.8624 0.00 -0.07 0.00 -0.43
21 1.9278 0.00 -0.12 0.00 0.02
22 1.9387 0.00 -0.43 0.00 -0.39
23 1.9388 0.00 -0.46 0.00 -0.59
24 1.9934 0.00 -0.20 0.00 -0.57
25 2.0973 0.00 -0.04 0.00 0.15
26 2.1736 0.00 -0.66 0.00 -0.57
27 2.1737 0.00 -0.50 0.00 -0.48
28 2.2310 0.00 -0.45 0.00 -0.30
29 2.8233 0.00 -0.03 0.00 -0.07
30 2.8233 0.00 -0.17 0.00 -0.10
31 2.8234 0.00 0.27 0.00 0.00
32 2.8234 0.00 -0.18 0.00 -0.04
33 2.9053 0.00 0.14 0.00 -0.07
34 2.9054 0.00 -0.19 0.00 -0.01
35 2.9054 0.00 0.07 0.00 -0.12
36 2.9054 0.00 0.09 0.00 0.14
37 2.9080 0.00 -0.05 0.00 -0.01
38 2.9080 0.00 0.02 0.00 -0.03
39 2.9081 0.00 0.07 0.00 -0.09
40 2.9081 0.00 -0.09 0.00 -0.10
41 2.9290 0.00 -0.33 0.00 -0.16
42 2.9290 0.00 -0.17 0.00 -0.13
43 2.9315 0.00 -0.18 0.00 0.12
44 2.9315 0.00 -0.31 0.00 -0.06
45 2.9315 0.00 -0.29 0.00 0.07
46 2.9339 0.00 0.23 0.00 0.25
47 2.9340 0.00 0.25 0.00 0.37
48 2.9340 0.00 0.13 0.00 0.20
49 2.9342 0.00 -0.02 0.00 0.27
50 2.9342 0.00 0.16 0.00 0.10
51 2.9342 0.00 0.03 0.00 0.22
52 3.0499 0.00 0.06 0.00 0.20
53 3.0500 0.00 0.09 0.00 -0.16
54 3.0569 0.00 -0.26 0.00 0.16
55 3.0569 0.00 -0.15 0.00 0.39
56 3.0569 0.00 -0.09 0.00 0.21
57 3.0569 0.00 -0.28 0.00 0.39
58 3.0569 0.00 0.05 0.00 -0.00
59 3.0601 0.00 0.23 0.00 0.37
60 3.0601 0.00 -0.05 0.00 0.38
61 3.0601 0.00 0.26 0.00 0.53
62 3.0602 0.00 0.12 0.00 0.48
63 3.0602 0.00 0.14 0.00 0.28
64 3.1428 0.00 0.31 0.00 0.13
65 3.1429 0.00 0.17 0.00 -0.08
66 3.1429 0.00 -0.17 0.00 0.26
67 3.2112 0.00 0.22 0.00 -0.17
68 3.2112 0.00 0.08 0.00 0.02
69 3.2113 0.00 0.01 0.00 0.45
70 3.2113 0.00 -0.01 0.00 -0.20
71 5.0188 0.00 0.22 0.00 -0.05
72 5.0188 0.00 -0.08 0.00 -0.35
73 5.0188 0.00 0.13 0.00 -0.04
74 5.0189 0.00 0.26 0.00 -0.24
75 5.0704 0.00 -0.32 0.00 -0.32
76 5.0704 0.00 0.08 0.00 -0.00
77 5.3057 0.00 0.02 0.00 -0.27
78 5.3057 0.00 -0.33 0.00 0.25
79 5.3057 0.00 0.11 0.00 0.39
80 5.3057 0.00 0.35 0.00 -0.03
81 6.2119 0.00 -0.12 0.00 0.00
82 6.2119 0.00 0.13 0.00 -0.17
83 6.2119 0.00 -0.08 0.00 -0.11
84 6.2119 0.00 0.12 0.00 -0.18
85 6.2175 0.00 -0.04 0.00 -0.11
86 6.2175 0.00 -0.46 0.00 -0.35
87 6.2175 0.00 0.41 0.00 0.23
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.
15SV20 quality flag:3 Type: 5:4E 5:4E 5:4E axisobj 35.198 35.198 35.198 ecceobj 0.156 0.156 0.156 incobj 6.881 6.881 6.881 qmin 27.539 27.533 27.545 qmax 42.735 42.749 42.723 amean 34.940 34.940 34.940 amin 34.654 34.653 34.654 amax 35.286 35.286 35.286 emean 0.156 0.156 0.156 emin 0.114 0.114 0.114 emax 0.212 0.212 0.212 imean 7.701 7.701 7.701 imin 5.034 5.034 5.035 imax 11.303 11.303 11.305 excite_mean 0.207 0.207 0.207 fracstop 1.000 1.000 1.000 cjmean 2.967 2.967 2.967 libcent 0 180.8 180.9 180.9 libamp 0 41.8 41.8 41.9 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 195.9 195.8 196.0 kozaiamp 180.0 180.0 180.0