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: 49036 # Created Sun Dec 22 02:06:46 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 101 observations of 101 # Arc: 19.11y # First observation: 1998/08/21 # Last observation: 2017/09/29 # Chi-squared of fit: 206.52 DOF: 196 RMS: 0.25 # Min/Max residuals: -0.84 0.77 # Exact a, adot, b, bdot, g, gdot: 2.582924E-05 9.428176E-02 -3.017345E-06 -1.553023E-02 6.018926E-02 4.088237E-03 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -0.678817 -49.988288 -0.311575 -0.011533 -0.954104 2451047.013771 # Heliocentric elements and errors Epoch: 2451046.5000 = 1998/08/21 Mean Anomaly: 21.29094 +/- 0.000 Argument of Peri: 155.71657 +/- 0.000 Long of Asc Node: 127.15122 +/- 0.000 Inclination: 9.36239 +/- 0.000 Eccentricity: 0.14001772 +/- 0.0000 Semi-Major Axis: 20.14107740 +/- 0.0000 Time of Perihelion: 2449093.8933 +/- 0.0 Perihelion: 17.32096958 +/- 0.0000 Aphelion: 22.96118521 +/- 0.0000 Period (y) 90.3925 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 11.54213148 +/- 0.0000 Ecliptic Y -13.25589948 +/- 0.0000 Ecliptic Z -0.19687331 +/- 0.0000 Ecliptic XDOT 0.00339936 +/- 0.0000 Ecliptic YDOT 0.00263042 +/- 0.0000 Ecliptic ZDOT -0.00070863 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 17.57775784 +/- 0.0000 Geocenter to KBO 16.61426936 +/- 0.0000 # Hcoef: 10.29
The following table shows the complete astrometric record for 49036. 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 (49036) followed by the observatory code and reference code for the source of the astrometry.
1998 08 21.51304 20 50 35.75 -18 23 30.0 49036 568 Ca3023 1998 08 22.46561 20 50 26.56 -18 24 15.3 49036 568 Ca3023 1998 08 22.51999 20 50 25.98 -18 24 17.3 49036 568 Ca3023 1998 08 27.40850 20 49 39.80 -18 28 00.1 49036 568 Ca3023 1998 08 27.43545 20 49 39.55 -18 28 01.0 23.0R 49036 568 Ca3023 1998 08 27.46193 20 49 39.30 -18 28 02.5 49036 568 Ca3023 1998 08 27.48792 20 49 39.07 -18 28 03.4 49036 568 Ca3023 1998 09 23.30315 20 46 22.80 -18 44 10.8 49036 568 Ca3023 1998 09 23.33616 20 46 22.65 -18 44 11.3 23.1V 49036 568 Ca3023 1998 09 23.36797 20 46 22.50 -18 44 11.9 49036 568 Ca3023 1998 09 23.43834 20 46 22.12 -18 44 13.6 49036 568 Ca3023 1998 09 24.24512 20 46 18.19 -18 44 34.7 49036 568 Ca3023 1998 09 24.28480 20 46 17.99 -18 44 36.0 49036 568 Ca3023 1998 09 24.33354 20 46 17.74 -18 44 37.1 49036 568 Ca3023 1998 09 24.36363 20 46 17.58 -18 44 37.9 49036 568 Ca3023 1998 09 25.23594 20 46 13.47 -18 44 59.8 49036 568 Ca3023 1998 09 25.25084 20 46 13.41 -18 45 00.2 49036 568 Ca3023 1998 09 25.26586 20 46 13.32 -18 45 00.5 49036 568 Ca3023 1998 09 25.37063 20 46 12.80 -18 45 03.1 49036 568 Ca3023 1998 09 28.28043 20 46 00.23 -18 46 11.1 49036 568 Ca3023 1998 09 28.31962 20 46 00.07 -18 46 12.0 22.9R 49036 568 Ca3023 1998 10 15.10089 20 45 23.12 -18 50 19.5 22.8R 49036 695 Ca3023 1998 10 15.10758 20 45 23.12 -18 50 19.5 22.9R 49036 695 Ca3023 1998 10 16.12465 20 45 22.91 -18 50 26.3 23.0R 49036 695 Ca3023 1998 10 16.13144 20 45 22.92 -18 50 26.4 23.2R 49036 695 Ca3023 1998 10 16.15561 20 45 22.90 -18 50 26.6 22.9R 49036 695 Ca3023 1998 10 23.21953 20 45 28.20 -18 50 47.4 22.6R 49036 568 Ca3023 1998 10 23.33865 20 45 28.37 -18 50 47.4 22.6R 49036 568 Ca3023 1998 11 28.19645 20 48 52.49 -18 40 52.3 49036 568 Ca3023 1998 11 28.20635 20 48 52.60 -18 40 52.1 49036 568 Ca3023 1998 11 28.21936 20 48 52.72 -18 40 51.6 49036 568 Ca3023 1998 11 28.22755 20 48 52.80 -18 40 51.3 49036 568 Ca3023 1999 05 06.58179 21 22 59.96 -16 37 58.6 22.7 49036 568 Ca5542 1999 05 06.60703 21 23 00.07 -16 37 58.5 23.1 49036 568 Ca5542 1999 05 06.61707 21 23 00.11 -16 37 58.5 23.6 49036 568 Ca5542 1999 07 08.48344 21 20 32.36 -17 02 54.4 22.1V 49036 568 Ca5542 1999 07 08.51860 21 20 32.07 -17 02 56.2 22.8V 49036 568 Ca5542 1999 07 11.52245 21 20 07.21 -17 05 25.9 49036 568 Ca5542 1999 07 11.53951 21 20 07.07 -17 05 26.8 49036 568 Ca5542 1999 07 12.56116 21 19 58.36 -17 06 18.3 49036 568 Ca5542 1999 07 12.61316 21 19 57.89 -17 06 21.1 49036 568 Ca5542 2000 07 29.41752 21 39 25.02 -16 30 52.4 22.7R 49036 568 Cd0721 2000 07 29.45828 21 39 24.63 -16 30 54.9 22.9R 49036 568 Cd0721 2000 07 29.47279 21 39 24.50 -16 30 55.7 22.7R 49036 568 Cd0721 2000 07 29.48434 21 39 24.39 -16 30 56.7 22.4R 49036 568 Cd0721 2000 07 29.49608 21 39 24.27 -16 30 57.2 22.7R 49036 568 Cd0721 2000 07 29.50748 21 39 24.18 -16 30 57.7 22.6R 49036 568 Cd0721 2000 07 30.39509 21 39 15.65 -16 31 50.0 22.2R 49036 568 Cd0721 2000 07 30.48815 21 39 14.72 -16 31 55.2 22.3R 49036 568 Cd0721 2000 08 27.03230 21 34 39.46 -16 58 24.8 22.3R 49036 807 Cc0750 2000 08 27.10006 21 34 38.78 -16 58 28.4 49036 807 Cc0750 2000 09 04.99887 21 33 14.36 -17 06 09.1 49036 309 Cc7432 2000 09 05.01077 21 33 14.26 -17 06 09.5 49036 309 Cc7432 2000 09 05.01560 21 33 14.24 -17 06 09.0 49036 309 Cc7432 2000 09 05.02036 21 33 14.15 -17 06 10.0 49036 309 Cc7432 2001 07 16.42810 22 02 52.38 -15 19 16.5 23.0R 49036 568 Cd4030 2001 07 17.52596 22 02 44.10 -15 20 17.2 22.8R 49036 568 Cd4030 2001 07 17.54347 22 02 43.96 -15 20 17.8 22.9R 49036 568 Cd4030 2002 06 20.55281 22 25 36.57 -13 54 48.8 22.5R 49036 568 Cg5342 2002 06 20.56544 22 25 36.53 -13 54 49.0 23.0R 49036 568 Cg5342 2002 09 16.44516 22 14 28.19 -15 15 54.4 22.9R 49036 568 Cg5342 2002 09 16.45425 22 14 28.08 -15 15 55.0 22.6R 49036 568 Cg5342 2005 09 02.41522 23 16 44.42 -11 20 21.7 22.3R 49036 250 S~06FA 2005 09 02.42193 23 16 44.35 -11 20 22.2 49036 250 S~06FA 2005 09 02.42865 23 16 44.29 -11 20 22.6 49036 250 S~06FA 2012 11 05.292984 01 09 42.515 -02 30 53.52 22.7G 49036 F51 C~41i2 2012 11 05.308080 01 09 42.397 -02 30 53.79 23.0G 49036 F51 C~41i2 2012 11 05.323156 01 09 42.249 -02 30 54.77 22.5G 49036 F51 C~41i2 2012 11 05.338290 01 09 42.145 -02 30 55.36 22.8G 49036 F51 C~41i2 2013 09 10.380220 01 33 19.43 -00 17 09.0 49036 W84 C~3o1c 2013 09 10.381609 01 33 19.40 -00 17 08.9 49036 W84 C~3o1c 2013 10 05.349606 01 30 04.45 -00 42 03.8 49036 W84 C~3o1c 2013 10 05.352269 01 30 04.43 -00 42 03.8 49036 W84 C~3o1c 2013 10 05.356262 01 30 04.38 -00 42 04.0 49036 W84 C~3o1c 2013 10 05.361586 01 30 04.32 -00 42 04.4 49036 W84 C~3o1c 2013 10 05.364236 01 30 04.31 -00 42 04.6 49036 W84 C~3o1c 2013 10 05.366898 01 30 04.29 -00 42 04.5 49036 W84 C~3o1c 2013 10 07.333067 01 29 47.06 -00 43 59.7 49036 W84 C~3o1c 2013 10 07.335718 01 29 47.06 -00 43 59.6 49036 W84 C~3o1c 2013 10 07.338403 01 29 47.03 -00 43 59.8 49036 W84 C~3o1c 2013 10 07.346331 01 29 46.94 -00 44 00.6 49036 W84 C~3o1c 2013 10 07.349005 01 29 46.92 -00 44 00.8 49036 W84 C~3o1c 2013 10 09.331389 01 29 29.43 -00 45 55.3 49036 W84 C~3o1c 2013 10 09.334039 01 29 29.41 -00 45 55.3 49036 W84 C~3o1c 2013 10 25.305396 01 27 06.931 -01 00 05.61 22.7G 49036 F51 C~41i2 2013 10 25.319943 01 27 06.804 -01 00 06.52 24.1G 49036 F51 C~41i2 2013 10 25.334526 01 27 06.668 -01 00 07.18 23.0G 49036 F51 C~41i2 2013 10 25.349123 01 27 06.545 -01 00 07.86 23.2G 49036 F51 C~41i2 2014 08 25.588241 01 49 59.464 +01 17 09.95 23.0G 49036 F51 C~41i2 2014 08 27.585380 01 49 51.855 +01 15 34.37 23.4G 49036 F51 C~41i2 2015 11 03.327653 01 56 36.532 +01 34 29.74 23.0G 49036 F51 C~41i2 2015 12 29.135046 01 50 57.40 +01 20 34.5 49036 W84 C~3o1c 2015 12 29.136424 01 50 57.41 +01 20 34.7 49036 W84 C~3o1c 2016 01 08.125891 01 50 47.26 +01 24 25.2 49036 W84 C~3o1c 2016 01 08.127269 01 50 47.27 +01 24 24.8 49036 W84 C~3o1c 2017 08 01.613288 02 33 38.462 +05 12 47.77 23.7G 49036 F51 C~41i2 2017 09 26.495894 02 31 25.970 +04 38 16.90 23.0G 49036 F51 C~41i2 2017 09 26.509625 02 31 25.867 +04 38 16.58 22.7G 49036 F51 C~41i2 2017 09 26.523194 02 31 25.766 +04 38 15.96 23.2G 49036 F51 C~41i2 2017 09 26.536855 02 31 25.670 +04 38 15.24 23.3G 49036 F51 C~41i2 2017 09 29.603046 02 31 04.471 +04 35 38.36 23.1G 49036 F51 C~41i2
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 -0.16 0.00 -0.27
2 0.0026 0.00 0.71 0.00 -0.84
3 0.0028 0.00 0.04 0.00 -0.34
4 0.0161 0.00 -0.31 0.00 -0.17
5 0.0162 0.00 -0.26 0.00 0.12
6 0.0163 0.00 -0.28 0.00 -0.22
7 0.0164 0.00 -0.08 0.00 0.02
8 0.0898 0.00 -0.54 0.00 -0.40
9 0.0899 0.00 -0.19 0.00 -0.04
10 0.0900 0.00 0.06 0.00 0.19
11 0.0901 0.00 -0.16 0.00 0.29
12 0.0924 0.00 0.05 0.00 0.12
13 0.0925 0.00 0.06 0.00 -0.16
14 0.0926 0.00 0.01 0.00 -0.02
15 0.0927 0.00 -0.12 0.00 -0.07
16 0.0951 0.00 -0.10 0.00 -0.08
17 0.0951 0.00 0.09 0.00 -0.11
18 0.0951 0.00 -0.17 0.00 -0.03
19 0.0954 0.00 -0.35 0.00 -0.07
20 0.1034 0.00 -0.14 0.00 0.01
21 0.1035 0.00 -0.05 0.00 -0.03
22 0.1495 0.00 -0.02 0.00 0.17
23 0.1495 0.00 0.03 0.00 0.22
24 0.1523 0.00 -0.00 0.00 0.25
25 0.1523 0.00 0.17 0.00 0.19
26 0.1523 0.00 -0.03 0.00 0.14
27 0.1717 0.00 -0.16 0.00 0.07
28 0.1720 0.00 -0.13 0.00 -0.02
29 0.2702 0.00 -0.14 0.00 -0.39
30 0.2702 0.00 0.12 0.00 -0.51
31 0.2702 0.00 0.09 0.00 -0.43
32 0.2703 0.00 0.13 0.00 -0.40
33 0.7066 0.00 0.16 0.00 0.36
34 0.7066 0.00 0.25 0.00 0.30
35 0.7067 0.00 0.24 0.00 0.24
36 0.8788 0.00 0.11 0.00 0.28
37 0.8789 0.00 0.14 0.00 0.21
38 0.8871 0.00 0.41 0.00 -0.08
39 0.8871 0.00 0.54 0.00 -0.12
40 0.8899 0.00 0.77 0.00 0.17
41 0.8901 0.00 0.58 0.00 -0.00
42 1.9381 0.00 -0.40 0.00 0.23
43 1.9382 0.00 -0.26 0.00 0.13
44 1.9383 0.00 -0.08 0.00 0.18
45 1.9383 0.00 -0.03 0.00 -0.15
46 1.9384 0.00 -0.11 0.00 0.04
47 1.9384 0.00 0.22 0.00 0.20
48 1.9408 0.00 -0.08 0.00 -0.12
49 1.9411 0.00 -0.27 0.00 0.15
50 2.0165 0.00 0.38 0.00 0.38
51 2.0167 0.00 0.30 0.00 0.47
52 2.0410 0.00 -0.17 0.00 -0.31
53 2.0411 0.00 -0.02 0.00 -0.12
54 2.0411 0.00 0.35 0.00 0.62
55 2.0411 0.00 -0.34 0.00 -0.14
56 2.9019 0.00 -0.11 0.00 -0.12
57 2.9049 0.00 0.19 0.00 -0.10
58 2.9049 0.00 0.15 0.00 0.27
59 3.8304 0.00 0.05 0.00 -0.50
60 3.8304 0.00 -0.15 0.00 -0.30
61 4.0710 0.00 -0.18 0.00 -0.37
62 4.0710 0.00 -0.60 0.00 -0.52
63 7.0333 0.00 -0.13 0.00 0.67
64 7.0333 0.00 -0.25 0.00 0.62
65 7.0333 0.00 -0.21 0.00 0.67
66 14.2088 0.00 0.31 0.00 -0.17
67 14.2089 0.00 0.37 0.00 0.11
68 14.2089 0.00 -0.03 0.00 -0.32
69 14.2090 0.00 0.24 0.00 -0.37
70 15.0551 0.00 0.26 0.00 -0.03
71 15.0551 0.00 -0.05 0.00 0.15
72 15.1234 0.00 0.03 0.00 -0.07
73 15.1234 0.00 0.09 0.00 0.09
74 15.1235 0.00 -0.14 0.00 0.12
75 15.1235 0.00 -0.33 0.00 0.03
76 15.1235 0.00 -0.13 0.00 -0.01
77 15.1235 0.00 -0.08 0.00 0.25
78 15.1289 0.00 -0.18 0.00 -0.05
79 15.1289 0.00 0.18 0.00 0.21
80 15.1289 0.00 0.08 0.00 0.16
81 15.1289 0.00 -0.20 0.00 -0.18
82 15.1289 0.00 -0.15 0.00 -0.22
83 15.1343 0.00 0.13 0.00 -0.24
84 15.1343 0.00 0.18 0.00 -0.09
85 15.1781 0.00 0.22 0.00 0.10
86 15.1781 0.00 0.27 0.00 -0.11
87 15.1782 0.00 0.20 0.00 -0.07
88 15.1782 0.00 0.32 0.00 -0.05
89 16.0112 0.00 0.12 0.00 -0.05
90 16.0166 0.00 0.14 0.00 -0.09
91 17.2014 0.00 0.07 0.00 0.20
92 17.3542 0.00 -0.10 0.00 -0.28
93 17.3542 0.00 0.09 0.00 -0.10
94 17.3816 0.00 -0.13 0.00 0.10
95 17.3816 0.00 0.02 0.00 -0.34
96 18.9462 0.00 -0.30 0.00 -0.18
97 19.0992 0.00 0.08 0.00 -0.18
98 19.0992 0.00 -0.04 0.00 0.20
99 19.0993 0.00 -0.15 0.00 0.27
100 19.0993 0.00 -0.18 0.00 0.25
101 19.1077 0.00 -0.13 0.00 -0.05
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.
49036 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 20.076 20.076 20.076 ecceobj 0.137 0.137 0.137 incobj 9.371 9.371 9.371 qmin 16.749 16.037 15.264 qmax 23.814 23.760 24.773 amean 20.019 19.840 19.940 amin 18.712 19.451 19.402 amax 20.549 20.757 20.755 emean 0.139 0.127 0.129 emin 0.026 0.032 0.031 emax 0.171 0.191 0.236 imean 9.336 10.653 10.138 imin 7.842 7.842 7.074 imax 12.523 12.706 12.659 excite_mean 0.218 0.226 0.222 fracstop 0.008 0.098 0.106 cjmean 3.095 3.099 3.097 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 201.8 182.9 182.0 kozaiamp 95.3 56.7 86.6