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: 801004
# Created Mon Jul 7 01:07:50 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 105 observations of 105
# Arc: 13.09y
# First observation: 2010/08/02
# Last observation: 2023/09/06
# Chi-squared of fit: 104.81 DOF: 204 RMS: 0.18
# Min/Max residuals: -0.88 0.65
# Exact a, adot, b, bdot, g, gdot:
1.909026E-05 3.470942E-02 1.768130E-06 9.915622E-03 3.043360E-02 1.499997E-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
2.280405 -44.690943 0.097699 0.039982 -1.005382 2455410.929856
# Heliocentric elements and errors
Epoch: 2455410.5000 = 2010/08/02
Mean Anomaly: 7.63458 +/- 0.000
Argument of Peri: 355.92291 +/- 0.000
Long of Asc Node: 307.44340 +/- 0.000
Inclination: 16.07676 +/- 0.000
Eccentricity: 0.21574280 +/- 0.0000
Semi-Major Axis: 43.01491603 +/- 0.0000
Time of Perihelion: 2453225.2058 +/- 0.0
Perihelion: 33.73475758 +/- 0.0000
Aphelion: 52.29507448 +/- 0.0000
Period (y) 282.1219 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 23.99209631 +/- 0.0000
Ecliptic Y -23.86874111 +/- 0.0000
Ecliptic Z 1.30753621 +/- 0.0000
Ecliptic XDOT 0.00226759 +/- 0.0000
Ecliptic YDOT 0.00215619 +/- 0.0000
Ecliptic ZDOT 0.00089666 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 33.86806142 +/- 0.0000
Geocenter to KBO 32.85842319 +/- 0.0000
# Hcoef: 7.15
The following table shows the complete astrometric record for 801004. 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 (801004) followed by the observatory code and reference code for the source of the astrometry.
2010 08 02.42909 21 08 19.122 -14 03 53.77 22.6G 801004 F51 C~2rY8 2010 08 05.48533 21 08 01.390 -14 04 54.40 22.7G 801004 F51 C~2rY8 2010 08 06.48134 21 07 55.582 -14 05 14.27 22.5G 801004 F51 C~2rY8 2010 08 31.40442 21 05 35.406 -14 13 27.71 22.2G 801004 F51 C~2rY8 2010 09 05.29418 21 05 10.550 -14 14 57.17 21.9G 801004 F51 C~2rY8 2011 06 07.59591 21 19 30.105 -12 45 30.83 22.7G 801004 F51 C~2rY8 2011 06 07.60683 21 19 30.077 -12 45 31.00 22.3G 801004 F51 C~2rY8 2011 07 22.45727 21 16 29.685 -12 52 39.81 23.1G 801004 F51 C~2rY8 2011 07 25.44693 21 16 13.238 -12 53 33.22 22.4w 801004 F51 C~1vXd 2011 07 25.46222 21 16 13.155 -12 53 33.41 22.5w 801004 F51 C~1vXd 2011 07 25.47740 21 16 13.054 -12 53 33.91 22.2w 801004 F51 C~1vXd 2011 07 25.49263 21 16 12.959 -12 53 34.07 22.3w 801004 F51 C~1vXd 2011 08 17.37780 21 14 02.068 -13 01 13.66 22.6G 801004 F51 C~2rY8 2013 06 19.57061 21 32 42.201 -10 30 14.54 22.6G 801004 F51 C~2rY8 2013 07 15.46946 21 30 58.515 -10 34 13.08 22.6w 801004 F51 C~1vXd 2013 07 15.49810 21 30 58.386 -10 34 13.83 22.5w 801004 F51 C~1vXd 2013 07 15.51240 21 30 58.303 -10 34 14.23 22.5w 801004 F51 C~1vXd 2013 08 27.38065 21 27 02.796 -10 48 41.94 22.1G 801004 F51 C~2rY8 2013 08 30.33525 21 26 46.777 -10 49 49.05 23.0G 801004 F51 C~2rY8 2013 08 30.33591 21 26 46.774 -10 49 49.17 22.3G 801004 F51 C~2rY8 2013 08 30.34927 21 26 46.696 -10 49 49.37 22.2G 801004 F51 C~2rY8 2013 08 30.34993 21 26 46.697 -10 49 49.45 22.5G 801004 F51 C~2rY8 2013 08 30.36329 21 26 46.624 -10 49 49.68 22.3G 801004 F51 C~2rY8 2013 08 30.36395 21 26 46.615 -10 49 49.59 22.5G 801004 F51 C~2rY8 2013 08 30.37731 21 26 46.540 -10 49 50.09 21.8G 801004 F51 C~2rY8 2013 08 30.37797 21 26 46.538 -10 49 50.02 22.7G 801004 F51 C~2rY8 2014 06 29.49618 21 38 56.140 -09 22 42.56 22.4G 801004 F51 C~2rY8 2014 06 29.50844 21 38 56.112 -09 22 42.69 22.1G 801004 F51 C~2rY8 2014 06 29.52073 21 38 56.053 -09 22 42.75 22.1G 801004 F51 C~2rY8 2014 07 07.53027 21 38 24.521 -09 23 52.09 22.1w 801004 F51 C~1vXd 2014 07 07.54208 21 38 24.487 -09 23 52.23 22.0w 801004 F51 C~1vXd 2014 07 07.56574 21 38 24.367 -09 23 52.52 22.2w 801004 F51 C~1vXd 2014 07 28.53091 21 36 42.425 -09 29 06.11 22.7G 801004 F51 C~2rY8 2014 08 14.49541 21 35 08.120 -09 35 01.65 22.4G 801004 F51 C~2rY8 2014 08 15.46132 21 35 02.706 -09 35 23.24 22.1G 801004 F51 C~2rY8 2014 08 15.47369 21 35 02.664 -09 35 23.45 23.3G 801004 F51 C~2rY8 2014 08 15.49845 21 35 02.494 -09 35 23.98 22.4G 801004 F51 C~2rY8 2014 08 26.39635 21 34 01.430 -09 39 37.77 22.2w 801004 F51 C~1vXd 2014 08 26.40827 21 34 01.348 -09 39 38.07 22.1w 801004 F51 C~1vXd 2014 08 26.42016 21 34 01.285 -09 39 38.39 22.2w 801004 F51 C~1vXd 2014 08 27.38773 21 33 55.964 -09 40 01.08 22.3w 801004 F51 C~1vXd 2014 08 27.40135 21 33 55.885 -09 40 01.36 22.5w 801004 F51 C~1vXd 2014 08 27.41496 21 33 55.823 -09 40 01.86 22.1w 801004 F51 C~1vXd 2014 08 27.42857 21 33 55.725 -09 40 02.27 22.2w 801004 F51 C~1vXd 2014 09 19.28344 21 32 01.310 -09 48 43.95 22.1w 801004 F51 C~1vXd 2014 09 19.29571 21 32 01.240 -09 48 43.87 22.4w 801004 F51 C~1vXd 2014 09 19.30798 21 32 01.203 -09 48 44.18 22.4w 801004 F51 C~1vXd 2014 09 19.32026 21 32 01.133 -09 48 44.57 22.4w 801004 F51 C~1vXd 2014 09 23.28095 21 31 44.419 -09 50 06.44 22.7G 801004 F51 C~2rY8 2014 12 10.20289 21 31 37.247 -09 53 48.41 23.5G 801004 F51 C~2rY8 2015 09 05.36744 21 39 56.418 -08 34 47.15 20.2G 801004 F51 C~2rY8 2015 09 06.38314 21 39 51.148 -08 35 11.58 22.3G 801004 F51 C~2rY8 2015 09 06.39436 21 39 51.091 -08 35 11.89 22.5G 801004 F51 C~2rY8 2015 09 06.40557 21 39 51.030 -08 35 12.11 22.4G 801004 F51 C~2rY8 2015 09 06.41677 21 39 50.968 -08 35 12.39 22.7G 801004 F51 C~2rY8 2015 10 09.29012 21 37 34.519 -08 46 56.43 22.6G 801004 F51 C~2rY8 2015 10 09.30179 21 37 34.488 -08 46 56.92 22.7G 801004 F51 C~2rY8 2015 10 09.31546 21 37 34.458 -08 46 57.10 22.6G 801004 F51 C~2rY8 2015 10 09.32713 21 37 34.409 -08 46 57.38 22.6G 801004 F51 C~2rY8 2015 10 10.28954 21 37 31.746 -08 47 13.22 22.1G 801004 F51 C~2rY8 2015 10 10.30050 21 37 31.720 -08 47 13.54 22.9G 801004 F51 C~2rY8 2015 10 10.31144 21 37 31.671 -08 47 13.60 22.7G 801004 F51 C~2rY8 2015 10 10.32241 21 37 31.630 -08 47 13.46 23.4G 801004 F51 C~2rY8 2016 05 12.60943 21 52 59.508 -07 13 34.55 23.0G 801004 F51 C~2rY8 2016 06 07.51868 21 53 04.155 -07 06 30.96 22.3G 801004 F51 C~2rY8 2016 06 07.53093 21 53 04.142 -07 06 31.10 22.1G 801004 F51 C~2rY8 2016 06 07.54321 21 53 04.107 -07 06 30.36 22.3G 801004 F51 C~2rY8 2016 06 07.55549 21 53 04.106 -07 06 30.42 22.5G 801004 F51 C~2rY8 2016 07 07.48924 21 51 44.449 -07 06 36.55 22.5G 801004 F51 C~2rY8 2016 07 07.50155 21 51 44.409 -07 06 36.49 22.5G 801004 F51 C~2rY8 2016 07 07.51390 21 51 44.351 -07 06 36.18 22.3G 801004 F51 C~2rY8 2016 07 07.52628 21 51 44.298 -07 06 36.89 22.3G 801004 F51 C~2rY8 2016 09 26.36051 21 44 57.130 -07 34 45.87 22.7G 801004 F51 C~2rY8 2017 06 25.54554 21 58 59.351 -05 57 11.60 22.2G 801004 F51 C~2rY8 2017 06 25.55757 21 58 59.312 -05 57 11.75 21.9G 801004 F51 C~2rY8 2017 06 25.56962 21 58 59.264 -05 57 11.72 22.0G 801004 F51 C~2rY8 2017 07 27.45687 21 56 51.232 -06 02 04.76 23.0G 801004 F51 C~2rY8 2017 07 27.46922 21 56 51.152 -06 02 04.84 22.9G 801004 F51 C~2rY8 2017 07 27.48163 21 56 51.083 -06 02 05.33 22.2G 801004 F51 C~2rY8 2017 08 03.47350 21 56 15.038 -06 04 14.32 22.4G 801004 F51 C~2rY8 2017 08 03.48558 21 56 14.990 -06 04 14.30 22.4G 801004 F51 C~2rY8 2017 08 03.49768 21 56 14.930 -06 04 14.98 21.0G 801004 F51 C~2rY8 2017 08 03.50978 21 56 14.874 -06 04 15.01 22.5G 801004 F51 C~2rY8 2017 08 24.42233 21 54 20.402 -06 12 12.64 22.2G 801004 F51 C~2rY8 2017 08 24.43434 21 54 20.333 -06 12 12.85 22.0G 801004 F51 C~2rY8 2017 08 24.44635 21 54 20.278 -06 12 13.27 22.6G 801004 F51 C~2rY8 2017 08 24.45837 21 54 20.210 -06 12 13.64 22.6G 801004 F51 C~2rY8 2017 09 11.37928 21 52 44.875 -06 19 57.47 23.0G 801004 F51 C~2rY8 2017 10 23.22856 21 50 15.572 -06 35 01.76 23.3G 801004 F51 C~2rY8 2017 10 23.24054 21 50 15.562 -06 35 01.74 22.6G 801004 F51 C~2rY8 2017 10 23.25263 21 50 15.541 -06 35 01.69 22.2G 801004 F51 C~2rY8 2017 10 23.26464 21 50 15.488 -06 35 01.41 21.6G 801004 F51 C~2rY8 2020 06 29.57196 22 18 05.492 -02 33 06.48 22.6w 801004 F51 C~3yMn 2020 06 29.58107 22 18 05.448 -02 33 06.34 22.7w 801004 F51 C~3yMn 2020 06 29.59020 22 18 05.446 -02 33 06.34 22.8w 801004 F51 C~3yMn 2020 06 29.59930 22 18 05.416 -02 33 06.47 22.3w 801004 F51 C~3yMn 2020 08 19.43584 22 14 23.179 -02 43 52.85 22.4w 801004 F51 C~442z 2020 08 19.44777 22 14 23.110 -02 43 52.98 22.3w 801004 F51 C~442z 2020 08 19.45971 22 14 23.049 -02 43 53.13 22.4w 801004 F51 C~442z 2021 09 08.365487 22 19 03.401 -01 44 16.93 22.2w 801004 F51 C~52T8 2021 09 08.377034 22 19 03.351 -01 44 17.76 22.5w 801004 F51 C~52T8 2021 09 08.388572 22 19 03.265 -01 44 17.85 22.5w 801004 F51 C~52T8 2023 09 06.166320 22 32 00.792 +00 32 29.89 22.3G 801004 G37 C~7B27 2023 09 06.212200 22 32 00.547 +00 32 28.57 801004 G37 C~7B27 2023 09 06.251000 22 32 00.334 +00 32 27.45 801004 G37 C~7B27
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 -0.42 0.00 0.60
2 0.0084 0.00 0.06 0.00 -0.05
3 0.0111 0.00 -0.07 0.00 -0.19
4 0.0793 0.00 0.19 0.00 -0.33
5 0.0927 0.00 -0.09 0.00 0.11
6 0.8465 0.00 0.04 0.00 0.08
7 0.8465 0.00 -0.02 0.00 -0.10
8 0.9693 0.00 0.47 0.00 -0.23
9 0.9775 0.00 0.10 0.00 0.06
10 0.9775 0.00 0.15 0.00 0.15
11 0.9775 0.00 -0.08 0.00 -0.07
12 0.9776 0.00 -0.21 0.00 0.05
13 1.0402 0.00 -0.05 0.00 -0.11
14 2.8806 0.00 0.06 0.00 -0.04
15 2.9515 0.00 0.02 0.00 0.46
16 2.9516 0.00 0.23 0.00 0.14
17 2.9516 0.00 0.06 0.00 -0.05
18 3.0690 0.00 0.22 0.00 0.07
19 3.0771 0.00 0.05 0.00 -0.01
20 3.0771 0.00 0.06 0.00 -0.11
21 3.0771 0.00 -0.01 0.00 -0.01
22 3.0771 0.00 0.06 0.00 -0.07
23 3.0772 0.00 0.06 0.00 0.00
24 3.0772 0.00 -0.02 0.00 0.11
25 3.0772 0.00 -0.05 0.00 -0.09
26 3.0772 0.00 -0.03 0.00 -0.01
27 3.9071 0.00 -0.13 0.00 -0.01
28 3.9071 0.00 0.13 0.00 -0.06
29 3.9072 0.00 -0.07 0.00 -0.04
30 3.9291 0.00 0.03 0.00 -0.02
31 3.9291 0.00 0.29 0.00 -0.03
32 3.9292 0.00 0.03 0.00 -0.07
33 3.9866 0.00 -0.10 0.00 -0.06
34 4.0330 0.00 -0.88 0.00 -0.47
35 4.0357 0.00 -0.21 0.00 -0.14
36 4.0357 0.00 0.23 0.00 -0.07
37 4.0358 0.00 -0.19 0.00 -0.04
38 4.0656 0.00 0.08 0.00 0.12
39 4.0657 0.00 -0.14 0.00 0.11
40 4.0657 0.00 -0.09 0.00 0.07
41 4.0683 0.00 -0.11 0.00 0.24
42 4.0684 0.00 -0.15 0.00 0.29
43 4.0684 0.00 0.06 0.00 0.11
44 4.0684 0.00 -0.26 0.00 0.02
45 4.1310 0.00 0.11 0.00 -0.07
46 4.1311 0.00 -0.11 0.00 0.27
47 4.1311 0.00 0.15 0.00 0.22
48 4.1311 0.00 -0.07 0.00 0.09
49 4.1420 0.00 -0.01 0.00 0.01
50 4.3553 0.00 0.07 0.00 -0.19
51 5.0922 0.00 -0.10 0.00 -0.29
52 5.0950 0.00 0.05 0.00 0.00
53 5.0950 0.00 0.08 0.00 -0.04
54 5.0951 0.00 0.05 0.00 0.02
55 5.0951 0.00 0.01 0.00 0.01
56 5.1851 0.00 -0.05 0.00 0.20
57 5.1851 0.00 -0.00 0.00 -0.09
58 5.1852 0.00 0.15 0.00 -0.04
59 5.1852 0.00 -0.07 0.00 -0.13
60 5.1878 0.00 0.16 0.00 -0.02
61 5.1879 0.00 0.24 0.00 -0.17
62 5.1879 0.00 -0.03 0.00 -0.05
63 5.1879 0.00 -0.18 0.00 0.27
64 5.7774 0.00 -0.25 0.00 -0.07
65 5.8483 0.00 0.12 0.00 -0.14
66 5.8483 0.00 0.16 0.00 -0.39
67 5.8484 0.00 -0.12 0.00 0.25
68 5.8484 0.00 0.10 0.00 0.08
69 5.9303 0.00 0.05 0.00 -0.07
70 5.9304 0.00 0.20 0.00 0.10
71 5.9304 0.00 0.08 0.00 0.51
72 5.9305 0.00 0.04 0.00 -0.09
73 6.1518 0.00 -0.11 0.00 -0.04
74 6.8970 0.00 0.04 0.00 -0.11
75 6.8970 0.00 -0.03 0.00 -0.25
76 6.8970 0.00 -0.23 0.00 -0.22
77 6.9843 0.00 0.30 0.00 -0.03
78 6.9844 0.00 0.04 0.00 0.10
79 6.9844 0.00 -0.04 0.00 -0.17
80 7.0035 0.00 -0.15 0.00 -0.08
81 7.0036 0.00 0.11 0.00 0.18
82 7.0036 0.00 0.19 0.00 -0.26
83 7.0036 0.00 0.32 0.00 -0.05
84 7.0609 0.00 -0.07 0.00 0.01
85 7.0609 0.00 -0.09 0.00 0.10
86 7.0610 0.00 0.10 0.00 -0.02
87 7.0610 0.00 0.09 0.00 -0.08
88 7.1101 0.00 0.04 0.00 -0.46
89 7.2246 0.00 -0.01 0.00 -0.21
90 7.2247 0.00 0.17 0.00 -0.02
91 7.2247 0.00 0.18 0.00 0.20
92 7.2247 0.00 -0.29 0.00 0.65
93 9.9087 0.00 -0.01 0.00 -0.00
94 9.9087 0.00 -0.29 0.00 0.12
95 9.9087 0.00 0.05 0.00 0.11
96 9.9087 0.00 -0.02 0.00 -0.04
97 10.0479 0.00 -0.04 0.00 -0.11
98 10.0480 0.00 -0.09 0.00 0.05
99 10.0480 0.00 -0.01 0.00 0.19
100 11.1018 0.00 0.08 0.00 0.27
101 11.1018 0.00 0.26 0.00 -0.23
102 11.1019 0.00 -0.11 0.00 0.01
103 13.0944 0.00 -0.07 0.00 0.02
104 13.0945 0.00 -0.04 0.00 0.01
105 13.0947 0.00 -0.09 0.00 -0.00
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.
801004 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 42.705 42.705 42.705 ecceobj 0.211 0.211 0.211 incobj 16.104 16.104 16.104 qmin 32.229 32.183 32.248 qmax 54.217 53.924 53.947 amean 42.767 42.844 42.809 amin 42.169 42.230 42.273 amax 43.425 43.702 43.378 emean 0.218 0.219 0.217 emin 0.191 0.188 0.182 emax 0.249 0.247 0.246 imean 17.156 17.002 17.255 imin 15.611 15.292 15.900 imax 18.471 18.208 18.574 excite_mean 0.367 0.365 0.368 fracstop 1.000 1.000 1.000 cjmean 2.926 2.928 2.926 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 172.8 175.5 175.6 kozaiamp 180.0 180.0 180.0