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: 20KV11
# Created Sun Apr 27 01:11:20 2025
# Orbit generated from Bernstein formalism
# Fitting 46 observations of 46
# Arc: 2.17y
# First observation: 2020/05/29
# Last observation: 2022/07/31
Preliminary a, adot, b, bdot, g, gdot:
-0.000047 0.011134 -0.000002 -0.000792 0.015307 0.000000
# Chi-squared of fit: 5.90 DOF: 86 RMS: 0.06
# Min/Max residuals: -0.16 0.16
# Exact a, adot, b, bdot, g, gdot:
1.166909E-05 1.124798E-02 -8.082903E-07 -8.041672E-04 1.546827E-02 7.923103E-03
# Covariance matrix:
1.7288E-13 1.3017E-15 9.6587E-16 -5.9213E-15 1.6517E-13 3.5653E-12
1.3017E-15 2.3058E-13 3.6587E-15 -1.8056E-14 2.2753E-13 1.0983E-11
9.6587E-16 3.6587E-15 9.3881E-14 -5.6030E-14 4.3299E-15 2.2283E-13
-5.9213E-15 -1.8056E-14 -5.6030E-14 5.2276E-14 -2.3131E-14 -1.1014E-12
1.6517E-13 2.2753E-13 4.3299E-15 -2.3131E-14 4.2972E-13 1.4015E-11
3.5653E-12 1.0983E-11 2.2283E-13 -1.1014E-12 1.4015E-11 6.6992E-10
# lat0 lon0 xBary yBary zBary JD0
2.345116 -74.307439 0.619236 0.032472 -0.796042 2458998.947781
# Heliocentric elements and errors
Epoch: 2458990.5000 = 2020/05/21
Mean Anomaly: 28.20032 +/- 0.179
Argument of Peri: 50.78881 +/- 0.032
Long of Asc Node: 135.12618 +/- 0.007
Inclination: 4.62863 +/- 0.001
Eccentricity: 0.62493173 +/- 0.0020
Semi-Major Axis: 96.71786843 +/- 0.3927
Time of Perihelion: 2431775.3912 +/- 50.2
Perihelion: 36.27580401 +/- 0.2422
Aphelion: 157.15993285 +/- 0.6664
Period (y) 951.1922 +/- 5.79
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 17.09627285 +/- 0.0007
Ecliptic Y -63.12803570 +/- 0.0026
Ecliptic Z 2.64534134 +/- 0.0001
Ecliptic XDOT 0.00230534 +/- 0.0000
Ecliptic YDOT -0.00081255 +/- 0.0000
Ecliptic ZDOT -0.00008507 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 65.45555184 +/- 0.0026
Geocenter to KBO 64.64848593 +/- 0.0027
# Hcoef: 7.22
The following table shows the complete astrometric record for 20KV11. 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 (20KV11) followed by the observatory code and reference code for the source of the astrometry.
2020 05 29.44698 19 06 56.274 -20 11 13.80 25.2r 20KV11 266 C~6VL7 2020 05 29.53371 19 06 56.047 -20 11 14.09 25.2r 20KV11 266 C~5Zeg 2020 05 29.61905 19 06 55.822 -20 11 14.36 25.2r 20KV11 266 C~5Zeg 2020 05 31.44139 19 06 51.073 -20 11 20.49 25.3r 20KV11 266 C~6VL7 2020 05 31.52961 19 06 50.835 -20 11 20.80 25.3r 20KV11 266 C~5Zeg 2020 05 31.61814 19 06 50.595 -20 11 21.10 25.3r 20KV11 266 C~5Zeg 2020 06 24.43648 19 05 38.855 -20 13 05.84 25.4r 20KV11 266 C~6VL7 2020 06 24.49243 19 05 38.669 -20 13 06.13 25.4r 20KV11 266 C~6VL7 2020 06 24.54836 19 05 38.482 -20 13 06.41 25.4r 20KV11 266 C~6VL7 2020 08 12.26680 19 03 03.868 -20 17 51.04 25.5r 20KV11 266 C~6VL7 2020 08 12.34843 19 03 03.648 -20 17 51.52 25.5r 20KV11 266 C~5Zeg 2020 08 12.42950 19 03 03.430 -20 17 51.98 25.5r 20KV11 266 C~5Zeg 2020 08 14.24286 19 02 58.724 -20 18 02.46 25.1r 20KV11 266 C~6VL7 2020 08 14.33285 19 02 58.488 -20 18 02.98 25.1r 20KV11 266 C~5Zeg 2020 08 14.42134 19 02 58.257 -20 18 03.48 25.1r 20KV11 266 C~5Zeh 2021 07 09.361784 19 07 35.75 -20 12 46.4 25.2G 20KV11 T14 C~5zHB 2021 07 09.367440 19 07 35.73 -20 12 46.4 25.2G 20KV11 T14 C~5zHB 2021 07 09.409605 19 07 35.59 -20 12 46.7 25.1G 20KV11 T14 C~5zHB 2021 07 10.466562 19 07 32.06 -20 12 53.0 25.1G 20KV11 T14 C~5zHB 2021 07 10.522308 19 07 31.87 -20 12 53.3 25.1G 20KV11 T14 C~5zHB 2021 07 10.528023 19 07 31.85 -20 12 53.4 25.1G 20KV11 T14 C~5zHB 2021 07 25.456439 19 06 43.054 -20 14 25.02 20KV11 250 S~5zHB 2021 07 25.462585 19 06 43.031 -20 14 25.09 20KV11 250 S~5zHB 2021 07 25.468730 19 06 43.006 -20 14 25.11 20KV11 250 S~5zHB 2021 07 25.474876 19 06 42.980 -20 14 25.11 20KV11 250 S~5zHB 2021 07 25.481022 19 06 42.958 -20 14 25.10 20KV11 250 S~5zHB 2021 08 27.151301 19 05 15.749 -20 17 37.37 20KV11 250 S~5zHB 2021 08 27.157447 19 05 15.734 -20 17 37.44 20KV11 250 S~5zHB 2021 08 27.163592 19 05 15.716 -20 17 37.51 20KV11 250 S~5zHB 2021 08 27.169738 19 05 15.698 -20 17 37.56 20KV11 250 S~5zHB 2021 08 27.175884 19 05 15.684 -20 17 37.62 20KV11 250 S~5zHB 2022 06 01.676506 19 12 15.433 -20 07 43.47 20KV11 250 S~5zHB 2022 06 01.682421 19 12 15.417 -20 07 43.52 20KV11 250 S~5zHB 2022 06 01.688601 19 12 15.397 -20 07 43.61 20KV11 250 S~5zHB 2022 06 01.694562 19 12 15.376 -20 07 43.66 20KV11 250 S~5zHB 2022 06 01.700523 19 12 15.355 -20 07 43.68 20KV11 250 S~5zHB 2022 06 11.533024 19 11 48.231 -20 08 24.49 20KV11 250 S~5zHB 2022 06 11.538938 19 11 48.212 -20 08 24.58 20KV11 250 S~5zHB 2022 06 11.545119 19 11 48.189 -20 08 24.64 20KV11 250 S~5zHB 2022 06 11.551079 19 11 48.167 -20 08 24.66 20KV11 250 S~5zHB 2022 06 11.557040 19 11 48.144 -20 08 24.67 20KV11 250 S~5zHB 2022 07 31.474460 19 09 08.506 -20 13 15.41 20KV11 250 S~5zHB 2022 07 31.480374 19 09 08.484 -20 13 15.51 20KV11 250 S~5zHB 2022 07 31.486555 19 09 08.460 -20 13 15.58 20KV11 250 S~5zHB 2022 07 31.492515 19 09 08.437 -20 13 15.63 20KV11 250 S~5zHB 2022 07 31.498476 19 09 08.414 -20 13 15.65 20KV11 250 S~5zHB
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 -0.04 0.00 -0.00
2 0.0002 -3.21 -0.03 0.08 -0.00
3 0.0005 -6.39 -0.04 0.17 0.00
4 0.0055 -73.51 -0.04 1.74 -0.01
5 0.0057 -76.87 -0.03 1.82 -0.01
6 0.0059 -80.26 -0.04 1.91 -0.01
7 0.0712 -1095.52 0.12 12.56 -0.08
8 0.0713 -1098.15 0.13 12.57 -0.08
9 0.0715 -1100.80 0.13 12.59 -0.07
10 0.2048 -3294.96 -0.04 -29.32 0.07
11 0.2051 -3298.09 -0.04 -29.46 0.07
12 0.2053 -3301.19 -0.03 -29.58 0.07
13 0.2103 -3368.16 -0.01 -32.80 0.01
14 0.2105 -3371.52 -0.01 -32.95 0.01
15 0.2107 -3374.80 -0.01 -33.10 0.01
16 1.1113 541.37 -0.01 -155.96 -0.02
17 1.1113 541.09 -0.01 -155.93 0.02
18 1.1115 539.09 0.02 -156.00 -0.03
19 1.1144 489.01 0.03 -156.51 -0.00
20 1.1145 486.32 0.02 -156.50 0.03
21 1.1145 486.03 0.00 -156.57 -0.04
22 1.1554 -206.75 0.11 -168.66 -0.04
23 1.1554 -207.08 0.06 -168.70 -0.06
24 1.1554 -207.43 -0.02 -168.67 -0.04
25 1.1554 -207.80 -0.11 -168.63 0.01
26 1.1555 -208.10 -0.14 -168.59 0.07
27 1.2449 -1449.15 0.11 -220.70 0.10
28 1.2449 -1449.37 0.07 -220.75 0.07
29 1.2449 -1449.63 -0.01 -220.79 0.04
30 1.2450 -1449.89 -0.10 -220.81 0.03
31 1.2450 -1450.09 -0.12 -220.85 0.01
32 2.0075 4488.06 0.08 -324.23 0.06
33 2.0075 4487.83 0.06 -324.25 0.03
34 2.0075 4487.54 0.00 -324.31 -0.03
35 2.0075 4487.24 -0.08 -324.32 -0.05
36 2.0075 4486.95 -0.16 -324.31 -0.03
37 2.0345 4102.66 0.11 -318.11 0.03
38 2.0345 4102.38 0.08 -318.17 -0.03
39 2.0345 4102.05 0.01 -318.19 -0.05
40 2.0345 4101.74 -0.06 -318.17 -0.04
41 2.0345 4101.42 -0.13 -318.14 -0.01
42 2.1712 1834.72 0.16 -337.24 0.05
43 2.1712 1834.40 0.10 -337.30 -0.00
44 2.1712 1834.05 0.02 -337.33 -0.02
45 2.1712 1833.72 -0.05 -337.34 -0.03
46 2.1713 1833.40 -0.11 -337.33 -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.
20KV11 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 94.317 95.359 93.308 ecceobj 0.619 0.625 0.614 incobj 4.636 4.636 4.636 qmin 35.038 34.903 35.178 qmax 166.955 165.691 159.116 amean 97.626 97.369 92.719 amin 92.289 93.216 89.564 amax 101.431 100.765 97.590 emean 0.631 0.631 0.610 emin 0.606 0.614 0.593 emax 0.646 0.644 0.630 imean 3.165 3.265 3.416 imin 2.810 2.959 3.064 imax 3.557 3.727 3.952 excite_mean 0.633 0.634 0.613 fracstop 1.000 1.000 1.000 cjmean 3.098 3.093 3.101 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 171.1 166.3 177.8 kozaiamp 180.0 180.0 180.0