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: 20KV53
# Created Mon Apr 28 01:11:21 2025
# Orbit generated from Bernstein formalism
# Fitting 21 observations of 21
# Arc: 79.98d
# First observation: 2020/05/26
# Last observation: 2020/08/14
Preliminary a, adot, b, bdot, g, gdot:
0.000005 0.016645 0.000002 -0.001340 0.021915 0.000000
# Chi-squared of fit: 3.23 DOF: 36 RMS: 0.07
# Min/Max residuals: -0.14 0.17
# Exact a, adot, b, bdot, g, gdot:
1.518422E-05 2.116659E-02 -1.732690E-06 -1.343121E-03 2.265794E-02 -1.772814E-03
# Covariance matrix:
2.1014E-13 -9.3740E-12 4.7300E-15 -2.0550E-14 -9.5563E-13 1.2438E-10
-9.3740E-12 1.0402E-07 -6.9841E-11 -2.3971E-10 1.9588E-08 3.6643E-07
4.7300E-15 -6.9841E-11 1.8495E-13 -6.3484E-13 -1.3163E-11 -2.4829E-10
-2.0550E-14 -2.3971E-10 -6.3484E-13 9.8451E-12 -4.5516E-11 -9.3181E-10
-9.5563E-13 1.9588E-08 -1.3163E-11 -4.5516E-11 3.6951E-09 7.0439E-08
1.2438E-10 3.6643E-07 -2.4829E-10 -9.3181E-10 7.0439E-08 1.6257E-06
# lat0 lon0 xBary yBary zBary JD0
2.533070 -73.127023 0.674199 0.033045 -0.749851 2458995.943811
# Heliocentric elements and errors
Epoch: 2458990.5000 = 2020/05/21
Mean Anomaly: 281.65147 +/- 7.096
Argument of Peri: 234.87235 +/- 14.513
Long of Asc Node: 140.68818 +/- 0.437
Inclination: 4.37126 +/- 0.049
Eccentricity: 0.09874841 +/- 0.0589
Semi-Major Axis: 45.36931775 +/- 0.5424
Time of Perihelion: 2483282.8852 +/- 2156.6
Perihelion: 40.88916990 +/- 2.7185
Aphelion: 49.84946560 +/- 2.7398
Period (y) 305.5988 +/- 5.48
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 12.37593034 +/- 0.0343
Ecliptic Y -43.11421250 +/- 0.1132
Ecliptic Z 1.95056936 +/- 0.0052
Ecliptic XDOT 0.00239563 +/- 0.0001
Ecliptic YDOT 0.00094380 +/- 0.0001
Ecliptic ZDOT -0.00017184 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.89770253 +/- 0.1091
Geocenter to KBO 44.13464595 +/- 0.1184
# Hcoef: 9.24
The following table shows the complete astrometric record for 20KV53. 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 (20KV53) followed by the observatory code and reference code for the source of the astrometry.
2020 05 26.44301 19 11 49.700 -19 51 37.99 24.5r 20KV53 266 C~6c5Y 2020 05 26.50149 19 11 49.502 -19 51 38.24 24.5r 20KV53 266 C~6c5Y 2020 05 26.55599 19 11 49.316 -19 51 38.47 24.5r 20KV53 266 C~6c5Y 2020 05 29.44698 19 11 39.472 -19 51 51.51 26.1r 20KV53 266 C~6c5Y 2020 05 29.53371 19 11 39.162 -19 51 51.92 26.1r 20KV53 266 C~6c5Y 2020 05 29.61905 19 11 38.855 -19 51 52.31 26.1r 20KV53 266 C~6c5Y 2020 05 31.44139 19 11 32.375 -19 52 00.88 25.9r 20KV53 266 C~6c5Y 2020 05 31.52961 19 11 32.048 -19 52 01.33 25.9r 20KV53 266 C~6c5Y 2020 05 31.61814 19 11 31.720 -19 52 01.76 25.9r 20KV53 266 C~6c5Y 2020 06 21.45390 19 10 05.742 -19 54 12.74 26.0r 20KV53 266 C~6c5Y 2020 06 21.53376 19 10 05.374 -19 54 13.33 26.0r 20KV53 266 C~6c5Y 2020 06 21.61261 19 10 05.012 -19 54 13.90 26.0r 20KV53 266 C~6c5Y 2020 06 24.43648 19 09 52.139 -19 54 35.33 25.8r 20KV53 266 C~6c5Y 2020 06 24.52318 19 09 51.733 -19 54 36.00 25.8r 20KV53 266 C~6c5Y 2020 06 24.61708 19 09 51.295 -19 54 36.70 25.8r 20KV53 266 C~6c5Y 2020 08 12.26680 19 06 13.102 -20 01 45.43 26.0r 20KV53 266 C~6c5Y 2020 08 12.34843 19 06 12.790 -20 01 46.15 26.0r 20KV53 266 C~6c5Y 2020 08 12.42950 19 06 12.481 -20 01 46.85 26.0r 20KV53 266 C~6c5Y 2020 08 14.24286 19 06 05.825 -20 02 02.67 25.6r 20KV53 266 C~6c5Y 2020 08 14.33285 19 06 05.492 -20 02 03.46 25.6r 20KV53 266 C~6c5Y 2020 08 14.42134 19 06 05.165 -20 02 04.21 25.6r 20KV53 266 C~6c5Y
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 -0.09 0.00 0.16
2 0.0002 -2.80 -0.08 0.09 0.17
3 0.0003 -5.44 -0.09 0.19 0.17
4 0.0082 -144.86 0.03 4.28 -0.14
5 0.0085 -149.25 0.04 4.41 -0.14
6 0.0087 -153.60 0.03 4.55 -0.14
7 0.0137 -245.38 0.08 7.23 0.01
8 0.0139 -250.01 0.07 7.35 0.01
9 0.0142 -254.65 0.07 7.49 0.00
10 0.0712 -1474.39 -0.02 24.54 -0.07
11 0.0714 -1479.61 -0.02 24.58 -0.07
12 0.0716 -1484.75 -0.02 24.63 -0.07
13 0.0794 -1667.58 -0.00 25.14 0.01
14 0.0796 -1673.34 -0.00 25.16 0.01
15 0.0799 -1679.56 0.00 25.21 0.01
16 0.2131 -4785.53 -0.00 -40.18 0.01
17 0.2133 -4789.98 -0.01 -40.39 0.02
18 0.2135 -4794.39 -0.01 -40.59 0.02
19 0.2185 -4889.43 0.00 -45.58 0.01
20 0.2187 -4894.19 0.01 -45.83 0.01
21 0.2190 -4898.85 0.01 -46.05 0.01
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.
20KV53 quality flag:1 Type: CLASSICAL CLASSICAL SCATNEAR axisobj 44.836 48.389 43.125 ecceobj 0.102 0.097 0.171 incobj 4.375 4.230 4.495 qmin 39.605 43.175 32.917 qmax 50.781 54.478 61.377 amean 45.034 48.673 44.572 amin 44.665 48.266 42.295 amax 45.441 49.120 47.580 emean 0.104 0.098 0.227 emin 0.090 0.087 0.162 emax 0.118 0.109 0.292 imean 3.632 3.215 3.482 imin 3.010 2.983 0.537 imax 4.282 3.471 7.712 excite_mean 0.122 0.113 0.236 fracstop 1.000 1.000 1.000 cjmean 3.096 3.145 3.039 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 177.1 184.1 180.4 kozaiamp 180.0 179.9 180.0