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: 21LV43
# Created Sun Dec 22 02:11:17 2024
# Orbit generated from Bernstein formalism
# Fitting 21 observations of 21
# Arc: 1.37y
# First observation: 2021/06/09
# Last observation: 2022/10/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000045 0.028053 -0.000002 -0.000682 0.026273 0.000000
# Chi-squared of fit: 0.98 DOF: 36 RMS: 0.04
# Min/Max residuals: -0.08 0.09
# Exact a, adot, b, bdot, g, gdot:
1.689647E-05 2.832505E-02 -4.037747E-07 -7.179963E-04 2.656250E-02 7.526621E-03
# Covariance matrix:
3.4577E-13 1.2740E-12 1.6381E-14 -2.4900E-13 1.4564E-12 1.8526E-10
1.2740E-12 1.2079E-11 1.5879E-13 -2.4197E-12 1.2338E-11 1.7854E-09
1.6381E-14 1.5879E-13 1.4120E-13 -1.4299E-13 1.6364E-13 2.4829E-11
-2.4900E-13 -2.4197E-12 -1.4299E-13 6.9362E-13 -2.4932E-12 -3.7865E-10
1.4564E-12 1.2338E-11 1.6364E-13 -2.4932E-12 1.2804E-11 1.8404E-09
1.8526E-10 1.7854E-09 2.4829E-11 -3.7865E-10 1.8404E-09 2.7864E-07
# lat0 lon0 xBary yBary zBary JD0
0.906548 -72.700823 0.494457 0.013754 -0.882779 2459374.942811
# Heliocentric elements and errors
Epoch: 2459370.5000 = 2021/06/05
Mean Anomaly: 37.16845 +/- 0.751
Argument of Peri: 82.00741 +/- 1.497
Long of Asc Node: 138.35483 +/- 0.018
Inclination: 1.68120 +/- 0.001
Eccentricity: 0.30671376 +/- 0.0192
Semi-Major Axis: 47.80749793 +/- 0.6298
Time of Perihelion: 2446904.8639 +/- 51.9
Perihelion: 33.14428025 +/- 1.0154
Aphelion: 62.47071561 +/- 1.2319
Period (y) 330.5615 +/- 6.53
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 10.99206979 +/- 0.0015
Ecliptic Y -36.93435700 +/- 0.0048
Ecliptic Z 0.59569787 +/- 0.0001
Ecliptic XDOT 0.00302404 +/- 0.0000
Ecliptic YDOT 0.00013356 +/- 0.0001
Ecliptic ZDOT -0.00006191 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.53994267 +/- 0.0047
Geocenter to KBO 37.64705610 +/- 0.0051
# Hcoef: 9.99
The following table shows the complete astrometric record for 21LV43. 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 (21LV43) followed by the observatory code and reference code for the source of the astrometry.
2021 06 09.44201 19 14 30.203 -21 25 16.08 26.1r 21LV43 266 C~6Ip1 2021 06 09.52601 19 14 29.807 -21 25 16.76 26.1r 21LV43 266 C~6Ip1 2021 06 09.61426 19 14 29.390 -21 25 17.45 26.1r 21LV43 266 C~6Ip1 2021 06 17.43605 19 13 51.614 -21 26 23.00 26.3r 21LV43 266 C~6Ip1 2021 06 17.50053 19 13 51.285 -21 26 23.57 26.3r 21LV43 266 C~6Ip1 2021 06 17.57953 19 13 50.881 -21 26 24.25 26.3r 21LV43 266 C~6Ip2 2021 07 05.35106 19 12 17.050 -21 29 10.58 26.4r 21LV43 266 C~6Ip2 2021 07 05.44091 19 12 16.552 -21 29 11.47 26.4r 21LV43 266 C~6Ip2 2021 07 05.52517 19 12 16.085 -21 29 12.29 26.4r 21LV43 266 C~6Ip2 2021 09 06.23258 19 07 39.347 -21 38 02.84 26.5r 21LV43 266 C~6Ip2 2021 09 06.31281 19 07 39.158 -21 38 03.27 26.5r 21LV43 266 C~6Ip2 2021 09 06.39352 19 07 38.968 -21 38 03.67 26.5r 21LV43 266 C~6Ip2 2022 10 20.21696 19 14 26.795 -21 30 06.11 25.2V 21LV43 266 C~7um7 2022 10 20.26058 19 14 26.890 -21 30 06.00 25.2V 21LV43 266 C~7um7 2022 10 20.29842 19 14 26.973 -21 30 05.90 25.2V 21LV43 266 C~7um7 2022 10 21.20926 19 14 29.086 -21 30 03.80 25.4V 21LV43 266 C~7um7 2022 10 21.25420 19 14 29.189 -21 30 03.68 25.4V 21LV43 266 C~7um7 2022 10 21.29846 19 14 29.290 -21 30 03.55 25.4V 21LV43 266 C~7um7 2022 10 23.20599 19 14 34.016 -21 29 58.42 25.5V 21LV43 266 C~7um7 2022 10 23.25093 19 14 34.128 -21 29 58.27 25.5V 21LV43 266 C~7um7 2022 10 23.29489 19 14 34.238 -21 29 58.13 25.5V 21LV43 266 C~7um7
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 -0.01 0.00 -0.00
2 0.0002 -5.57 0.00 0.03 -0.01
3 0.0005 -11.43 -0.00 0.08 -0.01
4 0.0219 -542.95 0.01 1.81 0.02
5 0.0221 -547.58 0.02 1.82 0.02
6 0.0223 -553.26 0.01 1.86 0.02
7 0.0709 -1873.69 -0.02 0.28 0.01
8 0.0712 -1880.70 -0.02 0.25 0.01
9 0.0714 -1887.27 -0.02 0.25 0.00
10 0.2431 -5785.10 0.00 -63.78 -0.03
11 0.2433 -5787.77 0.01 -63.90 -0.03
12 0.2435 -5790.45 0.00 -63.99 -0.03
13 1.3628 -84.03 -0.04 -281.64 0.09
14 1.3630 -82.70 -0.04 -281.70 0.09
15 1.3631 -81.54 -0.04 -281.75 0.09
16 1.3656 -52.02 -0.01 -283.41 -0.01
17 1.3657 -50.58 0.00 -283.47 -0.01
18 1.3658 -49.16 -0.01 -283.52 -0.01
19 1.3710 16.91 0.05 -286.82 -0.08
20 1.3711 18.48 0.05 -286.87 -0.07
21 1.3713 20.02 0.04 -286.92 -0.08
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.
21LV43 quality flag:1 Type: 2:1E REMOVED SCATNEAR axisobj 47.091 49.420 45.204 ecceobj 0.300 0.352 0.248 incobj 1.682 1.683 1.680 qmin 32.341 30.337 31.547 qmax 64.637 72.744 65.855 amean 47.797 44.311 44.492 amin 47.060 38.135 40.237 amax 48.734 52.026 49.050 emean 0.311 0.288 0.253 emin 0.296 0.179 0.193 emax 0.327 0.398 0.343 imean 1.059 1.179 3.213 imin 0.860 0.130 0.871 imax 1.269 2.629 5.085 excite_mean 0.311 0.289 0.260 fracstop 1.000 0.153 1.000 cjmean 3.024 3.001 3.024 libcent 0 179.8 -180.0 -180.0 libamp 0 157.3 -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 84.8 197.4 173.3 kozaiamp 66.5 179.4 180.0