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: 22LT15
# Created Fri May 3 01:18:56 2024
# Orbit generated from Bernstein formalism
# Fitting 15 observations of 15
# Arc: 2.01y
# First observation: 2021/09/06
# Last observation: 2023/09/10
Preliminary a, adot, b, bdot, g, gdot:
0.000026 0.023092 -0.000010 -0.002081 0.024134 0.000000
# Chi-squared of fit: 0.02 DOF: 24 RMS: 0.01
# Min/Max residuals: -0.01 0.01
# Exact a, adot, b, bdot, g, gdot:
1.533482E-05 2.307099E-02 -1.333880E-06 -2.080973E-03 2.381291E-02 -8.164771E-04
# Covariance matrix:
4.8720E-13 -7.5103E-13 -1.5670E-14 4.9285E-14 -2.4674E-13 -1.1018E-11
-7.5103E-13 3.7224E-11 1.2195E-12 -3.6314E-12 1.7898E-12 8.0777E-10
-1.5670E-14 1.2195E-12 3.0930E-13 -3.2036E-13 5.6409E-14 2.6641E-11
4.9285E-14 -3.6314E-12 -3.2036E-13 5.9005E-13 -1.7073E-13 -7.9321E-11
-2.4674E-13 1.7898E-12 5.6409E-14 -1.7073E-13 3.1736E-13 3.8034E-11
-1.1018E-11 8.0777E-10 2.6641E-11 -7.9321E-11 3.8034E-11 1.7644E-08
# lat0 lon0 xBary yBary zBary JD0
0.964201 -75.101111 -0.854249 0.008526 -0.517952 2459463.733371
# Heliocentric elements and errors
Epoch: 2459460.5000 = 2021/09/03
Mean Anomaly: 327.22984 +/- 8.475
Argument of Peri: 204.28705 +/- 9.136
Long of Asc Node: 116.48679 +/- 0.002
Inclination: 5.24654 +/- 0.001
Eccentricity: 0.03116909 +/- 0.0031
Semi-Major Axis: 43.65839374 +/- 0.0044
Time of Perihelion: 2469051.7695 +/- 2480.5
Perihelion: 42.29760148 +/- 0.1366
Aphelion: 45.01918600 +/- 0.1366
Period (y) 288.4761 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 11.76317618 +/- 0.0003
Ecliptic Y -40.86159726 +/- 0.0010
Ecliptic Z 0.70664267 +/- 0.0000
Ecliptic XDOT 0.00254505 +/- 0.0000
Ecliptic YDOT 0.00077667 +/- 0.0000
Ecliptic ZDOT -0.00024098 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.52695367 +/- 0.0009
Geocenter to KBO 41.99402979 +/- 0.0010
# Hcoef: 7.55
The following table shows the complete astrometric record for 22LT15. 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 (22LT15) followed by the observatory code and reference code for the source of the astrometry.
2021 09 06.23257 19 04 13.583 -21 38 54.45 24.1r 22LT15 266 C~7umS 2021 09 06.31280 19 04 13.409 -21 38 54.90 24.1r 22LT15 266 C~7umS 2021 09 06.39351 19 04 13.236 -21 38 55.33 24.1r 22LT15 266 C~7umS 2022 06 02.44372 19 16 47.258 -21 22 36.88 24.0r 22LT15 266 C~6Ipb 2022 06 02.53086 19 16 46.916 -21 22 37.54 24.0r 22LT15 266 C~6Ipb 2022 06 02.61096 19 16 46.601 -21 22 38.14 24.0r 22LT15 266 C~6Ipb 2022 06 03.44086 19 16 43.401 -21 22 44.42 24.0r 22LT15 266 C~6Ipb 2022 06 03.52767 19 16 43.056 -21 22 45.10 24.0r 22LT15 266 C~6Ipb 2022 06 03.61505 19 16 42.707 -21 22 45.76 24.0r 22LT15 266 C~6Ipb 2022 06 30.45132 19 14 41.276 -21 26 45.65 24.2r 22LT15 266 C~6Ipb 2022 06 30.51613 19 14 40.950 -21 26 46.29 24.2r 22LT15 266 C~6Ipb 2022 06 30.57969 19 14 40.630 -21 26 46.90 24.2r 22LT15 266 C~6Ipb 2023 09 10.22905 19 15 32.581 -21 34 32.15 22.8V 22LT15 266 C~7umS 2023 09 10.32490 19 15 32.380 -21 34 32.69 22.8V 22LT15 266 C~7umS 2023 09 10.42059 19 15 32.182 -21 34 33.22 22.8V 22LT15 266 C~7umS
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 -0.00 0.00 -0.01
2 0.0002 -2.46 -0.00 -0.18 -0.01
3 0.0004 -4.91 0.00 -0.34 -0.01
4 0.7371 10567.91 0.00 -292.31 0.00
5 0.7373 10563.08 0.00 -292.35 0.01
6 0.7375 10558.63 -0.00 -292.37 0.01
7 0.7398 10513.37 -0.01 -292.79 0.00
8 0.7400 10508.49 -0.00 -292.84 -0.00
9 0.7403 10503.56 -0.01 -292.86 -0.01
10 0.8137 8787.31 0.00 -313.20 0.01
11 0.8139 8782.70 0.01 -313.26 0.01
12 0.8141 8778.19 0.01 -313.30 0.01
13 2.0096 9439.33 -0.00 -867.69 -0.01
14 2.0098 9436.47 -0.00 -867.87 -0.00
15 2.0101 9433.66 -0.00 -868.04 -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.
22LT15 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.177 43.262 43.110 ecceobj 0.025 0.020 0.036 incobj 5.259 5.261 5.257 qmin 41.439 41.881 40.773 qmax 45.537 45.249 46.090 amean 43.403 43.493 43.332 amin 43.071 43.163 43.004 amax 43.743 43.837 43.675 emean 0.026 0.018 0.039 emin 0.008 0.001 0.021 emax 0.042 0.033 0.056 imean 3.895 3.852 3.942 imin 3.095 3.120 3.068 imax 4.622 4.532 4.739 excite_mean 0.073 0.070 0.080 fracstop 1.000 1.000 1.000 cjmean 3.088 3.090 3.086 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 182.6 184.3 178.4 kozaiamp 180.0 180.0 180.0