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: 22LB15
# Created Sun Apr 27 01:11:29 2025
# Orbit generated from Bernstein formalism
# Fitting 18 observations of 18
# Arc: 1.27y
# First observation: 2022/06/02
# Last observation: 2023/09/10
Preliminary a, adot, b, bdot, g, gdot:
0.000001 0.038913 0.000002 0.003621 0.032254 0.000000
# Chi-squared of fit: 0.07 DOF: 30 RMS: 0.01
# Min/Max residuals: -0.02 0.02
# Exact a, adot, b, bdot, g, gdot:
1.905747E-05 3.873656E-02 1.837928E-06 3.662990E-03 3.208049E-02 1.894563E-03
# Covariance matrix:
2.5563E-13 1.0089E-12 -1.1867E-14 3.0918E-13 9.0784E-13 6.6505E-11
1.0089E-12 1.4649E-10 -3.8514E-12 1.0943E-10 7.5054E-11 2.3867E-08
-1.1867E-14 -3.8514E-12 2.3355E-13 -3.0681E-12 -1.9266E-12 -6.4581E-10
3.0918E-13 1.0943E-10 -3.0681E-12 8.4479E-11 5.4660E-11 1.8376E-08
9.0784E-13 7.5054E-11 -1.9266E-12 5.4660E-11 3.9471E-11 1.1919E-08
6.6505E-11 2.3867E-08 -6.4581E-10 1.8376E-08 1.1919E-08 4.0090E-06
# lat0 lon0 xBary yBary zBary JD0
0.878376 -73.142639 0.593580 0.012356 -0.823459 2459732.944521
# Heliocentric elements and errors
Epoch: 2459730.5000 = 2022/05/31
Mean Anomaly: 6.28253 +/- 11.201
Argument of Peri: 359.38510 +/- 17.259
Long of Asc Node: 276.84522 +/- 0.013
Inclination: 5.47533 +/- 0.008
Eccentricity: 0.20010728 +/- 0.0126
Semi-Major Axis: 39.91771822 +/- 0.2815
Time of Perihelion: 2458122.8953 +/- 2866.1
Perihelion: 31.92989239 +/- 0.5514
Aphelion: 47.90554405 +/- 0.6062
Period (y) 252.2068 +/- 2.67
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 8.71868167 +/- 0.0018
Ecliptic Y -30.79077916 +/- 0.0058
Ecliptic Z 0.47799263 +/- 0.0001
Ecliptic XDOT 0.00321108 +/- 0.0000
Ecliptic YDOT 0.00081754 +/- 0.0002
Ecliptic ZDOT 0.00031494 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 32.00493663 +/- 0.0056
Geocenter to KBO 31.17159452 +/- 0.0061
# Hcoef: 10.39
The following table shows the complete astrometric record for 22LB15. 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 (22LB15) followed by the observatory code and reference code for the source of the astrometry.
2022 06 02.44372 19 12 38.093 -21 30 16.32 25.4r 22LB15 266 C~6Ipa 2022 06 02.53086 19 12 37.652 -21 30 16.82 25.4r 22LB15 266 C~6Ipa 2022 06 02.61096 19 12 37.245 -21 30 17.25 25.4r 22LB15 266 C~6Ipa 2022 06 03.44086 19 12 33.119 -21 30 21.90 25.5r 22LB15 266 C~6Ipa 2022 06 03.52767 19 12 32.673 -21 30 22.41 25.5r 22LB15 266 C~6Ipa 2022 06 03.61505 19 12 32.222 -21 30 22.89 25.5r 22LB15 266 C~6Ipa 2022 06 29.45230 19 10 01.743 -21 33 29.69 25.1r 22LB15 266 C~6Ipa 2022 06 29.52231 19 10 01.289 -21 33 30.27 25.1r 22LB15 266 C~6Ipa 2022 06 29.59237 19 10 00.836 -21 33 30.83 25.1r 22LB15 266 C~6Ipa 2022 06 30.45132 19 09 55.372 -21 33 38.08 25.4r 22LB15 266 C~6Ipa 2022 06 30.53436 19 09 54.832 -21 33 38.76 25.4r 22LB15 266 C~6Ipa 2022 06 30.61476 19 09 54.311 -21 33 39.40 25.4r 22LB15 266 C~6Ipa 2023 09 09.22891 19 13 08.896 -21 13 57.38 22LB15 266 C~8ecH 2023 09 09.32430 19 13 08.652 -21 13 57.77 22LB15 266 C~8ecH 2023 09 09.41985 19 13 08.410 -21 13 58.13 22LB15 266 C~8ecH 2023 09 10.22905 19 13 06.498 -21 14 01.46 22LB15 266 C~8ecH 2023 09 10.32490 19 13 06.264 -21 14 01.83 22LB15 266 C~8ecH 2023 09 10.42059 19 13 06.033 -21 14 02.18 22LB15 266 C~8ecH
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 -0.01
2 0.0002 -6.17 0.01 0.27 -0.01
3 0.0005 -11.86 0.00 0.54 -0.00
4 0.0027 -69.57 -0.01 3.06 0.00
5 0.0030 -75.81 -0.00 3.33 0.00
6 0.0032 -82.12 -0.01 3.63 0.01
7 0.0739 -2188.97 -0.01 74.04 0.02
8 0.0741 -2195.33 -0.01 74.22 0.02
9 0.0743 -2201.67 -0.01 74.42 0.02
10 0.0767 -2278.23 0.01 76.35 -0.02
11 0.0769 -2285.79 0.01 76.58 -0.02
12 0.0771 -2293.08 0.01 76.81 -0.02
13 1.2698 548.71 0.00 917.82 -0.01
14 1.2700 545.28 0.01 917.86 -0.00
15 1.2703 541.88 0.01 917.93 -0.00
16 1.2725 514.94 -0.01 917.96 0.00
17 1.2728 511.64 -0.00 918.00 0.01
18 1.2730 508.40 -0.01 918.05 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.
22LB15 quality flag:1 Type: SCATNEAR CENTAURR CENTAURR axisobj 39.468 45.645 36.698 ecceobj 0.193 0.348 0.145 incobj 5.490 5.517 5.461 qmin 31.138 29.533 29.963 qmax 48.592 61.545 47.364 amean 39.448 45.578 36.753 amin 38.865 45.508 31.829 amax 40.118 45.645 39.342 emean 0.139 0.348 0.127 emin 0.075 0.346 0.002 emax 0.214 0.351 0.210 imean 13.755 7.125 8.082 imin 7.020 7.074 5.997 imax 18.921 7.148 10.008 excite_mean 0.282 0.370 0.191 fracstop 1.000 0.001 0.578 cjmean 2.955 2.950 2.988 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 125.2 339.6 182.2 kozaiamp 180.0 0.8 179.9