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: 22LL15
# Created Sun Apr 27 01:11:30 2025
# Orbit generated from Bernstein formalism
# Fitting 15 observations of 15
# Arc: 1.27y
# First observation: 2022/06/02
# Last observation: 2023/09/10
Preliminary a, adot, b, bdot, g, gdot:
0.000001 0.023847 -0.000000 -0.000497 0.024231 0.000000
# Chi-squared of fit: 0.21 DOF: 24 RMS: 0.02
# Min/Max residuals: -0.04 0.04
# Exact a, adot, b, bdot, g, gdot:
1.547353E-05 2.367871E-02 -1.395464E-07 -5.025690E-04 2.411429E-02 1.589346E-03
# Covariance matrix:
2.5821E-13 -5.5474E-13 4.5379E-15 -2.1813E-13 9.7123E-13 2.9120E-10
-5.5474E-13 4.9102E-10 -2.1590E-12 8.8189E-11 -8.0983E-11 -1.1589E-07
4.5379E-15 -2.1590E-12 1.7894E-13 -5.2943E-13 3.8381E-13 5.1570E-10
-2.1813E-13 8.8189E-11 -5.2943E-13 1.6344E-11 -1.6012E-11 -2.1136E-08
9.7123E-13 -8.0983E-11 3.8381E-13 -1.6012E-11 2.2565E-11 2.1087E-08
2.9120E-10 -1.1589E-07 5.1570E-10 -2.1136E-08 2.1087E-08 2.7785E-05
# lat0 lon0 xBary yBary zBary JD0
0.956759 -72.286488 0.605820 0.013333 -0.814481 2459732.944521
# Heliocentric elements and errors
Epoch: 2459730.5000 = 2022/05/31
Mean Anomaly: 47.60302 +/- 95.697
Argument of Peri: 88.55461 +/- 119.239
Long of Asc Node: 144.96565 +/- 0.073
Inclination: 1.52162 +/- 0.002
Eccentricity: 0.06450769 +/- 0.1875
Semi-Major Axis: 44.10366336 +/- 1.2376
Time of Perihelion: 2445584.2135 +/- 28432.1
Perihelion: 41.25863794 +/- 8.3516
Aphelion: 46.94868878 +/- 8.3752
Period (y) 292.9006 +/- 12.33
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 12.29589348 +/- 0.0025
Ecliptic Y -40.45973152 +/- 0.0078
Ecliptic Z 0.69251495 +/- 0.0001
Ecliptic XDOT 0.00261787 +/- 0.0002
Ecliptic YDOT 0.00065419 +/- 0.0006
Ecliptic ZDOT -0.00005415 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.29253419 +/- 0.0075
Geocenter to KBO 41.46918067 +/- 0.0082
# Hcoef: 9.31
The following table shows the complete astrometric record for 22LL15. 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 (22LL15) followed by the observatory code and reference code for the source of the astrometry.
2022 06 02.44372 19 16 14.423 -21 19 05.19 25.5r 22LL15 266 C~6Ipa 2022 06 02.53086 19 16 14.079 -21 19 05.77 25.5r 22LL15 266 C~6Ipa 2022 06 02.61096 19 16 13.762 -21 19 06.29 25.5r 22LL15 266 C~6Ipa 2022 06 03.44086 19 16 10.541 -21 19 11.70 25.6r 22LL15 266 C~6Ipa 2022 06 03.52767 19 16 10.193 -21 19 12.29 25.6r 22LL15 266 C~6Ipa 2022 06 03.61505 19 16 09.842 -21 19 12.86 25.6r 22LL15 266 C~6Ipa 2022 06 29.45230 19 14 12.729 -21 22 37.63 25.4r 22LL15 266 C~6Ipa 2022 06 29.51532 19 14 12.411 -21 22 38.19 25.4r 22LL15 266 C~6Ipa 2022 06 29.57836 19 14 12.094 -21 22 38.73 25.4r 22LL15 266 C~6Ipa 2023 09 09.22891 19 15 03.386 -21 23 49.37 22LL15 266 C~8ecH 2023 09 09.32430 19 15 03.177 -21 23 49.87 22LL15 266 C~8ecH 2023 09 09.41985 19 15 02.971 -21 23 50.34 22LL15 266 C~8ecH 2023 09 10.22905 19 15 01.340 -21 23 54.53 22LL15 266 C~8ecH 2023 09 10.32490 19 15 01.139 -21 23 55.01 22LL15 266 C~8ecH 2023 09 10.42059 19 15 00.941 -21 23 55.47 22LL15 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 -0.04
2 0.0002 -4.84 0.01 0.05 -0.04
3 0.0005 -9.30 0.01 0.11 -0.04
4 0.0027 -54.63 -0.01 0.59 0.00
5 0.0030 -59.53 -0.01 0.64 0.00
6 0.0032 -64.47 -0.01 0.71 0.00
7 0.0739 -1713.41 -0.00 7.48 0.04
8 0.0741 -1717.89 -0.00 7.49 0.04
9 0.0743 -1722.35 0.01 7.51 0.04
10 1.2698 -1020.75 0.00 -153.81 0.01
11 1.2700 -1023.71 -0.02 -153.93 0.01
12 1.2703 -1026.62 -0.03 -154.03 0.01
13 1.2725 -1049.75 0.03 -155.27 -0.01
14 1.2728 -1052.60 0.01 -155.38 -0.01
15 1.2730 -1055.40 -0.00 -155.48 -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.
22LL15 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0