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: 22LJ15
# Created Tue Apr 1 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:
0.000000 0.021428 -0.000001 -0.001146 0.022818 0.000000
# Chi-squared of fit: 0.25 DOF: 30 RMS: 0.02
# Min/Max residuals: -0.04 0.04
# Exact a, adot, b, bdot, g, gdot:
1.476873E-05 2.126924E-02 -7.119280E-07 -1.157101E-03 2.271315E-02 1.112861E-03
# Covariance matrix:
2.5654E-13 -3.2663E-13 8.9261E-15 -2.7944E-13 8.0101E-13 1.7431E-10
-3.2663E-13 5.1547E-10 -5.5448E-12 1.5356E-10 -4.3257E-11 -9.4496E-08
8.9261E-15 -5.5448E-12 1.8967E-13 -1.7715E-12 5.0608E-13 1.0239E-09
-2.7944E-13 1.5356E-10 -1.7715E-12 4.6370E-11 -1.4214E-11 -2.8389E-08
8.0101E-13 -4.3257E-11 5.0608E-13 -1.4214E-11 8.4625E-12 8.7618E-09
1.7431E-10 -9.4496E-08 1.0239E-09 -2.8389E-08 8.7618E-09 1.7473E-05
# lat0 lon0 xBary yBary zBary JD0
1.027540 -72.903555 0.597012 0.014455 -0.820940 2459732.944521
# Heliocentric elements and errors
Epoch: 2459730.5000 = 2022/05/31
Mean Anomaly: 79.83166 +/- 8.183
Argument of Peri: 77.96706 +/- 28.293
Long of Asc Node: 124.39306 +/- 0.054
Inclination: 3.25228 +/- 0.009
Eccentricity: 0.03624674 +/- 0.1958
Semi-Major Axis: 45.08711841 +/- 0.7615
Time of Perihelion: 2435208.8431 +/- 2435.5
Perihelion: 43.45285744 +/- 8.8581
Aphelion: 46.72137938 +/- 8.8629
Period (y) 302.7519 +/- 7.67
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 12.62147051 +/- 0.0016
Ecliptic Y -43.03720429 +/- 0.0054
Ecliptic Z 0.78958732 +/- 0.0001
Ecliptic XDOT 0.00249242 +/- 0.0001
Ecliptic YDOT 0.00063212 +/- 0.0005
Ecliptic ZDOT -0.00013716 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.85672657 +/- 0.0052
Geocenter to KBO 44.02735805 +/- 0.0056
# Hcoef: 8.80
The following table shows the complete astrometric record for 22LJ15. 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 (22LJ15) followed by the observatory code and reference code for the source of the astrometry.
2022 06 02.44372 19 13 34.441 -21 19 36.16 25.6r 22LJ15 266 C~6Ipa 2022 06 02.53086 19 13 34.110 -21 19 36.72 25.6r 22LJ15 266 C~6Ipa 2022 06 02.61096 19 13 33.805 -21 19 37.23 25.6r 22LJ15 266 C~6Ipa 2022 06 03.44086 19 13 30.710 -21 19 42.56 25.1r 22LJ15 266 C~6Ipa 2022 06 03.52767 19 13 30.375 -21 19 43.14 25.1r 22LJ15 266 C~6Ipa 2022 06 03.61505 19 13 30.038 -21 19 43.70 25.1r 22LJ15 266 C~6Ipa 2022 06 29.45230 19 11 38.105 -21 23 02.11 25.0r 22LJ15 266 C~6Ipa 2022 06 29.51953 19 11 37.782 -21 23 02.68 25.0r 22LJ15 266 C~6Ipa 2022 06 29.58817 19 11 37.454 -21 23 03.25 25.0r 22LJ15 266 C~6Ipa 2022 06 30.45132 19 11 33.386 -21 23 10.62 25.2r 22LJ15 266 C~6Ipa 2022 06 30.52313 19 11 33.040 -21 23 11.23 25.2r 22LJ15 266 C~6Ipa 2022 06 30.59513 19 11 32.695 -21 23 11.83 25.2r 22LJ15 266 C~6Ipa 2023 09 09.22891 19 12 10.956 -21 27 30.55 22LJ15 266 C~8ecH 2023 09 09.32430 19 12 10.762 -21 27 31.04 22LJ15 266 C~8ecH 2023 09 09.41985 19 12 10.571 -21 27 31.51 22LJ15 266 C~8ecH 2023 09 10.22905 19 12 09.044 -21 27 35.59 22LJ15 266 C~8ecH 2023 09 10.32490 19 12 08.857 -21 27 36.06 22LJ15 266 C~8ecH 2023 09 10.42059 19 12 08.674 -21 27 36.52 22LJ15 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 -0.02
2 0.0002 -4.66 0.00 0.03 -0.01
3 0.0005 -8.95 -0.00 0.05 -0.02
4 0.0027 -52.52 0.00 0.19 -0.00
5 0.0030 -57.24 -0.01 0.20 -0.01
6 0.0032 -61.98 -0.00 0.24 -0.01
7 0.0739 -1638.25 -0.03 -2.82 -0.01
8 0.0741 -1642.80 -0.03 -2.83 -0.01
9 0.0743 -1647.42 -0.02 -2.84 -0.01
10 0.0767 -1704.72 0.02 -3.20 0.03
11 0.0769 -1709.59 0.02 -3.21 0.03
12 0.0771 -1714.44 0.03 -3.22 0.03
13 1.2698 -1215.98 -0.01 -325.61 -0.03
14 1.2700 -1218.73 -0.01 -325.76 -0.03
15 1.2703 -1221.43 -0.00 -325.90 -0.04
16 1.2725 -1243.09 0.01 -327.32 0.03
17 1.2728 -1245.74 0.00 -327.47 0.04
18 1.2730 -1248.33 0.02 -327.61 0.03
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.
22LJ15 quality flag:1 Type: CLASSICAL REMOVED CLASSICAL axisobj 44.688 64.060 44.340 ecceobj 0.035 0.517 0.051 incobj 3.257 3.287 3.251 qmin 42.513 30.498 41.396 qmax 47.500 103.648 47.941 amean 44.936 62.852 44.553 amin 44.590 58.414 44.195 amax 45.294 67.347 44.931 emean 0.035 0.506 0.052 emin 0.022 0.471 0.037 emax 0.049 0.539 0.068 imean 2.002 2.710 2.115 imin 1.531 1.783 1.551 imax 2.503 3.585 2.716 excite_mean 0.050 0.508 0.064 fracstop 1.000 0.011 1.000 cjmean 3.110 2.967 3.103 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 188.9 131.1 174.3 kozaiamp 180.0 38.9 179.9