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: 22LE16
# Created Sat Feb 22 02:11:30 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 0.035756 0.000006 0.006725 0.031309 0.000000
# Chi-squared of fit: 0.16 DOF: 30 RMS: 0.02
# Min/Max residuals: -0.03 0.03
# Exact a, adot, b, bdot, g, gdot:
1.814261E-05 3.556237E-02 3.489038E-06 6.841421E-03 3.114318E-02 6.465165E-03
# Covariance matrix:
2.5482E-13 6.6772E-13 -6.3838E-15 1.7007E-13 7.5989E-13 1.9152E-11
6.6772E-13 1.2127E-11 -9.4602E-13 2.6988E-11 1.1373E-11 3.0886E-09
-6.3838E-15 -9.4602E-13 2.4596E-13 -3.4379E-12 -8.9263E-13 -3.8133E-10
1.7007E-13 2.6988E-11 -3.4379E-12 9.5502E-11 2.5462E-11 1.0908E-08
7.5989E-13 1.1373E-11 -8.9263E-13 2.5462E-11 1.0890E-11 2.9139E-09
1.9152E-11 3.0886E-09 -3.8133E-10 1.0908E-08 2.9139E-09 1.2491E-06
# lat0 lon0 xBary yBary zBary JD0
0.346720 -72.454156 0.603433 0.004671 -0.816346 2459732.944521
# Heliocentric elements and errors
Epoch: 2459730.5000 = 2022/05/31
Mean Anomaly: 33.92133 +/- 2.461
Argument of Peri: 309.37541 +/- 5.165
Long of Asc Node: 284.74589 +/- 0.001
Inclination: 10.85374 +/- 0.009
Eccentricity: 0.22613440 +/- 0.0285
Semi-Major Axis: 39.49803023 +/- 0.5770
Time of Perihelion: 2451187.0768 +/- 590.9
Perihelion: 30.56616684 +/- 1.2119
Aphelion: 48.42989362 +/- 1.3304
Period (y) 248.2398 +/- 5.44
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 9.36019124 +/- 0.0010
Ecliptic Y -31.57746611 +/- 0.0032
Ecliptic Z 0.19449607 +/- 0.0000
Ecliptic XDOT 0.00315289 +/- 0.0000
Ecliptic YDOT 0.00041306 +/- 0.0001
Ecliptic ZDOT 0.00060476 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 32.93611050 +/- 0.0031
Geocenter to KBO 32.10975850 +/- 0.0034
# Hcoef: 9.74
The following table shows the complete astrometric record for 22LE16. 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 (22LE16) followed by the observatory code and reference code for the source of the astrometry.
2022 06 02.44372 19 15 51.914 -21 56 41.03 24.9r 22LE16 266 C~6Ipb 2022 06 02.53086 19 15 51.482 -21 56 41.44 24.9r 22LE16 266 C~6Ipb 2022 06 02.61096 19 15 51.083 -21 56 41.79 24.9r 22LE16 266 C~6Ipb 2022 06 03.44086 19 15 47.036 -21 56 45.59 24.9r 22LE16 266 C~6Ipb 2022 06 03.52767 19 15 46.598 -21 56 46.01 24.9r 22LE16 266 C~6Ipb 2022 06 03.61505 19 15 46.157 -21 56 46.40 24.9r 22LE16 266 C~6Ipb 2022 06 29.45230 19 13 18.184 -21 59 22.46 24.6r 22LE16 266 C~6Ipb 2022 06 29.51813 19 13 17.763 -21 59 22.91 24.6r 22LE16 266 C~6Ipb 2022 06 29.58257 19 13 17.352 -21 59 23.34 24.6r 22LE16 266 C~6Ipb 2022 06 30.45132 19 13 11.901 -21 59 29.50 24.9r 22LE16 266 C~6Ipb 2022 06 30.51752 19 13 11.476 -21 59 29.95 24.9r 22LE16 266 C~6Ipb 2022 06 30.58389 19 13 11.051 -21 59 30.40 24.9r 22LE16 266 C~6Ipb 2023 09 09.22891 19 15 34.357 -21 27 46.50 22LE16 266 C~8ecH 2023 09 09.32430 19 15 34.105 -21 27 46.70 22LE16 266 C~8ecH 2023 09 09.41985 19 15 33.855 -21 27 46.87 22LE16 266 C~8ecH 2023 09 10.22905 19 15 31.879 -21 27 48.55 22LE16 266 C~8ecH 2023 09 10.32490 19 15 31.636 -21 27 48.73 22LE16 266 C~8ecH 2023 09 10.42059 19 15 31.397 -21 27 48.88 22LE16 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 -0.02 0.00 -0.00
2 0.0002 -6.01 -0.01 0.37 -0.00
3 0.0005 -11.56 -0.01 0.74 -0.00
4 0.0027 -67.89 0.01 4.25 0.00
5 0.0030 -73.99 0.01 4.62 0.01
6 0.0032 -80.12 0.02 5.02 0.01
7 0.0739 -2141.77 0.02 111.93 0.03
8 0.0741 -2147.64 0.02 112.22 0.03
9 0.0743 -2153.36 0.02 112.51 0.03
10 0.0767 -2229.36 -0.01 115.88 -0.03
11 0.0769 -2235.29 -0.02 116.17 -0.03
12 0.0770 -2241.21 -0.02 116.46 -0.03
13 1.2698 -18.80 -0.02 1751.64 0.00
14 1.2700 -22.31 -0.01 1751.90 0.00
15 1.2703 -25.80 -0.02 1752.18 0.00
16 1.2725 -53.37 0.02 1754.07 -0.00
17 1.2728 -56.75 0.02 1754.33 0.00
18 1.2730 -60.08 0.01 1754.61 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.
22LE16 quality flag:1 Type: 3:2E CENTAURR SCATNEAR axisobj 39.072 43.119 36.392 ecceobj 0.220 0.327 0.120 incobj 10.879 10.909 10.847 qmin 28.000 28.854 31.164 qmax 51.455 59.423 42.306 amean 39.455 43.634 36.491 amin 39.026 42.650 35.974 amax 39.975 44.577 37.016 emean 0.246 0.327 0.103 emin 0.195 0.305 0.045 emax 0.289 0.340 0.147 imean 11.154 13.134 16.281 imin 8.233 12.457 12.397 imax 13.961 13.910 19.293 excite_mean 0.315 0.398 0.300 fracstop 1.000 0.007 1.000 cjmean 2.937 2.905 2.926 libcent 0 180.5 -180.0 -180.0 libamp 0 70.4 -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 261.5 319.6 189.1 kozaiamp 53.6 10.0 180.0