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: 22LR16
# Created Fri May 3 01:18:57 2024
# 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 0.022348 -0.000001 -0.001725 0.023642 0.000000
# Chi-squared of fit: 0.69 DOF: 30 RMS: 0.03
# Min/Max residuals: -0.05 0.06
# Exact a, adot, b, bdot, g, gdot:
1.465777E-05 2.217564E-02 -9.424362E-07 -1.742817E-03 2.352900E-02 1.638203E-03
# Covariance matrix:
2.5605E-13 -1.9383E-14 8.5759E-15 -2.8008E-13 7.8025E-13 1.1780E-10
-1.9383E-14 3.1792E-10 -5.0313E-12 1.3982E-10 -2.7632E-11 -5.7827E-08
8.5759E-15 -5.0313E-12 2.1011E-13 -2.3475E-12 4.9984E-13 9.2643E-10
-2.8008E-13 1.3982E-10 -2.3475E-12 6.2586E-11 -1.4151E-11 -2.5789E-08
7.8025E-13 -2.7632E-11 4.9984E-13 -1.4151E-11 7.3159E-12 5.8648E-09
1.1780E-10 -5.7827E-08 9.2643E-10 -2.5789E-08 5.8648E-09 1.0668E-05
# lat0 lon0 xBary yBary zBary JD0
1.306445 -72.608865 0.601227 0.018381 -0.817779 2459732.944521
# Heliocentric elements and errors
Epoch: 2459730.5000 = 2022/05/31
Mean Anomaly: 97.64008 +/- 39.298
Argument of Peri: 59.82948 +/- 37.162
Long of Asc Node: 122.60226 +/- 0.038
Inclination: 4.64147 +/- 0.011
Eccentricity: 0.05769909 +/- 0.1395
Semi-Major Axis: 42.85976691 +/- 0.7849
Time of Perihelion: 2431933.4458 +/- 11161.5
Perihelion: 40.38679750 +/- 6.0266
Aphelion: 45.33273631 +/- 6.0384
Period (y) 280.5969 +/- 7.71
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 12.38019491 +/- 0.0014
Ecliptic Y -41.50947399 +/- 0.0047
Ecliptic Z 0.96904443 +/- 0.0001
Ecliptic XDOT 0.00252250 +/- 0.0001
Ecliptic YDOT 0.00059398 +/- 0.0004
Ecliptic ZDOT -0.00019851 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.32718204 +/- 0.0045
Geocenter to KBO 42.50073867 +/- 0.0049
# Hcoef: 9.18
The following table shows the complete astrometric record for 22LR16. 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 (22LR16) followed by the observatory code and reference code for the source of the astrometry.
2022 06 02.44372 19 14 40.584 -21 00 46.04 26.0r 22LR16 266 C~6Ipc 2022 06 02.53086 19 14 40.243 -21 00 46.64 26.0r 22LR16 266 C~6Ipc 2022 06 02.61096 19 14 39.930 -21 00 47.17 26.0r 22LR16 266 C~6Ipc 2022 06 03.44086 19 14 36.746 -21 00 52.76 25.9r 22LR16 266 C~6Ipc 2022 06 03.52767 19 14 36.402 -21 00 53.37 25.9r 22LR16 266 C~6Ipc 2022 06 03.61505 19 14 36.055 -21 00 53.96 25.9r 22LR16 266 C~6Ipc 2022 06 29.45230 19 12 40.834 -21 04 25.43 26.1r 22LR16 266 C~6Ipc 2022 06 29.51813 19 12 40.509 -21 04 26.03 26.1r 22LR16 266 C~6Ipc 2022 06 29.58257 19 12 40.191 -21 04 26.61 26.1r 22LR16 266 C~6Ipc 2022 06 30.45132 19 12 35.970 -21 04 34.71 26.0r 22LR16 266 C~6Ipc 2022 06 30.51752 19 12 35.641 -21 04 35.32 26.0r 22LR16 266 C~6Ipc 2022 06 30.58389 19 12 35.313 -21 04 35.91 26.0r 22LR16 266 C~6Ipc 2023 09 09.22891 19 13 17.827 -21 11 21.94 24.7V 22LR16 266 C~7umS 2023 09 09.32430 19 13 17.625 -21 11 22.51 24.7V 22LR16 266 C~7umS 2023 09 09.41985 19 13 17.425 -21 11 23.06 24.7V 22LR16 266 C~7umS 2023 09 10.22905 19 13 15.839 -21 11 27.81 24.5V 22LR16 266 C~7umS 2023 09 10.32490 19 13 15.644 -21 11 28.37 24.5V 22LR16 266 C~7umS 2023 09 10.42059 19 13 15.453 -21 11 28.91 24.5V 22LR16 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 0.05 0.00 -0.05
2 0.0002 -4.81 0.03 0.01 -0.05
3 0.0005 -9.23 0.03 0.05 -0.04
4 0.0027 -54.16 -0.03 0.18 0.01
5 0.0030 -59.01 -0.04 0.18 0.01
6 0.0032 -63.91 -0.05 0.22 0.02
7 0.0739 -1690.78 -0.04 -6.73 0.06
8 0.0741 -1695.36 -0.02 -6.76 0.06
9 0.0743 -1699.85 -0.02 -6.78 0.05
10 0.0767 -1759.49 0.02 -7.48 -0.02
11 0.0769 -1764.13 0.02 -7.51 -0.03
12 0.0770 -1768.76 0.04 -7.53 -0.02
13 1.2698 -1229.17 -0.02 -484.56 -0.04
14 1.2700 -1232.04 -0.02 -484.77 -0.04
15 1.2703 -1234.89 -0.03 -484.96 -0.04
16 1.2725 -1257.49 0.03 -486.90 0.04
17 1.2728 -1260.27 0.02 -487.11 0.04
18 1.2730 -1262.98 0.02 -487.32 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.
22LR16 quality flag:1 Type: CLASSICAL REMOVED CLASSICAL axisobj 42.488 52.760 41.940 ecceobj 0.059 0.402 0.073 incobj 4.649 4.685 4.637 qmin 39.237 30.405 37.777 qmax 46.495 98.289 46.774 amean 42.733 57.189 42.140 amin 42.397 49.079 41.781 amax 43.081 65.071 42.503 emean 0.055 0.443 0.085 emin 0.033 0.370 0.060 emax 0.079 0.514 0.101 imean 3.382 2.743 4.019 imin 2.268 0.409 2.089 imax 4.604 4.028 5.897 excite_mean 0.081 0.446 0.111 fracstop 1.000 0.368 1.000 cjmean 3.079 2.993 3.065 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 182.0 176.1 179.9 kozaiamp 180.0 179.9 180.0