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: 22LO16
# Created Sat May 4 01:19:01 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:
0.000001 0.036200 0.000002 0.002412 0.029071 0.000000
# Chi-squared of fit: 1.58 DOF: 30 RMS: 0.05
# Min/Max residuals: -0.10 0.11
# Exact a, adot, b, bdot, g, gdot:
1.976302E-05 3.611602E-02 1.673766E-06 2.455529E-03 2.895200E-02 7.520770E-03
# Covariance matrix:
2.5677E-13 1.5636E-12 -1.5212E-14 4.0743E-13 1.1068E-12 1.3296E-10
1.5636E-12 4.2250E-10 -6.2599E-12 1.7776E-10 1.7842E-10 5.8525E-08
-1.5212E-14 -6.2599E-12 2.2318E-13 -2.7668E-12 -2.6133E-12 -8.7548E-10
4.0743E-13 1.7776E-10 -2.7668E-12 7.5811E-11 7.4128E-11 2.4881E-08
1.1068E-12 1.7842E-10 -2.6133E-12 7.4128E-11 7.6720E-11 2.4401E-08
1.3296E-10 5.8525E-08 -8.7548E-10 2.4881E-08 2.4401E-08 8.1927E-06
# lat0 lon0 xBary yBary zBary JD0
0.773137 -73.165073 0.593258 0.010846 -0.823712 2459732.944521
# Heliocentric elements and errors
Epoch: 2459730.5000 = 2022/05/31
Mean Anomaly: 10.07415 +/- 3.029
Argument of Peri: 338.27131 +/- 10.700
Long of Asc Node: 274.91396 +/- 0.022
Inclination: 3.96077 +/- 0.008
Eccentricity: 0.49145135 +/- 0.0637
Semi-Major Axis: 65.91812022 +/- 5.6124
Time of Perihelion: 2454260.1951 +/- 1488.7
Perihelion: 33.52257105 +/- 5.0772
Aphelion: 98.31366940 +/- 9.3648
Period (y) 535.1992 +/- 68.35
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 9.68275814 +/- 0.0030
Ecliptic Y -34.01876697 +/- 0.0100
Ecliptic Z 0.46619413 +/- 0.0002
Ecliptic XDOT 0.00347574 +/- 0.0001
Ecliptic YDOT 0.00032047 +/- 0.0003
Ecliptic ZDOT 0.00024167 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 35.37300734 +/- 0.0097
Geocenter to KBO 34.53993097 +/- 0.0104
# Hcoef: 10.04
The following table shows the complete astrometric record for 22LO16. 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 (22LO16) followed by the observatory code and reference code for the source of the astrometry.
2022 06 02.44372 19 12 35.715 -21 36 42.27 26.1r 22LO16 266 C~6Ipc 2022 06 02.53086 19 12 35.320 -21 36 42.76 26.1r 22LO16 266 C~6Ipc 2022 06 02.61096 19 12 34.957 -21 36 43.19 26.1r 22LO16 266 C~6Ipc 2022 06 03.44086 19 12 31.275 -21 36 47.75 26.3r 22LO16 266 C~6Ipc 2022 06 03.52767 19 12 30.876 -21 36 48.25 26.3r 22LO16 266 C~6Ipc 2022 06 03.61505 19 12 30.474 -21 36 48.74 26.3r 22LO16 266 C~6Ipc 2022 06 29.45230 19 10 16.009 -21 39 49.54 25.8r 22LO16 266 C~6Ipc 2022 06 29.52231 19 10 15.603 -21 39 50.09 25.8r 22LO16 266 C~6Ipc 2022 06 29.59237 19 10 15.198 -21 39 50.63 25.8r 22LO16 266 C~6Ipc 2022 06 30.45132 19 10 10.317 -21 39 57.56 26.0r 22LO16 266 C~6Ipc 2022 06 30.53296 19 10 09.842 -21 39 58.20 26.0r 22LO16 266 C~6Ipc 2022 06 30.61476 19 10 09.369 -21 39 58.83 26.0r 22LO16 266 C~6Ipc 2023 09 09.22891 19 13 26.490 -21 25 00.83 24.5V 22LO16 266 C~7umS 2023 09 09.32430 19 13 26.273 -21 25 01.20 24.5V 22LO16 266 C~7umS 2023 09 09.41985 19 13 26.060 -21 25 01.53 24.5V 22LO16 266 C~7umS 2023 09 10.22905 19 13 24.365 -21 25 04.71 24.5V 22LO16 266 C~7umS 2023 09 10.32490 19 13 24.158 -21 25 05.06 24.5V 22LO16 266 C~7umS 2023 09 10.42059 19 13 23.955 -21 25 05.39 24.5V 22LO16 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 -0.01 0.00 -0.07
2 0.0002 -5.53 -0.02 0.20 -0.06
3 0.0005 -10.60 -0.02 0.40 -0.06
4 0.0027 -62.12 0.02 2.23 -0.01
5 0.0030 -67.70 0.01 2.42 -0.01
6 0.0032 -73.33 0.02 2.63 -0.01
7 0.0739 -1956.27 -0.03 51.89 0.06
8 0.0741 -1961.96 -0.03 52.02 0.06
9 0.0743 -1967.63 -0.02 52.16 0.06
10 0.0767 -2036.02 0.02 53.46 0.02
11 0.0769 -2042.67 0.02 53.61 0.02
12 0.0771 -2049.29 0.03 53.78 0.02
13 1.2698 790.43 0.11 607.70 0.03
14 1.2700 787.38 0.10 607.72 0.03
15 1.2703 784.39 0.10 607.76 0.03
16 1.2725 760.51 -0.10 607.57 -0.03
17 1.2728 757.60 -0.10 607.58 -0.03
18 1.2730 754.74 -0.10 607.61 -0.04
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.
22LO16 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