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: 22FN12
# Created Tue May 7 01:18:05 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 18 observations of 18
# Arc: 14.00y
# First observation: 2009/03/27
# Last observation: 2023/03/28
# Chi-squared of fit: 44.14 DOF: 30 RMS: 0.28
# Min/Max residuals: -0.49 0.68
# Exact a, adot, b, bdot, g, gdot:
1.441670E-05 2.246289E-02 -1.276933E-06 2.772947E-04 2.368379E-02 -4.576083E-04
# Covariance matrix:
7.3381E-13 -1.2178E-13 1.1395E-15 -8.4953E-16 -4.7505E-14 -2.1439E-13
-1.2178E-13 1.2676E-13 -1.0172E-15 1.5159E-15 3.6667E-13 3.8705E-13
1.1395E-15 -1.0172E-15 6.4209E-13 -5.3298E-14 -1.3714E-15 -3.1984E-15
-8.4953E-16 1.5159E-15 -5.3298E-14 5.0775E-15 4.5780E-15 4.8213E-15
-4.7505E-14 3.6667E-13 -1.3714E-15 4.5780E-15 1.5791E-12 1.1764E-12
-2.1439E-13 3.8705E-13 -3.1984E-15 4.8213E-15 1.1764E-12 1.2311E-12
# lat0 lon0 xBary yBary zBary JD0
1.078674 -174.246864 -0.012775 0.018829 -0.999805 2454917.916940
# Heliocentric elements and errors
Epoch: 2454918.5000 = 2009/03/28
Mean Anomaly: 234.06257 +/- 0.283
Argument of Peri: 184.60414 +/- 0.267
Long of Asc Node: 129.64177 +/- 0.008
Inclination: 1.26894 +/- 0.000
Eccentricity: 0.02775817 +/- 0.0001
Semi-Major Axis: 42.50716326 +/- 0.0077
Time of Perihelion: 2490329.9696 +/- 81.5
Perihelion: 41.32724215 +/- 0.0079
Aphelion: 43.68708437 +/- 0.0083
Period (y) 277.1414 +/- 0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -42.99387769 +/- 0.0022
Ecliptic Y -4.34958164 +/- 0.0002
Ecliptic Z 0.79482219 +/- 0.0001
Ecliptic XDOT 0.00031872 +/- 0.0000
Ecliptic YDOT -0.00257470 +/- 0.0000
Ecliptic ZDOT 0.00003095 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.22065857 +/- 0.0022
Geocenter to KBO 42.22302627 +/- 0.0022
# Hcoef: 7.60
The following table shows the complete astrometric record for 22FN12. 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 (22FN12) followed by the observatory code and reference code for the source of the astrometry.
2009 03 27.416174 12 22 50.05 -01 17 41.0 23.7r 22FN12 T09 C~7ztD 2009 03 27.535573 12 22 49.50 -01 17 37.6 23.5r 22FN12 T09 C~7ztD 2019 04 10.371919 13 09 50.36 -06 06 08.9 24.2g 22FN12 T09 C~7ztD 2019 04 10.414077 13 09 50.16 -06 06 07.8 22FN12 T09 C~7ztD 2019 04 10.438685 13 09 50.04 -06 06 07.2 24.3g 22FN12 T09 C~7ztD 2019 06 03.341223 13 06 33.20 -05 46 38.9 23.2i 22FN12 T09 C~7ztD 2019 06 03.346108 13 06 33.19 -05 46 38.8 22FN12 T09 C~7ztD 2019 06 03.360821 13 06 33.16 -05 46 38.5 23.3i 22FN12 T09 C~7ztD 2019 06 03.363261 13 06 33.15 -05 46 38.6 22FN12 T09 C~7ztD 2022 03 26.14496 13 25 32.72 -07 39 04.6 24.1R 22FN12 W93 C~5bqo 2022 03 26.18023 13 25 32.60 -07 39 03.7 22FN12 W93 C~5bqo 2022 03 26.21168 13 25 32.42 -07 39 02.4 22FN12 W93 C~5bqo 2022 03 28.14190 13 25 24.23 -07 38 12.8 22FN12 W93 C~5bqo 2022 03 28.17563 13 25 24.09 -07 38 11.9 22FN12 W93 C~5bqo 2022 03 28.21163 13 25 23.97 -07 38 11.5 23.3R 22FN12 W93 C~5bqo 2023 03 28.13990 13 30 18.74 -08 06 38.0 24.0R 22FN12 W93 C~7ztD 2023 03 28.18352 13 30 18.56 -08 06 36.7 24.0R 22FN12 W93 C~7ztD 2023 03 28.22185 13 30 18.40 -08 06 36.2 23.8R 22FN12 W93 C~7ztD
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 0.23 0.00 0.23
2 0.0003 0.00 -0.04 0.00 0.23
3 10.0368 0.00 0.12 0.00 -0.14
4 10.0370 0.00 -0.03 0.00 -0.18
5 10.0370 0.00 -0.16 0.00 -0.25
6 10.1846 0.00 -0.14 0.00 -0.31
7 10.1846 0.00 -0.12 0.00 -0.27
8 10.1847 0.00 -0.06 0.00 -0.15
9 10.1847 0.00 -0.13 0.00 -0.28
10 12.9958 0.00 0.03 0.00 -0.20
11 12.9959 0.00 0.49 0.00 -0.20
12 12.9960 0.00 -0.19 0.00 0.29
13 13.0013 0.00 -0.49 0.00 0.11
14 13.0014 0.00 -0.40 0.00 0.14
15 13.0015 0.00 0.14 0.00 -0.40
16 14.0006 0.00 0.18 0.00 0.49
17 14.0007 0.00 0.29 0.00 0.68
18 14.0008 0.00 0.36 0.00 0.20
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.
22FN12 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.373 42.373 42.373 ecceobj 0.028 0.028 0.028 incobj 1.270 1.270 1.270 qmin 40.405 40.410 40.405 qmax 44.976 44.981 44.967 amean 42.610 42.610 42.610 amin 42.289 42.290 42.288 amax 42.951 42.951 42.951 emean 0.030 0.030 0.030 emin 0.006 0.006 0.006 emax 0.047 0.048 0.047 imean 2.017 2.017 2.017 imin 0.622 0.622 0.622 imax 2.953 2.954 2.953 excite_mean 0.047 0.047 0.047 fracstop 1.000 1.000 1.000 cjmean 3.082 3.082 3.082 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 185.4 185.6 185.5 kozaiamp 180.0 179.9 179.9