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: 03FJ127
# Created Fri Aug 29 01:08:27 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 24 observations of 24
# Arc: 21.10y
# First observation: 2003/03/30
# Last observation: 2024/05/04
# Chi-squared of fit: 47.10 DOF: 42 RMS: 0.25
# Min/Max residuals: -0.41 0.68
# Exact a, adot, b, bdot, g, gdot:
1.477046E-05 2.252636E-02 2.666360E-06 9.510216E-03 2.481679E-02 -4.593316E-03
# Covariance matrix:
1.2032E-13 -3.9013E-14 3.7728E-15 -1.4294E-14 -2.3637E-14 -5.9115E-14
-3.9013E-14 1.1346E-13 -1.3295E-14 4.8370E-14 3.3356E-14 2.0100E-13
3.7728E-15 -1.3295E-14 1.1068E-13 -1.1082E-14 -1.8093E-15 -2.3775E-14
-1.4294E-14 4.8370E-14 -1.1082E-14 2.1230E-14 1.3009E-14 8.6148E-14
-2.3637E-14 3.3356E-14 -1.8093E-15 1.3009E-14 1.6506E-13 5.0846E-14
-5.9115E-14 2.0100E-13 -2.3775E-14 8.6148E-14 5.0846E-14 3.5817E-13
# lat0 lon0 xBary yBary zBary JD0
1.889002 166.093182 -0.393772 0.030200 -0.915905 2452728.741603
# Heliocentric elements and errors
Epoch: 2452728.5000 = 2003/03/30
Mean Anomaly: 296.87532 +/- 0.011
Argument of Peri: 88.14612 +/- 0.016
Long of Asc Node: 162.24677 +/- 0.000
Inclination: 22.84630 +/- 0.000
Eccentricity: 0.18177802 +/- 0.0000
Semi-Major Axis: 43.51711689 +/- 0.0030
Time of Perihelion: 2471114.4165 +/- 9.4
Perihelion: 35.60666171 +/- 0.0027
Aphelion: 51.42757207 +/- 0.0037
Period (y) 287.0770 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.07918058 +/- 0.0006
Ecliptic Y 9.52128960 +/- 0.0002
Ecliptic Z 1.32839506 +/- 0.0000
Ecliptic XDOT -0.00007847 +/- 0.0000
Ecliptic YDOT -0.00254711 +/- 0.0000
Ecliptic ZDOT 0.00103211 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.21613109 +/- 0.0006
Geocenter to KBO 40.29545882 +/- 0.0007
# Hcoef: 7.20
The following table shows the complete astrometric record for 03FJ127. 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 (03FJ127) followed by the observatory code and reference code for the source of the astrometry.
2003 03 30.24086 11 11 45.56 +07 13 35.9 23.3R 03FJ127 695 Ch8427 2003 03 30.34010 11 11 45.12 +07 13 38.9 03FJ127 695 Ch8427 2003 03 31.31121 11 11 41.12 +07 14 08.0 03FJ127 695 Ch8427 2003 04 01.217355 11 11 37.37 +07 14 35.3 03FJ127 645 C~1ReC 2003 04 01.218184 11 11 37.37 +07 14 35.3 03FJ127 645 C~1ReC 2003 04 01.220672 11 11 37.36 +07 14 35.4 03FJ127 645 C~1ReC 2003 04 21.00066 11 10 26.25 +07 23 23.2 20.8R 03FJ127 304 Ch8427 2003 04 21.06039 11 10 26.08 +07 23 24.7 03FJ127 304 Ch8427 2003 05 31.30813 11 09 26.77 +07 31 36.7 23.4R 03FJ127 568 Ci1570 2003 06 01.29455 11 09 27.03 +07 31 37.5 03FJ127 568 Ci1570 2003 06 02.26688 11 09 27.41 +07 31 38.2 03FJ127 568 Ci1570 2003 12 18.54657 11 22 46.06 +06 26 42.8 23.2R 03FJ127 568 Ck9589 2003 12 18.64699 11 22 46.10 +06 26 43.8 03FJ127 568 Ck9589 2004 02 22.38330 11 20 08.33 +06 52 51.2 23.8R 03FJ127 695 Ck9589 2004 02 22.42483 11 20 08.15 +06 52 52.8 03FJ127 695 Ck9589 2023 03 21.42224 13 15 53.809 +06 08 20.05 22.9r 03FJ127 T09 C~83ID 2023 03 21.60881 13 15 52.967 +06 08 27.62 23.0r 03FJ127 T09 C~83ID 2023 06 11.00523 13 10 25.471 +06 38 21.29 23.0r 03FJ127 304 C~83ID 2023 06 11.10436 13 10 25.270 +06 38 21.04 23.1r 03FJ127 304 C~83ID 2023 06 23.12429 13 10 10.040 +06 36 48.45 23.0r 03FJ127 304 C~83ID 2024 04 12.17820 13 20 48.656 +06 16 06.40 23.0r 03FJ127 304 C~83ID 2024 04 12.19262 13 20 48.552 +06 16 06.77 23.0r 03FJ127 304 C~83ID 2024 05 04.16765 13 19 04.768 +06 26 28.70 23.1r 03FJ127 304 C~83ID 2024 05 04.19271 13 19 04.649 +06 26 29.20 23.1r 03FJ127 304 C~83ID
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 0.19 0.00 0.68
2 0.0003 0.00 -0.10 0.00 0.63
3 0.0029 0.00 0.16 0.00 -0.03
4 0.0054 0.00 -0.41 0.00 -0.24
5 0.0054 0.00 -0.36 0.00 -0.27
6 0.0054 0.00 -0.35 0.00 -0.24
7 0.0596 0.00 0.25 0.00 0.03
8 0.0597 0.00 0.48 0.00 0.17
9 0.1699 0.00 0.08 0.00 -0.20
10 0.1726 0.00 -0.12 0.00 -0.27
11 0.1753 0.00 0.25 0.00 0.11
12 0.7209 0.00 0.08 0.00 -0.30
13 0.7212 0.00 0.35 0.00 -0.06
14 0.9011 0.00 -0.34 0.00 -0.08
15 0.9013 0.00 -0.28 0.00 0.09
16 19.9759 0.00 -0.09 0.00 -0.08
17 19.9764 0.00 0.10 0.00 -0.03
18 20.1992 0.00 0.10 0.00 -0.03
19 20.1995 0.00 -0.10 0.00 0.08
20 20.2324 0.00 0.21 0.00 0.14
21 21.0375 0.00 0.40 0.00 0.06
22 21.0375 0.00 -0.09 0.00 -0.06
23 21.0977 0.00 -0.17 0.00 -0.02
24 21.0977 0.00 -0.26 0.00 -0.07
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.
03FJ127 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.120 43.120 43.120 ecceobj 0.180 0.180 0.180 incobj 22.943 22.943 22.943 qmin 34.966 34.946 35.062 qmax 52.132 52.182 51.963 amean 43.345 43.341 43.345 amin 42.979 42.972 42.975 amax 43.778 43.753 43.755 emean 0.172 0.172 0.170 emin 0.157 0.156 0.157 emax 0.192 0.193 0.189 imean 22.521 22.510 22.567 imin 21.849 21.814 21.940 imax 23.033 23.038 23.034 excite_mean 0.420 0.420 0.420 fracstop 1.000 1.000 1.000 cjmean 2.878 2.878 2.878 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 180.2 182.9 177.0 kozaiamp 179.9 180.0 180.0