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: 02FW36
# Created Fri Apr 19 01:10:42 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 24 observations of 24
# Arc: 16.89y
# First observation: 2002/03/18
# Last observation: 2019/02/04
# Chi-squared of fit: 104.67 DOF: 42 RMS: 0.37
# Min/Max residuals: -0.80 1.10
# Exact a, adot, b, bdot, g, gdot:
1.815514E-05 2.356318E-02 3.856655E-07 -9.826140E-05 2.419176E-02 -5.639163E-04
# Covariance matrix:
1.6046E-13 -1.2743E-14 1.9314E-15 -1.6292E-16 2.5555E-13 1.3013E-14
-1.2743E-14 2.9085E-14 6.1426E-16 -1.5762E-16 7.1517E-14 7.6868E-14
1.9314E-15 6.1426E-16 9.9125E-14 -7.3166E-15 1.0746E-14 2.6551E-15
-1.6292E-16 -1.5762E-16 -7.3166E-15 1.3288E-15 -1.2716E-15 -5.2660E-16
2.5555E-13 7.1517E-14 1.0746E-14 -1.2716E-15 1.3882E-12 3.2341E-13
1.3013E-14 7.6868E-14 2.6551E-15 -5.2660E-16 3.2341E-13 2.2592E-13
# lat0 lon0 xBary yBary zBary JD0
2.386909 153.177183 -0.413446 0.037660 -0.905329 2452351.694173
# Heliocentric elements and errors
Epoch: 2452352.5000 = 2002/03/19
Mean Anomaly: 329.81317 +/- 0.159
Argument of Peri: 127.96270 +/- 0.167
Long of Asc Node: 57.28724 +/- 0.002
Inclination: 2.35039 +/- 0.000
Eccentricity: 0.02257959 +/- 0.0001
Semi-Major Axis: 43.08048546 +/- 0.0084
Time of Perihelion: 2461012.8283 +/- 53.3
Perihelion: 42.10774579 +/- 0.0099
Aphelion: 44.05322514 +/- 0.0102
Period (y) 282.7672 +/- 0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -37.85146254 +/- 0.0018
Ecliptic Y 18.68092702 +/- 0.0009
Ecliptic Z 1.72157938 +/- 0.0001
Ecliptic XDOT -0.00115524 +/- 0.0000
Ecliptic YDOT -0.00240949 +/- 0.0000
Ecliptic ZDOT -0.00001355 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.24541050 +/- 0.0017
Geocenter to KBO 41.33643653 +/- 0.0020
# Hcoef: 7.13
The following table shows the complete astrometric record for 02FW36. 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 (02FW36) followed by the observatory code and reference code for the source of the astrometry.
2002 03 18.19343 10 23 58.81 +12 33 53.6 22.4R 02FW36 695 Cf5084 2002 03 18.25235 10 23 58.58 +12 33 54.9 02FW36 695 Cf5084 2002 04 06.02137 10 22 47.81 +12 39 59.8 22.6R 02FW36 807 Ch1599 2002 04 06.11054 10 22 47.44 +12 40 01.4 02FW36 807 Ch1599 2002 04 08.99446 10 22 38.36 +12 40 45.1 21.5R 02FW36 807 Cf5084 2002 04 09.08322 10 22 38.08 +12 40 46.4 02FW36 807 Cf5084 2002 04 10.30588 10 22 34.41 +12 41 03.7 22.2R 02FW36 568 Cf5084 2002 04 10.39528 10 22 34.17 +12 41 05.0 02FW36 568 Cf5084 2002 04 11.27493 10 22 31.62 +12 41 17.4 02FW36 568 Cf5084 2003 03 06.22155 10 30 02.14 +11 58 51.0 22.5R 02FW36 662 Ci0083 2003 03 06.32635 10 30 01.68 +11 58 52.6 02FW36 662 Ci0083 2003 04 29.29964 10 26 57.96 +12 14 32.6 23.7R 02FW36 568 Ci0083 2003 04 29.37322 10 26 57.80 +12 14 32.9 02FW36 568 Ci0083 2003 04 30.29552 10 26 56.34 +12 14 38.0 02FW36 568 Ci0083 2004 03 20.22310 10 34 05.37 +11 34 24.2 23.0R 02FW36 662 Ck2152 2004 03 20.33223 10 34 04.90 +11 34 27.1 02FW36 662 Ck2152 2013 03 12.17896 11 20 14.31 +06 43 23.3 23.0R 02FW36 695 C~0uct 2013 03 12.23838 11 20 14.00 +06 43 24.9 02FW36 695 C~0uct 2015 03 23.17789 11 29 28.49 +05 41 35.4 23.3R 02FW36 695 C~1Q3C 2015 03 23.24208 11 29 28.20 +05 41 37.2 02FW36 695 C~1Q3C 2015 03 23.30126 11 29 27.94 +05 41 38.8 02FW36 695 C~1Q3C 2019 02 04.59943 11 52 36.52 +03 05 06.7 24.5g 02FW36 T09 C~7bAC 2019 02 04.63104 11 52 36.42 +03 05 07.3 25.1g 02FW36 T09 C~7bAC 2019 02 04.66250 11 52 36.33 +03 05 08.0 25.2g 02FW36 T09 C~7bAC
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 -0.58 0.00 0.12
2 0.0002 0.00 -0.22 0.00 0.09
3 0.0515 0.00 1.06 0.00 0.18
4 0.0518 0.00 -0.05 0.00 0.36
5 0.0597 0.00 -0.25 0.00 0.09
6 0.0599 0.00 -0.29 0.00 0.09
7 0.0633 0.00 -0.28 0.00 0.04
8 0.0635 0.00 0.19 0.00 0.09
9 0.0659 0.00 0.37 0.00 0.33
10 0.9665 0.00 -0.39 0.00 1.10
11 0.9668 0.00 0.03 0.00 -0.02
12 1.1146 0.00 0.30 0.00 -0.57
13 1.1148 0.00 -0.23 0.00 -0.69
14 1.1173 0.00 -0.49 0.00 -0.80
15 2.0069 0.00 0.45 0.00 -0.45
16 2.0072 0.00 0.40 0.00 -0.07
17 10.9842 0.00 0.35 0.00 -0.07
18 10.9844 0.00 -0.20 0.00 -0.16
19 13.0130 0.00 -0.23 0.00 0.12
20 13.0131 0.00 -0.25 0.00 0.15
21 13.0133 0.00 -0.14 0.00 0.12
22 16.8854 0.00 0.06 0.00 0.06
23 16.8855 0.00 0.06 0.00 -0.04
24 16.8856 0.00 0.19 0.00 -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.
02FW36 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.780 42.780 42.780 ecceobj 0.017 0.017 0.017 incobj 2.351 2.351 2.351 qmin 41.165 41.164 41.168 qmax 44.848 44.850 44.844 amean 42.924 42.924 42.924 amin 42.600 42.600 42.601 amax 43.255 43.251 43.257 emean 0.018 0.018 0.018 emin 0.001 0.001 0.000 emax 0.037 0.037 0.037 imean 1.131 1.131 1.131 imin 0.020 0.020 0.020 imax 1.869 1.869 1.869 excite_mean 0.029 0.029 0.029 fracstop 1.000 1.000 1.000 cjmean 3.088 3.088 3.088 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 170.8 170.9 171.2 kozaiamp 180.0 180.0 179.9