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: 11CW119 # Created Sun Dec 22 02:09:14 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 18 observations of 18 # Arc: 20.12y # First observation: 2004/01/28 # Last observation: 2024/03/13 # Chi-squared of fit: 17.92 DOF: 30 RMS: 0.18 # Min/Max residuals: -0.41 0.49 # Exact a, adot, b, bdot, g, gdot: 1.969106E-05 3.738077E-02 6.308107E-06 1.146209E-02 3.077236E-02 -1.029071E-03 # Covariance matrix: 4.6011E-13 -7.5842E-14 6.0341E-14 -1.5902E-14 -8.9427E-14 -5.4884E-14 -7.5842E-14 1.9266E-14 -1.6162E-14 4.1743E-15 7.7176E-14 1.4179E-14 6.0341E-14 -1.6162E-14 2.8583E-13 -2.6730E-14 -3.2282E-15 -1.7685E-14 -1.5902E-14 4.1743E-15 -2.6730E-14 3.8634E-15 -1.9653E-15 4.7254E-15 -8.9427E-14 7.7176E-14 -3.2282E-15 -1.9653E-15 1.7690E-12 -1.4343E-14 -5.4884E-14 1.4179E-14 -1.7685E-14 4.7254E-15 -1.4343E-14 1.6483E-14 # lat0 lon0 xBary yBary zBary JD0 -10.645214 127.459389 -0.002454 -0.181074 -0.963678 2453032.825677 # Heliocentric elements and errors Epoch: 2453032.5000 = 2004/01/28 Mean Anomaly: 357.75874 +/- 42.049 Argument of Peri: 333.39527 +/- 0.000 Long of Asc Node: 157.84205 +/- 0.000 Inclination: 19.82846 +/- 0.000 Eccentricity: 0.37551814 +/- 0.0006 Semi-Major Axis: 53.52547199 +/- 0.0092 Time of Perihelion: 2453922.9908 +/- 16706.8 Perihelion: 33.42568632 +/- 0.0310 Aphelion: 73.62525767 +/- 0.0330 Period (y) 391.6057 +/- 0.10 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -20.02668513 +/- 0.0013 Ecliptic Y 26.13058623 +/- 0.0018 Ecliptic Z -6.00280855 +/- 0.0004 Ecliptic XDOT -0.00270377 +/- 0.0000 Ecliptic YDOT -0.00195116 +/- 0.0000 Ecliptic ZDOT 0.00101931 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.46506342 +/- 0.0016 Geocenter to KBO 32.49674858 +/- 0.0023 # Hcoef: 7.41
The following table shows the complete astrometric record for 11CW119. 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 (11CW119) followed by the observatory code and reference code for the source of the astrometry.
2004 01 28.324934 08 28 33.33 +08 05 45.5 22.5V 11CW119 645 C~2POP 2004 01 28.325763 08 28 33.33 +08 05 45.6 21.9V 11CW119 645 C~2POP 2004 01 28.328251 08 28 33.33 +08 05 45.5 23.7V 11CW119 645 C~2POP 2011 01 30.36706 09 31 42.669 +08 35 20.80 22.7w 11CW119 F51 C~1w3m 2011 02 02.50724 09 31 25.381 +08 37 03.40 23.2w 11CW119 F51 C~1w3m 2011 02 02.52241 09 31 25.313 +08 37 03.99 23.3w 11CW119 F51 C~1w3m 2011 02 02.53833 09 31 25.213 +08 37 04.02 23.3w 11CW119 F51 C~1w3m 2012 02 14.35247 09 39 20.537 +08 44 44.25 22.6w 11CW119 F51 C~1w3m 2012 02 14.36670 09 39 20.498 +08 44 44.64 22.6w 11CW119 F51 C~1w3m 2012 02 14.38088 09 39 20.417 +08 44 45.15 22.9w 11CW119 F51 C~1w3m 2012 02 14.39507 09 39 20.357 +08 44 45.50 22.9w 11CW119 F51 C~1w3m 2013 02 21.45461 09 47 35.269 +08 49 43.81 21.4i 11CW119 F51 C~1w3m 2013 03 04.31210 09 46 37.705 +08 56 27.35 22.6w 11CW119 F51 C~1w3m 2013 03 04.32634 09 46 37.633 +08 56 27.85 23.0w 11CW119 F51 C~1w3m 2014 01 25.42074 09 58 56.347 +08 33 01.46 22.6w 11CW119 F51 C~1w3m 2014 03 20.30310 09 54 17.445 +09 05 23.18 22.7w 11CW119 F51 C~1w3m 2024 03 13.294230 11 20 03.067 +08 17 32.59 23.0G 11CW119 G37 C~7wL1 2024 03 13.336920 11 20 02.829 +08 17 34.23 11CW119 G37 C~7wL1
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 -0.12 0.00 -0.06
2 0.0000 0.00 -0.05 0.00 0.02
3 0.0000 0.00 0.17 0.00 -0.15
4 7.0063 0.00 0.08 0.00 0.22
5 7.0149 0.00 -0.29 0.00 0.11
6 7.0149 0.00 -0.02 0.00 0.20
7 7.0150 0.00 -0.18 0.00 -0.30
8 8.0466 0.00 -0.41 0.00 0.10
9 8.0467 0.00 0.21 0.00 -0.02
10 8.0467 0.00 0.19 0.00 -0.03
11 8.0467 0.00 0.49 0.00 -0.19
12 9.0681 0.00 0.19 0.00 0.16
13 9.0978 0.00 -0.07 0.00 -0.04
14 9.0979 0.00 -0.04 0.00 -0.06
15 9.9934 0.00 0.00 0.00 0.07
16 10.1409 0.00 -0.18 0.00 0.11
17 20.1231 0.00 0.12 0.00 -0.07
18 20.1232 0.00 -0.12 0.00 -0.09
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.
11CW119 quality flag:3 Type: 7:3EEEE 7:3EEEE 7:3EEEE Type: 7:3EEII 7:3EEII 7:3EEII axisobj 53.117 53.117 53.117 ecceobj 0.370 0.370 0.370 incobj 19.883 19.883 19.883 qmin 32.381 32.381 32.381 qmax 74.431 74.431 74.431 amean 52.968 52.968 52.968 amin 52.398 52.398 52.398 amax 53.699 53.699 53.699 emean 0.328 0.328 0.328 emin 0.179 0.179 0.179 emax 0.387 0.387 0.387 imean 20.857 20.857 20.857 imin 18.046 18.046 18.046 imax 26.541 26.541 26.541 excite_mean 0.489 0.489 0.489 fracstop 1.000 1.000 1.000 cjmean 2.903 2.903 2.903 libcent 0 147.3 147.0 147.7 libamp 0 67.8 68.1 67.4 libcent 1 204.3 204.3 204.4 libamp 1 103.0 103.0 103.0 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 100.4 100.5 100.4 kozaiamp 180.0 180.0 180.0