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: 11WW188 # Created Wed Jul 17 01:09:28 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 43 observations of 43 # Arc: 12.30y # First observation: 2011/11/25 # Last observation: 2024/03/13 # Chi-squared of fit: 37.29 DOF: 80 RMS: 0.16 # Min/Max residuals: -0.33 0.38 # Exact a, adot, b, bdot, g, gdot: 1.820785E-05 3.324034E-02 4.261775E-06 6.296305E-03 2.827977E-02 1.972906E-03 # Covariance matrix: 1.0642E-13 -1.4732E-14 -4.4743E-15 -3.0190E-15 6.8106E-14 -3.8041E-14 -1.4732E-14 6.0262E-14 -1.0405E-14 1.1721E-14 3.7192E-14 1.6062E-13 -4.4743E-15 -1.0405E-14 4.7017E-14 -8.4034E-15 -1.4141E-14 -2.8154E-14 -3.0190E-15 1.1721E-14 -8.4034E-15 6.2016E-15 6.1536E-15 3.3612E-14 6.8106E-14 3.7192E-14 -1.4141E-14 6.1536E-15 1.1376E-13 8.8365E-14 -3.8041E-14 1.6062E-13 -2.8154E-14 3.3612E-14 8.8365E-14 4.5982E-13 # lat0 lon0 xBary yBary zBary JD0 24.248625 120.671585 0.832223 0.216104 -0.479712 2455891.130396 # Heliocentric elements and errors Epoch: 2455890.5000 = 2011/11/25 Mean Anomaly: 4.45060 +/- 0.002 Argument of Peri: 57.38207 +/- 0.005 Long of Asc Node: 55.42598 +/- 0.000 Inclination: 26.28346 +/- 0.000 Eccentricity: 0.30660874 +/- 0.0000 Semi-Major Axis: 51.56020243 +/- 0.0036 Time of Perihelion: 2454218.6934 +/- 0.9 Perihelion: 35.75139362 +/- 0.0033 Aphelion: 67.36901124 +/- 0.0052 Period (y) 370.2373 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -15.99645503 +/- 0.0002 Ecliptic Y 28.60861406 +/- 0.0003 Ecliptic Z 14.52275380 +/- 0.0002 Ecliptic XDOT -0.00273297 +/- 0.0000 Ecliptic YDOT -0.00170222 +/- 0.0000 Ecliptic ZDOT 0.00063430 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.85035604 +/- 0.0003 Geocenter to KBO 35.36095148 +/- 0.0004 # Hcoef: 7.20
The following table shows the complete astrometric record for 11WW188. 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 (11WW188) followed by the observatory code and reference code for the source of the astrometry.
2011 11 25.62963 08 39 37.50 +43 31 53.0 22.6i 11WW188 F51 C~77oO 2011 11 25.63257 08 39 37.50 +43 31 53.3 22.7i 11WW188 F51 C~77oO 2011 11 25.63846 08 39 37.48 +43 31 53.5 22.4i 11WW188 F51 C~77oO 2011 11 25.6414 08 39 37.47 +43 31 53.6 22.5i 11WW188 F51 C~77oO 2011 11 28.60071 08 39 30.29 +43 34 13.7 22.7i 11WW188 F51 C~77oO 2011 11 28.60365 08 39 30.29 +43 34 13.9 22.3i 11WW188 F51 C~77oO 2011 11 28.60659 08 39 30.31 +43 34 13.9 22.6i 11WW188 F51 C~77oO 2011 11 28.60953 08 39 30.31 +43 34 14.3 22.6i 11WW188 F51 C~77oO 2011 11 28.61542 08 39 30.25 +43 34 14.6 22.6i 11WW188 F51 C~77oO 2011 11 28.62131 08 39 30.24 +43 34 14.7 22.7i 11WW188 F51 C~77oO 2011 11 28.64346 08 39 30.18 +43 34 15.6 22.6i 11WW188 F51 C~77oO 2011 11 28.6464 08 39 30.16 +43 34 16.1 22.7i 11WW188 F51 C~77oO 2012 01 19.55058 08 34 42.54 +44 09 36.0 22.2i 11WW188 F51 C~77oO 2012 01 19.55353 08 34 42.51 +44 09 36.1 22.1i 11WW188 F51 C~77oO 2012 01 19.55943 08 34 42.46 +44 09 36.3 22.4i 11WW188 F51 C~77oO 2012 01 19.56238 08 34 42.43 +44 09 36.4 22.5i 11WW188 F51 C~77oO 2012 01 19.56533 08 34 42.43 +44 09 36.5 22.7i 11WW188 F51 C~77oO 2012 01 19.56828 08 34 42.41 +44 09 36.4 22.5i 11WW188 F51 C~77oO 2012 01 19.57128 08 34 42.36 +44 09 36.6 22.4i 11WW188 F51 C~77oO 2013 02 09.27664 08 42 56.18 +44 05 36.9 22.6i 11WW188 F51 C~77oO 2013 02 09.28852 08 42 56.10 +44 05 37.3 22.7i 11WW188 F51 C~77oO 2013 02 09.29148 08 42 56.08 +44 05 37.1 22.7i 11WW188 F51 C~77oO 2013 02 09.29444 08 42 56.06 +44 05 37.2 22.2i 11WW188 F51 C~77oO 2013 02 09.2974 08 42 56.04 +44 05 37.3 22.2i 11WW188 F51 C~77oO 2013 03 04.41104 08 40 24.32 +44 06 23.7 22.7i 11WW188 F51 C~77oO 2013 03 04.414 08 40 24.33 +44 06 23.6 22.5i 11WW188 F51 C~77oO 2013 03 04.41695 08 40 24.29 +44 06 23.5 22.7i 11WW188 F51 C~77oO 2013 03 04.41991 08 40 24.27 +44 06 23.6 22.6i 11WW188 F51 C~77oO 2013 03 04.42286 08 40 24.26 +44 06 23.7 22.7i 11WW188 F51 C~77oO 2013 03 04.42582 08 40 24.24 +44 06 23.6 22.7i 11WW188 F51 C~77oO 2013 03 04.42878 08 40 24.22 +44 06 23.4 22.7i 11WW188 F51 C~77oO 2013 03 04.43173 08 40 24.22 +44 06 23.7 22.5i 11WW188 F51 C~77oO 2013 03 07.46603 08 40 07.50 +44 05 54.3 22.3i 11WW188 F51 C~77oO 2013 03 07.46899 08 40 07.46 +44 05 54.5 22.6i 11WW188 F51 C~77oO 2013 03 07.47194 08 40 07.44 +44 05 54.2 22.7i 11WW188 F51 C~77oO 2013 03 07.47491 08 40 07.45 +44 05 54.0 22.4i 11WW188 F51 C~77oO 2013 03 07.47787 08 40 07.42 +44 05 54.2 22.7i 11WW188 F51 C~77oO 2013 03 07.48082 08 40 07.41 +44 05 54.3 22.2i 11WW188 F51 C~77oO 2019 01 12.533775 09 48 13.39 +41 29 37.4 11WW188 T14 C~6wiL 2019 01 13.530599 09 48 07.86 +41 30 22.7 11WW188 T14 C~6wiL 2019 01 15.525483 09 47 56.46 +41 31 52.0 11WW188 T14 C~6wiL 2024 03 13.193600 10 27 43.503 +38 44 24.62 23.3G 11WW188 G37 C~7wLG 2024 03 13.243800 10 27 43.209 +38 44 25.42 11WW188 G37 C~7wLG
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 0.04 0.00 -0.17
2 0.0000 0.00 0.15 0.00 -0.01
3 0.0000 0.00 0.05 0.00 -0.09
4 0.0000 0.00 0.01 0.00 -0.12
5 0.0081 0.00 -0.28 0.00 -0.18
6 0.0081 0.00 -0.16 0.00 -0.12
7 0.0082 0.00 0.26 0.00 -0.26
8 0.0082 0.00 0.38 0.00 0.00
9 0.0082 0.00 -0.27 0.00 0.02
10 0.0082 0.00 -0.18 0.00 -0.15
11 0.0083 0.00 -0.16 0.00 -0.30
12 0.0083 0.00 -0.33 0.00 0.06
13 0.1504 0.00 0.17 0.00 0.15
14 0.1504 0.00 0.05 0.00 0.17
15 0.1504 0.00 -0.03 0.00 0.21
16 0.1504 0.00 -0.15 0.00 0.24
17 0.1504 0.00 0.18 0.00 0.26
18 0.1504 0.00 0.22 0.00 0.08
19 0.1504 0.00 -0.19 0.00 0.20
20 1.2092 0.00 -0.20 0.00 -0.07
21 1.2092 0.00 -0.09 0.00 0.18
22 1.2092 0.00 -0.07 0.00 -0.06
23 1.2092 0.00 -0.04 0.00 -0.00
24 1.2092 0.00 -0.01 0.00 0.06
25 1.2725 0.00 -0.16 0.00 0.04
26 1.2725 0.00 0.24 0.00 -0.03
27 1.2725 0.00 -0.10 0.00 -0.11
28 1.2725 0.00 -0.14 0.00 0.02
29 1.2725 0.00 -0.04 0.00 0.15
30 1.2725 0.00 -0.08 0.00 0.07
31 1.2726 0.00 -0.12 0.00 -0.10
32 1.2726 0.00 0.13 0.00 0.22
33 1.2809 0.00 0.34 0.00 -0.07
34 1.2809 0.00 -0.02 0.00 0.16
35 1.2809 0.00 -0.08 0.00 -0.10
36 1.2809 0.00 0.31 0.00 -0.27
37 1.2809 0.00 0.10 0.00 -0.03
38 1.2809 0.00 0.19 0.00 0.10
39 7.1318 0.00 -0.24 0.00 0.09
40 7.1346 0.00 0.25 0.00 0.02
41 7.1400 0.00 -0.14 0.00 -0.13
42 12.2972 0.00 -0.10 0.00 -0.17
43 12.2974 0.00 0.15 0.00 0.16
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.
11WW188 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 51.709 51.708 51.709 ecceobj 0.308 0.308 0.308 incobj 26.255 26.255 26.255 qmin 35.070 35.072 35.067 qmax 68.593 68.598 68.612 amean 51.463 51.473 51.474 amin 50.968 50.972 50.971 amax 52.100 52.109 52.109 emean 0.295 0.295 0.295 emin 0.273 0.273 0.273 emax 0.317 0.317 0.317 imean 25.708 25.707 25.706 imin 24.984 24.984 24.984 imax 26.403 26.397 26.400 excite_mean 0.525 0.525 0.525 fracstop 1.000 1.000 1.000 cjmean 2.836 2.836 2.836 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 178.1 177.5 177.5 kozaiamp 179.9 180.0 180.0