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: 06QH181 # Created Sun Dec 22 02:08:55 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 22 observations of 22 # Arc: 14.18y # First observation: 2006/08/21 # Last observation: 2020/10/24 # Chi-squared of fit: 111.86 DOF: 38 RMS: 0.40 # Min/Max residuals: -0.79 1.44 # Exact a, adot, b, bdot, g, gdot: 8.468901E-06 6.599223E-03 5.390635E-06 2.271576E-03 1.228863E-02 2.771072E-03 # Covariance matrix: 2.4255E-13 -3.4038E-14 6.5916E-15 -6.7384E-15 4.4560E-14 -2.5222E-13 -3.4038E-14 4.4301E-14 -8.3442E-15 1.3803E-14 9.5964E-14 5.1445E-13 6.5916E-15 -8.3442E-15 2.2540E-13 -2.3955E-14 -4.2525E-16 -1.2540E-13 -6.7384E-15 1.3803E-14 -2.3955E-14 8.0890E-15 2.1200E-14 1.8469E-13 4.4560E-14 9.5964E-14 -4.2525E-16 2.1200E-14 5.9717E-13 7.8483E-13 -2.5222E-13 5.1445E-13 -1.2540E-13 1.8469E-13 7.8483E-13 6.8896E-12 # lat0 lon0 xBary yBary zBary JD0 -3.252149 65.111339 1.005357 0.006903 0.119111 2453968.867764 # Heliocentric elements and errors Epoch: 2453968.5000 = 2006/08/21 Mean Anomaly: 104.37359 +/- 0.051 Argument of Peri: 207.32659 +/- 0.029 Long of Asc Node: 73.80561 +/- 0.000 Inclination: 19.20162 +/- 0.000 Eccentricity: 0.42101996 +/- 0.0002 Semi-Major Axis: 65.67600199 +/- 0.0131 Time of Perihelion: 2397605.1772 +/- 32.2 Perihelion: 38.02509442 +/- 0.0129 Aphelion: 93.32690956 +/- 0.0214 Period (y) 532.2532 +/- 0.16 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 35.05060046 +/- 0.0022 Ecliptic Y 73.16497770 +/- 0.0046 Ecliptic Z -4.61606470 +/- 0.0003 Ecliptic XDOT -0.00105770 +/- 0.0000 Ecliptic YDOT 0.00119906 +/- 0.0000 Ecliptic ZDOT 0.00047021 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 81.25836022 +/- 0.0043 Geocenter to KBO 81.37573972 +/- 0.0051 # Hcoef: 4.59
The following table shows the complete astrometric record for 06QH181. 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 (06QH181) followed by the observatory code and reference code for the source of the astrometry.
2006 08 21.36701 04 15 09.34 +17 57 03.8 22.3R 06QH181 807 Cs5502 2006 08 22.35191 04 15 09.90 +17 57 03.8 06QH181 807 Cs5502 2006 08 23.34016 04 15 10.42 +17 57 04.3 06QH181 807 Cs5502 2006 10 19.38669 04 14 19.45 +17 54 01.9 22.9R 06QH181 695 Ct0530 2006 10 19.49486 04 14 19.25 +17 54 01.9 06QH181 695 Ct0530 2006 10 20.39130 04 14 17.29 +17 53 56.1 06QH181 695 Ct0530 2006 10 20.49409 04 14 17.07 +17 53 55.4 06QH181 695 Ct0530 2008 03 04.31389 04 11 37.98 +18 00 11.4 06QH181 568 Cy4051 2008 03 05.22922 04 11 38.65 +18 00 16.1 06QH181 568 Cy4051 2008 03 05.31374 04 11 38.69 +18 00 16.2 06QH181 568 Cy4051 2013 10 06.50390 04 24 59.47 +19 15 13.3 23.4R 06QH181 695 C~0ze1 2013 10 07.33701 04 24 58.15 +19 15 09.8 06QH181 695 C~0ze1 2013 10 07.46039 04 24 57.97 +19 15 09.5 06QH181 695 C~0ze1 2013 11 06.35973 04 23 54.56 +19 12 48.6 23.9R 06QH181 G37 C~0yjC 2013 11 06.44820 04 23 54.33 +19 12 47.8 06QH181 G37 C~0yjC 2017 01 16.164435 04 25 14.31 +19 40 51.1 23.9G 06QH181 W84 C~7dEu 2017 01 16.166497 04 25 14.33 +19 40 50.7 23.9G 06QH181 W84 C~7dEu 2018 12 09.446945 04 29 38.65 +20 04 40.8 23.8r 06QH181 T09 C~7dEu 2018 12 09.553480 04 29 38.34 +20 04 40.4 23.8r 06QH181 T09 C~7dEu 2018 12 10.466758 04 29 35.82 +20 04 36.2 23.7r 06QH181 T09 C~7dEu 2018 12 10.572081 04 29 35.52 +20 04 35.7 23.8r 06QH181 T09 C~7dEu 2020 10 24.288752 04 34 29.73 +20 29 20.9 23.9G 06QH181 W84 C~7dEu
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 0.10 0.00 -0.50
2 0.0027 0.00 0.00 0.00 -0.79
3 0.0054 0.00 0.02 0.00 -0.45
4 0.1616 0.00 -0.01 0.00 -0.39
5 0.1619 0.00 0.53 0.00 0.24
6 0.1643 0.00 0.03 0.00 -0.38
7 0.1646 0.00 0.13 0.00 -0.47
8 1.5358 0.00 -0.42 0.00 1.44
9 1.5383 0.00 -0.00 0.00 1.12
10 1.5385 0.00 -0.28 0.00 0.77
11 7.1270 0.00 0.02 0.00 0.03
12 7.1293 0.00 -0.43 0.00 -0.35
13 7.1296 0.00 -0.15 0.00 -0.19
14 7.2115 0.00 0.14 0.00 0.26
15 7.2117 0.00 0.14 0.00 -0.06
16 10.4060 0.00 -0.20 0.00 0.16
17 10.4060 0.00 0.16 0.00 -0.23
18 12.3014 0.00 0.04 0.00 -0.14
19 12.3017 0.00 -0.10 0.00 -0.03
20 12.3042 0.00 0.13 0.00 -0.04
21 12.3045 0.00 0.06 0.00 -0.04
22 14.1764 0.00 0.16 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.
06QH181 quality flag:3 Type: 13:4EEEEEE13:4EEEEEE13:4EEEEEE axisobj 66.456 66.456 66.456 ecceobj 0.415 0.415 0.415 incobj 19.055 19.055 19.055 qmin 37.568 37.566 37.567 qmax 95.976 95.961 95.986 amean 66.062 66.062 66.062 amin 65.270 65.267 65.268 amax 67.152 67.156 67.148 emean 0.416 0.416 0.416 emin 0.403 0.403 0.403 emax 0.431 0.431 0.431 imean 18.060 18.060 18.059 imin 17.470 17.469 17.471 imax 18.586 18.587 18.584 excite_mean 0.519 0.519 0.519 fracstop 1.000 1.000 1.000 cjmean 3.017 3.017 3.017 libcent 0 178.6 178.9 178.1 libamp 0 81.8 81.9 81.4 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 198.9 198.9 198.7 kozaiamp 180.0 180.0 180.0