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: 04QH29 # Created Tue Apr 23 01:11:58 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 27 observations of 27 # Arc: 19.05y # First observation: 2004/08/19 # Last observation: 2023/09/06 # Chi-squared of fit: 86.65 DOF: 48 RMS: 0.32 # Min/Max residuals: -0.96 0.81 # Exact a, adot, b, bdot, g, gdot: 1.650828E-05 2.756799E-02 1.476157E-06 5.848290E-03 2.574263E-02 -2.125964E-03 # Covariance matrix: 1.1369E-13 -2.1627E-14 4.6948E-15 -3.3202E-15 1.2272E-14 -2.7853E-14 -2.1627E-14 1.5225E-14 -4.1521E-15 2.9421E-15 2.6971E-14 2.4410E-14 4.6948E-15 -4.1521E-15 9.0689E-14 -7.3651E-15 -6.7916E-15 -7.2529E-15 -3.3202E-15 2.9421E-15 -7.3651E-15 1.7830E-15 4.8455E-15 5.1379E-15 1.2272E-14 2.6971E-14 -6.7916E-15 4.8455E-15 2.6648E-13 3.8609E-14 -2.7853E-14 2.4410E-14 -7.2529E-15 5.1379E-15 3.8609E-14 4.2689E-14 # lat0 lon0 xBary yBary zBary JD0 -0.922182 -37.662996 -0.077667 -0.016246 -1.013017 2453236.871453 # Heliocentric elements and errors Epoch: 2453236.5000 = 2004/08/19 Mean Anomaly: 345.52700 +/- 0.004 Argument of Peri: 18.82278 +/- 0.006 Long of Asc Node: 326.66462 +/- 0.000 Inclination: 12.04155 +/- 0.000 Eccentricity: 0.22295498 +/- 0.0001 Semi-Major Axis: 50.53870210 +/- 0.0054 Time of Perihelion: 2458512.3289 +/- 20.2 Perihelion: 39.27084656 +/- 0.0053 Aphelion: 61.80655765 +/- 0.0074 Period (y) 359.2893 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 31.59303454 +/- 0.0006 Ecliptic Y -24.28829494 +/- 0.0005 Ecliptic Z -0.62511747 +/- 0.0000 Ecliptic XDOT 0.00161855 +/- 0.0000 Ecliptic YDOT 0.00244603 +/- 0.0000 Ecliptic ZDOT 0.00062566 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.85518473 +/- 0.0006 Geocenter to KBO 38.84616043 +/- 0.0008 # Hcoef: 7.21
The following table shows the complete astrometric record for 04QH29. 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 (04QH29) followed by the observatory code and reference code for the source of the astrometry.
2004 08 19.37071 21 40 01.21 -14 56 18.8 23.4g 04QH29 568 C~0X5Y 2004 08 19.37236 21 40 01.21 -14 56 19.1 22.9g 04QH29 568 C~0X5Y 2004 08 19.39699 21 40 01.08 -14 56 19.2 23.1g 04QH29 568 C~0X5Y 2004 08 19.39863 21 40 01.01 -14 56 19.6 23.0g 04QH29 568 C~0X5Y 2004 08 19.42797 21 40 00.90 -14 56 19.7 23.2g 04QH29 568 C~0X5Y 2004 08 19.42961 21 40 00.91 -14 56 20.4 23.2g 04QH29 568 C~0X5Y 2004 08 20.40532 21 39 56.14 -14 56 41.2 23.5g 04QH29 568 C~0X5Y 2004 10 13.26576 21 36 27.96 -15 10 05.0 23.3i 04QH29 568 C~0X5Y 2004 10 13.32727 21 36 27.85 -15 10 05.4 23.2i 04QH29 568 C~0X5Y 2004 10 13.38664 21 36 27.75 -15 10 06.2 24.0i 04QH29 568 C~0X5Y 2006 07 20.44865 21 53 47.21 -13 04 32.3 04QH29 568 C~0X5Y 2006 07 20.47503 21 53 47.09 -13 04 32.9 23.2r 04QH29 568 C~0X5Y 2006 07 20.50155 21 53 46.98 -13 04 33.4 04QH29 568 C~0X5Y 2006 07 26.38624 21 53 21.67 -13 06 26.5 23.8r 04QH29 568 C~0X5Y 2006 07 26.41220 21 53 21.56 -13 06 27.2 24.0r 04QH29 568 C~0X5Y 2006 07 26.43819 21 53 21.44 -13 06 27.7 24.0r 04QH29 568 C~0X5Y 2006 10 22.16072 21 47 29.26 -13 31 41.8 04QH29 675 C~0X5Y 2006 10 22.16486 21 47 29.26 -13 31 41.9 04QH29 675 C~0X5Y 2006 10 23.18077 21 47 27.71 -13 31 46.1 04QH29 675 C~0X5Y 2014 09 26.19924 22 33 31.32 -06 22 50.6 22.4R 04QH29 695 C~1LJL 2014 09 26.25993 22 33 31.06 -06 22 52.6 04QH29 695 C~1LJL 2014 09 26.31745 22 33 30.80 -06 22 53.4 04QH29 695 C~1LJL 2014 10 22.13143 22 32 01.88 -06 31 18.5 22.2R 04QH29 G37 C~1BxG 2014 10 22.23813 22 32 01.60 -06 31 20.1 04QH29 G37 C~1BxG 2023 09 06.377820 23 24 46.746 +02 06 35.74 22.7G 04QH29 G37 C~7APV 2023 09 06.416670 23 24 46.559 +02 06 34.79 04QH29 G37 C~7APV 2023 09 06.455710 23 24 46.379 +02 06 33.80 04QH29 G37 C~7APV
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 -0.06 0.00 0.44
2 0.0000 0.00 0.06 0.00 0.18
3 0.0001 0.00 -0.03 0.00 0.60
4 0.0001 0.00 -0.96 0.00 0.23
5 0.0002 0.00 -0.40 0.00 0.75
6 0.0002 0.00 -0.12 0.00 0.08
7 0.0028 0.00 0.40 0.00 -0.26
8 0.1503 0.00 0.04 0.00 0.02
9 0.1505 0.00 0.39 0.00 -0.04
10 0.1506 0.00 0.81 0.00 -0.52
11 1.9167 0.00 0.18 0.00 -0.03
12 1.9168 0.00 0.06 0.00 -0.14
13 1.9169 0.00 0.10 0.00 -0.14
14 1.9330 0.00 -0.01 0.00 0.23
15 1.9330 0.00 0.10 0.00 0.05
16 1.9331 0.00 0.06 0.00 0.07
17 2.1733 0.00 -0.31 0.00 -0.51
18 2.1733 0.00 -0.20 0.00 -0.60
19 2.1761 0.00 -0.19 0.00 -0.65
20 10.1022 0.00 0.12 0.00 0.18
21 10.1024 0.00 0.12 0.00 -0.41
22 10.1025 0.00 -0.09 0.00 0.12
23 10.1732 0.00 0.13 0.00 0.15
24 10.1735 0.00 0.12 0.00 0.14
25 19.0472 0.00 -0.08 0.00 0.00
26 19.0474 0.00 -0.11 0.00 0.04
27 19.0475 0.00 -0.03 0.00 0.05
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.
04QH29 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 51.033 51.032 51.033 ecceobj 0.231 0.231 0.231 incobj 12.001 12.001 12.001 qmin 38.306 38.307 38.305 qmax 63.881 63.879 63.887 amean 50.847 50.848 50.850 amin 50.361 50.361 50.383 amax 51.418 51.417 51.417 emean 0.230 0.230 0.230 emin 0.216 0.216 0.217 emax 0.244 0.244 0.244 imean 12.961 12.961 12.959 imin 12.534 12.539 12.540 imax 13.448 13.448 13.441 excite_mean 0.321 0.321 0.321 fracstop 1.000 1.000 1.000 cjmean 3.057 3.057 3.057 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 172.7 172.6 172.4 kozaiamp 180.0 179.9 180.0