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: 04PB108 # Created Sat Nov 23 02:08:42 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 47 observations of 47 # Arc: 17.08y # First observation: 2004/08/14 # Last observation: 2021/09/12 # Chi-squared of fit: 409.86 DOF: 88 RMS: 0.52 # Min/Max residuals: -1.40 0.84 # Exact a, adot, b, bdot, g, gdot: 1.417841E-05 2.118460E-02 -2.061262E-06 -7.551431E-03 2.339868E-02 -2.183898E-03 # Covariance matrix: 1.1771E-13 -4.3200E-14 -2.5081E-14 1.4222E-14 -1.6533E-15 -9.8206E-14 -4.3200E-14 2.3655E-14 1.4365E-14 -8.2149E-15 1.0315E-14 5.6678E-14 -2.5081E-14 1.4365E-14 5.9957E-14 -1.0405E-14 2.1807E-15 3.6835E-14 1.4222E-14 -8.2149E-15 -1.0405E-14 4.3080E-15 -2.1247E-15 -2.0973E-14 -1.6533E-15 1.0315E-14 2.1807E-15 -2.1247E-15 1.2024E-13 1.4066E-14 -9.8206E-14 5.6678E-14 3.6835E-14 -2.0973E-14 1.4066E-14 1.4476E-13 # lat0 lon0 xBary yBary zBary JD0 -4.858300 -19.079091 0.331459 -0.081317 -0.958000 2453231.838713 # Heliocentric elements and errors Epoch: 2453232.5000 = 2004/08/15 Mean Anomaly: 290.37272 +/- 0.018 Argument of Peri: 275.53374 +/- 0.023 Long of Asc Node: 147.46512 +/- 0.000 Inclination: 20.25287 +/- 0.000 Eccentricity: 0.10779166 +/- 0.0000 Semi-Major Axis: 44.89500766 +/- 0.0027 Time of Perihelion: 2474483.1590 +/- 9.7 Perihelion: 40.05570048 +/- 0.0025 Aphelion: 49.73431485 +/- 0.0031 Period (y) 300.8190 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.04106413 +/- 0.0006 Ecliptic Y -14.54518134 +/- 0.0002 Ecliptic Z -3.61961752 +/- 0.0001 Ecliptic XDOT 0.00049696 +/- 0.0000 Ecliptic YDOT 0.00244331 +/- 0.0000 Ecliptic ZDOT -0.00085866 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.69254856 +/- 0.0006 Geocenter to KBO 42.73754980 +/- 0.0006 # Hcoef: 6.53
The following table shows the complete astrometric record for 04PB108. 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 (04PB108) followed by the observatory code and reference code for the source of the astrometry.
2004 08 14.33797 22 57 06.02 -11 57 42.3 21.7R 04PB108 807 Cl2777 2004 08 15.27903 22 57 02.27 -11 58 11.4 04PB108 807 Cl2777 2004 08 15.37092 22 57 01.87 -11 58 14.3 04PB108 807 Cl2777 2004 09 13.24245 22 54 59.23 -12 13 07.5 21.5R 04PB108 304 Cl4404 2004 09 13.29045 22 54 59.02 -12 13 08.9 04PB108 304 Cl4404 2004 10 12.13642 22 53 07.42 -12 25 05.4 22.7R 04PB108 695 Cl8416 2004 10 12.24202 22 53 07.07 -12 25 07.4 04PB108 695 Cl8416 2005 07 11.35656 23 04 06.97 -11 37 22.9 22.8R 04PB108 304 Co3997 2005 07 11.40919 23 04 06.87 -11 37 24.4 04PB108 304 Co3997 2005 08 08.11196 23 02 46.26 -11 50 11.1 21.9R 04PB108 807 Co3997 2005 08 08.22813 23 02 45.83 -11 50 14.8 04PB108 807 Co3997 2005 08 09.11689 23 02 42.55 -11 50 42.3 04PB108 807 Co3997 2005 10 01.17389 22 59 02.36 -12 17 09.1 22.8R 04PB108 688 Co3997 2005 10 01.26594 22 59 02.13 -12 17 12.8 04PB108 688 Co3997 2006 08 04.30877 23 08 17.15 -11 43 31.6 22.9R 04PB108 250 S~06Ak 2006 08 04.36500 23 08 16.95 -11 43 33.3 04PB108 250 S~06Ak 2006 08 04.36939 23 08 16.94 -11 43 33.5 04PB108 250 S~06Ak 2006 08 04.37379 23 08 16.92 -11 43 33.6 04PB108 250 S~06Ak 2007 07 11.53584 23 14 37.56 -11 27 29.5 23.4R 04PB108 250 S~06Ak 2007 07 11.54348 23 14 37.55 -11 27 29.7 04PB108 250 S~06Ak 2007 07 11.55112 23 14 37.53 -11 27 29.9 04PB108 250 S~06Ak 2007 07 11.55876 23 14 37.52 -11 27 30.0 04PB108 250 S~06Ak 2007 07 15.54209 23 14 29.86 -11 29 07.0 04PB108 250 S~06Ak 2007 07 15.54973 23 14 29.85 -11 29 07.2 04PB108 250 S~06Ak 2007 07 15.55737 23 14 29.83 -11 29 07.3 04PB108 250 S~06Ak 2007 07 15.59834 23 14 29.75 -11 29 08.4 04PB108 250 S~06Ak 2007 07 21.72473 23 14 15.57 -11 31 47.8 04PB108 250 S~06Ak 2007 07 21.73237 23 14 15.55 -11 31 48.0 04PB108 250 S~06Ak 2007 07 21.74070 23 14 15.53 -11 31 48.2 04PB108 250 S~06Ak 2007 07 21.74834 23 14 15.51 -11 31 48.5 04PB108 250 S~06Ak 2007 09 05.82682 23 11 27.39 -11 55 42.2 04PB108 250 S~06Ak 2007 09 05.83515 23 11 27.36 -11 55 42.4 04PB108 250 S~06Ak 2007 09 05.84279 23 11 27.32 -11 55 42.7 04PB108 250 S~06Ak 2007 09 05.89418 23 11 27.10 -11 55 44.3 04PB108 250 S~06Ak 2007 10 02.19406 23 09 35.90 -12 08 23.4 04PB108 250 S~06Ak 2007 10 02.20031 23 09 35.87 -12 08 23.6 04PB108 250 S~06Ak 2007 10 02.32740 23 09 35.37 -12 08 26.8 04PB108 250 S~06Ak 2007 10 02.33642 23 09 35.33 -12 08 27.0 04PB108 250 S~06Ak 2007 10 02.34476 23 09 35.30 -12 08 27.2 04PB108 250 S~06Ak 2007 10 02.39267 23 09 35.11 -12 08 28.4 04PB108 250 S~06Ak 2009 10 12.16729 23 19 37.71 -12 01 50.5 23.0R 04PB108 688 C~09xd 2009 10 12.21627 23 19 37.49 -12 01 51.0 04PB108 688 C~09xd 2019 10 26.109700 00 13 21.218 -10 50 30.97 22.9G 04PB108 G37 C~3cX9 2019 10 26.177780 00 13 20.969 -10 50 32.81 04PB108 G37 C~3cX9 2021 09 12.325770 00 27 36.895 -10 09 28.34 22.9G 04PB108 G37 C~554U 2021 09 12.385900 00 27 36.642 -10 09 30.36 04PB108 G37 C~554U 2021 09 12.446340 00 27 36.365 -10 09 32.72 04PB108 G37 C~554U
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 0.27 0.00 -0.57
2 0.0026 0.00 0.25 0.00 -0.21
3 0.0028 0.00 -0.14 0.00 -0.24
4 0.0819 0.00 0.00 0.00 -0.57
5 0.0820 0.00 -0.02 0.00 -0.57
6 0.1610 0.00 -0.40 0.00 -0.76
7 0.1613 0.00 -0.38 0.00 -0.71
8 0.9063 0.00 -0.26 0.00 -0.15
9 0.9064 0.00 -0.11 0.00 -0.42
10 0.9823 0.00 0.46 0.00 -0.28
11 0.9826 0.00 0.51 0.00 -0.38
12 0.9850 0.00 0.47 0.00 -0.42
13 1.1303 0.00 -1.21 0.00 0.44
14 1.1305 0.00 0.77 0.00 -1.01
15 1.9712 0.00 0.71 0.00 -0.55
16 1.9713 0.00 0.59 0.00 -0.54
17 1.9713 0.00 0.66 0.00 -0.60
18 1.9714 0.00 0.59 0.00 -0.57
19 2.9054 0.00 0.17 0.00 0.37
20 2.9054 0.00 0.23 0.00 0.35
21 2.9054 0.00 0.13 0.00 0.32
22 2.9055 0.00 0.18 0.00 0.40
23 2.9164 0.00 0.39 0.00 -0.03
24 2.9164 0.00 0.48 0.00 -0.04
25 2.9164 0.00 0.42 0.00 0.05
26 2.9165 0.00 0.49 0.00 -0.02
27 2.9333 0.00 -1.39 0.00 0.30
28 2.9333 0.00 -1.40 0.00 0.31
29 2.9333 0.00 -1.39 0.00 0.33
30 2.9334 0.00 -1.40 0.00 0.24
31 3.0595 0.00 -0.17 0.00 0.77
32 3.0595 0.00 -0.08 0.00 0.84
33 3.0596 0.00 -0.18 0.00 0.78
34 3.0597 0.00 -0.15 0.00 0.81
35 3.1317 0.00 0.19 0.00 0.57
36 3.1317 0.00 0.11 0.00 0.53
37 3.1321 0.00 0.13 0.00 0.49
38 3.1321 0.00 0.06 0.00 0.52
39 3.1321 0.00 0.11 0.00 0.53
40 3.1323 0.00 0.09 0.00 0.52
41 5.1604 0.00 0.42 0.00 -0.66
42 5.1605 0.00 -0.16 0.00 -0.11
43 15.1972 0.00 -0.05 0.00 0.12
44 15.1974 0.00 0.13 0.00 -0.45
45 17.0787 0.00 0.10 0.00 -0.28
46 17.0788 0.00 0.13 0.00 -0.17
47 17.0790 0.00 -0.17 0.00 -0.39
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.
04PB108 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.350 45.350 45.350 ecceobj 0.113 0.113 0.113 incobj 20.176 20.176 20.176 qmin 39.575 39.581 39.568 qmax 50.971 50.971 50.971 amean 45.153 45.154 45.152 amin 44.790 44.791 44.789 amax 45.549 45.548 45.543 emean 0.107 0.107 0.107 emin 0.096 0.096 0.095 emax 0.119 0.120 0.119 imean 19.193 19.193 19.193 imin 18.883 18.873 18.899 imax 19.568 19.563 19.569 excite_mean 0.346 0.346 0.346 fracstop 1.000 1.000 1.000 cjmean 2.967 2.967 2.967 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 180.4 180.5 180.2 kozaiamp 180.0 180.0 180.0