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: 309139 # Created Sun Dec 22 02:07:02 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 73 observations of 73 # Arc: 21.54y # First observation: 2001/08/05 # Last observation: 2023/02/20 # Chi-squared of fit: 205.11 DOF: 140 RMS: 0.30 # Min/Max residuals: -0.83 0.67 # Exact a, adot, b, bdot, g, gdot: 3.688943E-05 2.364072E-01 -7.287465E-06 -7.313691E-02 1.066108E-01 -7.299511E-03 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 30.237140 -1.614026 0.727961 0.357131 -0.612995 2452126.852003 # Heliocentric elements and errors Epoch: 2452126.5000 = 2001/08/05 Mean Anomaly: 352.14715 +/- 0.000 Argument of Peri: 134.58220 +/- 0.000 Long of Asc Node: 233.97645 +/- 0.000 Inclination: 31.58883 +/- 0.000 Eccentricity: 0.37889716 +/- 0.0000 Semi-Major Axis: 15.91207327 +/- 0.0000 Time of Perihelion: 2452632.2238 +/- 0.0 Perihelion: 9.88303382 +/- 0.0000 Aphelion: 21.94111272 +/- 0.0000 Period (y) 63.4744 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 8.79207036 +/- 0.0000 Ecliptic Y -0.97006079 +/- 0.0000 Ecliptic Z 4.72351549 +/- 0.0000 Ecliptic XDOT 0.00094597 +/- 0.0000 Ecliptic YDOT 0.00604816 +/- 0.0000 Ecliptic ZDOT -0.00171687 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 10.02764791 +/- 0.0000 Geocenter to KBO 9.37995791 +/- 0.0000 # Hcoef: 9.85
The following table shows the complete astrometric record for 309139. 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 (309139) followed by the observatory code and reference code for the source of the astrometry.
2001 08 05.35126 23 02 10.52 +26 53 39.5 19.9R 309139 644 C~11R0 2001 08 05.37211 23 02 10.24 +26 53 40.7 19.8R 309139 644 C~11R0 2002 09 27.33175 23 54 48.33 +27 36 18.6 19.6R 309139 644 C~11R0 2002 09 27.37095 23 54 47.68 +27 36 12.7 19.6R 309139 644 C~11R0 2002 09 28.31940 23 54 32.57 +27 33 50.7 19.6R 309139 644 C~11R0 2002 09 28.34648 23 54 32.14 +27 33 45.9 19.8R 309139 644 C~11R0 2002 09 28.37009 23 54 31.74 +27 33 42.5 20.0R 309139 644 C~11R0 2003 09 19.38917 01 04 18.60 +27 52 07.0 20.0 309139 644 C~08C8 2003 09 19.41031 01 04 18.30 +27 52 05.5 19.8 309139 644 C~08C8 2003 09 19.43128 01 04 18.00 +27 52 03.0 19.9 309139 644 C~08C8 2003 10 02.18297 01 01 01.32 +27 28 20.3 20.5V 309139 691 C~08C8 2003 10 02.20904 01 01 00.88 +27 28 17.0 20.5V 309139 691 C~08C8 2003 10 02.23511 01 01 00.45 +27 28 13.6 20.5V 309139 691 C~08C8 2003 11 18.06666 00 49 55.24 +25 08 16.1 20.9V 309139 691 C~08C8 2003 11 18.09444 00 49 54.97 +25 08 10.5 20.7V 309139 691 C~08C8 2003 11 18.12307 00 49 54.69 +25 08 04.8 20.6V 309139 691 C~08C8 2003 11 21.09027 00 49 29.32 +24 58 10.5 20.1 309139 644 C~08C8 2003 11 21.11169 00 49 29.18 +24 58 06.5 20.2 309139 644 C~08C8 2003 11 21.13321 00 49 28.96 +24 58 01.7 20.1 309139 644 C~08C8 2005 10 22.23623 02 58 58.15 +21 59 02.2 20.0V 309139 691 C~08C8 2005 10 22.25349 02 58 57.88 +21 59 00.5 19.9V 309139 691 C~08C8 2005 10 22.27084 02 58 57.62 +21 58 58.0 20.1V 309139 691 C~08C8 2005 10 27.49043 02 57 34.46 +21 47 47.2 20.3V 309139 691 C~08C8 2005 10 27.50774 02 57 34.17 +21 47 45.1 20.1V 309139 691 C~08C8 2005 10 27.52500 02 57 33.86 +21 47 42.8 20.5V 309139 691 C~08C8 2005 10 31.23403 02 56 33.15 +21 39 27.1 20.1V 309139 691 C~08C8 2005 10 31.25138 02 56 32.85 +21 39 24.5 20.2V 309139 691 C~08C8 2005 10 31.26872 02 56 32.57 +21 39 22.3 20.1V 309139 691 C~08C8 2005 12 04.07387 02 47 36.71 +20 18 37.0 20.7V 309139 691 C~08C8 2005 12 04.09480 02 47 36.43 +20 18 34.0 20.4V 309139 691 C~08C8 2005 12 04.11917 02 47 36.09 +20 18 30.5 20.3V 309139 691 C~08C8 2005 12 07.06549 02 46 57.59 +20 11 36.5 20.9V 309139 691 C~08C8 2005 12 07.09301 02 46 57.23 +20 11 32.7 20.6V 309139 691 C~08C8 2005 12 07.11698 02 46 56.90 +20 11 29.4 20.4V 309139 691 C~08C8 2006 09 28.35404 03 54 23.18 +18 51 20.7 20.2V 309139 G96 C~08C8 2006 09 28.36398 03 54 23.11 +18 51 19.8 20.3V 309139 G96 C~08C8 2006 09 28.37391 03 54 23.04 +18 51 19.2 20.3V 309139 G96 C~08C8 2006 09 28.38374 03 54 23.00 +18 51 18.1 20.4V 309139 G96 C~08C8 2006 10 12.42507 03 52 24.67 +18 28 55.3 309139 691 C~08C8 2006 10 12.44242 03 52 24.51 +18 28 53.4 309139 691 C~08C8 2006 10 12.45984 03 52 24.29 +18 28 51.5 309139 691 C~08C8 2006 10 16.46468 03 51 39.44 +18 21 52.3 20.8V 309139 691 C~08C8 2006 10 16.48210 03 51 39.24 +18 21 50.7 20.6V 309139 691 C~08C8 2006 10 16.49947 03 51 39.01 +18 21 48.4 20.8V 309139 691 C~08C8 2006 10 28.29766 03 49 03.18 +17 59 59.1 19.9V 309139 G96 C~08C8 2006 10 28.30741 03 49 03.03 +17 59 57.8 20.1V 309139 G96 C~08C8 2006 10 28.31722 03 49 02.89 +17 59 57.0 20.4V 309139 G96 C~08C8 2006 10 28.32700 03 49 02.78 +17 59 56.1 20.2V 309139 G96 C~08C8 2006 12 14.24201 03 36 42.26 +16 29 33.8 20.3V 309139 G96 Ct2655 2006 12 14.24763 03 36 42.15 +16 29 33.3 20.5V 309139 G96 Ct2655 2006 12 14.25333 03 36 42.12 +16 29 32.7 20.5V 309139 G96 Ct2655 2006 12 14.25889 03 36 42.01 +16 29 32.2 20.4V 309139 G96 Ct2655 2006 12 16.07676 03 36 17.21 +16 26 26.2 309139 691 Ct2655 2006 12 16.09770 03 36 16.91 +16 26 23.9 309139 691 Ct2655 2006 12 16.15305 03 36 16.13 +16 26 18.3 309139 691 Ct2655 2007 10 25.47694 04 34 08.72 +14 01 00.4 20.3V 309139 G96 C~08C8 2007 10 25.48686 04 34 08.58 +14 00 59.4 19.8V 309139 G96 C~08C8 2007 10 25.49701 04 34 08.43 +14 00 58.2 20.7V 309139 G96 C~08C8 2007 10 25.50709 04 34 08.29 +14 00 57.4 20.5V 309139 G96 C~08C8 2007 11 08.35566 04 31 09.15 +13 36 17.2 20.1V 309139 G96 C~08C8 2007 11 08.36589 04 31 09.04 +13 36 15.8 19.9V 309139 G96 C~08C8 2007 11 08.37544 04 31 08.86 +13 36 14.6 20.1V 309139 G96 C~08C8 2007 11 08.38507 04 31 08.72 +13 36 13.5 20.0V 309139 G96 C~08C8 2007 12 19.24260 04 20 29.29 +12 32 58.3 20.1V 309139 G96 C~08C8 2007 12 19.25051 04 20 29.18 +12 32 57.3 20.0V 309139 G96 C~08C8 2007 12 19.25826 04 20 29.04 +12 32 57.1 20.1V 309139 G96 C~08C8 2007 12 19.26602 04 20 28.93 +12 32 56.2 20.0V 309139 G96 C~08C8 2011 01 09.30440 05 59 54.96 +01 23 27.0 20.8R 309139 695 C~0U44 2011 01 09.30860 05 59 54.89 +01 23 27.0 309139 695 C~0U44 2011 03 10.10947 05 52 58.36 +02 05 08.7 20.8R 309139 688 C~0Trn 2011 03 10.17178 05 52 58.43 +02 05 13.2 309139 688 C~0Trn 2023 02 20.249530 09 44 19.378 -21 08 14.68 23.2G 309139 G37 C~6Iaf 2023 02 20.299830 09 44 18.880 -21 08 11.57 309139 G37 C~6Iaf
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 -0.01 0.00 -0.83
2 0.0001 0.00 -0.42 0.00 -0.13
3 1.1444 0.00 0.19 0.00 0.37
4 1.1445 0.00 0.05 0.00 0.30
5 1.1471 0.00 0.01 0.00 0.26
6 1.1471 0.00 0.18 0.00 -0.43
7 1.1472 0.00 -0.06 0.00 -0.24
8 2.1219 0.00 -0.39 0.00 -0.07
9 2.1220 0.00 -0.18 0.00 0.36
10 2.1221 0.00 -0.02 0.00 -0.22
11 2.1570 0.00 0.41 0.00 -0.00
12 2.1570 0.00 0.22 0.00 0.08
13 2.1571 0.00 0.20 0.00 0.07
14 2.2853 0.00 0.25 0.00 -0.19
15 2.2854 0.00 0.10 0.00 -0.25
16 2.2855 0.00 -0.06 0.00 -0.23
17 2.2936 0.00 -0.07 0.00 -0.06
18 2.2937 0.00 0.52 0.00 0.19
19 2.2937 0.00 -0.08 0.00 -0.33
20 4.2132 0.00 -0.05 0.00 0.02
21 4.2133 0.00 0.00 0.00 0.46
22 4.2133 0.00 0.24 0.00 0.12
23 4.2276 0.00 0.12 0.00 0.29
24 4.2277 0.00 0.03 0.00 0.50
25 4.2277 0.00 -0.38 0.00 0.50
26 4.2379 0.00 -0.04 0.00 0.67
27 4.2379 0.00 -0.16 0.00 0.41
28 4.2380 0.00 0.03 0.00 0.55
29 4.3305 0.00 0.04 0.00 0.21
30 4.3306 0.00 0.13 0.00 0.15
31 4.3306 0.00 0.04 0.00 0.07
32 4.3387 0.00 0.24 0.00 0.10
33 4.3388 0.00 0.18 0.00 0.10
34 4.3389 0.00 -0.11 0.00 0.12
35 5.1472 0.00 0.01 0.00 -0.03
36 5.1472 0.00 -0.09 0.00 -0.06
37 5.1472 0.00 -0.19 0.00 0.21
38 5.1472 0.00 0.15 0.00 -0.03
39 5.1857 0.00 -0.40 0.00 0.34
40 5.1857 0.00 0.05 0.00 0.23
41 5.1858 0.00 -0.39 0.00 0.12
42 5.1968 0.00 -0.16 0.00 0.05
43 5.1968 0.00 -0.01 0.00 0.32
44 5.1968 0.00 -0.33 0.00 -0.12
45 5.2291 0.00 -0.06 0.00 -0.48
46 5.2292 0.00 -0.14 0.00 -0.67
47 5.2292 0.00 -0.06 0.00 -0.34
48 5.2292 0.00 0.46 0.00 -0.13
49 5.3577 0.00 0.08 0.00 -0.42
50 5.3577 0.00 -0.37 0.00 -0.33
51 5.3577 0.00 0.39 0.00 -0.34
52 5.3577 0.00 -0.07 0.00 -0.26
53 5.3627 0.00 0.46 0.00 0.46
54 5.3628 0.00 0.27 0.00 0.26
55 5.3629 0.00 -0.02 0.00 0.25
56 6.2207 0.00 0.61 0.00 -0.62
57 6.2208 0.00 0.23 0.00 -0.55
58 6.2208 0.00 -0.26 0.00 -0.66
59 6.2208 0.00 -0.61 0.00 -0.37
60 6.2587 0.00 0.05 0.00 0.49
61 6.2588 0.00 0.65 0.00 0.17
62 6.2588 0.00 0.05 0.00 -0.02
63 6.2588 0.00 0.07 0.00 -0.10
64 6.3707 0.00 -0.27 0.00 -0.10
65 6.3707 0.00 -0.15 0.00 -0.52
66 6.3707 0.00 -0.52 0.00 -0.16
67 6.3707 0.00 -0.43 0.00 -0.49
68 9.4290 0.00 0.18 0.00 0.30
69 9.4290 0.00 -0.00 0.00 0.29
70 9.5928 0.00 0.11 0.00 -0.17
71 9.5929 0.00 0.09 0.00 0.29
72 21.5439 0.00 -0.21 0.00 -0.22
73 21.5440 0.00 0.22 0.00 0.19
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.
309139 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 15.970 15.970 15.971 ecceobj 0.381 0.381 0.381 incobj 31.587 31.587 31.587 qmin 9.887 9.887 9.887 qmax 22.054 22.053 22.054 amean 15.848 15.849 15.848 amin 15.767 15.768 15.766 amax 15.970 15.970 15.970 emean 0.373 0.373 0.373 emin 0.365 0.365 0.365 emax 0.381 0.381 0.381 imean 32.593 32.593 32.594 imin 32.545 32.545 32.545 imax 32.627 32.627 32.627 excite_mean 0.655 0.655 0.655 fracstop 0.000 0.000 0.000 cjmean 3.039 3.039 3.040 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 135.3 135.3 135.3 kozaiamp 0.8 0.8 0.8