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: 09KK30 # Created Thu Apr 25 01:13:07 2024 # Orbit generated from Bernstein formalism # Fitting 40 observations of 40 # Arc: 2.03y # First observation: 2009/05/25 # Last observation: 2011/06/04 Preliminary a, adot, b, bdot, g, gdot: -0.000004 0.017489 0.000002 0.004373 0.019999 0.000000 # Chi-squared of fit: 21.77 DOF: 74 RMS: 0.13 # Min/Max residuals: -0.26 0.40 # Exact a, adot, b, bdot, g, gdot: 1.360264E-05 1.769506E-02 3.097050E-06 4.423854E-03 2.029156E-02 6.614789E-03 # Covariance matrix: 8.8864E-14 -7.5467E-14 4.2802E-16 -8.9094E-15 7.9109E-14 -1.1268E-12 -7.5467E-14 6.4510E-13 -1.9014E-14 1.6056E-13 2.0676E-13 1.9597E-11 4.2802E-16 -1.9014E-14 6.0851E-14 -4.5522E-14 -9.3960E-15 -6.5016E-13 -8.9094E-15 1.6056E-13 -4.5522E-14 1.1497E-13 6.0999E-14 5.4750E-12 7.9109E-14 2.0676E-13 -9.3960E-15 6.0999E-14 3.9234E-13 7.3087E-12 -1.1268E-12 1.9597E-11 -6.5016E-13 5.4750E-12 7.3087E-12 6.6813E-10 # lat0 lon0 xBary yBary zBary JD0 -2.794251 -110.983601 0.087430 -0.049118 -1.005650 2454977.015284 # Heliocentric elements and errors Epoch: 2454970.5000 = 2009/05/19 Mean Anomaly: 44.48793 +/- 0.101 Argument of Peri: 263.85627 +/- 0.018 Long of Asc Node: 259.78499 +/- 0.001 Inclination: 14.23863 +/- 0.001 Eccentricity: 0.37160959 +/- 0.0015 Semi-Major Axis: 60.25785059 +/- 0.0785 Time of Perihelion: 2433857.0796 +/- 24.8 Perihelion: 37.86545562 +/- 0.1009 Aphelion: 82.65024555 +/- 0.1391 Period (y) 467.7660 +/- 0.91 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -18.06546681 +/- 0.0006 Ecliptic Y -46.87167739 +/- 0.0014 Ecliptic Z -2.40225322 +/- 0.0001 Ecliptic XDOT 0.00190443 +/- 0.0000 Ecliptic YDOT -0.00171034 +/- 0.0000 Ecliptic ZDOT 0.00055257 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 50.29001941 +/- 0.0013 Geocenter to KBO 49.28156770 +/- 0.0015 # Hcoef: 7.00
The following table shows the complete astrometric record for 09KK30. 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 (09KK30) followed by the observatory code and reference code for the source of the astrometry.
2009 05 25.514518 16 27 22.18 -24 33 44.41 23.5R 09KK30 568 C~07fN 2009 05 25.517041 16 27 22.16 -24 33 44.43 23.5R 09KK30 568 C~07fN 2009 05 25.519597 16 27 22.15 -24 33 44.35 23.7R 09KK30 568 C~07fN 2009 05 25.522212 16 27 22.15 -24 33 44.38 23.8R 09KK30 568 C~07fN 2009 05 26.540061 16 27 17.68 -24 33 32.39 23.3R 09KK30 568 C~07fN 2009 05 26.545535 16 27 17.67 -24 33 32.26 23.4R 09KK30 568 C~07fN 2009 05 26.556286 16 27 17.61 -24 33 32.27 23.5R 09KK30 568 C~07fN 2009 05 26.561672 16 27 17.59 -24 33 32.14 23.4R 09KK30 568 C~07fN 2009 05 27.367988 16 27 14.07 -24 33 22.55 23.5R 09KK30 568 C~07fN 2009 05 27.499944 16 27 13.48 -24 33 21.07 23.7R 09KK30 568 C~07fN 2009 05 27.502480 16 27 13.47 -24 33 20.99 23.7R 09KK30 568 C~07fN 2009 05 27.505047 16 27 13.45 -24 33 20.95 23.8R 09KK30 568 C~07fN 2009 05 27.507654 16 27 13.44 -24 33 20.91 23.8R 09KK30 568 C~07fN 2009 05 27.558348 16 27 13.22 -24 33 20.32 23.6R 09KK30 568 C~07fN 2009 05 27.560926 16 27 13.21 -24 33 20.27 23.5R 09KK30 568 C~07fN 2009 05 27.563465 16 27 13.20 -24 33 20.22 23.5R 09KK30 568 C~07fN 2009 05 27.566071 16 27 13.18 -24 33 20.21 23.6R 09KK30 568 C~07fN 2009 07 17.36181 16 23 58.52 -24 23 00.6 23.8i 09KK30 568 C~08CW 2009 07 17.36550 16 23 58.51 -24 23 00.6 23.6i 09KK30 568 C~08CW 2009 07 17.36714 16 23 58.51 -24 23 00.5 23.9i 09KK30 568 C~08CW 2009 07 17.36970 16 23 58.50 -24 23 00.5 23.6i 09KK30 568 C~08CW 2009 08 22.24076 16 23 09.02 -24 17 52.8 24.2R 09KK30 568 C~08eG 2009 08 22.25207 16 23 09.00 -24 17 52.8 24.7R 09KK30 568 C~08eG 2009 08 22.31259 16 23 09.00 -24 17 52.3 24.4R 09KK30 568 C~08eG 2009 08 22.32352 16 23 09.00 -24 17 52.4 24.3R 09KK30 568 C~08eG 2010 06 11.26934 16 30 43.42 -24 24 50.9 23.3 09KK30 568 C~0Oqh 2010 06 11.27037 16 30 43.39 -24 24 51.1 09KK30 568 C~0Oqh 2010 06 11.27140 16 30 43.37 -24 24 51.2 09KK30 568 C~0Oqh 2010 06 11.27243 16 30 43.36 -24 24 51.1 09KK30 568 C~0Oqh 2010 06 11.41251 16 30 42.76 -24 24 49.3 09KK30 568 C~0Oqh 2010 06 11.41364 16 30 42.78 -24 24 49.4 09KK30 568 C~0Oqh 2010 06 11.41466 16 30 42.76 -24 24 49.5 09KK30 568 C~0Oqh 2010 06 11.41577 16 30 42.75 -24 24 49.5 09KK30 568 C~0Oqh 2010 06 11.41681 16 30 42.75 -24 24 49.3 09KK30 568 C~0Oqh 2011 06 03.49748 16 35 46.74 -24 20 22.4 23.7r 09KK30 568 C~0Wc2 2011 06 03.50023 16 35 46.72 -24 20 22.2 09KK30 568 C~0Wc2 2011 06 03.50231 16 35 46.71 -24 20 22.2 09KK30 568 C~0Wc2 2011 06 03.50340 16 35 46.71 -24 20 22.2 09KK30 568 C~0Wc3 2011 06 04.28201 16 35 43.33 -24 20 13.3 09KK30 568 C~0Wc3 2011 06 04.28305 16 35 43.35 -24 20 13.4 09KK30 568 C~0Wc3
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 0.07
2 0.0000 -0.27 -0.07 -0.06 0.00
3 0.0000 -0.41 -0.06 -0.00 0.06
4 0.0000 -0.41 0.10 -0.03 0.02
5 0.0028 -62.52 -0.06 2.25 0.06
6 0.0028 -62.67 0.12 2.36 0.16
7 0.0029 -63.48 -0.02 2.22 -0.01
8 0.0029 -63.77 0.02 2.31 0.07
9 0.0051 -112.70 0.02 4.25 0.17
10 0.0054 -120.89 0.01 4.45 0.09
11 0.0054 -121.03 0.02 4.50 0.14
12 0.0054 -121.31 -0.10 4.50 0.13
13 0.0055 -121.45 -0.08 4.52 0.14
14 0.0056 -124.51 0.00 4.63 0.13
15 0.0056 -124.65 0.02 4.66 0.16
16 0.0056 -124.79 0.03 4.69 0.18
17 0.0056 -125.06 -0.08 4.65 0.14
18 0.1447 -2847.74 -0.02 191.67 -0.17
19 0.1447 -2847.87 -0.01 191.65 -0.21
20 0.1447 -2847.89 0.04 191.74 -0.12
21 0.1447 -2848.02 0.00 191.72 -0.16
22 0.2429 -3565.62 0.17 384.82 -0.13
23 0.2430 -3565.89 -0.09 384.77 -0.24
24 0.2431 -3565.97 -0.11 385.27 -0.10
25 0.2431 -3565.95 -0.09 385.17 -0.26
26 1.0452 2632.66 0.40 949.23 0.16
27 1.0452 2632.29 0.08 948.97 -0.11
28 1.0452 2632.03 -0.11 948.83 -0.25
29 1.0452 2631.88 -0.20 948.91 -0.17
30 1.0456 2623.51 -0.11 949.45 -0.01
31 1.0456 2623.79 0.24 949.40 -0.07
32 1.0456 2623.54 0.05 949.26 -0.22
33 1.0456 2623.40 -0.02 949.23 -0.24
34 1.0456 2623.37 0.02 949.43 -0.05
35 2.0232 6695.50 0.07 1820.95 -0.06
36 2.0232 6695.20 -0.06 1821.11 0.09
37 2.0232 6695.07 -0.07 1821.09 0.07
38 2.0232 6695.07 -0.00 1821.09 0.07
39 2.0254 6648.03 -0.23 1823.35 0.26
40 2.0254 6648.31 0.12 1823.29 0.20
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.
09KK30 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 59.586 59.812 59.363 ecceobj 0.369 0.373 0.365 incobj 14.300 14.300 14.300 qmin 37.053 37.067 37.269 qmax 84.364 84.627 83.391 amean 60.129 60.288 59.822 amin 59.440 59.575 59.072 amax 61.010 61.213 60.757 emean 0.368 0.372 0.360 emin 0.354 0.361 0.343 emax 0.383 0.384 0.375 imean 16.066 16.014 16.265 imin 15.605 15.637 15.636 imax 16.659 16.377 17.122 excite_mean 0.460 0.463 0.456 fracstop 1.000 1.000 1.000 cjmean 3.026 3.024 3.027 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 175.7 180.7 176.9 kozaiamp 180.0 180.0 180.0