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: 09KN30 # Created Sun Dec 22 02:09:06 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 51 observations of 51 # Arc: 8.00y # First observation: 2009/05/25 # Last observation: 2017/05/26 # Chi-squared of fit: 37.62 DOF: 96 RMS: 0.15 # Min/Max residuals: -0.54 0.54 # Exact a, adot, b, bdot, g, gdot: 2.224891E-05 4.647138E-02 1.840618E-06 3.061583E-03 3.332289E-02 5.384745E-03 # Covariance matrix: 6.7547E-14 -4.0256E-14 4.0519E-16 -1.8366E-15 6.9080E-14 -8.7657E-14 -4.0256E-14 9.2526E-14 -2.1585E-15 5.3843E-15 1.0176E-14 2.4728E-13 4.0519E-16 -2.1585E-15 3.8157E-14 -9.8458E-15 -1.9165E-15 -6.6824E-15 -1.8366E-15 5.3843E-15 -9.8458E-15 1.1564E-14 1.4306E-15 1.6427E-14 6.9080E-14 1.0176E-14 -1.9165E-15 1.4306E-15 2.9698E-13 5.2288E-14 -8.7657E-14 2.4728E-13 -6.6824E-15 1.6427E-14 5.2288E-14 7.5347E-13 # lat0 lon0 xBary yBary zBary JD0 -2.785216 -110.757086 0.091410 -0.048942 -1.005304 2454977.015284 # Heliocentric elements and errors Epoch: 2454976.5000 = 2009/05/25 Mean Anomaly: 4.09901 +/- 0.001 Argument of Peri: 306.54658 +/- 0.003 Long of Asc Node: 284.79293 +/- 0.001 Inclination: 4.60966 +/- 0.000 Eccentricity: 0.56473337 +/- 0.0001 Semi-Major Axis: 70.04972505 +/- 0.0134 Time of Perihelion: 2452538.2141 +/- 1.1 Perihelion: 30.49030805 +/- 0.0079 Aphelion: 109.60914206 +/- 0.0217 Period (y) 586.2972 +/- 0.17 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -11.06165158 +/- 0.0002 Ecliptic Y -28.94139836 +/- 0.0005 Ecliptic Z -1.45811447 +/- 0.0000 Ecliptic XDOT 0.00341427 +/- 0.0000 Ecliptic YDOT -0.00177369 +/- 0.0000 Ecliptic ZDOT 0.00022965 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 31.01751452 +/- 0.0004 Geocenter to KBO 30.00934801 +/- 0.0005 # Hcoef: 7.82
The following table shows the complete astrometric record for 09KN30. 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 (09KN30) followed by the observatory code and reference code for the source of the astrometry.
2009 05 25.514518 16 28 21.53 -24 35 19.20 22.4R 09KN30 568 C~07fN 2009 05 25.517041 16 28 21.52 -24 35 19.08 22.4R 09KN30 568 C~07fN 2009 05 25.519597 16 28 21.50 -24 35 19.06 22.4R 09KN30 568 C~07fN 2009 05 25.522212 16 28 21.48 -24 35 19.03 22.3R 09KN30 568 C~07fN 2009 05 25.527423 16 28 21.45 -24 35 18.94 22.4R 09KN30 568 C~07fN 2009 05 25.530014 16 28 21.43 -24 35 18.86 22.3R 09KN30 568 C~07fN 2009 05 25.532619 16 28 21.41 -24 35 18.88 22.2R 09KN30 568 C~07fN 2009 05 26.540061 16 28 14.86 -24 35 03.58 22.4R 09KN30 568 C~07fN 2009 05 26.542838 16 28 14.83 -24 35 03.47 22.2R 09KN30 568 C~07fN 2009 05 26.545535 16 28 14.81 -24 35 03.50 22.3R 09KN30 568 C~07fN 2009 05 26.553535 16 28 14.77 -24 35 03.34 22.3R 09KN30 568 C~07fN 2009 05 26.556286 16 28 14.74 -24 35 03.26 22.2R 09KN30 568 C~07fN 2009 05 26.561672 16 28 14.71 -24 35 03.19 22.2R 09KN30 568 C~07fN 2009 05 26.564366 16 28 14.69 -24 35 03.17 22.2R 09KN30 568 C~07fN 2009 05 27.367988 16 28 09.49 -24 34 50.86 22.5R 09KN30 568 C~07fN 2009 05 27.502480 16 28 08.59 -24 34 48.79 22.5R 09KN30 568 C~07fN 2009 05 27.505047 16 28 08.57 -24 34 48.73 22.4R 09KN30 568 C~07fN 2009 05 27.507654 16 28 08.56 -24 34 48.72 22.4R 09KN30 568 C~07fN 2009 05 27.558348 16 28 08.22 -24 34 47.93 22.2R 09KN30 568 C~07fN 2009 05 27.560926 16 28 08.20 -24 34 47.87 22.4R 09KN30 568 C~07fN 2009 05 27.563465 16 28 08.18 -24 34 47.83 22.4R 09KN30 568 C~07fN 2009 05 27.566071 16 28 08.17 -24 34 47.84 22.4R 09KN30 568 C~07fN 2009 07 17.36181 16 23 23.43 -24 21 10.7 22.5i 09KN30 568 C~08CW 2009 07 17.36550 16 23 23.42 -24 21 10.7 22.4i 09KN30 568 C~08CW 2009 07 17.36714 16 23 23.40 -24 21 10.7 22.6i 09KN30 568 C~08CW 2009 07 17.36970 16 23 23.40 -24 21 10.7 22.4i 09KN30 568 C~08CW 2009 08 22.24076 16 22 27.29 -24 15 09.0 23.1R 09KN30 568 C~08eG 2009 08 22.25207 16 22 27.29 -24 15 08.9 22.8R 09KN30 568 C~08eG 2009 08 22.31259 16 22 27.34 -24 15 08.6 22.7R 09KN30 568 C~08eG 2009 08 22.32352 16 22 27.34 -24 15 08.7 23.1R 09KN30 568 C~08eG 2010 06 10.45292 16 38 18.65 -24 44 16.7 09KN30 568 C~0Oqh 2010 06 10.47407 16 38 18.49 -24 44 16.5 09KN30 568 C~0Oqh 2010 06 11.27346 16 38 13.41 -24 44 05.1 22.6 09KN30 568 C~0Oqh 2010 06 11.27449 16 38 13.41 -24 44 05.2 09KN30 568 C~0Oqh 2010 06 11.27556 16 38 13.40 -24 44 05.0 09KN30 568 C~0Oqh 2010 06 11.27659 16 38 13.40 -24 44 05.1 09KN30 568 C~0Oqh 2010 06 11.27762 16 38 13.39 -24 44 05.0 09KN30 568 C~0Oqh 2010 06 11.41790 16 38 12.47 -24 44 03.0 09KN30 568 C~0Oqh 2010 06 11.41896 16 38 12.46 -24 44 03.0 09KN30 568 C~0Oqh 2010 06 11.42000 16 38 12.46 -24 44 03.0 09KN30 568 C~0Oqh 2010 06 11.42103 16 38 12.46 -24 44 03.0 09KN30 568 C~0Oqh 2010 06 11.42213 16 38 12.45 -24 44 02.9 09KN30 568 C~0Oqh 2011 06 03.49205 16 50 37.77 -24 55 26.8 22.6r 09KN30 568 C~0Wc3 2011 06 03.49318 16 50 37.76 -24 55 26.8 09KN30 568 C~0Wc3 2011 06 03.49432 16 50 37.75 -24 55 26.8 09KN30 568 C~0Wc3 2011 06 03.49535 16 50 37.74 -24 55 26.7 09KN30 568 C~0Wc3 2011 06 03.49644 16 50 37.74 -24 55 26.8 09KN30 568 C~0Wc3 2011 06 04.27578 16 50 32.68 -24 55 17.2 09KN30 568 C~0Wc3 2011 06 04.27786 16 50 32.64 -24 55 17.0 09KN30 568 C~0Wc3 2017 05 26.37361 17 57 08.57 -24 45 25.4 21.8R 09KN30 G37 C~2GiX 2017 05 26.43267 17 57 08.23 -24 45 25.3 09KN30 G37 C~2GiX
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 -0.07
2 0.0000 0.00 0.04 0.00 0.01
3 0.0000 0.00 -0.00 0.00 -0.01
4 0.0000 0.00 -0.04 0.00 -0.02
5 0.0000 0.00 0.02 0.00 -0.01
6 0.0000 0.00 -0.02 0.00 0.03
7 0.0000 0.00 -0.06 0.00 -0.03
8 0.0028 0.00 0.04 0.00 -0.03
9 0.0028 0.00 -0.13 0.00 0.04
10 0.0028 0.00 -0.17 0.00 -0.03
11 0.0028 0.00 0.03 0.00 0.00
12 0.0029 0.00 -0.15 0.00 0.04
13 0.0029 0.00 -0.07 0.00 0.02
14 0.0029 0.00 -0.10 0.00 0.00
15 0.0051 0.00 0.10 0.00 0.04
16 0.0054 0.00 -0.01 0.00 0.04
17 0.0054 0.00 -0.05 0.00 0.06
18 0.0055 0.00 0.06 0.00 0.03
19 0.0056 0.00 -0.00 0.00 0.02
20 0.0056 0.00 -0.05 0.00 0.04
21 0.0056 0.00 -0.10 0.00 0.04
22 0.0056 0.00 0.01 0.00 -0.01
23 0.1447 0.00 -0.04 0.00 0.02
24 0.1447 0.00 0.02 0.00 -0.03
25 0.1447 0.00 -0.19 0.00 -0.05
26 0.1447 0.00 -0.04 0.00 -0.09
27 0.2429 0.00 -0.02 0.00 0.02
28 0.2430 0.00 -0.14 0.00 0.06
29 0.2431 0.00 -0.01 0.00 0.03
30 0.2431 0.00 -0.13 0.00 -0.14
31 1.0430 0.00 0.01 0.00 0.54
32 1.0430 0.00 -0.31 0.00 0.42
33 1.0452 0.00 0.20 0.00 -0.02
34 1.0452 0.00 0.30 0.00 -0.14
35 1.0452 0.00 0.26 0.00 0.05
36 1.0452 0.00 0.36 0.00 -0.07
37 1.0452 0.00 0.31 0.00 0.02
38 1.0456 0.00 0.25 0.00 -0.03
39 1.0456 0.00 0.20 0.00 -0.04
40 1.0456 0.00 0.31 0.00 -0.06
41 1.0456 0.00 0.41 0.00 -0.07
42 1.0456 0.00 0.36 0.00 0.01
43 2.0232 0.00 -0.12 0.00 -0.10
44 2.0232 0.00 -0.15 0.00 -0.12
45 2.0232 0.00 -0.19 0.00 -0.13
46 2.0232 0.00 -0.24 0.00 -0.04
47 2.0232 0.00 -0.13 0.00 -0.16
48 2.0254 0.00 -0.14 0.00 -0.14
49 2.0254 0.00 -0.54 0.00 0.04
50 8.0024 0.00 0.05 0.00 0.03
51 8.0025 0.00 -0.00 0.00 0.06
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.
09KN30 quality flag:3 Type: 7:2EEEEE 7:2EEEEE 7:2EEEEE axisobj 68.520 68.520 68.520 ecceobj 0.555 0.555 0.555 incobj 4.620 4.620 4.620 qmin 29.806 29.806 29.806 qmax 111.529 111.526 111.532 amean 69.408 69.408 69.408 amin 68.359 68.358 68.376 amax 70.968 70.966 70.969 emean 0.561 0.561 0.561 emin 0.552 0.552 0.552 emax 0.572 0.572 0.572 imean 6.195 6.195 6.195 imin 6.115 6.115 6.115 imax 6.260 6.260 6.260 excite_mean 0.571 0.571 0.571 fracstop 1.000 1.000 1.000 cjmean 2.933 2.933 2.933 libcent 0 180.5 179.7 179.8 libamp 0 53.5 52.5 52.7 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 128.4 128.4 128.4 kozaiamp 180.0 180.0 180.0