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: 03QC112 # Created Wed Apr 24 01:11:28 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 33 observations of 33 # Arc: 14.08y # First observation: 2003/08/24 # Last observation: 2017/09/23 # Chi-squared of fit: 40.12 DOF: 60 RMS: 0.19 # Min/Max residuals: -0.66 0.45 # Exact a, adot, b, bdot, g, gdot: 1.637751E-05 4.070581E-02 -5.162566E-06 -1.334994E-02 4.036666E-02 4.977756E-03 # Covariance matrix: 4.1960E-13 -3.4936E-13 -3.2982E-14 4.3016E-14 4.0735E-13 -8.6166E-13 -3.4936E-13 6.3227E-13 5.4224E-14 -6.7664E-14 -2.7881E-13 1.3333E-12 -3.2982E-14 5.4224E-14 1.8399E-13 -9.8763E-14 -2.1542E-14 2.0442E-13 4.3016E-14 -6.7664E-14 -9.8763E-14 2.7728E-13 3.3496E-14 -2.5242E-13 4.0735E-13 -2.7881E-13 -2.1542E-14 3.3496E-14 9.5684E-13 -7.0998E-13 -8.6166E-13 1.3333E-12 2.0442E-13 -2.5242E-13 -7.0998E-13 4.9537E-12 # lat0 lon0 xBary yBary zBary JD0 -1.856335 -15.364966 0.247027 -0.031847 -0.984360 2452875.770213 # Heliocentric elements and errors Epoch: 2452876.5000 = 2003/08/25 Mean Anomaly: 152.76383 +/- 0.001 Argument of Peri: 21.88327 +/- 0.000 Long of Asc Node: 158.67910 +/- 0.000 Inclination: 18.28932 +/- 0.000 Eccentricity: 0.27806127 +/- 0.0000 Semi-Major Axis: 20.45902200 +/- 0.0000 Time of Perihelion: 2438533.3752 +/- 0.1 Perihelion: 14.77016033 +/- 0.0000 Aphelion: 26.14788368 +/- 0.0000 Period (y) 92.5413 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.75645061 +/- 0.0000 Ecliptic Y -7.05568983 +/- 0.0000 Ecliptic Z -0.80262600 +/- 0.0000 Ecliptic XDOT 0.00102337 +/- 0.0000 Ecliptic YDOT 0.00257482 +/- 0.0000 Ecliptic ZDOT -0.00091574 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 25.75473868 +/- 0.0000 Geocenter to KBO 24.77290945 +/- 0.0000 # Hcoef: 8.64
The following table shows the complete astrometric record for 03QC112. 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 (03QC112) followed by the observatory code and reference code for the source of the astrometry.
2003 08 24.26947 23 06 17.37 -07 45 44.1 21.8R 03QC112 807 Ci4592 2003 08 24.36129 23 06 16.76 -07 45 48.7 03QC112 807 Ci4592 2003 09 03.10301 23 05 07.92 -07 54 24.7 22.6R 03QC112 304 Ci4592 2003 09 03.17936 23 05 07.37 -07 54 29.3 03QC112 304 Ci4592 2003 10 22.13867 22 59 53.62 -08 32 03.6 22.7R 03QC112 695 Cj4700 2003 10 22.21847 22 59 53.24 -08 32 06.3 03QC112 695 Cj4700 2003 10 23.12160 22 59 49.17 -08 32 34.9 03QC112 304 Ci9432 2003 10 23.14826 22 59 49.02 -08 32 35.6 03QC112 304 Ci9432 2004 08 13.17600 23 17 12.68 -07 24 46.6 21.6R 03QC112 807 C~2i4D 2004 08 13.28230 23 17 12.00 -07 24 51.8 03QC112 807 C~2i4D 2009 09 18.33000 00 01 17.68 -06 45 24.3 22.5R 03QC112 688 C~2i4D 2009 09 18.36047 00 01 17.47 -06 45 25.8 03QC112 688 C~2i4D 2013 10 13.229016 00 36 30.61 -05 58 06.6 22.8i 03QC112 W84 C~351P 2013 11 08.081157 00 33 46.78 -06 13 58.9 23.2r 03QC112 W84 C~351P 2013 11 08.082535 00 33 46.76 -06 13 58.9 22.8i 03QC112 W84 C~351P 2013 11 08.083900 00 33 46.77 -06 13 59.0 22.4z 03QC112 W84 C~351P 2013 11 22.057662 00 32 41.71 -06 18 28.4 23.1r 03QC112 W84 C~351P 2014 10 03.301308 00 47 16.12 -05 31 19.2 22.6r 03QC112 W84 C~351P 2014 10 03.302685 00 47 16.11 -05 31 19.3 22.5i 03QC112 W84 C~351P 2014 11 14.127836 00 42 43.92 -05 58 19.7 22.6i 03QC112 W84 C~351P 2014 11 16.044074 00 42 34.38 -05 58 59.0 22.5z 03QC112 W84 C~351P 2016 10 01.215856 01 06 40.60 -04 51 09.7 22.4i 03QC112 W84 C~351P 2016 10 01.217222 01 06 40.59 -04 51 09.8 22.9r 03QC112 W84 C~351P 2016 10 01.218600 01 06 40.56 -04 51 10.3 23.6g 03QC112 W84 C~351P 2016 11 05.132187 01 02 35.89 -05 16 51.3 22.3z 03QC112 W84 C~351P 2016 11 07.208449 01 02 22.91 -05 17 54.4 22.1z 03QC112 W84 C~351P 2017 08 28.302755 01 19 47.09 -03 59 00.9 23.3r 03QC112 W84 C~351P 2017 08 28.304120 01 19 47.08 -03 59 01.0 22.6i 03QC112 W84 C~351P 2017 09 18.273993 01 17 51.58 -04 18 35.3 22.3i 03QC112 W84 C~351P 2017 09 18.275370 01 17 51.57 -04 18 35.4 22.8r 03QC112 W84 C~351P 2017 09 18.317477 01 17 51.29 -04 18 37.8 22.3z 03QC112 W84 C~351P 2017 09 23.34876 01 17 18.26 -04 23 22.4 22.4R 03QC112 G37 C~3iGi 2017 09 23.43850 01 17 17.61 -04 23 27.4 03QC112 G37 C~3iGi
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 -0.08 0.00 -0.05
2 0.0003 0.00 0.45 0.00 0.16
3 0.0269 0.00 0.18 0.00 0.11
4 0.0271 0.00 0.29 0.00 -0.42
5 0.1612 0.00 -0.29 0.00 0.03
6 0.1614 0.00 -0.34 0.00 -0.06
7 0.1639 0.00 0.18 0.00 0.16
8 0.1639 0.00 -0.23 0.00 0.31
9 0.9717 0.00 0.15 0.00 -0.02
10 0.9720 0.00 -0.06 0.00 0.09
11 6.0700 0.00 -0.40 0.00 -0.09
12 6.0701 0.00 -0.27 0.00 0.05
13 10.1382 0.00 0.18 0.00 -0.29
14 10.2089 0.00 0.01 0.00 -0.11
15 10.2089 0.00 -0.18 0.00 -0.07
16 10.2089 0.00 0.08 0.00 -0.13
17 10.2472 0.00 0.04 0.00 -0.03
18 11.1103 0.00 0.17 0.00 -0.09
19 11.1103 0.00 0.17 0.00 -0.12
20 11.2248 0.00 0.17 0.00 -0.08
21 11.2300 0.00 0.28 0.00 -0.03
22 13.1059 0.00 0.17 0.00 0.34
23 13.1059 0.00 0.17 0.00 0.32
24 13.1060 0.00 -0.13 0.00 -0.11
25 13.2015 0.00 -0.00 0.00 -0.05
26 13.2072 0.00 -0.04 0.00 -0.10
27 14.0124 0.00 0.08 0.00 -0.01
28 14.0124 0.00 0.02 0.00 -0.04
29 14.0698 0.00 0.09 0.00 0.04
30 14.0698 0.00 0.07 0.00 0.02
31 14.0699 0.00 -0.00 0.00 0.01
32 14.0837 0.00 -0.11 0.00 0.17
33 14.0840 0.00 -0.66 0.00 0.21
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.
03QC112 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 20.557 20.557 20.557 ecceobj 0.272 0.272 0.272 incobj 18.216 18.216 18.216 qmin 14.813 14.813 14.813 qmax 26.444 26.446 26.443 amean 20.416 20.622 20.590 amin 20.083 20.443 20.205 amax 21.195 20.892 20.844 emean 0.239 0.225 0.252 emin 0.198 0.182 0.193 emax 0.279 0.279 0.279 imean 17.174 17.779 17.656 imin 15.996 17.152 17.154 imax 18.221 19.097 19.186 excite_mean 0.381 0.380 0.395 fracstop 0.026 0.030 0.008 cjmean 3.001 2.994 2.990 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 137.9 140.5 60.6 kozaiamp 121.9 127.9 34.9