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: 07CQ79
# Created Sat Apr 20 01:12:52 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 26 observations of 26
# Arc: 16.10y
# First observation: 2005/02/10
# Last observation: 2021/03/20
# Chi-squared of fit: 23.24 DOF: 46 RMS: 0.17
# Min/Max residuals: -0.43 0.30
# Exact a, adot, b, bdot, g, gdot:
1.379518E-05 2.056516E-02 -1.138345E-06 -3.069767E-04 2.230373E-02 -1.644244E-03
# Covariance matrix:
1.6246E-13 -5.7693E-14 -7.2479E-16 7.8985E-16 6.2930E-14 -1.4939E-13
-5.7693E-14 4.2251E-14 6.8521E-16 -6.3626E-16 -1.7311E-14 1.1978E-13
-7.2479E-16 6.8521E-16 9.4886E-14 -7.4438E-15 5.5291E-16 1.9640E-15
7.8985E-16 -6.3626E-16 -7.4438E-15 1.3758E-15 3.2467E-16 -1.8669E-15
6.2930E-14 -1.7311E-14 5.5291E-16 3.2467E-16 3.0607E-13 -6.6107E-14
-1.4939E-13 1.1978E-13 1.9640E-15 -1.8669E-15 -6.6107E-14 3.5171E-13
# lat0 lon0 xBary yBary zBary JD0
0.833240 133.084570 -0.142680 0.014265 -0.973029 2453411.798283
# Heliocentric elements and errors
Epoch: 2453412.5000 = 2005/02/11
Mean Anomaly: 272.58711 +/- 0.071
Argument of Peri: 232.71735 +/- 0.057
Long of Asc Node: 356.93612 +/- 0.003
Inclination: 1.18084 +/- 0.000
Eccentricity: 0.07839042 +/- 0.0000
Semi-Major Axis: 45.69275695 +/- 0.0046
Time of Perihelion: 2480805.6793 +/- 25.6
Perihelion: 42.11088262 +/- 0.0045
Aphelion: 49.27463128 +/- 0.0052
Period (y) 308.8725 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -31.39659645 +/- 0.0008
Ecliptic Y 33.35486417 +/- 0.0008
Ecliptic Z 0.65195162 +/- 0.0000
Ecliptic XDOT -0.00170641 +/- 0.0000
Ecliptic YDOT -0.00187856 +/- 0.0000
Ecliptic ZDOT -0.00004055 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.81182138 +/- 0.0008
Geocenter to KBO 44.83563882 +/- 0.0011
# Hcoef: 6.81
The following table shows the complete astrometric record for 07CQ79. 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 (07CQ79) followed by the observatory code and reference code for the source of the astrometry.
2005 02 10.29754 09 03 11.68 +17 41 15.3 24.3g 07CQ79 568 C~0VEU 2005 02 10.38053 09 03 11.29 +17 41 17.0 24.0g 07CQ79 568 C~0VEU 2005 02 10.41998 09 03 11.09 +17 41 17.4 24.6g 07CQ79 568 C~0VEU 2005 02 15.31900 09 02 48.98 +17 42 49.6 23.7g 07CQ79 568 C~0VEU 2005 04 11.28431 08 59 57.42 +17 54 01.8 23.1i 07CQ79 568 C~0VEU 2005 04 11.31026 08 59 57.38 +17 54 01.9 23.2i 07CQ79 568 C~0VEU 2005 04 11.33986 08 59 57.35 +17 54 02.1 23.3i 07CQ79 568 C~0VEU 2006 03 02.21268 09 06 29.99 +17 25 47.3 23.1R 07CQ79 695 C~0VX4 2006 03 02.26884 09 06 29.76 +17 25 48.4 07CQ79 695 C~0VX4 2006 03 02.32534 09 06 29.54 +17 25 49.5 07CQ79 695 C~0VX4 2007 02 14.44934 09 12 21.71 +16 59 06.3 07CQ79 568 C74770 2007 02 14.48688 09 12 21.55 +16 59 07.2 07CQ79 568 C74770 2007 02 14.52049 09 12 21.40 +16 59 07.7 07CQ79 568 C74770 2007 02 15.46372 09 12 17.15 +16 59 26.5 07CQ79 568 C74770 2007 02 21.34561 09 11 51.03 +17 01 19.1 23.2R 07CQ79 675 C~0VEU 2007 02 21.39879 09 11 50.79 +17 01 20.1 23.2R 07CQ79 675 C~0VEU 2007 11 08.49501 09 21 29.97 +16 15 40.4 22.2r 07CQ79 695 C~0VEU 2007 11 09.47327 09 21 30.82 +16 15 37.5 21.9r 07CQ79 695 C~0VEU 2013 03 13.13379 09 38 37.95 +14 47 37.7 23.3R 07CQ79 G37 C~0qSl 2013 03 13.18756 09 38 37.73 +14 47 38.6 07CQ79 G37 C~0qSl 2020 02 18.231540 10 13 10.637 +11 35 19.33 23.5G 07CQ79 G37 C~3ibO 2020 02 18.321500 10 13 10.228 +11 35 21.61 07CQ79 G37 C~3ibO 2020 02 18.383340 10 13 09.958 +11 35 23.18 07CQ79 G37 C~3ibO 2021 03 20.173250 10 15 40.150 +11 19 39.07 23.4G 07CQ79 G37 C~4hnQ 2021 03 20.211860 10 15 39.996 +11 19 40.08 07CQ79 G37 C~4hnQ 2021 03 20.250690 10 15 39.842 +11 19 40.97 07CQ79 G37 C~4hnQ
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 0.22 0.00 0.14
2 0.0002 0.00 0.13 0.00 0.24
3 0.0003 0.00 -0.13 0.00 -0.11
4 0.0137 0.00 -0.35 0.00 0.17
5 0.1642 0.00 0.14 0.00 0.05
6 0.1643 0.00 0.04 0.00 0.06
7 0.1644 0.00 0.15 0.00 0.15
8 1.0538 0.00 -0.23 0.00 -0.43
9 1.0540 0.00 -0.24 0.00 -0.27
10 1.0541 0.00 -0.09 0.00 -0.10
11 2.0100 0.00 0.04 0.00 0.02
12 2.0101 0.00 0.23 0.00 0.19
13 2.0102 0.00 0.29 0.00 0.03
14 2.0128 0.00 0.23 0.00 0.30
15 2.0289 0.00 -0.16 0.00 -0.25
16 2.0290 0.00 -0.23 0.00 -0.24
17 2.7411 0.00 -0.14 0.00 -0.07
18 2.7438 0.00 0.11 0.00 0.00
19 8.0844 0.00 0.06 0.00 0.10
20 8.0846 0.00 -0.12 0.00 0.02
21 15.0197 0.00 0.03 0.00 -0.04
22 15.0199 0.00 -0.02 0.00 0.02
23 15.0201 0.00 0.12 0.00 0.07
24 16.1037 0.00 0.01 0.00 -0.18
25 16.1038 0.00 -0.02 0.00 0.02
26 16.1039 0.00 -0.05 0.00 0.09
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.
07CQ79 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.457 45.456 45.457 ecceobj 0.074 0.073 0.074 incobj 1.185 1.185 1.185 qmin 41.382 41.411 41.391 qmax 49.872 49.861 49.866 amean 45.503 45.503 45.503 amin 45.130 45.134 45.139 amax 45.896 45.897 45.893 emean 0.073 0.073 0.073 emin 0.060 0.060 0.060 emax 0.087 0.086 0.087 imean 2.275 2.275 2.275 imin 1.761 1.761 1.761 imax 2.680 2.680 2.681 excite_mean 0.083 0.083 0.083 fracstop 1.000 1.000 1.000 cjmean 3.111 3.111 3.111 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 181.9 182.0 181.8 kozaiamp 179.9 179.9 179.9