Orbit Fit and Astrometric record for 07CQ79

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 Wed Dec 25 02:08:53 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