Orbit Fit and Astrometric record for 612019

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: 612019    
# Created Wed Dec 25 02:07:36 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     43 observations of     44
# Arc:  21.11y
# First observation: 1994/03/13
#  Last observation: 2015/04/24
# Chi-squared of fit:   509.91 DOF:     80 RMS:  0.61
# Min/Max residuals:    -1.87    1.20
# Exact a, adot, b, bdot, g, gdot:
  1.807162E-05  2.104652E-02 -5.253524E-06 -6.092089E-04  2.285425E-02  4.364376E-04
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.032617 -161.008363    0.445457    0.000529   -0.888770  2449424.988597
# Heliocentric elements and errors
Epoch:              2449424.5000  =  1994/03/13
Mean Anomaly:          164.55195 +/-     0.000
Argument of Peri:       13.27507 +/-     0.000
Long of Asc Node:       19.52408 +/-     0.000
Inclination:             1.65702 +/-     0.000
Eccentricity:         0.03680169 +/-    0.0000
Semi-Major Axis:     43.11597208 +/-    0.0000
Time of Perihelion: 2402157.6970 +/-       0.0
Perihelion:          41.52923124 +/-    0.0000
Aphelion:            44.70271291 +/-    0.0000
Period (y)              283.1167 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -42.35962902 +/-    0.0000
Ecliptic Y          -14.11467503 +/-    0.0000
Ecliptic Z            0.02469387 +/-    0.0000
Ecliptic XDOT         0.00077609 +/-    0.0000
Ecliptic YDOT        -0.00240502 +/-    0.0000
Ecliptic ZDOT        -0.00007308 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.64932579 +/-    0.0000
Geocenter to KBO     43.75555313 +/-    0.0000
# Hcoef:  7.15

The following table shows the complete astrometric record for 612019. 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 (612019) followed by the observatory code and reference code for the source of the astrometry.

1994 03  13.4879   13 10 08.82   -07 24 27.2   23.3R 612019    568  A23286      
1994 03  13.5000   13 10 08.79   -07 24 27.2         612019    568  A23286      
1994 03  13.5120   13 10 08.74   -07 24 26.9         612019    568  A23286      
1994 03  14.5250   13 10 04.86   -07 24 04.8         612019    568  A23286      
1994 03  14.5408   13 10 04.80   -07 24 04.1         612019    568  A23286      
1994 03  15.5385   13 10 01.00   -07 23 41.6         612019    568  A23286      
1994 03  15.5508   13 10 00.99   -07 23 41.3         612019    568  A23286      
1994 03  15.5976   13 10 00.75   -07 23 40.3         612019    568  A23286      
1994 04  13.4916   13 07 59.79   -07 11 30.8   23. R 612019    568  A23389      
1994 04  13.5038   13 07 59.71   -07 11 30.3         612019    568  A23389      
1994 04  15.4842   13 07 51.26   -07 10 39.7         612019    568  A23389      
1994 05  05.40132  13 06 30.25   -07 02 31.2   23.2V 612019    568  C23582      
1994 05  05.48792  13 06 29.98   -07 02 28.9         612019    568  C23582      
1994 05  07.34912  13 06 23.06   -07 01 46.9   23.5V 612019    568  C23582      
1994 05  10.89722  13 06 10.30   -07 00 30.8   23.4R 612019    950  C23646      
1994 06  07.2909   13 04 54.99   -06 52 57.3         612019    568  A23582      
1994 06  07.3065   13 04 54.99   -06 52 57.3         612019    568  A23582      
1994 06  07.3432   13 04 54.89   -06 52 56.8         612019    568  A23582      
1994 06  07.3481   13 04 54.86   -06 52 56.6         612019    568  A23582      
1995 02  25.5504   13 15 30.47   -07 59 10.6   23.5R 612019    568  A24813      
1995 02  25.5595   13 15 30.44   -07 59 10.4         612019    568  A24813      
1995 02  26.5354   13 15 27.59   -07 58 54.0         612019    568  A24813      
1995 02  27.5361   13 15 24.62   -07 58 36.9         612019    568  A24813      
1995 02  27.5469   13 15 24.59   -07 58 36.5         612019    568  A24813      
1995 04  01.0377   13 13 22.37   -07 46 29.7         612019    950  C25182      
1995 04  01.1500   13 13 21.97   -07 46 25.1   23.8R 612019    950  C25029      
1997 06  03.23343  13 18 18.54   -08 21 07.7         612019    711  C30029      
1997 06  03.24113  13 18 18.69   -08 21 09.7         612019    711  C30029      
1997 06  04.21633  13 18 16.24   -08 20 53.3         612019    711  C30029      
1997 06  04.23987  13 18 16.23   -08 20 52.8         612019    711  C30029      
1997 06  04.28622  13 18 16.18   -08 20 53.4         612019    711  C30029      
1997 06  04.29476  13 18 16.04   -08 20 52.4         612019    711  C30029      
1998 05  24.94307  13 23 11.07   -08 52 25.2         612019    950  Ca1681      
1998 05  25.00008  13 23 10.89   -08 52 24.5         612019    950  Ca1681      
1998 05  25.04237  13 23 10.77   -08 52 23.0         612019    950  Ca1681      
1998 06  23.18818  13 22 09.52   -08 46 25.6   23.3R 612019    705  Ca1681      
1998 06  24.22135  13 22 08.48   -08 46 19.8         612019    705  Ca1681      
2000 06  28.94307  13 30 53.21   -09 42 18.8         612019    950  Cb7358      
2000 06  29.91659  13 30 52.56   -09 42 14.9         612019    950  Cb7358      
2014 04  30.14005  14 38 18.15   -16 07 38.2         612019    W84  C~2fbj      
2014 04  30.20903  14 38 17.84   -16 07 36.7   23.8V 612019    W84  C~2fbj      
2014 05  01.12675  14 38 13.66   -16 07 17.6         612019    W84  C~2fbj      
2015 04  24.25229  14 43 31.30   -16 33 33.2   23.4R 612019    G37  C~1Re7      
2015 04  24.42161  14 43 30.54   -16 33 29.6         612019    G37  C~1Re7      

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    -0.29       0.00     1.20
     2   0.0000      0.00    -0.04       0.00     0.92
     3   0.0001      0.00    -0.10       0.00     0.95
     4   0.0028      0.00    -0.44       0.00    -0.11
     5   0.0029      0.00    -0.42       0.00     0.23
     6   0.0056      0.00     0.14       0.00    -0.32
     7   0.0056      0.00     0.72       0.00    -0.30
     8   0.0058      0.00    -0.12       0.00    -0.39
     9   0.0849      0.00     0.12       0.00     0.42
    10   0.0849      0.00    -0.28       0.00     0.60
    11   0.0903      0.00     0.22       0.00     0.01
    12   0.1449      0.00    -0.77       0.00    -0.06
    13   0.1451      0.00     0.15       0.00     0.27
    14   0.1502      0.00     0.11       0.00     0.49
    15   0.1599      0.00     0.55       0.00    -0.54
    16   0.2349      0.00     0.52       0.00     0.90
    17   0.2350      0.00     0.98       0.00     0.73
    18   0.2351      0.00     0.54       0.00     0.82
    19   0.2351      0.00     0.23       0.00     0.97
    20   0.9557      0.00    -0.40       0.00    -0.95
    21   0.9557      0.00    -0.44       0.00    -0.91
    22   0.9584      0.00    -0.49       0.00    -1.34
    23   0.9611      0.00    -0.30       0.00    -1.87
    24   0.9611      0.00    -0.24       0.00    -1.66
    25   1.0501      0.00    -0.63       0.00    -1.75
    26   1.0504      0.00     0.67       0.00    -0.01
    27   3.2245      0.00    -0.88       0.00    -0.24
    28   3.2245      0.00 (   1.65)      0.00 (  -2.35)
    29   3.2272      0.00    -0.60       0.00     0.51
    30   3.2272      0.00     0.10       0.00     0.69
    31   3.2274      0.00     1.00       0.00    -0.55
    32   3.2274      0.00    -0.80       0.00     0.33
    33   4.1984      0.00     0.30       0.00     0.03
    34   4.1985      0.00     0.29       0.00    -0.30
    35   4.1986      0.00     0.48       0.00     0.44
    36   4.2784      0.00     0.04       0.00     0.64
    37   4.2813      0.00    -0.16       0.00     0.55
    38   6.2956      0.00     0.00       0.00    -0.18
    39   6.2982      0.00     0.34       0.00    -0.12
    40  20.1305      0.00    -0.13       0.00    -0.13
    41  20.1307      0.00    -0.00       0.00    -0.05
    42  20.1332      0.00    -0.24       0.00     0.04
    43  21.1137      0.00     0.04       0.00    -0.08
    44  21.1141      0.00     0.20       0.00     0.16

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.

612019    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.649    42.649    42.649
ecceobj         0.048     0.048     0.048
incobj          1.661     1.661     1.661
qmin           39.681    39.680    39.683
qmax           46.414    46.412    46.417
amean          42.950    42.950    42.950
amin           42.611    42.609    42.614
amax           43.298    43.298    43.300
emean           0.053     0.053     0.053
emin            0.030     0.030     0.030
emax            0.072     0.072     0.072
imean           1.825     1.825     1.825
imin            0.436     0.436     0.436
imax            2.744     2.744     2.743
excite_mean     0.063     0.063     0.063
fracstop        1.000     1.000     1.000
cjmean          3.084     3.084     3.084

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       180.2     180.3     180.2
kozaiamp        180.0     180.0     180.0