Orbit Fit and Astrometric record for 19CC30

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: 19CC30    
# Created Tue Apr  1 01:11:10 2025
# Orbit generated from Bernstein formalism
# Fitting     18 observations of     19
# Arc:   2.14y
# First observation: 2018/03/18
#  Last observation: 2019/03/03
Preliminary a, adot, b, bdot, g, gdot:
  -0.000356   0.023303  -0.000003   0.001072   0.023730   0.000000
# Chi-squared of fit:     8.04 DOF:     30 RMS:  0.12
# Min/Max residuals:    -0.29    0.30
# Exact a, adot, b, bdot, g, gdot:
 -1.485905E-07  2.289525E-02 -6.302894E-06  1.058581E-03  2.359691E-02  1.740485E-05
# Covariance matrix:
  4.9340E-11 -9.5031E-11  5.8472E-12 -6.5492E-12 -5.6985E-11 -1.5789E-09
 -9.5031E-11  2.0260E-10 -1.2912E-11  1.4327E-11  1.2927E-10  3.4527E-09
  5.8472E-12 -1.2912E-11  2.0887E-12 -1.6240E-12 -8.3997E-12 -2.2188E-10
 -6.5492E-12  1.4327E-11 -1.6240E-12  1.4399E-12  9.2700E-12  2.4571E-10
 -5.6985E-11  1.2927E-10 -8.3997E-12  9.2700E-12  8.5366E-11  2.2336E-09
 -1.5789E-09  3.4527E-09 -2.2188E-10  2.4571E-10  2.2336E-09  5.9211E-08
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.836270  177.384447    0.904802    0.019597   -0.391311  2457764.840053
# Heliocentric elements and errors
Epoch:              2457760.5000  =  2017/01/07
Mean Anomaly:          323.28574 +/-    13.195
Argument of Peri:       85.31207 +/-    14.405
Long of Asc Node:      130.10200 +/-     0.019
Inclination:             3.89722 +/-     0.001
Eccentricity:         0.03484184 +/-    0.0064
Semi-Major Axis:     43.99142628 +/-    0.0184
Time of Perihelion: 2468629.3287 +/-    3906.2
Perihelion:          42.45868396 +/-    0.2840
Aphelion:            45.52416859 +/-    0.2841
Period (y)              291.7832 +/-      0.18
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -42.63589515 +/-    0.0166
Ecliptic Y            2.84927461 +/-    0.0005
Ecliptic Z            2.09664955 +/-    0.0009
Ecliptic XDOT        -0.00011446 +/-    0.0000
Ecliptic YDOT        -0.00266057 +/-    0.0000
Ecliptic ZDOT         0.00012272 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.78240129 +/-    0.0165
Geocenter to KBO     42.37842937 +/-    0.0166
# Hcoef:  7.59

The following table shows the complete astrometric record for 19CC30. 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 (19CC30) followed by the observatory code and reference code for the source of the astrometry.

2017 01  11.339252 11 54 54.989  +03 38 32.60  22.0z 19CC30    W84  C~8HR5      
2018 03  18.46982  11 56 19.50   +03 36 46.6   23.7i 19CC30    T09  C~83G7      
2018 03  18.51105  11 56 19.31   +03 36 47.7   23.8i 19CC30    T09  C~83G7      
2018 03  18.58405  11 56 19.00   +03 36 49.9   23.8i 19CC30    T09  C~83G7      
2018 04  12.121738 11 54 34.248  +03 48 04.07  23.6V 19CC30    W84  C~8HR5      
2018 04  13.119460 11 54 30.310  +03 48 28.33  24.4V 19CC30    W84  C~8HR5      
2018 04  24.40683  11 53 48.60   +03 52 39.7   23.3z 19CC30    T09  C~83G7      
2018 04  24.45059  11 53 48.46   +03 52 40.4   23.8z 19CC30    T09  C~83G7      
2018 04  24.45326  11 53 48.44   +03 52 40.7   23.9z 19CC30    T09  C~83G7      
2018 04  24.50141  11 53 48.29   +03 52 41.6   23.3z 19CC30    T09  C~83G7      
2019 02  05.54825  12 03 57.79   +02 49 20.4   23.9i 19CC30    T09  C~83G7      
2019 02  05.59538  12 03 57.66   +02 49 21.3   23.9i 19CC30    T09  C~83G7      
2019 02  05.62229  12 03 57.59   +02 49 21.8   23.7i 19CC30    T09  C~83G7      
2019 02  05.66253  12 03 57.46   +02 49 22.6   23.7i 19CC30    T09  C~83G7      
2019 03  03.51493  12 02 24.79   +03 00 46.2   23.9z 19CC30    T09  C~83G7      
2019 03  03.52297  12 02 24.77   +03 00 46.4   23.8z 19CC30    T09  C~83G7      
2019 03  03.57682  12 02 24.54   +03 00 48.1   23.9z 19CC30    T09  C~83G7      
2019 03  03.57949  12 02 24.54   +03 00 48.3   24.1z 19CC30    T09  C~83G7      
2019 03  03.61704  12 02 24.38   +03 00 49.1   23.9z 19CC30    T09  C~83G7      

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 (   3.20)      0.00 (   1.45)
     2   1.1804   1202.66    -0.06     406.74     0.01
     3   1.1805   1199.61    -0.08     406.61    -0.12
     4   1.1807   1194.48     0.12     406.78     0.03
     5   1.2479   -512.31    -0.04     400.63    -0.00
     6   1.2506   -576.04     0.14     399.42    -0.04
     7   1.2815  -1248.77    -0.15     381.60     0.02
     8   1.2816  -1250.97     0.10     381.41    -0.07
     9   1.2816  -1251.36    -0.15     381.57     0.10
    10   1.2818  -1253.78     0.11     381.50     0.14
    11   2.0676   8636.74    -0.21     538.94     0.02
    12   2.0678   8634.59    -0.02     538.98    -0.08
    13   2.0679   8633.43     0.15     539.02    -0.12
    14   2.0680   8631.32     0.04     538.97    -0.29
    15   2.1387   7083.27    -0.16     610.07    -0.04
    16   2.1388   7082.92     0.04     610.14     0.01
    17   2.1389   7079.07    -0.05     610.32     0.12
    18   2.1389   7078.99     0.06     610.50     0.30
    19   2.1390   7076.47     0.14     610.28     0.02

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.

19CC30    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.591    43.680    43.544
ecceobj         0.026     0.023     0.037
incobj          3.904     3.905     3.903
qmin           41.936    41.851    41.317
qmax           45.749    46.014    46.333
amean          43.760    43.842    43.726
amin           43.420    43.496    43.375
amax           44.104    44.185    44.080
emean           0.023     0.026     0.040
emin            0.006     0.010     0.026
emax            0.038     0.042     0.052
imean           2.861     2.851     2.927
imin            2.184     2.189     2.162
imax            3.542     3.521     3.704
excite_mean     0.055     0.056     0.065
fracstop        1.000     1.000     1.000
cjmean          3.095     3.096     3.093

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       180.4     180.3     185.4
kozaiamp        180.0     180.0     179.9