Orbit Fit and Astrometric record for 19GM188

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: 19GM188   
# Created Tue Apr  1 01:11:14 2025
# Orbit generated from Bernstein formalism
# Fitting     11 observations of     11
# Arc:  59.02d
# First observation: 2019/02/05
#  Last observation: 2019/04/05
Preliminary a, adot, b, bdot, g, gdot:
  -0.000001   0.019527   0.000001   0.000459   0.021570   0.000000
# Chi-squared of fit:     6.66 DOF:     16 RMS:  0.14
# Min/Max residuals:    -0.19    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.351226E-05  1.920832E-02  1.184423E-06  4.609106E-04  2.142505E-02  7.023602E-03
# Covariance matrix:
  6.4566E-13  2.2401E-10 -1.1786E-13 -3.8125E-12  4.6911E-11  2.7655E-09
  2.2401E-10  3.2518E-07 -1.6323E-10 -5.5674E-09  6.5339E-08  3.3222E-06
 -1.1786E-13 -1.6323E-10  4.8881E-13  3.8229E-14 -3.2867E-11 -1.6901E-09
 -3.8125E-12 -5.5674E-09  3.8229E-14  1.2304E-10 -1.1176E-09 -5.6495E-08
  4.6911E-11  6.5339E-08 -3.2867E-11 -1.1176E-09  1.3152E-08  6.7504E-07
  2.7655E-09  3.3222E-06 -1.6901E-09 -5.6495E-08  6.7504E-07  3.6433E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.809808 -178.342508    0.710446    0.046060   -0.690710  2458520.055801
# Heliocentric elements and errors
Epoch:              2458520.5000  =  2019/02/06
Mean Anomaly:           55.38118 +/-    31.593
Argument of Peri:      334.96700 +/-    12.925
Long of Asc Node:      111.93836 +/-     0.818
Inclination:             4.02365 +/-     0.022
Eccentricity:         0.33807696 +/-    0.3062
Semi-Major Axis:     52.23725733 +/-   14.6006
Time of Perihelion: 2437306.2008 +/-    8206.6
Perihelion:          34.57704412 +/-   18.6893
Aphelion:            69.89747053 +/-   25.2502
Period (y)              377.5537 +/-    158.29
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -47.26314236 +/-    0.2492
Ecliptic Y           -0.66505422 +/-    0.0072
Ecliptic Z            3.10130316 +/-    0.0166
Ecliptic XDOT        -0.00081222 +/-    0.0008
Ecliptic YDOT        -0.00248100 +/-    0.0001
Ecliptic ZDOT         0.00011820 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.36945223 +/-    0.2486
Geocenter to KBO     46.67433017 +/-    0.2498
# Hcoef:  7.84

The following table shows the complete astrometric record for 19GM188. 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 (19GM188) followed by the observatory code and reference code for the source of the astrometry.

2019 02  05.55500  12 12 08.79   +02 50 10.5   23.9i 19GM188   T09  C~8FzY      
2019 02  05.62497  12 12 08.60   +02 50 12.4   24.2i 19GM188   T09  C~8FzY      
2019 02  05.62764  12 12 08.60   +02 50 12.2   24.1i 19GM188   T09  C~8FzY      
2019 03  03.51760  12 10 46.10   +03 00 33.8   23.8z 19GM188   T09  C~8FzY      
2019 03  03.58217  12 10 45.88   +03 00 35.6   24.3z 19GM188   T09  C~8FzY      
2019 04  04.44671  12 08 40.17   +03 14 33.3   25.7g 19GM188   T09  C~8FzY      
2019 04  04.46994  12 08 40.09   +03 14 34.2   25.1g 19GM188   T09  C~8FzY      
2019 04  04.49303  12 08 39.98   +03 14 34.5   25.2g 19GM188   T09  C~8FzY      
2019 04  04.51189  12 08 39.93   +03 14 34.8   25.4g 19GM188   T09  C~8FzY      
2019 04  05.53288  12 08 35.92   +03 14 59.9   24.2r 19GM188   T09  C~8HRL      
2019 04  05.57477  12 08 35.77   +03 15 00.9   24.9r 19GM188   T09  C~8HRL      

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     0.14       0.00    -0.17
     2   0.0002     -3.37    -0.17       0.61     0.19
     3   0.0002     -3.29     0.03       0.43    -0.00
     4   0.0711  -1384.49    -0.15      78.85    -0.13
     5   0.0713  -1388.23     0.16      79.19     0.10
     6   0.1585  -3449.22    -0.09      99.24    -0.09
     7   0.1586  -3450.68    -0.05      99.59     0.28
     8   0.1586  -3452.31    -0.19      99.21    -0.07
     9   0.1587  -3453.11     0.22      99.19    -0.07
    10   0.1615  -3518.21    -0.05      98.36    -0.06
    11   0.1616  -3520.67     0.16      98.38     0.01

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.

19GM188    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0