Orbit Fit and Astrometric record for 19VP53

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: 19VP53    
# Created Tue Apr  1 01:11:17 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     28 observations of     28
# Arc:  14.17y
# First observation: 2005/10/26
#  Last observation: 2019/12/28
# Chi-squared of fit:     7.21 DOF:     50 RMS:  0.09
# Min/Max residuals:    -0.20    0.19
# Exact a, adot, b, bdot, g, gdot:
  1.649165E-05  2.597389E-02  7.286325E-07  1.074796E-03  2.526446E-02 -3.428969E-04
# Covariance matrix:
  4.8903E-13 -8.4714E-14  2.7267E-15 -2.1883E-15 -2.9628E-14 -1.3168E-13
 -8.4714E-14  4.8407E-14 -2.6917E-15  1.9023E-15 -2.7353E-15  1.1464E-13
  2.7267E-15 -2.6917E-15  4.2443E-13 -3.1997E-14  3.5402E-15 -6.8364E-15
 -2.1883E-15  1.9023E-15 -3.1997E-14  2.7812E-15 -2.0635E-16  4.7736E-15
 -2.9628E-14 -2.7353E-15  3.5402E-15 -2.0635E-16  2.8822E-13 -1.4103E-14
 -1.3168E-13  1.1464E-13 -6.8364E-15  4.7736E-15 -1.4103E-14  2.8772E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.438721  -28.274416   -0.873606    0.012240   -0.483251  2453669.715651
# Heliocentric elements and errors
Epoch:              2453670.5000  =  2005/10/27
Mean Anomaly:            7.59147 +/-     0.015
Argument of Peri:       22.49892 +/-     0.017
Long of Asc Node:      301.71635 +/-     0.002
Inclination:             2.73761 +/-     0.000
Eccentricity:         0.07202266 +/-    0.0001
Semi-Major Axis:     43.14730252 +/-    0.0042
Time of Perihelion: 2451487.5077 +/-       4.2
Perihelion:          40.03971893 +/-    0.0049
Aphelion:            46.25488612 +/-    0.0054
Period (y)              283.4253 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.68364461 +/-    0.0007
Ecliptic Y          -18.20436724 +/-    0.0004
Ecliptic Z            0.99384157 +/-    0.0000
Ecliptic XDOT         0.00130023 +/-    0.0000
Ecliptic YDOT         0.00249141 +/-    0.0000
Ecliptic ZDOT         0.00011552 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.07129487 +/-    0.0007
Geocenter to KBO     39.58135314 +/-    0.0008
# Hcoef:  7.92

The following table shows the complete astrometric record for 19VP53. 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 (19VP53) followed by the observatory code and reference code for the source of the astrometry.

2005 10  26.214908 22 12 51.37   -09 30 59.0         19VP53    T14  C~8Zqg      
2005 10  26.262181 22 12 51.28   -09 30 59.5         19VP53    T14  C~8Zqg      
2005 10  26.309903 22 12 51.21   -09 30 59.9         19VP53    T14  C~8Zqg      
2015 01  17.237239 23 03 27.47   -03 59 10.4         19VP53    T09  C~8Zqg      
2015 01  17.242744 23 03 27.50   -03 59 10.3         19VP53    T09  C~8Zqg      
2015 01  17.247969 23 03 27.52   -03 59 10.0         19VP53    T09  C~8Zqg      
2015 01  17.253174 23 03 27.54   -03 59 10.0         19VP53    T09  C~8Zqg      
2017 06  24.606976 23 25 22.65   -01 29 49.0         19VP53    T09  C~8Zqg      
2017 11  09.035934 23 17 45.917  -02 16 14.81  23.0r 19VP53    W84  C~8cSQ      
2018 09  17.277164 23 26 22.398  -01 17 00.62  22.9i 19VP53    W84  C~8Zqg      
2018 09  17.278535 23 26 22.399  -01 17 00.67  23.4r 19VP53    W84  C~8Zqg      
2019 10  27.21331  23 29 03.51   -00 57 25.2   24.5r 19VP53    T09  C~85Kl      
2019 10  27.24280  23 29 03.43   -00 57 25.7   23.8r 19VP53    T09  C~85Kl      
2019 10  27.24768  23 29 03.40   -00 57 25.8   24.0r 19VP53    T09  C~85Kl      
2019 11  01.21475  23 28 48.40   -00 59 13.2   24.5g 19VP53    T09  C~85Kl      
2019 11  01.29245  23 28 48.18   -00 59 14.7   24.9g 19VP53    T09  C~85Kl      
2019 11  01.38109  23 28 47.93   -00 59 16.4   24.8g 19VP53    T09  C~85Kl      
2019 11  01.46066  23 28 47.71   -00 59 18.0   24.5g 19VP53    T09  C~85Kl      
2019 11  02.21016  23 28 45.62   -00 59 33.2   24.0i 19VP53    T09  C~85Kl      
2019 11  02.22416  23 28 45.57   -00 59 33.5   23.9i 19VP53    T09  C~85Kl      
2019 11  02.23823  23 28 45.54   -00 59 33.8   24.0i 19VP53    T09  C~85Kl      
2019 11  02.25232  23 28 45.49   -00 59 34.0   23.7i 19VP53    T09  C~85Kl      
2019 11  29.20579  23 28 00.31   -01 05 39.1   24.0r 19VP53    T09  C~85Kl      
2019 11  29.21579  23 28 00.30   -01 05 39.1   23.9r 19VP53    T09  C~85Kl      
2019 11  29.22581  23 28 00.30   -01 05 39.3   24.0r 19VP53    T09  C~85Kl      
2019 11  29.24429  23 28 00.28   -01 05 39.1   24.4r 19VP53    T09  C~85Kl      
2019 12  28.211191 23 28 25.75   -01 04 26.6         19VP53    T09  C~8Zqg      
2019 12  28.272484 23 28 25.88   -01 04 25.9         19VP53    T09  C~8Zqg      

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    -0.04       0.00    -0.03
     2   0.0001      0.00    -0.11       0.00     0.00
     3   0.0003      0.00     0.13       0.00     0.13
     4   9.2266      0.00     0.01       0.00    -0.08
     5   9.2266      0.00     0.09       0.00    -0.12
     6   9.2266      0.00     0.04       0.00     0.04
     7   9.2267      0.00    -0.00       0.00    -0.10
     8  11.6616      0.00    -0.01       0.00    -0.05
     9  12.0378      0.00    -0.04       0.00     0.07
    10  12.8927      0.00     0.03       0.00    -0.01
    11  12.8927      0.00     0.14       0.00    -0.02
    12  14.0014      0.00    -0.14       0.00    -0.08
    13  14.0014      0.00     0.10       0.00     0.08
    14  14.0015      0.00    -0.11       0.00     0.09
    15  14.0151      0.00    -0.20       0.00    -0.19
    16  14.0153      0.00    -0.09       0.00    -0.09
    17  14.0155      0.00     0.04       0.00     0.02
    18  14.0157      0.00     0.19       0.00     0.05
    19  14.0178      0.00     0.04       0.00     0.07
    20  14.0178      0.00    -0.11       0.00     0.05
    21  14.0179      0.00     0.04       0.00     0.03
    22  14.0179      0.00    -0.11       0.00     0.11
    23  14.0917      0.00     0.07       0.00    -0.06
    24  14.0917      0.00     0.01       0.00     0.01
    25  14.0917      0.00     0.09       0.00    -0.13
    26  14.0918      0.00    -0.05       0.00     0.18
    27  14.1711      0.00     0.03       0.00     0.01
    28  14.1713      0.00    -0.01       0.00     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.

19VP53    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.440    43.440    43.440
ecceobj         0.078     0.078     0.078
incobj          2.738     2.738     2.738
qmin           39.223    39.223    39.224
qmax           47.648    47.648    47.649
amean          43.318    43.318    43.318
amin           42.979    42.978    42.979
amax           43.688    43.688    43.688
emean           0.073     0.073     0.073
emin            0.055     0.055     0.055
emax            0.091     0.091     0.091
imean           4.455     4.455     4.455
imin            3.525     3.525     3.525
imax            5.267     5.267     5.267
excite_mean     0.107     0.107     0.107
fracstop        1.000     1.000     1.000
cjmean          3.079     3.079     3.079

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       183.7     183.8     183.8
kozaiamp        180.0     180.0     180.0