Orbit Fit and Astrometric record for 14VR39

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: 14VR39    
# Created Sun Apr 21 01:16:38 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     24 observations of     24
# Arc:  12.24y
# First observation: 2008/07/13
#  Last observation: 2020/10/09
# Chi-squared of fit:    30.90 DOF:     42 RMS:  0.20
# Min/Max residuals:    -0.59    0.53
# Exact a, adot, b, bdot, g, gdot:
  1.810798E-05  5.613194E-02 -1.363471E-05 -3.492171E-02  4.564196E-02 -8.998577E-03
# Covariance matrix:
  8.6362E-13 -1.4479E-13 -3.9133E-13  8.5818E-14  4.4666E-14 -7.9941E-14
 -1.4479E-13  3.6271E-14  1.1543E-13 -2.4954E-14  2.3143E-14  2.5844E-14
 -3.9133E-13  1.1543E-13  7.3288E-13 -1.2500E-13  8.6454E-14  9.3361E-14
  8.5818E-14 -2.4954E-14 -1.2500E-13  2.3689E-14 -1.7805E-14 -2.0121E-14
  4.4666E-14  2.3143E-14  8.6454E-14 -1.7805E-14  1.0664E-13  2.4922E-14
 -7.9941E-14  2.5844E-14  9.3361E-14 -2.0121E-14  2.4922E-14  2.1289E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.447281   12.878447    1.000642   -0.014039   -0.147739  2454660.925352
# Heliocentric elements and errors
Epoch:              2454660.5000  =  2008/07/13
Mean Anomaly:          328.73032 +/-     0.002
Argument of Peri:      241.82264 +/-     0.002
Long of Asc Node:      181.79375 +/-     0.000
Inclination:            32.73912 +/-     0.000
Eccentricity:         0.25729616 +/-    0.0000
Semi-Major Axis:     27.40878684 +/-    0.0181
Time of Perihelion: 2459213.0429 +/-      47.4
Perihelion:          20.35661114 +/-    0.0135
Aphelion:            34.46096253 +/-    0.0228
Period (y)              143.4970 +/-      0.14
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           21.63074364 +/-    0.0003
Ecliptic Y            3.91434702 +/-    0.0001
Ecliptic Z           -2.08017815 +/-    0.0000
Ecliptic XDOT        -0.00146188 +/-    0.0000
Ecliptic YDOT         0.00311961 +/-    0.0000
Ecliptic ZDOT        -0.00203420 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   22.08035649 +/-    0.0002
Geocenter to KBO     21.90975533 +/-    0.0003
# Hcoef: 10.46

The following table shows the complete astrometric record for 14VR39. 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 (14VR39) followed by the observatory code and reference code for the source of the astrometry.

2008 07  13.424598 00 55 51.60   +00 03 59.5         14VR39    309  C~5Puz      
2014 09  22.454394 02 30 48.12   -04 51 41.1         14VR39    568  C~5Puz      
2014 09  22.473728 02 30 48.00   -04 51 42.8         14VR39    568  C~5Puz      
2014 09  22.577767 02 30 47.39   -04 51 51.5         14VR39    568  C~5Puz      
2014 11  12.073542 02 24 14.988  -05 51 15.02  24.5g 14VR39    W84  C~2j4d      
2014 11  12.075747 02 24 14.978  -05 51 15.16  23.9r 14VR39    W84  C~2j4d      
2014 11  19.068814 02 23 17.998  -05 56 11.04  23.7r 14VR39    W84  C~2j4d      
2014 11  26.076187 02 22 24.204  -06 00 01.23  23.6i 14VR39    W84  C~2j4d      
2014 11  26.080145 02 22 24.167  -06 00 01.34  23.4z 14VR39    W84  C~2j4d      
2014 12  01.066927 02 21 48.597  -06 02 02.44  23.2i 14VR39    W84  C~2j4d      
2014 12  10.231210 02 20 50.500  -06 04 12.50  23.1i 14VR39    W84  C~2j4d      
2014 12  23.058779 02 19 48.469  -06 03 50.70  24.0r 14VR39    W84  C~2j4d      
2014 12  23.061140 02 19 48.467  -06 03 50.70  23.6i 14VR39    W84  C~2j4d      
2015 10  13.416547 02 46 05.066  -05 56 12.96  23.7G 14VR39    F51  C~5Puz      
2015 10  15.478000 02 45 49.130  -05 58 52.49  23.2G 14VR39    F51  C~5Puz      
2015 12  06.327856 02 38 43.818  -06 40 50.69  23.5G 14VR39    F51  C~5Puz      
2016 01  12.207735 02 36 07.37   -06 32 39.4         14VR39    568  C~5Puz      
2016 01  12.211600 02 36 07.36   -06 32 39.3         14VR39    568  C~5Puz      
2016 10  09.509640 03 04 20.561  -06 26 47.75  23.2G 14VR39    F51  C~5Puz      
2017 09  21.373814 03 23 59.76   -06 32 38.1         14VR39    W84  C~5Puz      
2019 10  25.492134 03 57 08.828  -08 18 24.33  22.7G 14VR39    F52  C~5Puz      
2019 10  31.486098 03 56 21.922  -08 25 38.11  23.8G 14VR39    F51  C~5Puz      
2019 11  03.516061 03 55 56.927  -08 29 00.93  23.5G 14VR39    F51  C~5Puz      
2020 10  09.554495 04 17 06.555  -08 22 17.59  23.1G 14VR39    F51  C~5Puz      

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     0.13       0.00     0.40
     2   6.1931      0.00    -0.13       0.00     0.10
     3   6.1932      0.00    -0.22       0.00     0.03
     4   6.1934      0.00    -0.15       0.00     0.11
     5   6.3317      0.00    -0.09       0.00    -0.03
     6   6.3317      0.00     0.03       0.00    -0.06
     7   6.3508      0.00    -0.24       0.00    -0.01
     8   6.3700      0.00    -0.12       0.00    -0.19
     9   6.3700      0.00    -0.22       0.00    -0.19
    10   6.3837      0.00    -0.01       0.00     0.07
    11   6.4088      0.00     0.37       0.00    -0.28
    12   6.4439      0.00     0.01       0.00     0.13
    13   6.4439      0.00     0.12       0.00     0.11
    14   7.2498      0.00     0.21       0.00    -0.23
    15   7.2555      0.00     0.23       0.00     0.14
    16   7.3974      0.00    -0.09       0.00    -0.59
    17   7.4984      0.00     0.20       0.00    -0.08
    18   7.4984      0.00     0.12       0.00    -0.13
    19   8.2412      0.00    -0.07       0.00     0.36
    20   9.1908      0.00     0.01       0.00    -0.06
    21  11.2829      0.00    -0.07       0.00     0.18
    22  11.2993      0.00     0.10       0.00    -0.21
    23  11.3076      0.00    -0.11       0.00     0.53
    24  12.2413      0.00     0.09       0.00     0.04

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.

14VR39    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        27.555    27.555    27.555
ecceobj         0.261     0.261     0.261
incobj         32.677    32.677    32.677
qmin           19.314    18.903    18.593
qmax           37.349    37.545    37.071
amean          28.110    27.911    27.687
amin           27.383    27.383    27.340
amax           28.515    28.333    27.928
emean           0.284     0.295     0.298
emin            0.222     0.243     0.248
emax            0.313     0.326     0.328
imean          31.066    30.757    30.823
imin           30.252    29.919    29.952
imax           32.789    32.359    32.359
excite_mean     0.590     0.591     0.593
fracstop        0.039     0.042     0.033
cjmean          2.665     2.667     2.666

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       272.0     270.3     272.5
kozaiamp         28.4      26.9      30.8