Orbit Fit and Astrometric record for 13JV63

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: 13JV63    
# Created Sat Nov 27 02:11:45 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     30 observations of     30
# Arc:   5.06y
# First observation: 2011/06/07
#  Last observation: 2016/06/29
# Chi-squared of fit:    74.71 DOF:     54 RMS:  0.28
# Min/Max residuals:    -0.64    0.85
# Exact a, adot, b, bdot, g, gdot:
  1.537362E-05  2.225600E-02 -1.078539E-06 -1.312694E-03  2.331682E-02  4.532993E-03
# Covariance matrix:
  3.0262E-13 -2.5301E-13 -7.3622E-15  1.1177E-14 -1.0705E-13 -1.9558E-12
 -2.5301E-13  3.5967E-13  1.1340E-14 -1.7620E-14  2.7504E-14  3.1890E-12
 -7.3622E-15  1.1340E-14  1.6190E-13 -5.3708E-14  3.3434E-15  1.0959E-13
  1.1177E-14 -1.7620E-14 -5.3708E-14  2.7013E-14 -4.0807E-15 -1.6973E-13
 -1.0705E-13  2.7504E-14  3.3434E-15 -4.0807E-15  3.8703E-13  4.5308E-13
 -1.9558E-12  3.1890E-12  1.0959E-13 -1.6973E-13  4.5308E-13  3.0579E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -7.672232 -124.096956   -0.348054   -0.127513   -0.946036  2455719.885236
# Heliocentric elements and errors
Epoch:              2455720.5000  =  2011/06/08
Mean Anomaly:           63.88966 +/-     0.030
Argument of Peri:      158.07341 +/-     0.024
Long of Asc Node:      350.63338 +/-     0.003
Inclination:             8.22374 +/-     0.000
Eccentricity:         0.21236107 +/-    0.0003
Semi-Major Axis:     46.26323321 +/-    0.0087
Time of Perihelion: 2435322.8334 +/-      11.2
Perihelion:          36.43872352 +/-    0.0137
Aphelion:            56.08774290 +/-    0.0159
Period (y)              314.6750 +/-      0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.06972592 +/-    0.0006
Ecliptic Y          -36.18251994 +/-    0.0009
Ecliptic Z           -5.72572238 +/-    0.0002
Ecliptic XDOT         0.00187752 +/-    0.0000
Ecliptic YDOT        -0.00187894 +/-    0.0000
Ecliptic ZDOT        -0.00022377 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.83261870 +/-    0.0009
Geocenter to KBO     42.88740014 +/-    0.0011
# Hcoef:  6.39

The following table shows the complete astrometric record for 13JV63. 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 (13JV63) followed by the observatory code and reference code for the source of the astrometry.

2011 06  07.38447  15 26 13.368  -26 40 31.55  22.8G 13JV63    F51  C~2r7P      
2011 06  07.39874  15 26 13.297  -26 40 31.41  23.0G 13JV63    F51  C~2r7P      
2011 06  07.41293  15 26 13.239  -26 40 31.32  22.3G 13JV63    F51  C~2r7P      
2011 06  07.42708  15 26 13.180  -26 40 30.82  22.5G 13JV63    F51  C~2r7P      
2012 05  19.39475  15 33 07.998  -27 08 44.19  22.9G 13JV63    F51  C~2r7P      
2012 05  19.41024  15 33 07.906  -27 08 43.77  23.0G 13JV63    F51  C~2r7P      
2012 05  19.44116  15 33 07.761  -27 08 43.30  22.3G 13JV63    F51  C~2r7P      
2012 05  20.38009  15 33 03.041  -27 08 28.06  22.2G 13JV63    F51  C~2r7P      
2012 05  20.39471  15 33 02.943  -27 08 27.83  22.6G 13JV63    F51  C~2r7P      
2012 05  20.42385  15 33 02.785  -27 08 28.04  22.7G 13JV63    F51  C~2r7P      
2012 06  12.35841  15 31 13.053  -27 01 42.29  22.2G 13JV63    F51  C~2r7P      
2013 04  03.57368  15 42 00.329  -27 37 23.24  22.6G 13JV63    F51  C~2r7P      
2013 04  16.51113  15 41 11.360  -27 36 33.50  22.9G 13JV63    F51  C~2r7P      
2013 05  08.25853  15 39 30.438  -27 33 06.67  22.2r 13JV63    807  C~143e      
2013 05  08.31411  15 39 30.139  -27 33 05.76        13JV63    807  C~143e      
2013 05  08.36487  15 39 29.898  -27 33 05.22        13JV63    807  C~143e      
2013 05  11.44282  15 39 14.587  -27 32 25.63  22.1G 13JV63    F51  C~2r7P      
2013 07  08.01131  15 35 02.314  -27 16 07.04        13JV63    304  C~143e      
2013 07  08.03623  15 35 02.263  -27 16 05.76        13JV63    304  C~143e      
2014 05  01.33258  15 45 29.740  -27 54 59.62        13JV63    304  C~143e      
2014 05  02.34797  15 45 24.865  -27 54 49.26  22.1r 13JV63    304  C~143e      
2014 05  02.39685  15 45 24.628  -27 54 48.62        13JV63    304  C~143e      
2014 06  27.34840  15 41 00.821  -27 40 26.18  22.7G 13JV63    F51  C~2r7P      
2015 03  22.58961  15 53 17.138  -28 16 07.31  22.9G 13JV63    F51  C~2r7P      
2015 04  02.57723  15 52 48.702  -28 16 34.64  23.1G 13JV63    F51  C~2r7P      
2015 05  20.22320  15 49 21.21   -28 10 58.7         13JV63    W84  C~1Tjt      
2015 05  21.26162  15 49 15.94   -28 10 44.4   22.7V 13JV63    W84  C~1Tjt      
2015 05  22.30657  15 49 10.64   -28 10 29.8         13JV63    W84  C~1Tjt      
2015 05  23.21987  15 49 06.05   -28 10 17.2         13JV63    W84  C~1Tjt      
2016 06  29.35571  15 51 35.030  -28 19 09.56  23.6G 13JV63    F51  C~2r7P      

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    -0.05       0.00     0.05
     2   0.0000      0.00    -0.12       0.00    -0.08
     3   0.0001      0.00     0.01       0.00    -0.26
     4   0.0001      0.00     0.11       0.00    -0.03
     5   0.9501      0.00     0.12       0.00    -0.17
     6   0.9501      0.00    -0.07       0.00     0.00
     7   0.9502      0.00     0.14       0.00    -0.02
     8   0.9528      0.00     0.15       0.00     0.11
     9   0.9528      0.00    -0.19       0.00     0.10
    10   0.9529      0.00    -0.32       0.00    -0.58
    11   1.0157      0.00     0.09       0.00    -0.09
    12   1.8239      0.00     0.13       0.00    -0.06
    13   1.8593      0.00     0.08       0.00     0.17
    14   1.9189      0.00    -0.36       0.00     0.15
    15   1.9190      0.00    -0.64       0.00     0.35
    16   1.9192      0.00    -0.43       0.00     0.23
    17   1.9276      0.00     0.27       0.00    -0.14
    18   2.0852      0.00     0.19       0.00    -0.01
    19   2.0853      0.00     0.54       0.00     0.85
    20   2.8992      0.00     0.67       0.00    -0.18
    21   2.9020      0.00     0.30       0.00     0.09
    22   2.9022      0.00     0.30       0.00     0.22
    23   3.0553      0.00     0.12       0.00    -0.19
    24   3.7897      0.00     0.13       0.00    -0.33
    25   3.8198      0.00     0.27       0.00     0.05
    26   3.9503      0.00    -0.01       0.00    -0.00
    27   3.9531      0.00    -0.33       0.00     0.05
    28   3.9560      0.00    -0.63       0.00     0.09
    29   3.9585      0.00    -0.43       0.00    -0.19
    30   5.0622      0.00     0.11       0.00    -0.22

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.

13JV63    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        46.113    46.113    46.113
ecceobj         0.212     0.212     0.212
incobj          8.229     8.229     8.229
qmin           35.453    35.463    35.465
qmax           58.235    58.143    57.966
amean          46.507    46.460    46.469
amin           46.056    45.963    46.031
amax           47.063    47.015    46.986
emean           0.219     0.218     0.218
emin            0.204     0.201     0.201
emax            0.237     0.237     0.235
imean           8.410     8.362     8.435
imin            7.425     7.346     7.435
imax            9.250     9.200     9.237
excite_mean     0.263     0.262     0.263
fracstop        1.000     1.000     1.000
cjmean          3.046     3.046     3.046

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       181.2     180.1     181.9
kozaiamp        180.0     180.0     180.0