Orbit Fit and Astrometric record for 13VS46

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: 13VS46    
# Created Fri Mar 29 01:16:18 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     34 observations of     34
# Arc:   5.08y
# First observation: 2013/10/29
#  Last observation: 2018/11/29
# Chi-squared of fit:     6.40 DOF:     62 RMS:  0.08
# Min/Max residuals:    -0.17    0.21
# Exact a, adot, b, bdot, g, gdot:
  1.749302E-05  2.596112E-02  4.295698E-06  6.960573E-03  2.370267E-02  9.235155E-03
# Covariance matrix:
  3.4264E-13 -2.5060E-13  3.9752E-14 -5.3755E-14 -3.5267E-14 -1.7107E-12
 -2.5060E-13  3.1171E-13 -6.7124E-14  8.4620E-14  1.2139E-13  2.6845E-12
  3.9752E-14 -6.7124E-14  2.3161E-13 -8.8811E-14 -4.1086E-14 -6.3771E-13
 -5.3755E-14  8.4620E-14 -8.8811E-14  5.3111E-14  3.8016E-14  8.0071E-13
 -3.5267E-14  1.2139E-13 -4.1086E-14  3.8016E-14  2.1289E-13  1.1857E-12
 -1.7107E-12  2.6845E-12 -6.3771E-13  8.0071E-13  1.1857E-12  2.5397E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -14.061927   27.516898   -0.138721   -0.238646   -0.953282  2456594.649838
# Heliocentric elements and errors
Epoch:              2456594.5000  =  2013/10/29
Mean Anomaly:            9.84173 +/-     0.007
Argument of Peri:      266.08192 +/-     0.014
Long of Asc Node:       69.40293 +/-     0.001
Inclination:            20.19055 +/-     0.000
Eccentricity:         0.63057762 +/-    0.0002
Semi-Major Axis:    100.40278889 +/-    0.0484
Time of Perihelion: 2446548.6604 +/-      10.3
Perihelion:          37.09103740 +/-    0.0283
Aphelion:           163.71454039 +/-    0.0819
Period (y)             1006.0669 +/-      0.73
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           37.10196189 +/-    0.0007
Ecliptic Y           19.48792996 +/-    0.0004
Ecliptic Z          -10.25063000 +/-    0.0002
Ecliptic XDOT        -0.00030065 +/-    0.0000
Ecliptic YDOT         0.00322621 +/-    0.0000
Ecliptic ZDOT         0.00052087 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.14380461 +/-    0.0006
Geocenter to KBO     42.18912455 +/-    0.0008
# Hcoef:  6.64

The following table shows the complete astrometric record for 13VS46. 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 (13VS46) followed by the observatory code and reference code for the source of the astrometry.

2013 10  29.14906  02 02 12.779  -02 33 33.01  23.6g 13VS46    W84  C~4yRU      
2013 11  13.18324  02 01 07.084  -02 37 07.75  22.2z 13VS46    W84  C~4yRU      
2013 11  13.18324  02 01 07.08   -02 37 07.8   22.2z 13VS46    W84  C~3clY      
2014 10  23.29471  02 07 37.540  -01 38 13.99  23.3g 13VS46    W84  C~4yRU      
2014 10  23.29471  02 07 37.54   -01 38 14.0   23.4g 13VS46    W84  C~3clY      
2014 11  28.18350  02 05 06.430  -01 45 37.74  23.6g 13VS46    W84  C~4yRU      
2014 12  26.06893  02 03 49.585  -01 43 21.18  23.4i 13VS46    W84  C~4yRU      
2015 01  14.06383  02 03 31.806  -01 37 28.23  22.9r 13VS46    W84  C~4yRU      
2015 01  14.06383  02 03 31.81   -01 37 28.2   23.0r 13VS46    W84  C~3clY      
2015 01  19.05630  02 03 32.413  -01 35 23.30  22.9z 13VS46    W84  C~4yRU      
2015 12  15.15674  02 09 04.014  -00 53 17.04  23.5r 13VS46    W84  C~4yRU      
2015 12  15.15674  02 09 04.01   -00 53 17.1   23.4r 13VS46    W84  C~3clY      
2015 12  17.12662  02 08 58.875  -00 53 05.14  22.7i 13VS46    W84  C~4yRU      
2016 09  10.30493  02 19 50.950  +00 21 46.09  22.2i 13VS46    W84  C~4yRU      
2016 09  10.30493  02 19 50.95   +00 21 45.9   22.7i 13VS46    W84  C~3clY      
2016 09  10.30630  02 19 50.945  +00 21 45.90  23.2r 13VS46    W84  C~4yRU      
2016 09  10.30630  02 19 50.94   +00 21 45.9   23.4r 13VS46    W84  C~3clY      
2016 09  10.30766  02 19 50.943  +00 21 45.86  24.0g 13VS46    W84  C~4yRU      
2016 10  27.17613  02 16 55.010  +00 04 13.05  23.3r 13VS46    W84  C~4yRU      
2016 10  27.17613  02 16 55.01   +00 04 13.1   23.3r 13VS46    W84  C~3clY      
2016 10  27.17750  02 16 55.005  +00 04 12.93  23.1i 13VS46    W84  C~4yRU      
2016 10  27.17750  02 16 55.00   +00 04 13.0   23.0i 13VS46    W84  C~3clY      
2016 10  27.17887  02 16 54.991  +00 04 12.97  23.4g 13VS46    W84  C~4yRU      
2016 10  27.17887  02 16 54.99   +00 04 13.0   23.7g 13VS46    W84  C~3clY      
2016 12  07.08667  02 14 10.319  -00 02 34.75  22.5i 13VS46    W84  C~4yRU      
2016 12  07.08667  02 14 10.32   -00 02 34.7   22.6i 13VS46    W84  C~3clY      
2016 12  23.05251  02 13 27.381  -00 01 19.79  23.1r 13VS46    W84  C~4yRU      
2016 12  23.05251  02 13 27.38   -00 01 19.8   23.3r 13VS46    W84  C~3clY      
2017 10  21.22556  02 22 01.910  +00 56 39.87  23.9g 13VS46    W84  C~4yRU      
2017 10  30.21948  02 21 22.708  +00 53 49.82  22.3z 13VS46    W84  C~4yRU      
2017 12  07.03810  02 18 50.792  +00 47 35.81  22.4i 13VS46    W84  C~4yRU      
2017 12  24.06658  02 18 04.122  +00 48 40.20  23.0z 13VS46    W84  C~4yRU      
2018 01  05.06676  02 17 44.011  +00 51 01.26  24.0g 13VS46    W84  C~4yRU      
2018 11  29.17757  02 23 53.950  +01 37 19.83  23.7g 13VS46    W84  C~4yRU      

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    -0.06       0.00     0.05
     2   0.0412      0.00    -0.03       0.00    -0.02
     3   0.0412      0.00     0.03       0.00     0.03
     4   0.9833      0.00     0.04       0.00     0.03
     5   0.9833      0.00     0.04       0.00     0.02
     6   1.0815      0.00    -0.09       0.00    -0.01
     7   1.1579      0.00     0.21       0.00    -0.08
     8   1.2099      0.00    -0.10       0.00    -0.03
     9   1.2099      0.00    -0.04       0.00    -0.00
    10   1.2236      0.00    -0.02       0.00     0.12
    11   2.1273      0.00    -0.00       0.00    -0.14
    12   2.1273      0.00     0.06       0.00    -0.08
    13   2.1327      0.00    -0.10       0.00     0.05
    14   2.8670      0.00     0.02       0.00    -0.09
    15   2.8670      0.00     0.02       0.00     0.10
    16   2.8670      0.00    -0.08       0.00    -0.05
    17   2.8670      0.00    -0.00       0.00    -0.05
    18   2.8670      0.00     0.02       0.00    -0.06
    19   2.9953      0.00     0.06       0.00     0.12
    20   2.9953      0.00     0.06       0.00     0.07
    21   2.9953      0.00     0.00       0.00     0.04
    22   2.9953      0.00     0.08       0.00    -0.03
    23   2.9953      0.00    -0.05       0.00     0.07
    24   2.9953      0.00    -0.04       0.00     0.04
    25   3.1073      0.00     0.12       0.00     0.01
    26   3.1073      0.00     0.11       0.00    -0.04
    27   3.1510      0.00     0.05       0.00    -0.06
    28   3.1510      0.00     0.06       0.00    -0.05
    29   3.9783      0.00     0.00       0.00     0.16
    30   4.0029      0.00    -0.06       0.00     0.02
    31   4.1065      0.00    -0.17       0.00     0.18
    32   4.1531      0.00     0.00       0.00    -0.13
    33   4.1859      0.00    -0.11       0.00    -0.03
    34   5.0843      0.00     0.12       0.00    -0.05

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.

13VS46    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       102.385   102.386   102.384
ecceobj         0.638     0.638     0.638
incobj         20.193    20.193    20.193
qmin           36.234    36.144    36.112
qmax          168.738   168.779   168.715
amean         100.250   100.266   100.233
amin           98.345    98.424    98.384
amax          102.884   103.105   102.921
emean           0.626     0.626     0.626
emin            0.614     0.612     0.611
emax            0.640     0.640     0.640
imean          19.691    19.712    19.701
imin           18.857    18.906    18.945
imax           20.691    20.832    20.738
excite_mean     0.711     0.711     0.711
fracstop        1.000     1.000     1.000
cjmean          2.980     2.980     2.980

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       173.2     172.4     173.0
kozaiamp        180.0     180.0     180.0