Orbit Fit and Astrometric record for 16SV58

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: 16SV58    
# Created Fri Dec  3 02:13:55 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     54 observations of     54
# Arc:   5.12y
# First observation: 2013/10/03
#  Last observation: 2018/11/16
# Chi-squared of fit:    29.68 DOF:    102 RMS:  0.13
# Min/Max residuals:    -0.53    0.34
# Exact a, adot, b, bdot, g, gdot:
  1.880112E-05  3.331133E-02 -1.892125E-06 -1.666414E-03  2.901265E-02 -5.260004E-03
# Covariance matrix:
  5.2459E-13 -3.6623E-13 -1.7183E-14  1.6323E-14 -6.1103E-14 -1.8875E-12
 -3.6623E-13  3.4905E-13  1.4617E-14 -1.6730E-14  1.3518E-13  2.0525E-12
 -1.7183E-14  1.4617E-14  2.2304E-13 -6.8717E-14 -2.0859E-15  9.2932E-14
  1.6323E-14 -1.6730E-14 -6.8717E-14  2.4477E-14 -4.8231E-15 -1.0570E-13
 -6.1103E-14  1.3518E-13 -2.0859E-15 -4.8231E-15  1.9170E-13  8.3999E-13
 -1.8875E-12  2.0525E-12  9.2932E-14 -1.0570E-13  8.3999E-13  1.2945E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -13.636336   30.530926    0.352437   -0.220678   -0.910136  2456568.796258
# Heliocentric elements and errors
Epoch:              2456568.5000  =  2013/10/03
Mean Anomaly:          332.25595 +/-     0.011
Argument of Peri:      305.44599 +/-     0.022
Long of Asc Node:      132.66398 +/-     0.001
Inclination:            13.59947 +/-     0.000
Eccentricity:         0.27105959 +/-    0.0001
Semi-Major Axis:     45.13769883 +/-    0.0038
Time of Perihelion: 2465104.9020 +/-      13.5
Perihelion:          32.90269247 +/-    0.0050
Aphelion:            57.37270519 +/-    0.0064
Period (y)              303.2615 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.83699971 +/-    0.0004
Ecliptic Y           17.19131985 +/-    0.0003
Ecliptic Z           -8.12615729 +/-    0.0001
Ecliptic XDOT        -0.00205052 +/-    0.0000
Ecliptic YDOT         0.00244243 +/-    0.0000
Ecliptic ZDOT        -0.00003566 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.38120912 +/-    0.0004
Geocenter to KBO     34.46786082 +/-    0.0005
# Hcoef:  7.93

The following table shows the complete astrometric record for 16SV58. 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 (16SV58) followed by the observatory code and reference code for the source of the astrometry.

2013 10  03.29548  02 12 36.016  -01 08 30.74  23.7g 16SV58    W84  C~4ybu      
2013 11  13.17529  02 09 05.244  -01 28 10.89  21.9z 16SV58    W84  C~4ybu      
2014 08  19.38618  02 22 09.269  -00 09 08.69  23.7i 16SV58    W84  C~4ybu      
2014 10  01.35954  02 20 06.694  -00 33 12.49  23.6i 16SV58    W84  C~4ybu      
2014 10  23.29889  02 18 17.288  -00 45 22.33  22.4r 16SV58    W84  C~4ybu      
2014 10  23.29889  02 18 17.29   -00 45 22.3   22.6r 16SV58    W84  C~3cyl      
2014 10  23.30162  02 18 17.271  -00 45 22.52  22.5i 16SV58    W84  C~4ybu      
2014 12  16.13208  02 14 03.922  -00 59 09.25  24.2g 16SV58    W84  C~4ybu      
2014 12  16.13481  02 14 03.907  -00 59 09.26  23.1i 16SV58    W84  C~4ybu      
2014 12  16.13481  02 14 03.91   -00 59 09.2   23.4i 16SV58    W84  C~3cyl      
2015 01  16.06633  02 13 13.208  -00 52 00.93  24.0r 16SV58    W84  C~4ybu      
2015 12  15.158970 02 21 27.53   -00 25 15.1   23.1i 16SV58    W84  C~352t      
2015 12  15.15949  02 21 27.498  -00 25 15.31  22.7i 16SV58    W84  C~4ybu      
2015 12  17.133044 02 21 20.89   -00 25 11.4   23.4r 16SV58    W84  C~352t      
2015 12  17.13357  02 21 20.889  -00 25 11.70  23.2r 16SV58    W84  C~4ybu      
2016 09  23.28457  02 35 31.313  +00 40 14.10  23.2i 16SV58    W84  C~4ybu      
2016 09  23.28457  02 35 31.31   +00 40 14.1   23.3i 16SV58    W84  C~3cyl      
2016 09  24.27213  02 35 27.501  +00 39 39.67  23.7r 16SV58    W84  C~4ybu      
2016 09  24.27213  02 35 27.50   +00 39 39.7   23.6r 16SV58    W84  C~3cyl      
2016 09  28.43827  02 35 10.64   +00 37 13.8   24.1g 16SV58    568  C~2eAJ      
2016 09  28.51053  02 35 10.33   +00 37 11.3   24.0g 16SV58    568  C~2eAJ      
2016 09  28.55797  02 35 10.13   +00 37 09.6   23.9g 16SV58    568  C~2eAJ      
2016 09  29.44983  02 35 06.37   +00 36 38.5   24.0g 16SV58    568  C~2eAJ      
2016 09  29.56949  02 35 05.84   +00 36 34.3   24.0g 16SV58    568  C~2eAJ      
2016 10  27.21819  02 32 48.673  +00 21 33.73  23.3r 16SV58    W84  C~4ybu      
2016 10  27.21819  02 32 48.67   +00 21 33.7   23.4r 16SV58    W84  C~3cyl      
2016 10  27.21957  02 32 48.677  +00 21 33.83  24.1g 16SV58    W84  C~4ybu      
2016 11  04.167847 02 32 05.40   +00 17 59.0   23.1i 16SV58    W84  C~352t      
2016 11  04.16838  02 32 05.403  +00 17 59.00  23.0i 16SV58    W84  C~4ybu      
2016 11  04.16838  02 32 05.40   +00 17 59.0   23.1i 16SV58    W84  C~3cyl      
2016 11  04.18347  02 32 05.330  +00 17 58.57  23.3r 16SV58    W84  C~4ybu      
2016 11  04.18347  02 32 05.33   +00 17 58.6   23.3r 16SV58    W84  C~3cyl      
2016 11  04.18483  02 32 05.323  +00 17 58.78  23.2i 16SV58    W84  C~4ybu      
2016 11  04.18483  02 32 05.32   +00 17 58.8   23.5i 16SV58    W84  C~3cyl      
2016 11  04.19864  02 32 05.241  +00 17 58.44  23.9g 16SV58    W84  C~4ybu      
2016 11  04.19864  02 32 05.24   +00 17 58.4   24.1g 16SV58    W84  C~3cyl      
2016 11  04.20001  02 32 05.232  +00 17 58.33  23.7r 16SV58    W84  C~4ybu      
2016 11  04.20001  02 32 05.23   +00 17 58.4   23.6r 16SV58    W84  C~3cyl      
2016 11  04.20137  02 32 05.230  +00 17 58.29  23.2i 16SV58    W84  C~4ybu      
2016 11  04.20137  02 32 05.23   +00 17 58.3   23.4i 16SV58    W84  C~3cyl      
2016 11  10.16381  02 31 32.889  +00 15 36.88  23.0z 16SV58    W84  C~4ybu      
2016 11  25.12200  02 30 15.308  +00 11 10.99  23.5z 16SV58    W84  C~4ybu      
2017 09  14.34340  02 43 34.087  +01 20 20.88  22.5z 16SV58    W84  C~4ybu      
2017 10  29.290498 02 40 12.90   +00 55 44.2   23.1r 16SV58    W84  C~352t      
2017 10  29.29102  02 40 12.898  +00 55 44.17  23.1r 16SV58    W84  C~4ybu      
2017 10  29.291875 02 40 12.88   +00 55 44.1   22.7i 16SV58    W84  C~352t      
2017 10  29.29240  02 40 12.887  +00 55 44.05  22.5i 16SV58    W84  C~4ybu      
2017 10  29.29380  02 40 12.880  +00 55 44.02  24.6g 16SV58    W84  C~4ybu      
2017 11  01.18389  02 39 57.086  +00 54 24.89  22.6z 16SV58    W84  C~4ybu      
2017 11  27.204861 02 37 38.23   +00 45 40.9   22.8i 16SV58    W84  C~352t      
2017 11  27.20538  02 37 38.233  +00 45 40.87  22.6i 16SV58    W84  C~4ybu      
2017 12  08.045694 02 36 47.90   +00 44 05.4   23.3r 16SV58    W84  C~352t      
2017 12  08.04622  02 36 47.907  +00 44 05.17  23.3r 16SV58    W84  C~4ybu      
2018 11  16.14956  02 46 14.668  +01 23 59.14  22.4i 16SV58    W84  C~4ybu      

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    -0.19       0.00     0.15
     2   0.1119      0.00    -0.34       0.00     0.34
     3   0.8764      0.00     0.03       0.00    -0.00
     4   0.9940      0.00     0.03       0.00    -0.04
     5   1.0541      0.00     0.29       0.00     0.00
     6   1.0541      0.00     0.26       0.00    -0.03
     7   1.0541      0.00     0.23       0.00    -0.13
     8   1.2015      0.00     0.11       0.00     0.03
     9   1.2015      0.00     0.06       0.00     0.07
    10   1.2015      0.00     0.02       0.00     0.01
    11   1.2862      0.00     0.05       0.00    -0.13
    12   2.1981      0.00    -0.08       0.00     0.07
    13   2.1981      0.00    -0.53       0.00    -0.14
    14   2.2035      0.00     0.02       0.00     0.24
    15   2.2035      0.00     0.04       0.00    -0.06
    16   2.9733      0.00     0.14       0.00    -0.06
    17   2.9733      0.00     0.18       0.00    -0.06
    18   2.9760      0.00     0.07       0.00     0.04
    19   2.9760      0.00     0.08       0.00     0.01
    20   2.9874      0.00    -0.18       0.00    -0.01
    21   2.9876      0.00    -0.17       0.00     0.02
    22   2.9877      0.00    -0.11       0.00    -0.02
    23   2.9902      0.00    -0.07       0.00     0.01
    24   2.9905      0.00    -0.18       0.00    -0.02
    25   3.0662      0.00    -0.16       0.00    -0.16
    26   3.0662      0.00    -0.12       0.00    -0.13
    27   3.0662      0.00     0.05       0.00     0.01
    28   3.0879      0.00    -0.14       0.00    -0.15
    29   3.0879      0.00    -0.09       0.00    -0.13
    30   3.0879      0.00    -0.05       0.00    -0.13
    31   3.0880      0.00     0.11       0.00    -0.18
    32   3.0880      0.00     0.11       0.00    -0.15
    33   3.0880      0.00     0.08       0.00     0.08
    34   3.0880      0.00     0.12       0.00     0.06
    35   3.0880      0.00     0.02       0.00     0.03
    36   3.0880      0.00     0.04       0.00     0.07
    37   3.0880      0.00    -0.01       0.00     0.06
    38   3.0880      0.00     0.02       0.00    -0.01
    39   3.0880      0.00     0.10       0.00    -0.00
    40   3.0880      0.00     0.10       0.00    -0.01
    41   3.1044      0.00     0.24       0.00    -0.20
    42   3.1453      0.00    -0.08       0.00     0.03
    43   3.9481      0.00     0.00       0.00     0.08
    44   4.0712      0.00     0.05       0.00     0.02
    45   4.0712      0.00     0.07       0.00     0.01
    46   4.0712      0.00    -0.13       0.00    -0.04
    47   4.0712      0.00     0.02       0.00    -0.07
    48   4.0712      0.00     0.03       0.00    -0.07
    49   4.0791      0.00     0.04       0.00     0.05
    50   4.1503      0.00     0.11       0.00     0.11
    51   4.1503      0.00     0.19       0.00     0.08
    52   4.1800      0.00    -0.08       0.00     0.29
    53   4.1800      0.00     0.06       0.00     0.06
    54   5.1194      0.00    -0.12       0.00     0.25

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.

16SV58    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        45.377    45.377    45.378
ecceobj         0.272     0.272     0.272
incobj         13.590    13.590    13.590
qmin           30.980    31.773    31.041
qmax           62.422    63.036    62.999
amean          44.560    45.925    45.485
amin           42.221    43.611    43.565
amax           47.309    47.681    47.337
emean           0.251     0.279     0.284
emin            0.176     0.218     0.228
emax            0.324     0.322     0.335
imean          11.674    11.931    11.442
imin            9.683     8.887     6.352
imax           14.099    14.527    14.144
excite_mean     0.324     0.348     0.347
fracstop        1.000     1.000     1.000
cjmean          2.983     2.976     2.971

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       178.3     177.9     185.4
kozaiamp        179.9     180.0     179.9