Orbit Fit and Astrometric record for 13SV112

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: 13SV112   
# Created Wed Dec  8 02:12:05 2021
# Orbit generated from Bernstein formalism
# Fitting     19 observations of     19
# Arc:   4.96y
# First observation: 2013/09/30
#  Last observation: 2018/09/14
Preliminary a, adot, b, bdot, g, gdot:
   0.000287   0.025357   0.000041  -0.016082   0.028137   0.000000
# Chi-squared of fit:     6.62 DOF:     32 RMS:  0.10
# Min/Max residuals:    -0.26    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.495202E-05  2.552032E-02 -9.717723E-06 -1.614427E-02  2.745571E-02  1.551034E-03
# Covariance matrix:
  2.7213E-13  9.9226E-15  8.6873E-15 -4.7438E-14  3.6466E-13  6.4359E-13
  9.9226E-15  2.6367E-13  2.5817E-14 -1.6703E-13  2.5160E-13  2.2920E-12
  8.6873E-15  2.5817E-14  1.5202E-13 -5.3792E-14  3.7249E-14  2.4818E-13
 -4.7438E-14 -1.6703E-13 -5.3792E-14  1.3376E-13 -2.1665E-13 -1.5890E-12
  3.6466E-13  2.5160E-13  3.7249E-14 -2.1665E-13  1.1406E-12  2.9524E-12
  6.4359E-13  2.2920E-12  2.4818E-13 -1.5890E-12  2.9524E-12  2.1790E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.804133   -1.982296   -0.152818    0.031263   -0.989423  2456565.631898
# Heliocentric elements and errors
Epoch:              2456560.5000  =  2013/09/25
Mean Anomaly:           16.54131 +/-     0.046
Argument of Peri:      153.86312 +/-     0.065
Long of Asc Node:      181.02701 +/-     0.000
Inclination:            32.38233 +/-     0.000
Eccentricity:         0.15720212 +/-    0.0001
Semi-Major Axis:     43.91619929 +/-    0.0073
Time of Perihelion: 2451676.1919 +/-      13.4
Perihelion:          37.01247971 +/-    0.0079
Aphelion:            50.81991886 +/-    0.0098
Period (y)              291.0351 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           37.37667662 +/-    0.0014
Ecliptic Y           -1.13777392 +/-    0.0001
Ecliptic Z            1.14630668 +/-    0.0000
Ecliptic XDOT         0.00028701 +/-    0.0000
Ecliptic YDOT         0.00253490 +/-    0.0000
Ecliptic ZDOT        -0.00160408 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.41155575 +/-    0.0014
Geocenter to KBO     36.42229191 +/-    0.0014
# Hcoef:  7.70

The following table shows the complete astrometric record for 13SV112. 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 (13SV112) followed by the observatory code and reference code for the source of the astrometry.

2013 09  30.13112  23 49 51.336  +00 52 01.40  23.4r 13SV112   W84  C~52RV      
2013 09  30.13557  23 49 51.322  +00 52 01.16  23.1i 13SV112   W84  C~52RV      
2013 10  12.09918  23 48 56.576  +00 43 55.98  22.7i 13SV112   W84  C~52RV      
2013 10  13.08002  23 48 52.297  +00 43 17.03  23.4i 13SV112   W84  C~52RV      
2013 10  26.02672  23 48 00.225  +00 35 10.34  24.1g 13SV112   W84  C~52RV      
2013 10  28.04236  23 47 52.954  +00 33 59.10  23.2r 13SV112   W84  C~52RV      
2013 10  28.04375  23 47 52.943  +00 33 59.06  23.1i 13SV112   W84  C~52RV      
2013 11  08.12633  23 47 18.081  +00 27 59.34  23.7r 13SV112   W84  C~52RV      
2013 11  08.12773  23 47 18.062  +00 27 59.22  22.9z 13SV112   W84  C~52RV      
2013 11  22.05648  23 46 48.433  +00 21 54.38  24.7g 13SV112   W84  C~52RV      
2016 09  11.19965  00 11 42.716  +00 16 29.78  23.0i 13SV112   W84  C~52RV      
2016 12  04.09291  00 06 37.177  -00 29 04.56  23.8i 13SV112   W84  C~52RV      
2017 09  27.24786  00 17 11.989  -00 10 16.51  23.3i 13SV112   W84  C~52RV      
2017 09  27.24923  00 17 11.970  -00 10 16.59  23.2r 13SV112   W84  C~52RV      
2017 10  27.16717  00 14 56.164  -00 29 21.16  22.7z 13SV112   W84  C~52RV      
2017 11  09.05875  00 14 09.434  -00 36 01.90  23.4r 13SV112   W84  C~52RV      
2018 09  09.21996  00 25 19.875  -00 13 49.13  24.7g 13SV112   W84  C~52RV      
2018 09  14.32064  00 24 56.898  -00 17 13.90  22.7i 13SV112   W84  C~52RV      
2018 09  14.32202  00 24 56.893  -00 17 13.91  22.7r 13SV112   W84  C~52RV      

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     0.09
     2   0.0000     -0.29     0.03      -0.14    -0.01
     3   0.0328   -946.62     0.06    -118.83     0.05
     4   0.0355  -1021.00    -0.10    -129.05    -0.12
     5   0.0709  -1931.20     0.30    -265.03     0.18
     6   0.0764  -2059.61     0.05    -287.03    -0.03
     7   0.0764  -2059.78    -0.03    -287.00     0.01
     8   0.1068  -2682.70    -0.03    -409.10    -0.03
     9   0.1068  -2683.01    -0.26    -409.10    -0.01
    10   0.1449  -3235.99     0.04    -567.12    -0.14
    11   2.9489  17259.09     0.06   -9796.71     0.06
    12   3.1785  11935.14    -0.07  -10480.74    -0.04
    13   3.9921  21204.44     0.01  -13266.95     0.03
    14   3.9921  21204.14    -0.17  -13266.91     0.08
    15   4.0740  18854.03     0.17  -13503.28     0.01
    16   4.1093  18043.71     0.01  -13590.94    -0.10
    17   4.9421  27962.70    -0.10  -16433.26    -0.18
    18   4.9560  27556.91     0.03  -16483.09     0.07
    19   4.9560  27556.83     0.07  -16483.06     0.10

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.

13SV112    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        44.138    44.160    44.115
ecceobj         0.162     0.162     0.162
incobj         32.302    32.302    32.302
qmin           35.830    35.781    35.759
qmax           52.423    52.470    52.460
amean          43.957    43.968    43.934
amin           43.590    43.605    43.560
amax           44.372    44.368    44.346
emean           0.164     0.164     0.164
emin            0.146     0.146     0.145
emax            0.183     0.183     0.183
imean          31.978    31.975    31.969
imin           31.555    31.549    31.562
imax           32.335    32.325    32.322
excite_mean     0.554     0.554     0.554
fracstop        1.000     1.000     1.000
cjmean          2.707     2.707     2.707

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       181.9     181.6     182.6
kozaiamp        180.0     179.9     179.9