Orbit Fit and Astrometric record for 15TG367

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: 15TG367   
# Created Sat Nov 27 02:13:40 2021
# Orbit generated from Bernstein formalism
# Fitting     10 observations of     10
# Arc:   2.11y
# First observation: 2015/10/13
#  Last observation: 2017/11/23
Preliminary a, adot, b, bdot, g, gdot:
   0.000043   0.012911   0.000000  -0.000619   0.017370   0.000000
# Chi-squared of fit:     5.60 DOF:     14 RMS:  0.13
# Min/Max residuals:    -0.34    0.17
# Exact a, adot, b, bdot, g, gdot:
  1.151038E-05  1.303203E-02 -1.019172E-06 -6.276896E-04  1.743322E-02  3.294922E-03
# Covariance matrix:
  3.9921E-13 -2.5218E-12 -5.6032E-14  2.6406E-13 -4.0174E-13 -1.3243E-10
 -2.5218E-12  5.0905E-11  1.2558E-12 -5.6671E-12  1.0861E-11  2.8483E-09
 -5.6032E-14  1.2558E-12  3.0937E-13 -3.1650E-13  2.8591E-13  7.0506E-11
  2.6406E-13 -5.6671E-12 -3.1650E-13  8.7426E-13 -1.2013E-12 -3.1868E-10
 -4.0174E-13  1.0861E-11  2.8591E-13 -1.2013E-12  3.1301E-12  6.0605E-10
 -1.3243E-10  2.8483E-09  7.0506E-11 -3.1868E-10  6.0605E-10  1.6016E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
    9.195657   13.846597   -0.096365    0.159475   -0.984144  2457308.772189
# Heliocentric elements and errors
Epoch:              2457300.5000  =  2015/10/05
Mean Anomaly:          103.11030 +/-     4.799
Argument of Peri:      336.20366 +/-     3.519
Long of Asc Node:      267.07682 +/-     0.020
Inclination:             9.43888 +/-     0.001
Eccentricity:         0.27406908 +/-    0.0189
Semi-Major Axis:     51.86495252 +/-    0.6146
Time of Perihelion: 2418224.6022 +/-    1680.8
Perihelion:          37.65037290 +/-    1.0773
Aphelion:            66.07953215 +/-    1.2548
Period (y)              373.5246 +/-      6.64
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           55.92020178 +/-    0.0056
Ecliptic Y           13.88351200 +/-    0.0014
Ecliptic Z            9.16671857 +/-    0.0009
Ecliptic XDOT         0.00001983 +/-    0.0001
Ecliptic YDOT         0.00210664 +/-    0.0000
Ecliptic ZDOT        -0.00001457 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   58.34251967 +/-    0.0054
Geocenter to KBO     57.36174307 +/-    0.0058
# Hcoef:  7.22

The following table shows the complete astrometric record for 15TG367. 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 (15TG367) followed by the observatory code and reference code for the source of the astrometry.

2015 10  13.27140  00 36 19.311  +13 55 17.62  24.9r 15TG367   568  C~2ZsR      
2015 10  13.38102  00 36 18.928  +13 55 15.09  24.8r 15TG367   568  C~2ZsR      
2015 10  13.50357  00 36 18.513  +13 55 12.23  25.0r 15TG367   568  C~2ZsR      
2015 12  09.08390  00 33 59.874  +13 34 37.10        15TG367   304  C~2ZsR      
2015 12  09.14768  00 33 59.806  +13 34 35.81        15TG367   304  C~2ZsR      
2016 09  25.20298  00 40 10.481  +14 17 08.21        15TG367   304  C~2ZsR      
2016 09  25.25188  00 40 10.311  +14 17 07.12        15TG367   304  C~2ZsR      
2016 09  27.24320  00 40 03.533  +14 16 27.20        15TG367   304  C~2ZsR      
2017 11  21.11009  00 40 08.590  +14 11 21.54  24.6r 15TG367   304  C~2ZsR      
2017 11  23.09704  00 40 04.458  +14 10 39.86  24.7r 15TG367   304  C~2ZsR      

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     0.09
     2   0.0003     -6.12    -0.03      -0.10     0.11
     3   0.0006    -12.80     0.03      -0.32     0.04
     4   0.1555  -2357.97     0.03    -326.85     0.01
     5   0.1557  -2359.40    -0.06    -327.64    -0.21
     6   0.9526   3607.45     0.15    -128.45     0.17
     7   0.9527   3604.75     0.07    -128.48     0.06
     8   0.9582   3498.43    -0.29    -126.33    -0.34
     9   2.1077   3445.49     0.00    -436.26    -0.05
    10   2.1131   3373.82     0.03    -450.88     0.11

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.

15TG367    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        52.389    54.572    50.922
ecceobj         0.269     0.327     0.219
incobj          9.437     9.435     9.439
qmin           37.090    35.379    38.599
qmax           67.883    74.230    63.272
amean          52.118    54.275    50.656
amin           51.594    53.640    50.165
amax           52.747    55.160    51.199
emean           0.273     0.332     0.223
emin            0.262     0.319     0.211
emax            0.287     0.347     0.236
imean          10.910    10.684    11.034
imin           10.321     9.856    10.590
imax           11.409    11.468    11.411
excite_mean     0.332     0.381     0.294
fracstop        1.000     1.000     1.000
cjmean          3.062     3.043     3.076

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       171.2     170.8     176.7
kozaiamp        180.0     180.0     180.0