Orbit Fit and Astrometric record for 15TR362

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: 15TR362   
# Created Fri Mar 29 01:18:19 2024
# Orbit generated from Bernstein formalism
# Fitting     28 observations of     28
# Arc:   4.85y
# First observation: 2013/11/05
#  Last observation: 2018/09/11
Preliminary a, adot, b, bdot, g, gdot:
  -0.000322   0.029984  -0.000015   0.001522   0.026733   0.000000
# Chi-squared of fit:     8.25 DOF:     50 RMS:  0.10
# Min/Max residuals:    -0.30    0.19
# Exact a, adot, b, bdot, g, gdot:
  1.646824E-05  2.937227E-02  1.620701E-06  1.502547E-03  2.708438E-02 -2.724421E-03
# Covariance matrix:
  3.4090E-13 -2.3678E-13  5.5191E-15 -7.3413E-15 -3.8322E-14 -1.0935E-12
 -2.3678E-13  2.7383E-13 -7.9334E-15  9.4796E-15 -9.1303E-14  1.3753E-12
  5.5191E-15 -7.9334E-15  2.1724E-13 -7.4047E-14  1.8922E-15 -4.7088E-14
 -7.3413E-15  9.4796E-15 -7.4047E-14  3.3280E-14  3.2332E-15  6.5211E-14
 -3.8322E-14 -9.1303E-14  1.8922E-15  3.2332E-15  7.7127E-13  6.7840E-13
 -1.0935E-12  1.3753E-12 -4.7088E-14  6.5211E-14  6.7840E-13  9.8014E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.484213   14.104234   -0.470392   -0.098306   -0.866045  2456601.546028
# Heliocentric elements and errors
Epoch:              2456600.5000  =  2013/11/04
Mean Anomaly:          334.38146 +/-     0.030
Argument of Peri:      330.57142 +/-     0.043
Long of Asc Node:       79.35988 +/-     0.003
Inclination:             7.00971 +/-     0.000
Eccentricity:         0.16070558 +/-    0.0001
Semi-Major Axis:     43.88237354 +/-    0.0078
Time of Perihelion: 2464156.3859 +/-       8.6
Perihelion:          36.83023138 +/-    0.0085
Aphelion:            50.93451569 +/-    0.0106
Period (y)              290.6989 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.30946514 +/-    0.0012
Ecliptic Y            9.61135207 +/-    0.0003
Ecliptic Z           -4.16952172 +/-    0.0001
Ecliptic XDOT        -0.00097846 +/-    0.0000
Ecliptic YDOT         0.00281544 +/-    0.0000
Ecliptic ZDOT         0.00018216 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.79074303 +/-    0.0011
Geocenter to KBO     36.92164823 +/-    0.0012
# Hcoef:  8.07

The following table shows the complete astrometric record for 15TR362. 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 (15TR362) followed by the observatory code and reference code for the source of the astrometry.

2013 11  05.04525  01 01 57.68   -00 25 05.3   24.0r 15TR362   W84  C~55OI      
2013 11  05.08358  01 01 57.50   -00 25 06.1         15TR362   W84  C~55OI      
2013 11  05.17798  01 01 57.08   -00 25 07.9         15TR362   W84  C~55OI      
2013 11  23.13037  01 00 48.512  -00 29 50.29  23.9r 15TR362   W84  C~55OI      
2014 10  02.28551  01 10 47.336  +00 33 56.22  23.9r 15TR362   W84  C~55OI      
2015 10  10.309081 01 16 17.370  +01 14 08.66  23.7r 15TR362   568  C~2TuV      
2015 10  10.323343 01 16 17.301  +01 14 08.24  23.7r 15TR362   568  C~2TuV      
2015 10  10.343871 01 16 17.195  +01 14 07.62  23.8r 15TR362   568  C~2TuV      
2015 10  10.346052 01 16 17.181  +01 14 07.54  23.6r 15TR362   568  C~2TuV      
2015 10  10.378246 01 16 17.022  +01 14 06.63  23.7r 15TR362   568  C~2TuV      
2015 10  10.421292 01 16 16.803  +01 14 05.28  23.8r 15TR362   568  C~2TuV      
2015 10  14.288959 01 15 57.530  +01 12 12.42  24.3g 15TR362   568  C~2TuV      
2015 10  14.303346 01 15 57.459  +01 12 12.00  24.2g 15TR362   568  C~2TuV      
2015 10  14.323964 01 15 57.356  +01 12 11.39  24.3g 15TR362   568  C~2TuV      
2015 10  14.358183 01 15 57.185  +01 12 10.39  24.5g 15TR362   568  C~2TuV      
2015 10  14.400988 01 15 56.962  +01 12 09.18  24.5g 15TR362   568  C~2TuV      
2015 11  07.11873  01 14 02.956  +01 02 06.71  23.8r 15TR362   W84  C~55OI      
2016 08  16.38713  01 25 56.114  +02 23 06.47  23.2i 15TR362   W84  C~55OI      
2016 08  26.32961  01 25 31.771  +02 19 25.79  23.4r 15TR362   W84  C~55OI      
2016 08  31.35825  01 25 16.432  +02 17 20.36  24.5g 15TR362   W84  C~55OI      
2016 10  23.22246  01 21 18.990  +01 51 55.42  23.7r 15TR362   W84  C~55OI      
2016 10  29.16423  01 20 49.925  +01 49 22.58  23.9r 15TR362   W84  C~55OI      
2017 08  22.39195  01 31 51.346  +03 04 53.11  23.7r 15TR362   W84  C~55OI      
2017 08  28.33629  01 31 35.648  +03 02 38.14  22.8i 15TR362   W84  C~55OI      
2017 08  28.33766  01 31 35.638  +03 02 38.01  24.1r 15TR362   W84  C~55OI      
2017 08  28.33902  01 31 35.653  +03 02 38.10  23.4z 15TR362   W84  C~55OI      
2017 09  14.32779  01 30 36.272  +02 55 11.34  23.3z 15TR362   W84  C~55OI      
2018 09  11.35717  01 37 01.291  +03 40 49.88  23.8r 15TR362   W84  C~55OI      

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     0.14       0.00    -0.15
     2   0.0001     -2.80    -0.01       0.30    -0.11
     3   0.0004     -9.31     0.00       1.07     0.03
     4   0.0495  -1067.13    -0.03     137.31     0.02
     5   0.9069   8701.16    -0.03     202.16    -0.14
     6   1.9282  14215.78    -0.07     520.21     0.10
     7   1.9282  14214.66    -0.03     520.22     0.08
     8   1.9283  14212.94    -0.07     520.26     0.08
     9   1.9283  14212.72    -0.11     520.27     0.08
    10   1.9284  14210.15    -0.04     520.35     0.10
    11   1.9285  14206.59    -0.09     520.37     0.03
    12   1.9391  13894.95    -0.05     527.60     0.13
    13   1.9391  13893.80    -0.03     527.63     0.11
    14   1.9392  13892.13    -0.01     527.66     0.09
    15   1.9393  13889.37     0.02     527.73     0.06
    16   1.9394  13885.80    -0.05     527.90     0.11
    17   2.0043  12068.76     0.12     631.10    -0.02
    18   2.7799  23900.42    -0.00    1004.13     0.05
    19   2.8071  23473.21     0.07     940.02    -0.07
    20   2.8208  23209.42     0.18     912.31    -0.19
    21   2.9656  19296.16    -0.00     872.26    -0.30
    22   2.9818  18831.21     0.15     898.91    -0.17
    23   3.7956  29877.62     0.03    1281.89     0.02
    24   3.8119  29603.11    -0.00    1246.79     0.04
    25   3.8119  29602.92    -0.13    1246.73    -0.02
    26   3.8119  29603.17     0.19    1246.73    -0.01
    27   3.8584  28590.56    -0.05    1173.77     0.07
    28   4.8496  35118.10    -0.10    1505.46    -0.01

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.

15TR362    quality flag:2

Type:         7:4EEE  SCATNEAR    7:4EEE

axisobj        44.158    44.181    44.135
ecceobj         0.164     0.164     0.164
incobj          7.012     7.012     7.012
qmin           36.387    34.552    36.402
qmax           51.633    53.713    51.457
amean          43.726    43.736    43.726
amin           43.262    43.181    43.273
amax           44.264    44.321    44.233
emean           0.155     0.164     0.149
emin            0.142     0.123     0.131
emax            0.167     0.212     0.165
imean           5.089     5.017     5.497
imin            4.183     3.136     4.543
imax            6.237     6.890     6.675
excite_mean     0.178     0.187     0.177
fracstop        1.000     1.000     1.000
cjmean          3.060     3.055     3.060

libcent 0       182.9    -180.0     179.3
libamp  0       140.4    -180.0     128.3
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       165.0     183.0     188.7
kozaiamp        179.9     180.0     180.0