Orbit Fit and Astrometric record for 15TS350

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: 15TS350   
# Created Tue Oct 17 01:38:35 2017
# Orbit generated from Bernstein formalism
# Fitting   32 observations of   36
# Arc:   1.77y
# First observation: 2015/10/15
#  Last observation: 2017/07/24
Preliminary a, adot, b, bdot, g, gdot:
  -0.008974   0.204121   0.010400   0.298206   0.105398   0.000000
# Chi-squared of fit:    38.93 DOF:   58 RMS:  0.19
# Min/Max residuals:    -0.51    0.40
# Exact a, adot, b, bdot, g, gdot:
  2.380582E-05  2.662520E-01  4.014752E-05  4.243163E-01  1.695878E-01  2.708209E-01
# Covariance matrix:
  1.3133E-13 -1.6457E-13 -2.6075E-15 -1.3212E-14  2.2085E-13 -5.2574E-14
 -1.6457E-13  1.2496E-12 -7.2869E-14  1.3171E-12 -1.0605E-13  2.9226E-12
 -2.6075E-15 -7.2869E-14  7.9637E-14 -1.7997E-13 -3.4179E-14 -2.5232E-13
 -1.3212E-14  1.3171E-12 -1.7997E-13  2.1692E-12  3.5851E-13  4.2752E-12
  2.2085E-13 -1.0605E-13 -3.4179E-14  3.5851E-13  9.1551E-13  6.9559E-13
 -5.2574E-14  2.9226E-12 -2.5232E-13  4.2752E-12  6.9559E-13  9.3763E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -20.611929   27.780555    0.109021   -0.350134   -0.931418  2457310.958319
# Heliocentric elements and errors
Epoch:              2457310.5000  =  2015/10/15
Mean Anomaly:            0.39322 +/-     0.000
Argument of Peri:      277.00608 +/-     0.001
Long of Asc Node:       38.28715 +/-     0.000
Inclination:            58.07211 +/-     0.000
Eccentricity:         0.96279037 +/-    0.0000
Semi-Major Axis:    135.83804543 +/-    0.0925
Time of Perihelion: 2456678.8652 +/-       0.0
Perihelion:           5.05448355 +/-    0.0048
Aphelion:           266.62160731 +/-    0.1816
Period (y)             1583.2166 +/-      1.62
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            5.81058362 +/-    0.0000
Ecliptic Y            2.93902740 +/-    0.0000
Ecliptic Z           -2.07562967 +/-    0.0000
Ecliptic XDOT         0.00374915 +/-    0.0000
Ecliptic YDOT         0.00682775 +/-    0.0000
Ecliptic ZDOT         0.00487260 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    6.83439848 +/-    0.0000
Geocenter to KBO      5.89665172 +/-    0.0000
# Hcoef: 13.29

The following table shows the complete astrometric record for 15TS350. 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 (15TS350) followed by the observatory code and reference code for the source of the astrometry.

2015 10  15.45753  02 12 29.243  -08 35 43.60  21.6w 15TS350   F51  C~1bSH      
2015 10  15.47163  02 12 28.752  -08 35 43.31  21.5w 15TS350   F51  C~1bSH      
2015 10  15.48576  02 12 28.253  -08 35 42.34  21.7w 15TS350   F51  C~1bSH      
2015 10  16.28698  02 12 01.24   -08 35 05.6   21.3R 15TS350   291  C~1bSH      
2015 10  16.29694  02 12 00.93   -08 35 04.7         15TS350   291  C~1bSH      
2015 10  20.346270 02 09 43.447  -08 31 23.61  21.0R 15TS350   568  C~1bSH      
2015 10  20.347384 02 09 43.413  -08 31 23.59  21.1R 15TS350   568  C~1bSH      
2015 10  20.348486 02 09 43.371  -08 31 23.47  21.2R 15TS350   568  C~1bSH      
2015 10  22.10807  02 08 43.39   -08 29 28.9   21.3V 15TS350   807  C~1bSH      
2015 10  22.11714  02 08 43.09   -08 29 27.6   21.3V 15TS350   807  C~1bSH      
2015 10  22.12620  02 08 42.77   -08 29 27.6   21.3V 15TS350   807  C~1bSH      
2015 10  23.34507  02 08 01.07   -08 28 04.4   22.4R 15TS350   291  C~1bSH      
2015 10  23.35495  02 08 00.70   -08 28 03.8   22.0R 15TS350   291  C~1bSH      
2015 10  23.36484  02 08 00.41   -08 28 03.2   22.2R 15TS350   291  C~1bSH      
2015 10  31.32726  02 03 30.49   -08 16 35.2   20.9R 15TS350   291  C~1bSH      
2015 10  31.33739  02 03 30.13   -08 16 34.5   20.8R 15TS350   291  C~1bSH      
2015 10  31.34752  02 03 29.80   -08 16 33.3   20.4R 15TS350   291  C~1bSH      
2015 11  02.30703  02 02 24.41   -08 13 07.8   21.7R 15TS350   291  C~1bSH      
2015 11  02.38155  02 02 21.87   -08 12 59.7         15TS350   291  C~1bSH      
2015 11  02.42722  02 02 20.39   -08 12 54.2   21.5R 15TS350   291  C~1bSH      
2015 11  08.25133  01 59 10.55   -08 01 13.3   21.4R 15TS350   291  C~1cL2      
2015 11  08.26388  01 59 10.14   -08 01 10.4   21.3R 15TS350   291  C~1cL2      
2015 12  01.30356  01 48 30.477  -06 53 34.81  22.2w 15TS350   F51  C~1eP3      
2015 12  01.31551  01 48 30.194  -06 53 32.19  22.1w 15TS350   F51  C~1eP3      
2015 12  01.32748  01 48 29.930  -06 53 29.77  22.1w 15TS350   F51  C~1eP3      
2015 12  01.33942  01 48 29.662  -06 53 27.06  22.2w 15TS350   F51  C~1eP3      
2016 09  28.607509 02 36 43.264  +12 57 06.47  22.3G 15TS350   568  C~1yuA      
2016 09  28.609473 02 36 43.222  +12 57 06.54  22.3G 15TS350   568  C~1yuA      
2016 10  02.584019 02 35 12.136  +12 59 15.35  22.3G 15TS350   568  C~1yuA      
2016 10  02.586909 02 35 12.063  +12 59 15.51  22.4G 15TS350   568  C~1yuA      
2016 10  02.590024 02 35 11.988  +12 59 15.65  22.2G 15TS350   568  C~1yuA      
2016 10  27.385993 02 24 26.615  +13 07 18.67  22.4G 15TS350   568  C~20rM      
2016 10  27.388903 02 24 26.535  +13 07 18.73  22.4G 15TS350   568  C~20rM      
2017 07  24.616014 02 54 47.899  +23 50 34.77  23.5G 15TS350   568  C~2IDD      
2017 07  24.619313 02 54 47.924  +23 50 35.29  23.6G 15TS350   568  C~2IDD      
2017 07  24.622612 02 54 47.946  +23 50 35.91  23.5G 15TS350   568  C~2IDD      

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     0.21       0.00    -0.12
  2   0.0000     -6.70    -0.02       2.86    -0.41
  3   0.0001    -13.27    -0.10       6.40    -0.02
  4   0.0023   -374.64    -0.47     183.28    -0.23
  5   0.0023   -378.61     0.13     185.76     0.01
  6   0.0134  -2206.77     0.05    1116.34     0.15
  7   0.0134  -2207.23     0.10    1116.54     0.09
  8   0.0134  -2207.77     0.06    1116.88     0.16
  9   0.0182  -2999.59 (   0.60)   1539.06 (   0.07)
 10   0.0182  -3003.30 (   1.04)   1541.85 (   0.64)
 11   0.0183  -3007.74 (   0.73)   1543.53 (   0.11)
 12   0.0216  -3557.25    -0.04    1840.11     0.26
 13   0.0216  -3562.17    -0.46    1842.61     0.30
 14   0.0216  -3565.99     0.23    1844.69    -0.08
 15   0.0434  -7076.53     0.28    3899.96     0.20
 16   0.0435  -7081.29    -0.05    3902.50    -0.03
 17   0.0435  -7085.47     0.22    3905.34     0.06
 18   0.0489  -7924.20    -0.09    4438.67     0.03
 19   0.0491  -7956.76    -0.51    4459.49     0.14
 20   0.0492  -7975.45     0.40    4472.36     0.32
 21   0.0651 -10379.22     0.39    6117.05    -0.17
 22   0.0652 -10383.94 (   0.78)   6121.91 (   1.01)
 23   0.1283 -17968.80    -0.20   13259.22    -0.04
 24   0.1283 -17971.90    -0.28   13263.16     0.00
 25   0.1283 -17974.80    -0.15   13266.82    -0.25
 26   0.1284 -17977.66     0.01   13270.77    -0.20
 27   0.9559  50533.33     0.07   68220.28    -0.06
 28   0.9559  50532.73     0.11   68220.57    -0.07
 29   0.9668  49222.67     0.06   68841.59    -0.16
 30   0.9668  49221.64     0.04   68842.15    -0.06
 31   0.9668  49220.58     0.05   68842.69    -0.00
 32   1.0347  39818.41     0.17   72823.35    -0.11
 33   1.0347  39817.25     0.20   72823.84    -0.09
 34   1.7746  86378.67    -0.17  109364.36     0.12
 35   1.7746  86379.36    -0.15  109364.94     0.08
 36   1.7746  86380.06    -0.12  109365.66     0.18

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.

15TS350    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj       141.485   141.472   141.497
ecceobj         0.964     0.964     0.964
incobj         58.193    58.193    58.193
qmin            2.844     4.421     4.606
qmax         1699.596   441.588   277.956
amean         386.744   131.595   116.089
amin          130.047    63.106    92.520
amax          852.547   223.469   141.497
emean           0.984     0.957     0.957
emin            0.959     0.926     0.945
emax            0.997     0.980     0.964
imean          57.123    57.429    57.435
imin           55.559    56.677    56.983
imax           59.119    58.122    57.819
excite_mean     1.294     1.276     1.275
fracstop        0.058     0.025     0.014
cjmean          0.719     0.865     0.865

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       274.7     273.6     274.3
kozaiamp          6.7       5.8       4.5