Orbit Fit and Astrometric record for 14TY115

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: 14TY115   
# Created Sat Dec  4 02:12:49 2021
# Orbit generated from Bernstein formalism
# Fitting     11 observations of     11
# Arc:   4.12y
# First observation: 2014/10/03
#  Last observation: 2018/11/15
Preliminary a, adot, b, bdot, g, gdot:
   0.000311   0.032801  -0.000057  -0.007867   0.027206   0.000000
# Chi-squared of fit:     5.13 DOF:     16 RMS:  0.12
# Min/Max residuals:    -0.15    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.998117E-05  3.324302E-02 -4.906190E-06 -7.966473E-03  2.711589E-02  3.152290E-03
# Covariance matrix:
  1.0201E-12  4.2255E-14 -1.1919E-13 -2.3807E-14  9.8057E-13  1.0354E-12
  4.2255E-14  6.9300E-13 -7.1167E-15 -1.6531E-13  4.3887E-13  6.0152E-12
 -1.1919E-13 -7.1167E-15  3.2962E-13 -9.2643E-14 -1.5806E-13 -2.7657E-14
 -2.3807E-14 -1.6531E-13 -9.2643E-14  9.2305E-14 -9.8653E-14 -1.5492E-12
  9.8057E-13  4.3887E-13 -1.5806E-13 -9.8653E-14  1.4560E-12  3.8098E-12
  1.0354E-12  6.0152E-12 -2.7657E-14 -1.5492E-12  3.8098E-12  5.6315E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -22.881971   21.268081    0.201059   -0.381882   -0.905271  2456933.793808
# Heliocentric elements and errors
Epoch:              2456930.5000  =  2014/09/30
Mean Anomaly:            3.49130 +/-     0.009
Argument of Peri:      226.37848 +/-     0.035
Long of Asc Node:      143.63735 +/-     0.001
Inclination:            25.98606 +/-     0.000
Eccentricity:         0.53643829 +/-    0.0002
Semi-Major Axis:     80.70716508 +/-    0.0354
Time of Perihelion: 2454362.1707 +/-       6.3
Perihelion:          37.41275113 +/-    0.0227
Aphelion:           124.00157902 +/-    0.0565
Period (y)              725.0640 +/-      0.48
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.64839359 +/-    0.0014
Ecliptic Y           12.49542215 +/-    0.0005
Ecliptic Z          -14.33992217 +/-    0.0006
Ecliptic XDOT        -0.00124030 +/-    0.0000
Ecliptic YDOT         0.00311617 +/-    0.0000
Ecliptic ZDOT        -0.00086471 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.78473960 +/-    0.0013
Geocenter to KBO     36.87875095 +/-    0.0016
# Hcoef:  7.93

The following table shows the complete astrometric record for 14TY115. 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 (14TY115) followed by the observatory code and reference code for the source of the astrometry.

2014 10  03.29303  01 52 59.496  -12 55 59.74  24.0r 14TY115   W84  C~55SO      
2014 11  21.22583  01 49 10.749  -13 15 07.68  23.2r 14TY115   W84  C~55SO      
2014 11  21.23130  01 49 10.759  -13 15 07.52  24.4g 14TY115   W84  C~55SO      
2014 12  23.07137  01 47 37.048  -13 09 54.48  23.7i 14TY115   W84  C~55SO      
2014 12  24.11955  01 47 35.431  -13 09 29.51  24.3r 14TY115   W84  C~55SO      
2016 11  25.11500  02 04 34.477  -12 38 47.64  23.6r 14TY115   W84  C~55SO      
2017 11  01.15617  02 14 10.432  -12 14 16.65  22.9z 14TY115   W84  C~55SO      
2017 12  15.10462  02 11 08.327  -12 17 25.26  23.7r 14TY115   W84  C~55SO      
2017 12  23.14087  02 10 48.316  -12 14 59.86  23.6i 14TY115   W84  C~55SO      
2018 11  15.25765  02 20 44.407  -11 58 05.48  23.7r 14TY115   W84  C~55SO      
2018 11  15.25902  02 20 44.399  -11 58 05.43  23.5i 14TY115   W84  C~55SP      

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    -0.12       0.00     0.05
     2   0.1340  -3528.18    -0.15     202.81     0.05
     3   0.1340  -3527.99     0.36     202.90     0.04
     4   0.2212  -4678.71    -0.04    1007.89    -0.12
     5   0.2240  -4691.23    -0.02    1039.91     0.03
     6   2.1460   9786.05    -0.13   -2969.35    -0.13
     7   3.0797  18160.09     0.23   -4959.56    -0.10
     8   3.2000  15617.55    -0.12   -4065.69     0.09
     9   3.2220  15404.41     0.07   -3815.05     0.01
    10   4.1176  23905.47    -0.04   -6407.58    -0.00
    11   4.1176  23905.38    -0.03   -6407.49     0.07

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.

14TY115    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        82.309    82.423    82.195
ecceobj         0.546     0.546     0.545
incobj         25.943    25.943    25.943
qmin           36.437    35.834    35.980
qmax          127.918   128.796   128.031
amean          80.848    80.859    80.831
amin           79.688    79.653    79.482
amax           82.565    82.804    82.474
emean           0.537     0.541     0.538
emin            0.527     0.524     0.521
emax            0.549     0.558     0.553
imean          24.713    24.311    24.582
imin           24.329    23.517    23.810
imax           25.100    25.298    25.681
excite_mean     0.680     0.680     0.680
fracstop        1.000     1.000     1.000
cjmean          2.884     2.884     2.884

libcent 0       181.0    -180.0    -180.0
libamp  0       176.8    -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       226.3     184.6     183.1
kozaiamp        180.0     180.0     180.0