Orbit Fit and Astrometric record for 14SR403

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: 14SR403   
# Created Fri Dec  3 02:12:41 2021
# Orbit generated from Bernstein formalism
# Fitting     12 observations of     12
# Arc:   3.98y
# First observation: 2014/09/24
#  Last observation: 2018/09/15
Preliminary a, adot, b, bdot, g, gdot:
  -0.000074   0.012310   0.000001  -0.001771   0.017685   0.000000
# Chi-squared of fit:     4.85 DOF:     18 RMS:  0.11
# Min/Max residuals:    -0.24    0.21
# Exact a, adot, b, bdot, g, gdot:
  1.109871E-05  1.207748E-02 -1.723621E-06 -1.733426E-03  1.707343E-02 -5.801369E-03
# Covariance matrix:
  3.3853E-13 -2.7573E-13 -6.2701E-15  2.2389E-14 -1.0651E-13 -4.0496E-12
 -2.7573E-13  5.7155E-13  1.6154E-14 -6.7503E-14  4.9459E-13  1.1833E-11
 -6.2701E-15  1.6154E-14  2.8108E-13 -1.0519E-13 -7.6394E-14  3.9979E-13
  2.2389E-14 -6.7503E-14 -1.0519E-13  7.7803E-14 -1.4339E-13 -1.5693E-12
 -1.0651E-13  4.9459E-13 -7.6394E-14 -1.4339E-13  8.0339E-12  9.9682E-12
 -4.0496E-12  1.1833E-11  3.9979E-13 -1.5693E-12  9.9682E-12  2.7840E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -26.720497  -54.172973   -0.821991   -0.260454   -0.517698  2456924.548218
# Heliocentric elements and errors
Epoch:              2456920.5000  =  2014/09/20
Mean Anomaly:          284.64128 +/-     0.246
Argument of Peri:       18.23925 +/-     0.097
Long of Asc Node:       53.40730 +/-     0.003
Inclination:            27.46285 +/-     0.000
Eccentricity:         0.42289309 +/-    0.0009
Semi-Major Axis:     55.32606548 +/-    0.0627
Time of Perihelion: 2488385.2388 +/-      87.6
Perihelion:          31.92905474 +/-    0.0611
Aphelion:            78.72307622 +/-    0.1019
Period (y)              411.5313 +/-      0.70
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.62631894 +/-    0.0051
Ecliptic Y          -42.40399655 +/-    0.0070
Ecliptic Z          -26.33567100 +/-    0.0044
Ecliptic XDOT         0.00100606 +/-    0.0000
Ecliptic YDOT         0.00190411 +/-    0.0000
Ecliptic ZDOT         0.00017012 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   59.09222064 +/-    0.0061
Geocenter to KBO     58.57053475 +/-    0.0097
# Hcoef:  6.14

The following table shows the complete astrometric record for 14SR403. 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 (14SR403) followed by the observatory code and reference code for the source of the astrometry.

2014 09  24.04744  21 08 27.629  -44 28 32.67  23.9g 14SR403   W84  C~55S8      
2014 09  24.06447  21 08 27.573  -44 28 32.29  23.7r 14SR403   W84  C~55S8      
2014 09  27.04978  21 08 18.758  -44 27 55.91  24.5r 14SR403   W84  C~55S8      
2014 10  14.02671  21 07 41.682  -44 23 03.26  23.6r 14SR403   W84  C~55S8      
2015 09  13.09250  21 12 57.528  -44 21 50.91  23.1r 14SR403   W84  C~55S8      
2015 09  13.09388  21 12 57.527  -44 21 50.86  23.4i 14SR403   W84  C~55S8      
2016 09  23.01421  21 16 13.080  -44 11 38.96  23.5r 14SR403   W84  C~55S8      
2016 09  23.01557  21 16 13.070  -44 11 38.94  24.4g 14SR403   W84  C~55S8      
2016 10  02.05471  21 15 46.748  -44 09 43.29  24.2r 14SR403   W84  C~55S8      
2017 10  16.12089  21 19 11.453  -43 56 07.33  24.0i 14SR403   W84  C~55S8      
2017 10  16.12226  21 19 11.428  -43 56 07.35  24.0r 14SR403   W84  C~55S8      
2018 09  15.20625  21 24 34.060  -43 53 04.59  23.9r 14SR403   W84  C~55S8      

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     0.02       0.00     0.02
     2   0.0000     -0.44     0.05       0.55     0.21
     3   0.0082    -77.78    -0.24      65.72     0.05
     4   0.0547   -358.29     0.14     471.56    -0.07
     5   0.9693   2860.60     0.04    -583.47    -0.10
     6   0.9693   2860.60     0.10    -583.42    -0.08
     7   1.9985   5043.85    -0.09    -731.22    -0.13
     8   1.9985   5043.76    -0.15    -731.16    -0.11
     9   2.0233   4818.39     0.12    -524.14     0.12
    10   3.0611   7173.34     0.11    -537.76    -0.05
    11   3.0611   7173.08    -0.14    -537.68    -0.01
    12   3.9758  10492.50     0.05   -1640.15     0.15

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.

14SR403    quality flag:3

Type:         5:2EEE    5:2EEE    5:2EEE
Type:         5:2EII              5:2EII

axisobj        55.709    55.892    55.528
ecceobj         0.424     0.426     0.422
incobj         27.509    27.508    27.509
qmin           31.713    31.495    31.737
qmax           80.254    80.920    80.388
amean          55.461    55.462    55.461
amin           54.816    54.596    54.895
amax           56.336    56.500    56.281
emean           0.356     0.416     0.397
emin            0.271     0.397     0.368
emax            0.427     0.433     0.428
imean          29.413    26.764    27.679
imin           26.458    26.190    26.447
imax           32.371    27.365    28.943
excite_mean     0.609     0.613     0.611
fracstop        1.000     1.000     1.000
cjmean          2.748     2.747     2.749

libcent 0       177.1     179.1     179.4
libamp  0        98.5     154.2      29.1
libcent 1       220.7    -180.0     213.7
libamp  1       119.8    -180.0      42.4
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        28.2     182.1      20.2
kozaiamp         15.6     180.0      11.4