Orbit Fit and Astrometric record for 14SQ403

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: 14SQ403   
# Created Fri Dec  3 02:12:41 2021
# Orbit generated from Bernstein formalism
# Fitting     18 observations of     18
# Arc:   3.38y
# First observation: 2014/09/20
#  Last observation: 2018/02/07
Preliminary a, adot, b, bdot, g, gdot:
   0.000304   0.017911  -0.000139  -0.010614   0.019829   0.000000
# Chi-squared of fit:     5.48 DOF:     30 RMS:  0.10
# Min/Max residuals:    -0.21    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.428782E-05  1.813705E-02 -8.478487E-06 -1.086023E-02  1.970204E-02  6.367408E-03
# Covariance matrix:
  6.2641E-13 -5.2042E-14  4.7902E-14 -1.0787E-14  4.0845E-13 -8.7004E-13
 -5.2042E-14  4.0678E-13  1.6231E-13 -3.0590E-13  3.1726E-13  8.3037E-12
  4.7902E-14  1.6231E-13  3.3583E-13 -2.4415E-13  1.7286E-13  3.7548E-12
 -1.0787E-14 -3.0590E-13 -2.4415E-13  3.3429E-13 -2.4608E-13 -7.5375E-12
  4.0845E-13  3.1726E-13  1.7286E-13 -2.4608E-13  6.5355E-13  5.5140E-12
 -8.7004E-13  8.3037E-12  3.7548E-12 -7.5375E-12  5.5140E-12  2.1135E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -33.050205   42.705515    0.720333   -0.383507   -0.589702  2456920.840348
# Heliocentric elements and errors
Epoch:              2456920.5000  =  2014/09/20
Mean Anomaly:            6.30990 +/-     0.018
Argument of Peri:      191.04487 +/-     0.065
Long of Asc Node:      180.38993 +/-     0.001
Inclination:            44.08151 +/-     0.000
Eccentricity:         0.66734895 +/-    0.0007
Semi-Major Axis:    140.08965140 +/-    0.2469
Time of Perihelion: 2446305.3111 +/-      11.6
Perihelion:          46.60096905 +/-    0.1293
Aphelion:           233.57833376 +/-    0.4236
Period (y)             1658.1251 +/-      4.38
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.26544288 +/-    0.0013
Ecliptic Y           28.80375675 +/-    0.0012
Ecliptic Z          -27.68146396 +/-    0.0011
Ecliptic XDOT        -0.00177389 +/-    0.0000
Ecliptic YDOT         0.00179234 +/-    0.0000
Ecliptic ZDOT        -0.00174742 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   51.35152047 +/-    0.0012
Geocenter to KBO     50.75615817 +/-    0.0021
# Hcoef:  6.26

The following table shows the complete astrometric record for 14SQ403. 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 (14SQ403) followed by the observatory code and reference code for the source of the astrometry.

2014 09  20.33957  03 20 40.988  -15 55 00.02  24.5g 14SQ403   W84  C~55S8      
2014 11  21.26070  03 17 15.836  -16 26 53.31  23.7g 14SQ403   W84  C~55S8      
2014 12  12.23603  03 15 58.482  -16 28 29.61  23.1i 14SQ403   W84  C~55S8      
2014 12  16.22253  03 15 45.435  -16 28 10.78  23.3r 14SQ403   W84  C~55S8      
2015 11  06.32699  03 23 10.858  -16 38 51.77  23.7r 14SQ403   W84  C~55S8      
2015 11  06.32837  03 23 10.835  -16 38 51.69  23.0i 14SQ403   W84  C~55S8      
2015 11  08.30993  03 23 03.132  -16 39 36.34  23.5g 14SQ403   W84  C~55S8      
2015 12  17.22182  03 20 37.669  -16 44 42.22  23.5i 14SQ403   W84  C~55S8      
2015 12  17.22319  03 20 37.659  -16 44 42.23  24.0r 14SQ403   W84  C~55S8      
2015 12  17.22457  03 20 37.658  -16 44 42.31  23.8g 14SQ403   W84  C~55S8      
2016 12  05.25940  03 26 08.189  -17 01 08.28  23.6i 14SQ403   W84  C~55S8      
2016 12  05.26077  03 26 08.185  -17 01 08.37  23.3r 14SQ403   W84  C~55S8      
2017 01  20.13459  03 24 10.705  -16 50 06.04  23.1z 14SQ403   W84  C~55S8      
2017 11  23.29465  03 31 43.778  -17 15 06.52  23.1r 14SQ403   W84  C~55S8      
2017 11  23.29604  03 31 43.762  -17 15 06.49  23.3g 14SQ403   W84  C~55S8      
2018 02  03.08542  03 28 47.903  -16 58 16.03  23.0i 14SQ403   W84  C~55S8      
2018 02  07.07189  03 28 48.054  -16 55 56.29  23.3r 14SQ403   W84  C~55S8      
2018 02  07.07326  03 28 48.049  -16 55 56.29  24.0g 14SQ403   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     0.06       0.00    -0.05
     2   0.1695  -3395.48    -0.02    -931.57     0.07
     3   0.2270  -4486.46    -0.07    -690.46     0.07
     4   0.2379  -4660.05     0.02    -616.48    -0.20
     5   1.1280   1251.14     0.12   -3165.32    -0.10
     6   1.1280   1250.85    -0.08   -3165.14     0.08
     7   1.1334   1131.77     0.04   -3173.67     0.28
     8   1.2399   -951.95     0.03   -2826.80    -0.02
     9   1.2399   -952.09    -0.05   -2826.77    -0.01
    10   1.2399   -952.13    -0.03   -2826.84    -0.11
    11   2.2092   3261.29     0.01   -5223.55     0.07
    12   2.2092   3261.21     0.00   -5223.62    -0.02
    13   2.3348   1862.03     0.05   -4071.59     0.06
    14   3.1758   7572.05    -0.08   -7533.36    -0.19
    15   3.1758   7571.84    -0.21   -7533.26    -0.10
    16   3.3723   5493.77     0.15   -5775.73     0.03
    17   3.3833   5539.63     0.08   -5643.58     0.08
    18   3.3833   5539.56    -0.01   -5643.56     0.06

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.

14SQ403    quality flag:2

Type:     10:1EEEEEE  SCATNEAR  SCATNEAR

axisobj       143.349   144.124   142.591
ecceobj         0.675     0.677     0.673
incobj         43.964    43.964    43.963
qmin           45.535    44.335    44.986
qmax          240.798   242.948   239.296
amean         139.754   140.117   138.765
amin          137.099   137.417   136.240
amax          143.909   144.370   142.742
emean           0.665     0.671     0.665
emin            0.657     0.661     0.657
emax            0.676     0.684     0.677
imean          43.691    43.371    43.492
imin           43.102    42.651    42.883
imax           44.221    44.139    44.132
excite_mean     0.959     0.960     0.957
fracstop        1.000     1.000     1.000
cjmean          2.542     2.541     2.543

libcent 0       172.6    -180.0    -180.0
libamp  0       171.6    -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       202.6     206.7     203.8
kozaiamp         12.5      16.3      13.4