Orbit Fit and Astrometric record for 14SQ350

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: 14SQ350   
# Created Mon Oct 23 01:38:29 2017
# Orbit generated from Bernstein formalism
# Fitting   23 observations of   23
# Arc:   2.20y
# First observation: 2014/09/24
#  Last observation: 2016/12/05
Preliminary a, adot, b, bdot, g, gdot:
  -0.000034   0.019103  -0.000014   0.009176   0.022856   0.000000
# Chi-squared of fit:    15.38 DOF:   40 RMS:  0.14
# Min/Max residuals:    -0.28    0.32
# Exact a, adot, b, bdot, g, gdot:
  1.308191E-05  1.915105E-02  6.719497E-06  9.200018E-03  2.297295E-02  2.424206E-03
# Covariance matrix:
  4.3233E-13 -4.4518E-13  2.6469E-14 -1.2355E-13 -2.8431E-13 -5.9241E-12
 -4.4518E-13  1.6487E-12 -1.6590E-13  7.9389E-13  1.5038E-12  3.8287E-11
  2.6469E-14 -1.6590E-13  4.0284E-13 -2.8034E-13 -1.5812E-13 -4.1927E-12
 -1.2355E-13  7.9389E-13 -2.8034E-13  5.3584E-13  7.3801E-13  2.0248E-11
 -2.8431E-13  1.5038E-12 -1.5812E-13  7.3801E-13  1.6998E-12  3.5384E-11
 -5.9241E-12  3.8287E-11 -4.1927E-12  2.0248E-11  3.5384E-11  9.7851E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -16.516305   36.675588    0.587818   -0.231823   -0.782363  2456924.816611
# Heliocentric elements and errors
Epoch:              2456920.5000  =  2014/09/20
Mean Anomaly:          100.16995 +/-     0.319
Argument of Peri:      214.08042 +/-     0.290
Long of Asc Node:       66.40704 +/-     0.001
Inclination:            29.79818 +/-     0.001
Eccentricity:         0.10547233 +/-    0.0013
Semi-Major Axis:     43.06365053 +/-    0.0112
Time of Perihelion: 2428199.4944 +/-      90.9
Perihelion:          38.52162689 +/-    0.0570
Aphelion:            47.60567418 +/-    0.0574
Period (y)              282.6015 +/-      0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.47428360 +/-    0.0019
Ecliptic Y           24.94443526 +/-    0.0014
Ecliptic Z          -12.37466223 +/-    0.0007
Ecliptic XDOT        -0.00089573 +/-    0.0000
Ecliptic YDOT         0.00217756 +/-    0.0000
Ecliptic ZDOT         0.00096917 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.31515932 +/-    0.0017
Geocenter to KBO     43.52945705 +/-    0.0025
# Hcoef:  7.55

The following table shows the complete astrometric record for 14SQ350. 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 (14SQ350) followed by the observatory code and reference code for the source of the astrometry.

2014 09  24.315833 02 38 48.90   -01 53 37.6   23.7r 14SQ350   W84  C~2Azv      
2014 09  30.281331 02 38 27.79   -01 56 08.2   23.5i 14SQ350   W84  C~2Azv      
2014 10  03.370949 02 38 16.09   -01 57 25.1   24.0r 14SQ350   W84  C~2Azv      
2015 08  31.291667 02 43 17.73   -00 53 06.1   23.1i 14SQ350   W84  C~2Azv      
2015 08  31.295625 02 43 17.74   -00 53 06.4   23.1z 14SQ350   W84  C~2Azv      
2015 09  26.227500 02 42 11.86   -01 03 29.7   22.8i 14SQ350   W84  C~2Azv      
2016 09  22.311019 02 45 49.53   -00 11 37.7   23.5i 14SQ350   W84  C~2Azv      
2016 09  22.317639 02 45 49.52   -00 11 37.9   23.7z 14SQ350   W84  C~2Azv      
2016 09  23.288738 02 45 46.40   -00 12 01.7   22.9i 14SQ350   W84  C~2Azv      
2016 09  26.384653 02 45 36.12   -00 13 15.8   23.5r 14SQ350   W84  C~2Azv      
2016 09  26.387002 02 45 36.10   -00 13 16.1   23.3i 14SQ350   W84  C~2Azv      
2016 09  26.393646 02 45 36.09   -00 13 16.0   23.4z 14SQ350   W84  C~2Azv      
2016 10  02.307760 02 45 14.92   -00 15 37.4   23.9g 14SQ350   W84  C~2Azv      
2016 10  02.309977 02 45 14.89   -00 15 37.2   23.5r 14SQ350   W84  C~2Azv      
2016 10  02.312338 02 45 14.88   -00 15 37.5   23.3i 14SQ350   W84  C~2Azv      
2016 10  27.155712 02 43 29.57   -00 24 33.0   24.0g 14SQ350   W84  C~2Azv      
2016 10  27.157928 02 43 29.55   -00 24 32.9   23.3r 14SQ350   W84  C~2Azv      
2016 10  27.160289 02 43 29.55   -00 24 33.2   23.1i 14SQ350   W84  C~2Azv      
2016 11  10.100289 02 42 24.91   -00 28 15.1   23.2z 14SQ350   W84  C~2Azv      
2016 11  26.182384 02 41 12.65   -00 30 46.1   23.3r 14SQ350   W84  C~2Azv      
2016 11  26.184745 02 41 12.64   -00 30 45.9   23.3i 14SQ350   W84  C~2Azv      
2016 12  05.186597 02 40 35.68   -00 31 12.7   23.0i 14SQ350   W84  C~2Azv      
2016 12  05.189329 02 40 35.66   -00 31 12.7   23.8g 14SQ350   W84  C~2Azv      

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    -0.08
  2   0.0163   -347.99     0.12     -41.71    -0.03
  3   0.0248   -538.76    -0.02     -58.61    -0.11
  4   0.9335   4981.23    -0.15    2153.92     0.29
  5   0.9336   4981.28     0.01    2153.59     0.01
  6   1.0045   3845.23    -0.09    1878.56     0.08
  7   1.9959   7937.81     0.17    3785.63     0.32
  8   1.9959   7937.60     0.32    3785.49     0.23
  9   1.9986   7885.56    -0.11    3777.88    -0.13
 10   2.0070   7715.48     0.07    3756.89     0.08
 11   2.0070   7715.10    -0.18    3756.70    -0.09
 12   2.0071   7714.99     0.09    3756.84     0.09
 13   2.0232   7368.37     0.15    3724.24    -0.26
 14   2.0233   7368.01    -0.07    3724.57     0.08
 15   2.0233   7367.77    -0.17    3724.34    -0.14
 16   2.0913   5697.90    -0.08    3721.38    -0.17
 17   2.0913   5697.65    -0.18    3721.57     0.01
 18   2.0913   5697.55    -0.10    3721.29    -0.28
 19   2.1295   4707.13     0.03    3820.69     0.09
 20   2.1735   3631.23    -0.03    4023.76     0.03
 21   2.1735   3631.15     0.05    4024.00     0.23
 22   2.1981   3097.03     0.14    4175.65    -0.14
 23   2.1981   3096.74     0.01    4175.75    -0.09

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.

14SQ350    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.407    43.443    43.373
ecceobj         0.107     0.110     0.104
incobj         29.764    29.762    29.765
qmin           37.684    37.429    37.872
qmax           48.839    49.121    48.638
amean          43.127    43.166    43.127
amin           42.775    42.826    42.778
amax           43.486    43.528    43.498
emean           0.107     0.114     0.106
emin            0.089     0.098     0.088
emax            0.124     0.129     0.120
imean          28.516    28.452    28.507
imin           28.294    28.112    28.200
imax           28.735    28.807    28.782
excite_mean     0.489     0.490     0.489
fracstop        1.000     1.000     1.000
cjmean          2.790     2.790     2.790

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       180.0     179.8     180.2
kozaiamp        180.0     180.0     180.0