Orbit Fit and Astrometric record for 14SN350

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: 14SN350   
# Created Mon Oct 23 01:38:29 2017
# Orbit generated from Bernstein formalism
# Fitting    9 observations of    9
# Arc:   1.11y
# First observation: 2014/09/25
#  Last observation: 2015/11/03
Preliminary a, adot, b, bdot, g, gdot:
   0.000002   0.029025   0.000004  -0.013807   0.028542   0.000000
# Chi-squared of fit:     4.59 DOF:   12 RMS:  0.13
# Min/Max residuals:    -0.30    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.549712E-05  2.889215E-02 -6.851794E-06 -1.370506E-02  2.845752E-02 -4.076021E-03
# Covariance matrix:
  5.3636E-13  1.8093E-12  8.5671E-14 -1.6224E-12  1.6188E-12  9.9433E-11
  1.8093E-12  1.8519E-10  7.6084E-12 -1.8457E-10  5.8796E-11  1.1251E-08
  8.5671E-14  7.6084E-12  5.7754E-13 -7.8636E-12  2.4262E-12  4.6379E-10
 -1.6224E-12 -1.8457E-10 -7.8636E-12  1.8602E-10 -5.7099E-11 -1.1299E-08
  1.6188E-12  5.8796E-11  2.4262E-12 -5.7099E-11  2.2435E-11  3.4827E-09
  9.9433E-11  1.1251E-08  4.6379E-10 -1.1299E-08  3.4827E-09  6.8872E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
  -20.442765   27.822704    0.440259   -0.315543   -0.846990  2456925.783533
# Heliocentric elements and errors
Epoch:              2456920.5000  =  2014/09/20
Mean Anomaly:          328.37885 +/-     2.817
Argument of Peri:      268.54945 +/-     5.444
Long of Asc Node:      171.71415 +/-     0.019
Inclination:            32.07780 +/-     0.012
Eccentricity:         0.22064753 +/-    0.0212
Semi-Major Axis:     43.35217834 +/-    0.3690
Time of Perihelion: 2466078.2739 +/-     807.4
Perihelion:          33.78662719 +/-    0.9620
Aphelion:            52.91772948 +/-    1.0226
Period (y)              285.4464 +/-      3.64
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.12264504 +/-    0.0048
Ecliptic Y           15.40254883 +/-    0.0025
Ecliptic Z          -12.27369435 +/-    0.0021
Ecliptic XDOT        -0.00203428 +/-    0.0001
Ecliptic YDOT         0.00206729 +/-    0.0000
Ecliptic ZDOT        -0.00109842 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.98966279 +/-    0.0043
Geocenter to KBO     35.14010248 +/-    0.0058
# Hcoef:  8.13

The following table shows the complete astrometric record for 14SN350. 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 (14SN350) followed by the observatory code and reference code for the source of the astrometry.

2014 09  25.282755 02 12 23.59   -08 25 23.9   23.3r 14SN350   W84  C~1yT5      
2014 10  02.369549 02 11 52.46   -08 30 55.8   23.1i 14SN350   W84  C~1yT5      
2014 10  02.370914 02 11 52.44   -08 30 55.8   23.3r 14SN350   W84  C~1yT5      
2014 10  03.284769 02 11 48.22   -08 31 37.7   23.7g 14SN350   W84  C~1yT5      
2014 10  30.210995 02 09 31.96   -08 49 14.6   22.9r 14SN350   W84  C~1yT5      
2014 10  30.212350 02 09 31.95   -08 49 14.3   23.0i 14SN350   W84  C~1yT5      
2015 11  03.163692 02 16 38.05   -09 00 03.6   23.0r 14SN350   W84  C~1yT5      
2015 11  03.165058 02 16 38.05   -09 00 03.7   22.8i 14SN350   W84  C~1yT5      
2015 11  03.166447 02 16 38.05   -09 00 03.9   24.1g 14SN350   W84  C~1yT5      

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     0.11       0.00    -0.16
  2   0.0194   -549.68     0.16    -146.04    -0.00
  3   0.0194   -549.95    -0.00    -145.94     0.13
  4   0.0219   -623.36    -0.30    -162.86     0.06
  5   0.0956  -2887.54    -0.03    -434.68    -0.18
  6   0.0956  -2887.57     0.06    -434.35     0.15
  7   1.1058   2782.45    -0.07   -3289.81     0.13
  8   1.1058   2782.41     0.01   -3289.91     0.03
  9   1.1058   2782.34     0.06   -3290.09    -0.16

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.

14SN350    quality flag:2

Type:       SCATEXTD  SCATNEAR  SCATEXTD

axisobj        43.658    44.596    43.315
ecceobj         0.223     0.277     0.188
incobj         31.971    31.929    32.009
qmin           33.418    31.778    34.565
qmax           53.624    57.163    51.740
amean          43.343    44.215    42.983
amin           42.966    43.754    42.624
amax           43.765    44.814    43.401
emean           0.203     0.254     0.174
emin            0.184     0.224     0.156
emax            0.226     0.281     0.193
imean          31.837    31.950    31.665
imin           31.255    31.251    31.235
imax           32.183    32.535    32.098
excite_mean     0.565     0.587     0.553
fracstop        1.000     1.000     1.000
cjmean          2.691     2.670     2.704

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       185.1     187.2     186.7
kozaiamp        179.9     180.0     180.0