Orbit Fit and Astrometric record for 14SC374

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: 14SC374   
# Created Tue Nov 30 02:12:45 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     27 observations of     27
# Arc:   6.07y
# First observation: 2014/09/25
#  Last observation: 2020/10/20
# Chi-squared of fit:    10.78 DOF:     48 RMS:  0.11
# Min/Max residuals:    -0.40    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.420825E-05  2.869555E-02 -7.446754E-06 -1.463008E-02  3.103109E-02  9.247924E-04
# Covariance matrix:
  2.7844E-13 -9.5059E-14 -3.0951E-14  3.0755E-14  9.0590E-14 -3.5194E-13
 -9.5059E-14  1.5076E-13  6.0842E-14 -6.9061E-14  1.5727E-13  8.3474E-13
 -3.0951E-14  6.0842E-14  1.9873E-13 -8.1789E-14  5.8851E-14  3.9616E-13
  3.0755E-14 -6.9061E-14 -8.1789E-14  5.7829E-14 -7.3720E-14 -4.4707E-13
  9.0590E-14  1.5727E-13  5.8851E-14 -7.3720E-14  4.2175E-13  9.2232E-13
 -3.5194E-13  8.3474E-13  3.9616E-13 -4.4707E-13  9.2232E-13  5.3918E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -21.113183   31.367790    0.495348   -0.314995   -0.816209  2456925.780748
# Heliocentric elements and errors
Epoch:              2456926.5000  =  2014/09/26
Mean Anomaly:          174.24807 +/-     0.040
Argument of Peri:       43.94777 +/-     0.037
Long of Asc Node:      176.32318 +/-     0.000
Inclination:            33.76904 +/-     0.000
Eccentricity:         0.09809398 +/-    0.0000
Semi-Major Axis:     30.10503066 +/-    0.0018
Time of Perihelion: 2427723.8330 +/-       7.2
Perihelion:          27.15190829 +/-    0.0021
Aphelion:            33.05815302 +/-    0.0024
Period (y)              165.1836 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           26.67075839 +/-    0.0005
Ecliptic Y           15.68253653 +/-    0.0003
Ecliptic Z          -11.60833875 +/-    0.0002
Ecliptic XDOT        -0.00165453 +/-    0.0000
Ecliptic YDOT         0.00195476 +/-    0.0000
Ecliptic ZDOT        -0.00123343 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.04579429 +/-    0.0005
Geocenter to KBO     32.22576768 +/-    0.0007
# Hcoef:  8.08

The following table shows the complete astrometric record for 14SC374. 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 (14SC374) followed by the observatory code and reference code for the source of the astrometry.

2014 09  25.27997  02 25 53.337  -07 53 36.59  23.2i 14SC374   W84  C~4yUY      
2014 09  25.27997  02 25 53.34   -07 53 36.6   22.9i 14SC374   W84  C~3cns      
2014 09  30.26875  02 25 30.231  -07 57 58.14  23.4g 14SC374   W84  C~4yUY      
2014 09  30.26875  02 25 30.23   -07 57 58.1   23.7g 14SC374   W84  C~3cns      
2015 10  23.29970  02 30 53.057  -08 29 17.03  24.1g 14SC374   W84  C~4yUY      
2015 12  14.17444  02 26 14.672  -08 46 37.29  23.2r 14SC374   W84  C~4yUY      
2015 12  14.17444  02 26 14.67   -08 46 37.3   23.2r 14SC374   W84  C~3cns      
2015 12  14.17582  02 26 14.661  -08 46 37.23  23.2i 14SC374   W84  C~4yUY      
2015 12  14.17582  02 26 14.66   -08 46 37.2   23.3i 14SC374   W84  C~3cns      
2016 09  24.30754  02 40 42.022  -08 19 14.66  23.4r 14SC374   W84  C~4yUY      
2016 09  24.30754  02 40 42.02   -08 19 14.7   23.3r 14SC374   W84  C~3cns      
2016 10  28.21327  02 37 45.487  -08 46 02.17  23.7g 14SC374   W84  C~4yUY      
2016 10  28.21327  02 37 45.49   -08 46 02.1   23.8g 14SC374   W84  C~3cns      
2016 11  25.19103  02 35 03.731  -08 58 19.41  23.5r 14SC374   W84  C~4yUY      
2016 11  25.19103  02 35 03.73   -08 58 19.4   23.4r 14SC374   W84  C~3cns      
2016 11  25.19239  02 35 03.716  -08 58 19.35  23.3g 14SC374   W84  C~4yUY      
2016 12  23.04317  02 32 59.901  -08 58 29.14  23.2i 14SC374   W84  C~4yUY      
2017 10  21.23130  02 45 52.703  -08 53 37.35  23.6g 14SC374   W84  C~4yUY      
2017 11  01.16823  02 44 49.064  -09 00 48.93  22.8z 14SC374   W84  C~4yUY      
2017 11  25.14615  02 42 29.323  -09 10 55.07  22.8i 14SC374   W84  C~4yUY      
2017 12  08.12578  02 41 22.361  -09 12 38.36  23.6r 14SC374   W84  C~4yUY      
2017 12  09.11526  02 41 17.685  -09 12 39.92  23.8g 14SC374   W84  C~4yUY      
2018 11  15.27555  02 50 52.399  -09 19 44.69  22.9i 14SC374   W84  C~4yUY      
2018 11  15.27693  02 50 52.382  -09 19 44.73  23.1r 14SC374   W84  C~4yUY      
2018 11  15.27830  02 50 52.367  -09 19 44.51  23.4g 14SC374   W84  C~4yUY      
2020 10  20.393000 03 08 14.652  -09 27 00.00  23.1G 14SC374   G37  C~4Kxe      
2020 10  20.434430 03 08 14.436  -09 27 01.93        14SC374   G37  C~4Kxe      

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     0.08       0.00     0.03
     2   0.0000      0.00     0.04       0.00     0.04
     3   0.0137      0.00     0.01       0.00     0.02
     4   0.0137      0.00    -0.00       0.00     0.06
     5   1.0760      0.00    -0.35       0.00     0.12
     6   1.2181      0.00     0.05       0.00    -0.06
     7   1.2181      0.00     0.08       0.00    -0.05
     8   1.2181      0.00    -0.01       0.00     0.03
     9   1.2181      0.00     0.00       0.00     0.00
    10   1.9987      0.00     0.03       0.00     0.00
    11   1.9987      0.00     0.06       0.00     0.04
    12   2.0915      0.00     0.00       0.00     0.07
    13   2.0915      0.00    -0.04       0.00     0.00
    14   2.1681      0.00     0.01       0.00    -0.09
    15   2.1681      0.00     0.02       0.00    -0.10
    16   2.1681      0.00    -0.09       0.00    -0.02
    17   2.2444      0.00     0.25       0.00    -0.04
    18   3.0717      0.00    -0.06       0.00     0.22
    19   3.1017      0.00     0.04       0.00     0.08
    20   3.1673      0.00     0.13       0.00    -0.15
    21   3.2029      0.00     0.01       0.00     0.02
    22   3.2056      0.00    -0.13       0.00    -0.40
    23   4.1396      0.00     0.12       0.00    -0.02
    24   4.1396      0.00    -0.01       0.00    -0.03
    25   4.1396      0.00    -0.11       0.00     0.22
    26   6.0701      0.00    -0.11       0.00     0.07
    27   6.0702      0.00     0.12       0.00    -0.00

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.

14SC374    quality flag:3

Type:            1:1       1:1       1:1

axisobj        30.250    30.250    30.250
ecceobj         0.094     0.094     0.094
incobj         33.652    33.652    33.652
qmin           26.160    26.159    26.160
qmax           34.178    34.178    34.178
amean          30.108    30.108    30.109
amin           29.894    29.894    29.894
amax           30.327    30.327    30.327
emean           0.092     0.092     0.091
emin            0.058     0.058     0.058
emax            0.128     0.128     0.128
imean          33.155    33.155    33.155
imin           32.897    32.897    32.897
imax           33.384    33.384    33.384
excite_mean     0.555     0.555     0.555
fracstop        1.000     1.000     1.000
cjmean          2.668     2.668     2.668

libcent 0        58.3      58.3      58.3
libamp  0         4.7       4.7       4.7
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       175.4     175.4     175.4
kozaiamp        179.9     179.9     179.9