Orbit Fit and Astrometric record for 14SR373

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: 14SR373   
# Created Tue Dec  7 02:12:46 2021
# Orbit generated from Bernstein formalism
# Fitting     22 observations of     22
# Arc:   4.16y
# First observation: 2014/09/20
#  Last observation: 2018/11/18
Preliminary a, adot, b, bdot, g, gdot:
   0.000106   0.027759  -0.000056  -0.008721   0.025528   0.000000
# Chi-squared of fit:     9.37 DOF:     38 RMS:  0.12
# Min/Max residuals:    -0.22    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.756364E-05  2.791386E-02 -6.137400E-06 -8.802265E-03  2.547819E-02  4.576863E-03
# Covariance matrix:
  4.0384E-13 -1.6664E-14  3.6045E-14 -4.3094E-15  3.3223E-13  1.7233E-13
 -1.6664E-14  2.5334E-13  6.0799E-14 -8.6435E-14  2.3160E-13  2.3920E-12
  3.6045E-14  6.0799E-14  1.9653E-13 -8.4417E-14  9.5127E-14  6.3055E-13
 -4.3094E-15 -8.6435E-14 -8.4417E-14  6.9778E-14 -7.3851E-14 -9.6594E-13
  3.3223E-13  2.3160E-13  9.5127E-14 -7.3851E-14  6.1730E-13  2.1132E-12
  1.7233E-13  2.3920E-12  6.3055E-13 -9.6594E-13  2.1132E-12  2.6653E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -31.650291   44.576389    0.742848   -0.356484   -0.578616  2456920.845878
# Heliocentric elements and errors
Epoch:              2456920.5000  =  2014/09/20
Mean Anomaly:           11.63939 +/-     0.012
Argument of Peri:      214.85103 +/-     0.031
Long of Asc Node:      165.83424 +/-     0.001
Inclination:            35.60905 +/-     0.000
Eccentricity:         0.38472700 +/-    0.0001
Semi-Major Axis:     62.67327867 +/-    0.0125
Time of Perihelion: 2451061.1476 +/-       5.9
Perihelion:          38.56117591 +/-    0.0116
Aphelion:            86.78538142 +/-    0.0194
Period (y)              496.1715 +/-      0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           24.80209068 +/-    0.0007
Ecliptic Y           23.39985601 +/-    0.0007
Ecliptic Z          -20.59562758 +/-    0.0006
Ecliptic XDOT        -0.00216529 +/-    0.0000
Ecliptic YDOT         0.00207759 +/-    0.0000
Ecliptic ZDOT        -0.00106316 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.83562274 +/-    0.0007
Geocenter to KBO     39.24925849 +/-    0.0012
# Hcoef:  7.53

The following table shows the complete astrometric record for 14SR373. 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 (14SR373) followed by the observatory code and reference code for the source of the astrometry.

2014 09  20.34510  03 25 12.184  -14 06 33.73  24.0g 14SR373   W84  C~4yUX      
2014 09  20.34510  03 25 12.19   -14 06 33.6   24.2g 14SR373   W84  C~3cnr      
2014 11  03.34093  03 22 25.877  -14 37 40.34  22.9i 14SR373   W84  C~4yUX      
2014 11  16.30571  03 21 21.901  -14 42 49.80  23.3r 14SR373   W84  C~4yUX      
2014 11  16.30571  03 21 21.90   -14 42 49.8   23.4r 14SR373   W84  C~3cnr      
2014 11  21.25375  03 20 57.345  -14 44 09.62  24.6g 14SR373   W84  C~4yUX      
2014 11  21.25513  03 20 57.35   -14 44 09.4   23.5r 14SR373   W84  C~3cnr      
2015 11  08.31552  03 29 00.350  -14 40 40.30  23.2r 14SR373   W84  C~4yUX      
2016 01  13.14918  03 24 30.924  -14 36 24.38  22.8i 14SR373   W84  C~4yUX      
2016 11  05.33619  03 36 04.763  -14 39 46.30  23.7r 14SR373   W84  C~4yUX      
2016 11  05.33619  03 36 04.76   -14 39 46.3   23.8r 14SR373   W84  C~3cnr      
2016 11  05.33755  03 36 04.771  -14 39 46.17  23.3i 14SR373   W84  C~4yUX      
2016 11  05.33755  03 36 04.77   -14 39 46.1   23.4i 14SR373   W84  C~3cnr      
2016 11  05.33894  03 36 04.757  -14 39 46.41  24.6g 14SR373   W84  C~4yUX      
2016 12  05.24291  03 33 38.135  -14 47 16.95  23.7r 14SR373   W84  C~4yUX      
2016 12  05.24291  03 33 38.13   -14 47 16.9   23.6r 14SR373   W84  C~3cnr      
2016 12  05.24429  03 33 38.150  -14 47 17.02  24.4g 14SR373   W84  C~4yUX      
2017 12  10.19924  03 40 05.619  -14 46 49.70  23.4r 14SR373   W84  C~4yUX      
2018 01  08.14510  03 38 16.756  -14 39 10.07  24.0r 14SR373   W84  C~4yUX      
2018 11  07.27862  03 49 32.921  -14 38 22.84  23.5r 14SR373   W84  C~4yUX      
2018 11  07.27999  03 49 32.924  -14 38 22.76  24.2g 14SR373   W84  C~4yUX      
2018 11  18.15546  03 48 39.756  -14 42 35.44  22.3z 14SR373   W84  C~4yUX      

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    -0.05       0.00     0.14
     2   0.0000      0.12     0.07       0.10     0.24
     3   0.1205  -2855.07    -0.14   -1083.49    -0.12
     4   0.1559  -3833.52    -0.10   -1111.78    -0.04
     5   0.1559  -3833.51    -0.09   -1111.78    -0.04
     6   0.1695  -4197.79    -0.00   -1085.65    -0.22
     7   0.1695  -4197.65     0.23   -1085.46    -0.04
     8   1.1334   2566.80     0.05   -2931.40     0.05
     9   1.3136  -1096.02     0.12   -1537.81     0.05
    10   2.1273   8464.48    -0.15   -4728.84     0.01
    11   2.1273   8464.52    -0.11   -4728.85    -0.01
    12   2.1273   8464.68     0.15   -4728.69     0.16
    13   2.1273   8464.68     0.14   -4728.76     0.09
    14   2.1273   8464.41    -0.02   -4728.93    -0.07
    15   2.2092   6297.19    -0.08   -4514.55    -0.01
    16   2.2092   6297.14    -0.14   -4514.48     0.06
    17   2.2092   6297.38     0.19   -4514.68    -0.17
    18   3.2221  11672.10    -0.16   -6204.44    -0.04
    19   3.3013  10304.68    -0.04   -5279.60    -0.16
    20   4.1312  19703.85    -0.09   -8314.38     0.06
    21   4.1312  19703.92     0.08   -8314.32     0.13
    22   4.1610  18884.33     0.12   -8307.95    -0.07

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.

14SR373    quality flag:3

Type:          3:1EE     3:1EE     3:1EE

axisobj        63.410    63.450    63.370
ecceobj         0.392     0.393     0.392
incobj         35.533    35.533    35.533
qmin           34.027    34.292    33.366
qmax           92.716    92.349    93.349
amean          62.630    62.630    62.630
amin           61.907    61.918    61.784
amax           63.694    63.614    63.782
emean           0.408     0.403     0.416
emin            0.368     0.367     0.365
emax            0.456     0.452     0.467
imean          33.806    34.014    33.417
imin           31.965    32.229    31.410
imax           35.394    35.381    35.422
excite_mean     0.691     0.690     0.691
fracstop        1.000     1.000     1.000
cjmean          2.667     2.667     2.667

libcent 0        70.8      69.4      72.8
libamp  0        24.5      18.6      31.3
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       112.4     102.9     133.1
kozaiamp         97.4     106.9      82.3