Orbit Fit and Astrometric record for 14UD241

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: 14UD241   
# Created Wed Dec  8 02:12:54 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     38 observations of     38
# Arc:   6.97y
# First observation: 2013/10/04
#  Last observation: 2020/09/21
# Chi-squared of fit:     9.11 DOF:     70 RMS:  0.09
# Min/Max residuals:    -0.24    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.452006E-05  2.260079E-02  2.619057E-06  4.191397E-03  2.400087E-02 -1.173805E-03
# Covariance matrix:
  4.5630E-13 -2.4031E-13  3.1224E-14 -2.9198E-14  1.3114E-13 -1.0842E-12
 -2.4031E-13  1.5987E-13 -2.5964E-14  2.3163E-14 -5.7198E-14  8.5114E-13
  3.1224E-14 -2.5964E-14  1.8600E-13 -4.9465E-14 -4.1527E-15 -1.6684E-13
 -2.9198E-14  2.3163E-14 -4.9465E-14  1.8095E-14 -1.6338E-15  1.4320E-13
  1.3114E-13 -5.7198E-14 -4.1527E-15 -1.6338E-15  2.3899E-13 -1.0494E-13
 -1.0842E-12  8.5114E-13 -1.6684E-13  1.4320E-13 -1.0494E-13  5.2144E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.932915    8.172756   -0.045099   -0.120523   -0.992047  2456569.659518
# Heliocentric elements and errors
Epoch:              2456570.5000  =  2013/10/05
Mean Anomaly:          265.83425 +/-     0.089
Argument of Peri:       67.03424 +/-     0.077
Long of Asc Node:       40.67285 +/-     0.001
Inclination:            12.48185 +/-     0.000
Eccentricity:         0.05217154 +/-    0.0001
Semi-Major Axis:     42.38266081 +/-    0.0039
Time of Perihelion: 2482932.0660 +/-      26.9
Perihelion:          40.17149219 +/-    0.0057
Aphelion:            44.59382942 +/-    0.0060
Period (y)              275.9247 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.92270944 +/-    0.0008
Ecliptic Y            6.06948508 +/-    0.0001
Ecliptic Z           -5.02919700 +/-    0.0001
Ecliptic XDOT        -0.00044712 +/-    0.0000
Ecliptic YDOT         0.00253990 +/-    0.0000
Ecliptic ZDOT         0.00049093 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.65733019 +/-    0.0008
Geocenter to KBO     41.66522235 +/-    0.0008
# Hcoef:  7.00

The following table shows the complete astrometric record for 14UD241. 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 (14UD241) followed by the observatory code and reference code for the source of the astrometry.

2013 10  04.15874  00 40 57.349  -03 07 50.30  24.1g 14UD241   W84  C~4yUy      
2013 11  23.13775  00 37 44.922  -03 22 00.54  22.2i 14UD241   W84  C~4yUy      
2014 10  28.202280 00 43 36.15   -02 32 58.4   23.4r 14UD241   W84  C~352R      
2014 10  28.20281  00 43 36.159  -02 32 58.36  23.5r 14UD241   W84  C~4yUy      
2014 11  13.12689  00 42 36.460  -02 37 03.39  23.3r 14UD241   W84  C~4yUy      
2014 11  14.08439  00 42 33.300  -02 37 14.31  22.9i 14UD241   W84  C~4yUy      
2014 11  17.053877 00 42 23.81   -02 37 44.7   22.6z 14UD241   W84  C~352R      
2014 11  17.05440  00 42 23.829  -02 37 44.72  22.9z 14UD241   W84  C~4yUy      
2014 11  21.10071  00 42 11.838  -02 38 18.91  22.6z 14UD241   W84  C~4yUy      
2015 09  04.29719  00 51 51.812  -01 26 23.37  22.7z 14UD241   W84  C~4yUy      
2015 09  04.29857  00 51 51.797  -01 26 23.15  23.3i 14UD241   W84  C~4yUy      
2015 12  05.11010  00 45 59.556  -01 55 40.00  23.1r 14UD241   W84  C~4yUy      
2016 08  26.31037  00 56 42.557  -00 38 59.03  22.9i 14UD241   W84  C~4yUy      
2016 08  26.31175  00 56 42.544  -00 38 59.06  23.0z 14UD241   W84  C~4yUy      
2016 09  01.38116  00 56 22.255  -00 41 25.63  23.3r 14UD241   W84  C~4yUy      
2016 09  01.38254  00 56 22.231  -00 41 25.79  24.0g 14UD241   W84  C~4yUy      
2016 11  05.20077  00 51 47.239  -01 07 35.39  23.4i 14UD241   W84  C~4yUy      
2016 11  05.20218  00 51 47.231  -01 07 35.40  23.6r 14UD241   W84  C~4yUy      
2016 11  08.15371  00 51 36.028  -01 08 22.38  22.8i 14UD241   W84  C~4yUy      
2017 08  28.351053 01 00 59.48   +00 04 23.9   23.4r 14UD241   W84  C~352R      
2017 08  28.35159  01 00 59.484  +00 04 23.85  23.5r 14UD241   W84  C~4yUy      
2017 08  28.352431 01 00 59.47   +00 04 24.0   22.8i 14UD241   W84  C~352R      
2017 08  28.35296  01 00 59.474  +00 04 23.98  22.8i 14UD241   W84  C~4yUy      
2017 08  28.353796 01 00 59.47   +00 04 23.9   24.4g 14UD241   W84  C~352R      
2017 08  28.35432  01 00 59.468  +00 04 23.86  24.3g 14UD241   W84  C~4yUy      
2017 09  18.254745 00 59 41.12   -00 04 23.3   23.2i 14UD241   W84  C~352R      
2017 09  18.25527  00 59 41.120  -00 04 23.31  23.2i 14UD241   W84  C~4yUy      
2017 09  18.256111 00 59 41.11   -00 04 23.5   22.9r 14UD241   W84  C~352R      
2017 09  18.25664  00 59 41.111  -00 04 23.44  22.8r 14UD241   W84  C~4yUy      
2017 09  25.24522  00 59 11.052  -00 07 29.22  24.3g 14UD241   W84  C~4yUy      
2017 09  25.246076 00 59 11.05   -00 07 29.4   22.8z 14UD241   W84  C~352R      
2017 09  25.24660  00 59 11.044  -00 07 29.46  22.6z 14UD241   W84  C~4yUy      
2018 09  09.34683  01 04 42.029  +00 43 54.17  22.9z 14UD241   W84  C~4yUy      
2018 09  14.32629  01 04 22.605  +00 41 47.14  22.7i 14UD241   W84  C~4yUy      
2018 09  14.32766  01 04 22.601  +00 41 47.20  23.6r 14UD241   W84  C~4yUy      
2018 09  14.32905  01 04 22.598  +00 41 47.28  24.2g 14UD241   W84  C~4yUy      
2020 09  21.324060 01 12 43.548  +02 07 36.51  23.1G 14UD241   G37  C~4A4z      
2020 09  21.380810 01 12 43.300  +02 07 35.01        14UD241   G37  C~4A50      

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     0.06
     2   0.1368      0.00     0.01       0.00     0.03
     3   1.0651      0.00    -0.14       0.00    -0.07
     4   1.0651      0.00     0.03       0.00    -0.02
     5   1.1087      0.00    -0.00       0.00    -0.06
     6   1.1114      0.00     0.08       0.00    -0.13
     7   1.1195      0.00    -0.24       0.00     0.08
     8   1.1195      0.00     0.07       0.00     0.06
     9   1.1306      0.00     0.15       0.00    -0.06
    10   1.9169      0.00     0.16       0.00    -0.15
    11   1.9169      0.00     0.01       0.00     0.10
    12   2.1682      0.00    -0.11       0.00     0.12
    13   2.8943      0.00     0.16       0.00    -0.08
    14   2.8943      0.00     0.03       0.00    -0.08
    15   2.9109      0.00     0.10       0.00     0.04
    16   2.9109      0.00    -0.18       0.00    -0.09
    17   3.0884      0.00     0.05       0.00     0.08
    18   3.0884      0.00     0.01       0.00     0.09
    19   3.0965      0.00    -0.05       0.00    -0.04
    20   3.8992      0.00    -0.04       0.00    -0.05
    21   3.8992      0.00     0.04       0.00    -0.08
    22   3.8992      0.00    -0.12       0.00     0.09
    23   3.8992      0.00    -0.04       0.00     0.08
    24   3.8992      0.00    -0.06       0.00     0.02
    25   3.8992      0.00    -0.06       0.00    -0.01
    26   3.9565      0.00     0.01       0.00     0.07
    27   3.9565      0.00     0.04       0.00     0.07
    28   3.9565      0.00    -0.06       0.00    -0.09
    29   3.9565      0.00    -0.01       0.00    -0.02
    30   3.9756      0.00     0.09       0.00     0.23
    31   3.9756      0.00     0.11       0.00     0.08
    32   3.9756      0.00     0.06       0.00     0.03
    33   4.9314      0.00    -0.06       0.00     0.01
    34   4.9450      0.00    -0.01       0.00    -0.14
    35   4.9450      0.00     0.01       0.00    -0.05
    36   4.9450      0.00     0.05       0.00     0.07
    37   6.9655      0.00     0.07       0.00    -0.02
    38   6.9657      0.00     0.00       0.00    -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.

14UD241    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        42.611    42.611    42.611
ecceobj         0.050     0.050     0.050
incobj         12.464    12.464    12.464
qmin           38.258    38.307    38.238
qmax           46.941    46.912    46.953
amean          42.302    42.367    42.307
amin           41.917    41.915    41.913
amax           42.774    42.777    42.779
emean           0.051     0.058     0.049
emin            0.019     0.025     0.014
emax            0.097     0.097     0.098
imean          11.544    11.516    11.544
imin           10.596    10.596    10.592
imax           12.534    12.344    12.570
excite_mean     0.207     0.208     0.207
fracstop        1.000     1.000     1.000
cjmean          3.031     3.031     3.031

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       179.3     177.4     179.0
kozaiamp        179.9     180.0     180.0