Orbit Fit and Astrometric record for 14RN74

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: 14RN74    
# Created Sat Dec  4 02:12:39 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     57 observations of     57
# Arc:   6.35y
# First observation: 2014/09/04
#  Last observation: 2021/01/11
# Chi-squared of fit:    18.73 DOF:    108 RMS:  0.10
# Min/Max residuals:    -0.30    0.53
# Exact a, adot, b, bdot, g, gdot:
  2.048663E-05  4.356249E-02  1.710587E-06  2.185727E-03  3.426336E-02 -5.867911E-03
# Covariance matrix:
  1.4540E-13 -4.3861E-14  5.6135E-15 -2.3418E-15  6.3694E-14 -1.1496E-13
 -4.3861E-14  5.5498E-14 -2.4603E-15  2.9788E-15  1.5602E-14  1.9125E-13
  5.6135E-15 -2.4603E-15  5.4629E-14 -1.5355E-14  3.2823E-15 -9.8694E-15
 -2.3418E-15  2.9788E-15 -1.5355E-14  8.1131E-15  4.3672E-16  1.1972E-14
  6.3694E-14  1.5602E-14  3.2823E-15  4.3672E-16  7.7498E-14  6.3088E-14
 -1.1496E-13  1.9125E-13 -9.8694E-15  1.1972E-14  6.3088E-14  7.6884E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
  -24.783842   32.456064    0.785314   -0.266889   -0.578381  2456904.845228
# Heliocentric elements and errors
Epoch:              2456904.5000  =  2014/09/04
Mean Anomaly:          336.38112 +/-     0.003
Argument of Peri:      317.86308 +/-     0.005
Long of Asc Node:      115.38310 +/-     0.000
Inclination:            24.35818 +/-     0.000
Eccentricity:         0.28944549 +/-    0.0000
Semi-Major Axis:     39.38492834 +/-    0.0018
Time of Perihelion: 2462827.6168 +/-       6.0
Perihelion:          27.98513862 +/-    0.0017
Aphelion:            50.78471805 +/-    0.0026
Period (y)              247.1743 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           23.31504425 +/-    0.0002
Ecliptic Y           13.90113093 +/-    0.0001
Ecliptic Z          -12.23450651 +/-    0.0001
Ecliptic XDOT        -0.00217025 +/-    0.0000
Ecliptic YDOT         0.00274362 +/-    0.0000
Ecliptic ZDOT         0.00035524 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.77451123 +/-    0.0002
Geocenter to KBO     29.18580703 +/-    0.0002
# Hcoef:  7.80

The following table shows the complete astrometric record for 14RN74. 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 (14RN74) followed by the observatory code and reference code for the source of the astrometry.

2014 09  04.34445  02 34 48.180  -10 59 57.69  22.9g 14RN74    W84  C~4yUF      
2014 09  04.34445  02 34 48.18   -10 59 57.7   23.1g 14RN74    W84  C~3cnV      
2014 09  04.34583  02 34 48.183  -10 59 57.62  22.6r 14RN74    W84  C~4yUF      
2014 09  04.34583  02 34 48.18   -10 59 57.6   22.6r 14RN74    W84  C~3cnV      
2014 09  15.32016  02 34 14.036  -11 09 42.84  22.3z 14RN74    W84  C~4yUF      
2014 10  28.31829  02 30 22.253  -11 41 20.12  22.7g 14RN74    W84  C~4yUF      
2014 10  28.31829  02 30 22.25   -11 41 20.1   22.8g 14RN74    W84  C~3cnV      
2014 10  28.31965  02 30 22.246  -11 41 20.14  22.7r 14RN74    W84  C~4yUF      
2014 10  28.31965  02 30 22.25   -11 41 20.1   22.8r 14RN74    W84  C~3cnV      
2014 12  15.16590  02 25 47.320  -11 44 57.74  22.8i 14RN74    W84  C~4yUF      
2014 12  15.16590  02 25 47.32   -11 44 57.7   22.9i 14RN74    W84  C~3cnV      
2014 12  15.16729  02 25 47.303  -11 44 57.72  23.0g 14RN74    W84  C~4yUF      
2014 12  15.16729  02 25 47.30   -11 44 57.7   23.2g 14RN74    W84  C~3cnV      
2014 12  20.17424  02 25 27.773  -11 42 53.46  23.1g 14RN74    W84  C~4yUF      
2014 12  20.17424  02 25 27.77   -11 42 53.5   23.2g 14RN74    W84  C~3cnV      
2014 12  27.11371  02 25 05.289  -11 39 16.96  21.6z 14RN74    W84  C~4yUF      
2015 01  08.12099  02 24 39.961  -11 31 09.88  22.2z 14RN74    W84  C~4yUF      
2015 01  08.12099  02 24 39.96   -11 31 09.9   22.5z 14RN74    W84  C~3cnV      
2015 01  14.09798  02 24 34.267  -11 26 19.66  22.6r 14RN74    W84  C~4yUF      
2015 01  14.09798  02 24 34.27   -11 26 19.7   22.6r 14RN74    W84  C~3cnV      
2015 11  21.17011  02 37 22.967  -10 49 56.30  21.8z 14RN74    W84  C~4yUF      
2015 11  21.17011  02 37 22.96   -10 49 56.3   22.0z 14RN74    W84  C~3cnV      
2015 12  01.21610  02 36 23.755  -10 50 09.34  22.8i 14RN74    W84  C~4yUF      
2015 12  01.21610  02 36 23.75   -10 50 09.3   23.0i 14RN74    W84  C~3cnV      
2016 01  17.09168  02 33 48.136  -10 27 05.66  23.0z 14RN74    W84  C~4yUF      
2016 09  24.30614  02 52 35.740  -09 17 48.37  22.3r 14RN74    W84  C~4yUF      
2016 09  24.30614  02 52 35.74   -09 17 48.4   22.4r 14RN74    W84  C~3cnV      
2016 09  25.27963  02 52 31.556  -09 18 37.04  23.0g 14RN74    W84  C~4yUF      
2016 09  25.27963  02 52 31.56   -09 18 37.0   23.1g 14RN74    W84  C~3cnV      
2016 10  26.31829  02 49 39.599  -09 40 46.06  21.9r 14RN74    W84  C~4yUF      
2016 10  26.31829  02 49 39.60   -09 40 46.0   22.2r 14RN74    W84  C~3cnV      
2016 10  26.31966  02 49 39.595  -09 40 45.85  22.3g 14RN74    W84  C~4yUF      
2016 10  26.31966  02 49 39.59   -09 40 45.9   22.6g 14RN74    W84  C~3cnV      
2016 10  27.23439  02 49 33.753  -09 41 15.81  21.6i 14RN74    W84  C~4yUF      
2016 10  27.23439  02 49 33.76   -09 41 15.7   21.8i 14RN74    W84  C~3cnV      
2016 10  28.21465  02 49 27.460  -09 41 46.77  22.2i 14RN74    W84  C~4yUF      
2016 10  28.21465  02 49 27.46   -09 41 46.8   22.3i 14RN74    W84  C~3cnV      
2016 10  28.21603  02 49 27.451  -09 41 46.76  22.7g 14RN74    W84  C~4yUF      
2016 10  28.21603  02 49 27.45   -09 41 46.8   23.0g 14RN74    W84  C~3cnV      
2016 11  03.21230  02 48 48.495  -09 44 38.12  22.3i 14RN74    W84  C~4yUF      
2016 11  03.21230  02 48 48.49   -09 44 38.1   22.4i 14RN74    W84  C~3cnV      
2016 11  04.21319  02 48 41.937  -09 45 03.56  22.5r 14RN74    W84  C~4yUF      
2016 11  04.21319  02 48 41.93   -09 45 03.5   22.6r 14RN74    W84  C~3cnV      
2016 12  02.13300  02 45 46.462  -09 50 00.45  22.6i 14RN74    W84  C~4yUF      
2016 12  02.13300  02 45 46.46   -09 50 00.4   22.7i 14RN74    W84  C~3cnV      
2016 12  02.14129  02 45 46.416  -09 50 00.36  22.6r 14RN74    W84  C~4yUF      
2016 12  02.14129  02 45 46.42   -09 50 00.3   22.7r 14RN74    W84  C~3cnV      
2016 12  02.14268  02 45 46.411  -09 50 00.46  23.1g 14RN74    W84  C~4yUF      
2016 12  02.14268  02 45 46.41   -09 50 00.4   23.2g 14RN74    W84  C~3cnV      
2016 12  30.05631  02 43 41.211  -09 40 43.11  22.2z 14RN74    W84  C~4yUF      
2016 12  30.05631  02 43 41.21   -09 40 43.1   22.7z 14RN74    W84  C~3cnV      
2020 09  14.57216  03 31 44.356  -04 51 10.91  22.3w 14RN74    F51  C~48E6      
2020 09  14.59483  03 31 44.302  -04 51 11.80  22.4w 14RN74    F51  C~48E6      
2020 09  14.60617  03 31 44.285  -04 51 12.09  22.6w 14RN74    F51  C~48E6      
2021 01  11.129600 03 21 23.172  -05 19 52.38  22.6G 14RN74    G37  C~4UDj      
2021 01  11.194470 03 21 22.975  -05 19 49.77        14RN74    G37  C~4UDj      
2021 01  11.245950 03 21 22.834  -05 19 47.77        14RN74    G37  C~4UDj      

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    -0.03       0.00    -0.16
     2   0.0000      0.00    -0.03       0.00    -0.17
     3   0.0000      0.00     0.03       0.00     0.00
     4   0.0000      0.00     0.07       0.00    -0.02
     5   0.0300      0.00     0.05       0.00     0.13
     6   0.1478      0.00    -0.02       0.00     0.03
     7   0.1478      0.00     0.02       0.00     0.01
     8   0.1478      0.00     0.11       0.00     0.07
     9   0.1478      0.00     0.05       0.00     0.03
    10   0.2788      0.00     0.03       0.00     0.15
    11   0.2788      0.00     0.03       0.00     0.11
    12   0.2788      0.00    -0.18       0.00     0.12
    13   0.2788      0.00    -0.14       0.00     0.10
    14   0.2925      0.00    -0.01       0.00    -0.01
    15   0.2925      0.00     0.03       0.00     0.03
    16   0.3115      0.00     0.53       0.00    -0.02
    17   0.3444      0.00    -0.30       0.00     0.03
    18   0.3444      0.00    -0.29       0.00     0.05
    19   0.3607      0.00     0.08       0.00    -0.06
    20   0.3607      0.00     0.04       0.00    -0.02
    21   1.2124      0.00    -0.01       0.00    -0.08
    22   1.2124      0.00     0.09       0.00    -0.08
    23   1.2399      0.00    -0.12       0.00    -0.02
    24   1.2399      0.00    -0.05       0.00    -0.06
    25   1.3682      0.00    -0.04       0.00     0.02
    26   2.0560      0.00     0.05       0.00    -0.10
    27   2.0560      0.00     0.05       0.00    -0.07
    28   2.0587      0.00     0.04       0.00     0.08
    29   2.0587      0.00    -0.02       0.00     0.04
    30   2.1437      0.00    -0.05       0.00     0.00
    31   2.1437      0.00    -0.06       0.00    -0.06
    32   2.1437      0.00    -0.07       0.00     0.15
    33   2.1437      0.00     0.01       0.00     0.20
    34   2.1462      0.00     0.15       0.00     0.00
    35   2.1462      0.00     0.04       0.00    -0.11
    36   2.1489      0.00     0.09       0.00    -0.09
    37   2.1489      0.00     0.09       0.00    -0.06
    38   2.1489      0.00     0.08       0.00    -0.05
    39   2.1489      0.00     0.09       0.00    -0.01
    40   2.1653      0.00     0.01       0.00     0.05
    41   2.1653      0.00     0.09       0.00     0.03
    42   2.1680      0.00    -0.16       0.00     0.08
    43   2.1680      0.00    -0.05       0.00     0.02
    44   2.2445      0.00    -0.07       0.00     0.03
    45   2.2445      0.00    -0.04       0.00    -0.02
    46   2.2445      0.00     0.05       0.00     0.09
    47   2.2445      0.00    -0.01       0.00     0.03
    48   2.2445      0.00     0.02       0.00    -0.02
    49   2.2445      0.00     0.03       0.00    -0.08
    50   2.3209      0.00    -0.04       0.00    -0.07
    51   2.3209      0.00    -0.03       0.00    -0.08
    52   6.0294      0.00    -0.11       0.00    -0.14
    53   6.0294      0.00    -0.14       0.00     0.03
    54   6.0295      0.00    -0.01       0.00     0.27
    55   6.3540      0.00     0.14       0.00    -0.09
    56   6.3541      0.00     0.01       0.00    -0.00
    57   6.3543      0.00     0.11       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.

14RN74    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.698    39.698    39.698
ecceobj         0.292     0.292     0.292
incobj         24.361    24.361    24.361
qmin           26.918    26.914    26.923
qmax           52.485    52.531    52.482
amean          39.453    39.453    39.453
amin           39.005    39.008    39.013
amax           39.961    39.961    39.969
emean           0.254     0.254     0.254
emin            0.188     0.188     0.188
emax            0.316     0.316     0.316
imean          24.062    24.061    24.062
imin           21.680    21.676    21.684
imax           26.128    26.129    26.111
excite_mean     0.482     0.482     0.482
fracstop        1.000     1.000     1.000
cjmean          2.782     2.782     2.782

libcent 0       180.0     179.8     180.3
libamp  0        80.1      80.1      79.9
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       272.1     272.1     272.1
kozaiamp         52.3      52.3      52.3