Orbit Fit and Astrometric record for 14RM74

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: 14RM74    
# Created Fri Dec  3 02:12:35 2021
# Orbit generated from Bernstein formalism
# Fitting     34 observations of     34
# Arc:   4.25y
# First observation: 2014/09/04
#  Last observation: 2018/12/03
Preliminary a, adot, b, bdot, g, gdot:
   0.000104   0.024802   0.000077  -0.002888   0.023151   0.000000
# Chi-squared of fit:    13.38 DOF:     62 RMS:  0.11
# Min/Max residuals:    -0.26    0.21
# Exact a, adot, b, bdot, g, gdot:
  1.600063E-05  2.432978E-02 -2.252769E-06 -2.811567E-03  2.261750E-02 -2.418484E-03
# Covariance matrix:
  1.5861E-13  1.1569E-14  3.2240E-14 -2.6121E-15  1.4443E-13  8.7748E-14
  1.1569E-14  2.3688E-13  5.4193E-14 -4.1069E-14  2.0677E-13  2.6392E-12
  3.2240E-14  5.4193E-14  9.9950E-14 -3.7276E-14  8.4819E-14  5.4026E-13
 -2.6121E-15 -4.1069E-14 -3.7276E-14  2.9990E-14 -3.2041E-14 -5.3229E-13
  1.4443E-13  2.0677E-13  8.4819E-14 -3.2041E-14  3.5527E-13  1.9407E-12
  8.7748E-14  2.6392E-12  5.4026E-13 -5.3229E-13  1.9407E-12  3.4658E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -32.018437   47.155104    0.920863   -0.221310   -0.354201  2456904.895908
# Heliocentric elements and errors
Epoch:              2456900.5000  =  2014/08/31
Mean Anomaly:          347.91483 +/-     0.020
Argument of Peri:      285.03863 +/-     0.047
Long of Asc Node:      149.58877 +/-     0.001
Inclination:            32.48452 +/-     0.000
Eccentricity:         0.35693098 +/-    0.0002
Semi-Major Axis:     67.36640999 +/-    0.0125
Time of Perihelion: 2463680.2516 +/-      10.9
Perihelion:          43.32125123 +/-    0.0133
Aphelion:            91.41156875 +/-    0.0200
Period (y)              552.9340 +/-      0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           26.44852771 +/-    0.0007
Ecliptic Y           27.16775174 +/-    0.0007
Ecliptic Z          -23.44178250 +/-    0.0006
Ecliptic XDOT        -0.00245564 +/-    0.0000
Ecliptic YDOT         0.00168401 +/-    0.0000
Ecliptic ZDOT        -0.00013323 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.57721974 +/-    0.0007
Geocenter to KBO     44.21354206 +/-    0.0012
# Hcoef:  6.89

The following table shows the complete astrometric record for 14RM74. 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 (14RM74) followed by the observatory code and reference code for the source of the astrometry.

2014 09  04.39513  03 34 17.450  -13 50 12.88  24.8g 14RM74    W84  C~4yUF      
2014 09  04.39804  03 34 17.448  -13 50 13.16  23.1r 14RM74    W84  C~4yUF      
2014 09  04.39804  03 34 17.45   -13 50 13.2   23.1r 14RM74    W84  C~3cnV      
2014 09  20.34370  03 33 57.459  -14 01 53.05  23.8g 14RM74    W84  C~4yUF      
2014 09  27.33351  03 33 42.162  -14 06 52.57  23.9g 14RM74    W84  C~4yUF      
2014 09  30.32338  03 33 34.505  -14 08 57.26  23.0i 14RM74    W84  C~4yUF      
2014 09  30.32338  03 33 34.50   -14 08 57.3   23.0i 14RM74    W84  C~3cnV      
2014 10  28.35571  03 31 56.005  -14 25 37.09  23.2r 14RM74    W84  C~4yUF      
2014 10  28.35571  03 31 56.00   -14 25 37.1   23.3r 14RM74    W84  C~3cnV      
2014 10  28.35709  03 31 56.01   -14 25 37.1   23.0i 14RM74    W84  C~3cnV      
2014 10  29.35824  03 31 51.787  -14 26 05.11  23.1i 14RM74    W84  C~4yUF      
2014 10  31.29172  03 31 43.578  -14 26 57.35  23.6g 14RM74    W84  C~4yUF      
2014 11  03.34516  03 31 30.368  -14 28 14.93  23.6r 14RM74    W84  C~4yUF      
2014 11  03.34516  03 31 30.37   -14 28 14.9   23.6r 14RM74    W84  C~3cnV      
2014 11  21.25928  03 30 09.968  -14 33 33.71  23.3r 14RM74    W84  C~4yUF      
2014 11  21.25928  03 30 09.97   -14 33 33.7   23.4r 14RM74    W84  C~3cnV      
2015 11  08.31969  03 36 56.747  -14 16 03.54  23.5r 14RM74    W84  C~4yUF      
2015 11  08.32245  03 36 56.719  -14 16 03.80  23.4r 14RM74    W84  C~4yUF      
2015 11  08.32245  03 36 56.72   -14 16 03.8   23.4r 14RM74    W84  C~3cnV      
2015 11  08.32382  03 36 56.717  -14 16 03.83  22.9i 14RM74    W84  C~4yUF      
2015 11  08.32519  03 36 56.714  -14 16 03.73  24.2g 14RM74    W84  C~4yUF      
2016 01  16.13187  03 32 38.51   -14 08 57.1   23.2r 14RM74    W84  C~3cnV      
2016 01  16.13324  03 32 38.515  -14 08 56.95  23.3i 14RM74    W84  C~4yUF      
2016 11  03.27391  03 43 03.650  -13 59 49.30  23.6r 14RM74    W84  C~4yUF      
2016 11  03.27527  03 43 03.663  -13 59 49.02  23.3i 14RM74    W84  C~4yUF      
2016 11  10.32002  03 42 32.488  -14 02 27.61  23.2r 14RM74    W84  C~4yUF      
2016 11  10.32002  03 42 32.49   -14 02 27.6   23.0r 14RM74    W84  C~3cnV      
2016 11  10.32140  03 42 32.452  -14 02 27.58  24.3g 14RM74    W84  C~4yUF      
2017 12  10.20199  03 46 07.605  -13 51 32.92  23.5g 14RM74    W84  C~4yUF      
2018 02  03.08956  03 43 42.811  -13 28 49.71  22.8i 14RM74    W84  C~4yUF      
2018 02  07.08011  03 43 41.768  -13 25 59.69  23.7g 14RM74    W84  C~4yUF      
2018 11  27.15793  03 52 56.334  -13 35 30.06  23.1i 14RM74    W84  C~4yUF      
2018 11  29.27886  03 52 46.597  -13 35 45.09  23.3r 14RM74    W84  C~4yUF      
2018 12  03.20297  03 52 28.752  -13 36 02.76  23.7g 14RM74    W84  C~4yUF      

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     0.21       0.00     0.06
     2   0.0000     -0.09     0.18      -0.31    -0.13
     3   0.0000     -0.11     0.16      -0.26    -0.09
     4   0.0437   -474.47    -0.02    -591.46     0.08
     5   0.0628   -771.56    -0.17    -817.27    -0.07
     6   0.0710   -913.30    -0.14    -906.11    -0.05
     7   0.0710   -913.21    -0.06    -906.10    -0.03
     8   0.1477  -2566.18    -0.09   -1470.25    -0.02
     9   0.1477  -2566.11    -0.01   -1470.26    -0.03
    10   0.1477  -2566.04     0.15   -1470.29    -0.04
    11   0.1505  -2632.75    -0.03   -1480.27     0.06
    12   0.1558  -2761.81     0.08   -1497.58     0.14
    13   0.1641  -2967.65    -0.03   -1519.21     0.20
    14   0.1641  -2967.69    -0.06   -1519.23     0.18
    15   0.2132  -4178.24    -0.06   -1504.69    -0.15
    16   0.2132  -4178.21    -0.03   -1504.69    -0.15
    17   1.1771   1791.32     0.16   -2137.64     0.11
    18   1.1771   1790.87    -0.10   -2137.78    -0.03
    19   1.1771   1790.86    -0.12   -2137.78    -0.02
    20   1.1771   1790.82    -0.06   -2137.80    -0.04
    21   1.1771   1790.81     0.02   -2137.69     0.07
    22   1.3655  -1695.69    -0.05    -680.03     0.02
    23   1.3655  -1695.58     0.08    -679.91     0.09
    24   2.1653   7188.31    -0.25   -2722.16    -0.04
    25   2.1653   7188.58     0.11   -2721.95     0.18
    26   2.1846   6707.90     0.17   -2743.48    -0.15
    27   2.1846   6707.86     0.13   -2743.49    -0.15
    28   2.1846   6707.37    -0.26   -2743.31     0.03
    29   3.2657   9900.74    -0.08   -3021.84     0.02
    30   3.4160   8271.01     0.00   -1104.20     0.06
    31   3.4269   8305.42     0.16    -936.86    -0.20
    32   4.2293  15901.72     0.03   -3856.08     0.00
    33   4.2351  15760.83    -0.03   -3828.08    -0.02
    34   4.2459  15505.59     0.02   -3767.38     0.13

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.

14RM74    quality flag:2

Type:     10:3EEEEEE10:3EEEEEE  SCATNEAR

axisobj        68.038    68.071    68.006
ecceobj         0.362     0.362     0.361
incobj         32.447    32.447    32.447
qmin           38.759    36.563    42.194
qmax           97.042    99.250    93.574
amean          67.186    67.186    67.185
amin           66.411    66.404    66.368
amax           68.211    68.214    68.207
emean           0.394     0.410     0.356
emin            0.346     0.346     0.343
emax            0.423     0.456     0.372
imean          29.586    28.729    31.267
imin           28.456    26.525    30.915
imax           31.403    31.407    31.549
excite_mean     0.632     0.632     0.629
fracstop        1.000     1.000     1.000
cjmean          2.835     2.835     2.835

libcent 0       201.7     198.4    -180.0
libamp  0        92.1      57.0    -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       295.0     319.2     173.0
kozaiamp        180.0      33.9     180.0