Orbit Fit and Astrometric record for 14RJ70

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: 14RJ70    
# Created Tue Jan 21 02:10:11 2025
# Orbit generated from Bernstein formalism
# Fitting     25 observations of     25
# Arc:   4.16y
# First observation: 2014/09/12
#  Last observation: 2018/11/08
Preliminary a, adot, b, bdot, g, gdot:
   0.000171   0.029488  -0.000074   0.000436   0.027190   0.000000
# Chi-squared of fit:    17.11 DOF:     44 RMS:  0.15
# Min/Max residuals:    -0.36    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.756917E-05  2.972177E-02  6.245930E-07  4.666306E-04  2.674648E-02 -7.275099E-04
# Covariance matrix:
  1.9804E-13 -9.7480E-14 -4.0360E-14 -1.7931E-14  4.0250E-13 -7.1321E-13
 -9.7480E-14  3.4462E-13 -1.8540E-14  2.3199E-14  1.0574E-13  3.2914E-12
 -4.0360E-14 -1.8540E-14  1.6353E-13 -3.4606E-14 -3.1773E-13 -7.6919E-14
 -1.7931E-14  2.3199E-14 -3.4606E-14  3.1904E-14 -9.2538E-14  2.7735E-13
  4.0250E-13  1.0574E-13 -3.1773E-13 -9.2538E-14  3.0462E-12 -1.7329E-14
 -7.1321E-13  3.2914E-12 -7.6919E-14  2.7735E-13 -1.7329E-14  3.4505E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -26.923765  -57.071070   -0.726417   -0.317065   -0.624611  2456912.561418
# Heliocentric elements and errors
Epoch:              2456910.5000  =  2014/09/10
Mean Anomaly:          358.76446 +/-     0.049
Argument of Peri:      274.77028 +/-     0.073
Long of Asc Node:       30.85504 +/-     0.001
Inclination:            26.47995 +/-     0.000
Eccentricity:         0.18529130 +/-    0.0002
Semi-Major Axis:     46.66172575 +/-    0.0161
Time of Perihelion: 2457310.0722 +/-      15.9
Perihelion:          38.01571370 +/-    0.0169
Aphelion:            55.30773779 +/-    0.0218
Period (y)              318.7494 +/-      0.16
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.10986809 +/-    0.0012
Ecliptic Y          -28.17140148 +/-    0.0018
Ecliptic Z          -16.92948482 +/-    0.0011
Ecliptic XDOT         0.00252456 +/-    0.0000
Ecliptic YDOT         0.00168694 +/-    0.0000
Ecliptic ZDOT         0.00007642 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.01871087 +/-    0.0016
Geocenter to KBO     37.38810042 +/-    0.0024
# Hcoef:  6.98

The following table shows the complete astrometric record for 14RJ70. 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 (14RJ70) followed by the observatory code and reference code for the source of the astrometry.

2014 09  12.06064  20 54 57.305  -45 29 22.80  22.5i 14RJ70    W84  C~4yUF      
2014 09  12.06203  20 54 57.284  -45 29 22.89  24.2g 14RJ70    W84  C~4yUF      
2014 09  12.06341  20 54 57.281  -45 29 22.68  23.0r 14RJ70    W84  C~4yUF      
2014 09  24.04327  20 54 01.951  -45 25 20.63  23.6g 14RJ70    W84  C~4yUF      
2014 09  26.005984 20 53 54.41   -45 24 29.7   22.6i 14RJ70    W84  C~352Q      
2014 09  27.042049 20 53 50.59   -45 24 01.7   23.0r 14RJ70    W84  C~352Q      
2014 09  27.04258  20 53 50.594  -45 24 01.97  23.4r 14RJ70    W84  C~4yUF      
2014 10  13.03244  20 53 09.296  -45 15 13.74  23.0r 14RJ70    W84  C~4yUF      
2014 10  22.03422  20 53 01.373  -45 09 05.22  21.6z 14RJ70    W84  C~4yUF      
2014 10  23.047546 20 53 01.25   -45 08 20.8   22.1z 14RJ70    W84  C~352Q      
2014 10  23.04807  20 53 01.248  -45 08 20.83  22.1z 14RJ70    W84  C~4yUF      
2016 09  23.01421  21 12 00.554  -44 14 51.55  22.7r 14RJ70    W84  C~4yUF      
2016 09  23.01557  21 12 00.538  -44 14 51.43  23.6g 14RJ70    W84  C~4yUF      
2016 10  02.05056  21 11 25.001  -44 11 10.80  22.7r 14RJ70    W84  C~4yUF      
2016 10  02.05193  21 11 24.993  -44 11 10.80  22.6i 14RJ70    W84  C~4yUF      
2016 10  02.05332  21 11 24.993  -44 11 10.78  23.5g 14RJ70    W84  C~4yUF      
2017 09  08.10623  21 22 02.969  -43 38 36.54  22.2z 14RJ70    W84  C~4yUF      
2017 09  28.04775  21 20 22.120  -43 33 54.84  22.7z 14RJ70    W84  C~4yUF      
2017 10  10.09138  21 19 40.983  -43 28 22.75  23.8g 14RJ70    W84  C~4yUF      
2017 10  13.063565 21 19 33.57   -43 26 44.1   22.4i 14RJ70    W84  C~352Q      
2017 10  13.064942 21 19 33.55   -43 26 43.8   22.9g 14RJ70    W84  C~352Q      
2017 10  13.06547  21 19 33.584  -43 26 43.83  22.6g 14RJ70    W84  C~4yUF      
2017 10  22.01417  21 19 18.060  -43 21 08.67  22.8z 14RJ70    W84  C~4yUF      
2018 10  28.12336  21 27 37.278  -42 36 14.01  22.5i 14RJ70    W84  C~4yUF      
2018 11  08.11080  21 27 38.639  -42 27 50.70  24.3g 14RJ70    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     0.00       0.00    -0.07
     2   0.0000     -0.24    -0.17      -0.02    -0.13
     3   0.0000     -0.20    -0.07       0.19     0.03
     4   0.0328   -479.92     0.02     409.32    -0.03
     5   0.0382   -539.97     0.20     482.08     0.18
     6   0.0410   -569.73     0.09     521.02     0.29
     7   0.0410   -569.77     0.06     520.75    -0.00
     8   0.0848   -824.02    -0.10    1156.43    -0.08
     9   0.1094   -792.19    -0.28    1533.02    -0.09
    10   0.1122   -779.98     0.17    1575.75    -0.06
    11   0.1122   -780.01     0.14    1575.73    -0.11
    12   2.0314  11757.23    -0.02     588.35    -0.05
    13   2.0314  11757.11    -0.09     588.53     0.07
    14   2.0561  11478.19    -0.08     931.55     0.07
    15   2.0561  11478.11    -0.13     931.58     0.05
    16   2.0561  11478.11    -0.09     931.60     0.01
    17   2.9899  18642.85     0.36     184.93    -0.02
    18   3.0445  17732.55     0.04     868.08    -0.03
    19   3.0774  17443.10    -0.21    1347.11     0.29
    20   3.0856  17405.60     0.07    1469.43    -0.17
    21   3.0856  17405.51    -0.00    1469.79     0.13
    22   3.0856  17405.85     0.34    1469.62    -0.06
    23   3.1101  17376.09    -0.04    1845.23    -0.16
    24   4.1261  23532.22     0.16    2195.95     0.04
    25   4.1562  23751.05    -0.36    2654.15    -0.10

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.

14RJ70    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        46.804    46.853    46.756
ecceobj         0.189     0.189     0.188
incobj         26.505    26.506    26.505
qmin           37.548    37.536    37.570
qmax           56.732    56.837    56.654
amean          46.920    46.968    46.872
amin           46.519    46.569    46.482
amax           47.386    47.435    47.339
emean           0.182     0.182     0.181
emin            0.166     0.167     0.166
emax            0.198     0.199     0.197
imean          26.160    26.163    26.158
imin           25.775    25.776    25.776
imax           26.541    26.535    26.529
excite_mean     0.477     0.477     0.477
fracstop        1.000     1.000     1.000
cjmean          2.846     2.846     2.846

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       184.9     184.7     184.9
kozaiamp        179.9     180.0     180.0