Orbit Fit and Astrometric record for 19RJ2

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: 19RJ2     
# Created Mon Dec  6 02:14:03 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     94 observations of     94
# Arc:   2.31y
# First observation: 2018/08/11
#  Last observation: 2020/12/01
# Chi-squared of fit:   182.89 DOF:    182 RMS:  0.25
# Min/Max residuals:    -0.88    1.16
# Exact a, adot, b, bdot, g, gdot:
  4.537349E-05  6.367446E-01  1.971989E-05  2.766139E-01  2.228427E-01 -1.814550E-01
# Covariance matrix:
  4.3675E-09 -7.7775E-06  1.5246E-09 -2.6605E-06 -2.6558E-11 -3.5970E-06
 -7.7775E-06  1.3954E-02 -2.7153E-06  4.7637E-03  4.7259E-08  6.4440E-03
  1.5246E-09 -2.7153E-06  5.3301E-10 -9.2963E-07 -9.2724E-12 -1.2559E-06
 -2.6605E-06  4.7637E-03 -9.2963E-07  1.6593E-03  1.6168E-08  2.2045E-03
 -2.6558E-11  4.7259E-08 -9.2724E-12  1.6168E-08  1.6154E-13  2.1857E-08
 -3.5970E-06  6.4440E-03 -1.2559E-06  2.2045E-03  2.1857E-08  2.9823E-03
#      lat0       lon0       xBary       yBary       zBary        JD0
    4.253236  -55.867192   -0.254771    0.072453   -0.973768  2458341.915071
# Heliocentric elements and errors
Epoch:              2458341.5000  =  2018/08/11
Mean Anomaly:          347.19752 +/-     0.000
Argument of Peri:       48.21732 +/-     0.000
Long of Asc Node:      298.55636 +/-     0.000
Inclination:            23.11967 +/-     0.000
Eccentricity:         0.47927398 +/-    0.0000
Semi-Major Axis:      9.74023575 +/-    0.0000
Time of Perihelion: 2458736.3610 +/-       0.0
Perihelion:           5.07199421 +/-    0.0000
Aphelion:            14.40847729 +/-    0.0000
Period (y)               30.3992 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            3.26966818 +/-    0.0000
Ecliptic Y           -4.37646837 +/-    0.0000
Ecliptic Z            0.33295126 +/-    0.0000
Ecliptic XDOT         0.00509393 +/-    0.0000
Ecliptic YDOT         0.00643528 +/-    0.0000
Ecliptic ZDOT         0.00322360 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    5.47316966 +/-    0.0000
Geocenter to KBO      4.48756336 +/-    0.0000
# Hcoef: 13.70

The following table shows the complete astrometric record for 19RJ2. 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 (19RJ2) followed by the observatory code and reference code for the source of the astrometry.

2018 08  11.41427  20 21 40.479  -15 05 17.18  21.1w 19RJ2     F51  C~46xj      
2018 08  11.42599  20 21 40.135  -15 05 16.56  21.1w 19RJ2     F51  C~46xj      
2018 08  11.43770  20 21 39.783  -15 05 15.94  21.0w 19RJ2     F51  C~46xj      
2019 08  12.58931  22 41 01.184  +12 58 56.89  20.7w 19RJ2     F51  C~3Crd      
2019 08  12.59862  22 41 00.944  +12 58 57.92  20.7w 19RJ2     F51  C~3Crd      
2019 08  12.60792  22 41 00.693  +12 58 58.76  20.7w 19RJ2     F51  C~3Crd      
2019 08  12.61724  22 41 00.447  +12 58 59.86  20.7w 19RJ2     F51  C~3Crd      
2019 08  22.52768  22 36 29.932  +13 11 04.56  20.3i 19RJ2     F51  C~59vA      
2019 08  22.53924  22 36 29.581  +13 11 05.15  20.4i 19RJ2     F51  C~59vA      
2019 08  22.55077  22 36 29.244  +13 11 05.61  20.4i 19RJ2     F51  C~59vA      
2019 08  22.56234  22 36 28.914  +13 11 06.07  20.2i 19RJ2     F51  C~59vA      
2019 09  03.36773  22 30 43.64   +13 12 28.4   20.6G 19RJ2     G96  C~3Crd      
2019 09  03.37498  22 30 43.41   +13 12 28.3   20.3G 19RJ2     G96  C~3Crd      
2019 09  03.39934  22 30 42.67   +13 12 27.6         19RJ2     G96  C~3Crd      
2019 09  03.46310  22 30 40.75   +13 12 25.7   20.7G 19RJ2     I52  C~3Crd      
2019 09  03.47118  22 30 40.54   +13 12 25.8   20.7G 19RJ2     I52  C~3Crd      
2019 09  03.47828  22 30 40.35   +13 12 25.6   20.6G 19RJ2     I52  C~3Crd      
2019 09  04.22559  22 30 18.60   +13 12 03.0   21.9G 19RJ2     I52  C~3Crd      
2019 09  04.23222  22 30 18.36   +13 12 02.8   20.6G 19RJ2     I52  C~3Crd      
2019 09  04.23884  22 30 18.10   +13 12 02.8   20.8G 19RJ2     I52  C~3Crd      
2019 09  04.24665  22 30 17.90   +13 12 02.7   21.6G 19RJ2     I52  C~3Crd      
2019 09  05.32526  22 29 46.28   +13 11 25.9   20.8G 19RJ2     I52  C~3Crd      
2019 09  05.33495  22 29 46.00   +13 11 25.7   20.6G 19RJ2     I52  C~3Crd      
2019 09  05.34480  22 29 45.68   +13 11 26.2   20.0G 19RJ2     I52  C~3Crd      
2019 09  05.35288  22 29 45.47   +13 11 25.2   19.6G 19RJ2     I52  C~3Crd      
2019 09  06.27374  22 29 18.76   +13 10 48.1   20.5G 19RJ2     I52  C~3Crd      
2019 09  06.28037  22 29 18.48   +13 10 48.4   20.6G 19RJ2     I52  C~3Crd      
2019 09  06.28785  22 29 18.24   +13 10 48.0   20.5G 19RJ2     I52  C~3Crd      
2019 09  06.901977 22 29 00.43   +13 10 21.3   21.5G 19RJ2     L01  C~3Crd      
2019 09  06.905125 22 29 00.38   +13 10 21.8   21.4G 19RJ2     L01  C~3Crd      
2019 09  06.909830 22 29 00.26   +13 10 21.6   21.2G 19RJ2     L01  C~3Crd      
2019 09  30.16535  22 19 06.69   +12 34 47.0   20.6G 19RJ2     G96  C~3LV9      
2019 09  30.17100  22 19 06.57   +12 34 46.1   20.9G 19RJ2     G96  C~3LV9      
2019 09  30.17665  22 19 06.44   +12 34 45.3   20.8G 19RJ2     G96  C~3LV9      
2019 09  30.18229  22 19 06.32   +12 34 44.6   20.9G 19RJ2     G96  C~3LV9      
2020 09  03.51854  01 12 55.743  +36 20 03.99  20.7z 19RJ2     F51  C~46xj      
2020 09  03.52933  01 12 55.526  +36 20 05.42  20.8z 19RJ2     F51  C~46xj      
2020 09  03.54011  01 12 55.306  +36 20 07.43  20.9z 19RJ2     F51  C~46xj      
2020 09  04.51939  01 12 38.363  +36 22 43.39  20.7i 19RJ2     F51  C~46xj      
2020 09  04.53164  01 12 38.106  +36 22 44.85  20.9i 19RJ2     F51  C~46xj      
2020 09  04.54202  01 12 37.933  +36 22 46.84  20.8i 19RJ2     F51  C~46xj      
2020 09  04.55963  01 12 37.603  +36 22 49.44  20.8i 19RJ2     F51  C~46xj      
2020 09  04.57078  01 12 37.391  +36 22 51.22  20.9i 19RJ2     F51  C~46xj      
2020 09  04.59346  01 12 36.975  +36 22 54.50  20.8i 19RJ2     F51  C~46xj      
2020 09  10.49195  01 10 41.232  +36 36 07.44  20.8i 19RJ2     F51  C~48PS      
2020 09  10.50448  01 10 40.959  +36 36 08.69  20.9i 19RJ2     F51  C~48PS      
2020 09  10.51860  01 10 40.650  +36 36 10.57  20.9i 19RJ2     F51  C~48PS      
2020 09  11.54649  01 10 18.236  +36 38 02.55  20.7i 19RJ2     F51  C~48PS      
2020 09  11.55780  01 10 17.954  +36 38 03.73  20.9i 19RJ2     F51  C~48PS      
2020 09  19.45151  01 07 06.964  +36 47 58.20  20.8w 19RJ2     F51  C~48PS      
2020 09  19.46367  01 07 06.639  +36 47 58.90  21.0w 19RJ2     F51  C~48PS      
2020 09  19.47589  01 07 06.305  +36 47 59.53  21.0w 19RJ2     F51  C~48PS      
2020 09  19.48809  01 07 05.964  +36 47 59.94  20.9w 19RJ2     F51  C~48PS      
2020 09  28.46695  01 02 56.323  +36 49 24.82  20.5i 19RJ2     F51  C~4Ae6      
2020 09  28.47935  01 02 55.957  +36 49 24.49  20.7i 19RJ2     F51  C~4Ae6      
2020 09  28.49137  01 02 55.588  +36 49 24.32  20.6i 19RJ2     F51  C~4Ae6      
2020 10  01.43355  01 01 28.894  +36 47 34.93  20.9z 19RJ2     F51  C~4Ae6      
2020 10  01.44428  01 01 28.570  +36 47 34.58  20.6z 19RJ2     F51  C~4Ae6      
2020 10  01.45595  01 01 28.227  +36 47 33.75  20.7z 19RJ2     F51  C~4Ae6      
2020 10  07.33909  00 58 31.011  +36 40 36.86  21.0i 19RJ2     F51  C~4Ae6      
2020 10  07.34825  00 58 30.767  +36 40 36.15  20.7i 19RJ2     F51  C~4Ae6      
2020 10  07.35743  00 58 30.441  +36 40 35.00  20.9i 19RJ2     F51  C~4Ae6      
2020 10  07.36663  00 58 30.185  +36 40 34.23  20.9i 19RJ2     F51  C~4Ae6      
2020 10  08.41630  00 57 58.245  +36 38 52.41  20.9i 19RJ2     F51  C~4Ae6      
2020 10  08.42969  00 57 57.813  +36 38 51.14  20.7i 19RJ2     F51  C~4Ae6      
2020 10  08.44476  00 57 57.359  +36 38 49.84  20.5i 19RJ2     F51  C~4Ae6      
2020 10  08.45714  00 57 56.961  +36 38 48.26  20.6i 19RJ2     F51  C~4Ae6      
2020 10  10.46753  00 56 55.897  +36 35 10.39  20.6i 19RJ2     F51  C~4Ae6      
2020 10  10.47596  00 56 55.650  +36 35 09.38  20.8i 19RJ2     F51  C~4Ae6      
2020 10  10.48438  00 56 55.384  +36 35 08.65  20.5i 19RJ2     F51  C~4Ae6      
2020 10  10.49279  00 56 55.106  +36 35 07.59  20.6i 19RJ2     F51  C~4Ae6      
2020 10  11.242167 00 56 32.53   +36 33 38.3   20.8G 19RJ2     G96  C~4Ae6      
2020 10  11.247436 00 56 32.36   +36 33 37.6   21.3G 19RJ2     G96  C~4Ae6      
2020 10  11.252696 00 56 32.17   +36 33 37.2   20.9G 19RJ2     G96  C~4Ae6      
2020 10  11.257950 00 56 32.05   +36 33 36.3   21.0G 19RJ2     G96  C~4Ae6      
2020 10  11.49387  00 56 24.787  +36 33 08.25  20.6i 19RJ2     F51  C~4Ae6      
2020 10  11.51218  00 56 24.204  +36 33 05.68  20.4i 19RJ2     F51  C~4Ae6      
2020 10  22.236080 00 51 09.21   +36 04 47.5   20.8G 19RJ2     G96  C~4JQa      
2020 10  22.241341 00 51 09.06   +36 04 46.5   21.0G 19RJ2     G96  C~4JQa      
2020 10  22.246621 00 51 08.89   +36 04 45.3   20.8G 19RJ2     G96  C~4JQa      
2020 10  22.251887 00 51 08.75   +36 04 44.4   21.0G 19RJ2     G96  C~4JQa      
2020 10  24.36389  00 50 10.381  +35 57 49.14  20.9i 19RJ2     F51  C~4JQa      
2020 10  24.37258  00 50 10.143  +35 57 47.21  20.8i 19RJ2     F51  C~4JQa      
2020 10  24.38118  00 50 09.901  +35 57 45.39  20.9i 19RJ2     F51  C~4JQa      
2020 11  03.38711  00 45 59.957  +35 20 08.87  20.7i 19RJ2     F51  C~4L3k      
2020 11  03.40653  00 45 59.474  +35 20 03.95  21.0i 19RJ2     F51  C~4L3k      
2020 11  03.41625  00 45 59.264  +35 20 01.54  20.9i 19RJ2     F51  C~4L3k      
2020 11  04.37612  00 45 38.087  +35 16 04.42  21.2i 19RJ2     F51  C~4L3k      
2020 11  04.38522  00 45 37.861  +35 16 02.14  21.1i 19RJ2     F51  C~4L3k      
2020 11  04.39431  00 45 37.653  +35 15 59.96  21.0i 19RJ2     F51  C~4L3k      
2020 11  04.40339  00 45 37.437  +35 15 57.47  20.5i 19RJ2     F51  C~4L3k      
2020 12  01.33135  00 40 02.112  +33 15 36.62  21.3z 19RJ2     F51  C~4OJt      
2020 12  01.34354  00 40 02.078  +33 15 33.47  21.0z 19RJ2     F51  C~4OJt      
2020 12  01.35572  00 40 02.032  +33 15 30.32  21.0z 19RJ2     F51  C~4OJt      

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    -0.04       0.00    -0.03
     2   0.0000      0.00    -0.00       0.00     0.04
     3   0.0001      0.00    -0.09       0.00     0.11
     4   1.0025      0.00     0.02       0.00    -0.08
     5   1.0026      0.00     0.11       0.00    -0.01
     6   1.0026      0.00     0.02       0.00    -0.12
     7   1.0026      0.00     0.01       0.00     0.03
     8   1.0297      0.00     0.06       0.00    -0.10
     9   1.0298      0.00    -0.12       0.00     0.01
    10   1.0298      0.00    -0.10       0.00     0.00
    11   1.0298      0.00     0.03       0.00    -0.01
    12   1.0622      0.00     0.12       0.00    -0.03
    13   1.0622      0.00    -0.06       0.00     0.07
    14   1.0622      0.00    -0.18       0.00     0.06
    15   1.0624      0.00    -0.40       0.00     0.01
    16   1.0624      0.00     0.06       0.00     0.35
    17   1.0625      0.00     0.37       0.00     0.36
    18   1.0645      0.00     0.65       0.00    -0.60
    19   1.0645      0.00     0.04       0.00    -0.60
    20   1.0645      0.00    -0.88       0.00    -0.40
    21   1.0646      0.00    -0.36       0.00    -0.26
    22   1.0675      0.00    -0.24       0.00    -0.22
    23   1.0675      0.00    -0.08       0.00    -0.06
    24   1.0676      0.00    -0.46       0.00     0.82
    25   1.0676      0.00     0.02       0.00     0.12
    26   1.0701      0.00     1.16       0.00    -0.67
    27   1.0701      0.00    -0.07       0.00    -0.10
    28   1.0702      0.00    -0.32       0.00    -0.18
    29   1.0718      0.00    -0.24       0.00     0.22
    30   1.0718      0.00     0.41       0.00     0.86
    31   1.0719      0.00     0.70       0.00     0.87
    32   1.1355      0.00     0.05       0.00     0.05
    33   1.1355      0.00     0.04       0.00    -0.14
    34   1.1356      0.00    -0.13       0.00    -0.23
    35   1.1356      0.00    -0.14       0.00    -0.23
    36   2.0646      0.00     0.29       0.00     0.09
    37   2.0647      0.00    -0.06       0.00    -0.24
    38   2.0647      0.00    -0.46       0.00     0.02
    39   2.0674      0.00     0.10       0.00     0.25
    40   2.0674      0.00    -0.33       0.00    -0.20
    41   2.0674      0.00    -0.03       0.00     0.18
    42   2.0675      0.00    -0.07       0.00     0.06
    43   2.0675      0.00    -0.14       0.00     0.12
    44   2.0676      0.00    -0.06       0.00    -0.07
    45   2.0837      0.00    -0.11       0.00     0.09
    46   2.0838      0.00     0.00       0.00    -0.09
    47   2.0838      0.00     0.11       0.00     0.20
    48   2.0866      0.00     0.19       0.00    -0.01
    49   2.0866      0.00    -0.14       0.00     0.00
    50   2.1082      0.00     0.03       0.00    -0.14
    51   2.1083      0.00     0.09       0.00     0.01
    52   2.1083      0.00     0.04       0.00     0.08
    53   2.1083      0.00    -0.12       0.00    -0.05
    54   2.1329      0.00    -0.16       0.00     0.01
    55   2.1330      0.00    -0.05       0.00     0.01
    56   2.1330      0.00    -0.16       0.00     0.16
    57   2.1411      0.00    -0.05       0.00    -0.02
    58   2.1411      0.00     0.03       0.00     0.15
    59   2.1411      0.00     0.26       0.00    -0.12
    60   2.1572      0.00    -0.25       0.00     0.25
    61   2.1572      0.00     0.37       0.00     0.36
    62   2.1573      0.00    -0.22       0.00     0.04
    63   2.1573      0.00     0.24       0.00     0.10
    64   2.1602      0.00     0.03       0.00    -0.06
    65   2.1602      0.00    -0.16       0.00     0.02
    66   2.1602      0.00     0.11       0.00     0.25
    67   2.1603      0.00    -0.05       0.00    -0.07
    68   2.1658      0.00    -0.19       0.00    -0.13
    69   2.1658      0.00     0.05       0.00    -0.15
    70   2.1658      0.00     0.00       0.00     0.12
    71   2.1659      0.00    -0.23       0.00     0.05
    72   2.1679      0.00     0.23       0.00    -0.20
    73   2.1679      0.00     0.13       0.00    -0.28
    74   2.1679      0.00    -0.26       0.00    -0.05
    75   2.1679      0.00     0.39       0.00    -0.32
    76   2.1686      0.00     0.05       0.00     0.13
    77   2.1686      0.00    -0.16       0.00    -0.13
    78   2.1980      0.00     0.12       0.00     0.08
    79   2.1980      0.00     0.14       0.00     0.08
    80   2.1980      0.00    -0.12       0.00    -0.11
    81   2.1980      0.00     0.06       0.00    -0.01
    82   2.2038      0.00    -0.11       0.00     0.21
    83   2.2039      0.00    -0.01       0.00     0.03
    84   2.2039      0.00    -0.00       0.00    -0.05
    85   2.2313      0.00     0.17       0.00     0.12
    86   2.2313      0.00    -0.29       0.00     0.01
    87   2.2314      0.00    -0.05       0.00     0.01
    88   2.2340      0.00     0.34       0.00     0.08
    89   2.2340      0.00     0.05       0.00     0.08
    90   2.2340      0.00     0.03       0.00     0.18
    91   2.2341      0.00    -0.12       0.00    -0.04
    92   2.3078      0.00     0.09       0.00    -0.31
    93   2.3078      0.00     0.10       0.00    -0.21
    94   2.3078      0.00    -0.08       0.00    -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.

19RJ2    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj         9.704     9.704     9.704
ecceobj         0.479     0.479     0.479
incobj         23.092    23.092    23.092
qmin            5.057     5.057     5.057
qmax           38.684    14.350    14.350
amean          14.986     9.528     9.560
amin            9.375     8.998     9.212
amax           22.161     9.799     9.799
emean           0.580     0.419     0.418
emin            0.381     0.363     0.371
emax            0.746     0.479     0.479
imean          23.153    26.316    26.315
imin           18.927    24.643    24.643
imax           27.256    27.628    27.265
excite_mean     0.711     0.611     0.610
fracstop        0.003     0.001     0.001
cjmean          3.260     4.079     4.069

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        86.2     127.4     143.0
kozaiamp        175.3     175.3     175.3