Orbit Fit and Astrometric record for 15RN279

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: 15RN279   
# Created Sat Dec  4 02:13:31 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     57 observations of     57
# Arc:   6.28y
# First observation: 2015/06/23
#  Last observation: 2021/10/03
# Chi-squared of fit:     9.01 DOF:    108 RMS:  0.07
# Min/Max residuals:    -0.20    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.579924E-05  2.509628E-02  4.285297E-06  6.982357E-03  2.523906E-02  2.758497E-03
# Covariance matrix:
  1.6236E-13 -1.3158E-14  1.1440E-16 -3.2337E-16  8.7889E-14  7.3008E-15
 -1.3158E-14  1.3179E-13 -2.9320E-14  3.7089E-14  9.8536E-14  8.7160E-13
  1.1440E-16 -2.9320E-14  5.9815E-14 -2.9059E-14 -2.3253E-14 -2.1809E-13
 -3.2337E-16  3.7089E-14 -2.9059E-14  2.6004E-14  2.9280E-14  2.7594E-13
  8.7889E-14  9.8536E-14 -2.3253E-14  2.9280E-14  1.4452E-13  6.9928E-13
  7.3008E-15  8.7160E-13 -2.1809E-13  2.7594E-13  6.9928E-13  6.4790E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.098997    7.322265    1.011508    0.000262    0.098903  2457197.032948
# Heliocentric elements and errors
Epoch:              2457196.5000  =  2015/06/23
Mean Anomaly:           42.46750 +/-     0.025
Argument of Peri:      307.84777 +/-     0.036
Long of Asc Node:        6.21294 +/-     0.000
Inclination:            15.54233 +/-     0.000
Eccentricity:         0.10883676 +/-    0.0001
Semi-Major Axis:     42.69922860 +/-    0.0020
Time of Perihelion: 2445174.3362 +/-       7.1
Perihelion:          38.05198274 +/-    0.0040
Aphelion:            47.34647446 +/-    0.0042
Period (y)              279.0219 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.32528491 +/-    0.0006
Ecliptic Y            4.03431084 +/-    0.0001
Ecliptic Z           -0.06822808 +/-    0.0000
Ecliptic XDOT        -0.00005134 +/-    0.0000
Ecliptic YDOT         0.00273223 +/-    0.0000
Ecliptic ZDOT         0.00075697 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.53168690 +/-    0.0006
Geocenter to KBO     39.62106520 +/-    0.0006
# Hcoef:  7.87

The following table shows the complete astrometric record for 15RN279. 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 (15RN279) followed by the observatory code and reference code for the source of the astrometry.

2015 06  23.53217  00 27 03.115  +02 48 54.03  24.2r 15RN279   568  C~2nvm      
2015 06  23.55117  00 27 03.143  +02 48 54.27  24.0r 15RN279   568  C~2nvm      
2015 07  19.57093  00 27 06.972  +02 51 07.70  23.9r 15RN279   568  C~2nvm      
2015 08  11.47583  00 26 21.407  +02 47 51.93  23.7r 15RN279   568  C~2nvm      
2015 08  11.52038  00 26 21.279  +02 47 51.27  23.9r 15RN279   568  C~2nvm      
2015 09  08.38448  00 24 36.623  +02 38 37.91  23.6r 15RN279   568  C~2nvm      
2015 09  08.48868  00 24 36.149  +02 38 35.41  23.7r 15RN279   568  C~2nvm      
2015 09  08.53090  00 24 35.951  +02 38 34.40  24.0r 15RN279   568  C~2nvm      
2015 09  09.50777  00 24 31.585  +02 38 10.52  24.1w 15RN279   568  C~2nvm      
2015 09  10.44877  00 24 27.355  +02 37 47.29  24.1w 15RN279   568  C~2nvm      
2015 09  16.43207  00 23 59.760  +02 35 15.64  24.2w 15RN279   568  C~2nvm      
2015 10  03.35878  00 22 38.498  +02 27 45.49  23.9w 15RN279   568  C~2nvm      
2015 11  07.22350  00 20 06.046  +02 13 52.59  24.1w 15RN279   568  C~2nvm      
2015 11  07.27597  00 20 05.846  +02 13 51.66  24.1w 15RN279   568  C~2nvm      
2015 11  10.35312  00 19 55.153  +02 12 55.68  24.3w 15RN279   568  C~2nvm      
2015 12  07.29979  00 18 52.612  +02 08 05.91  24.0w 15RN279   568  C~2nvm      
2016 01  01.22912  00 18 53.495  +02 09 54.93  24.1w 15RN279   568  C~2nvm      
2016 09  07.48826  00 29 23.081  +03 36 05.97  24.1w 15RN279   568  C~2nvm      
2016 09  07.53459  00 29 22.872  +03 36 04.88  23.9w 15RN279   568  C~2nvm      
2016 09  26.56094  00 27 54.147  +03 28 00.69  23.8w 15RN279   568  C~2nvm      
2016 10  27.36317  00 25 30.752  +03 14 47.26  24.0w 15RN279   568  C~2nvm      
2016 10  27.43514  00 25 30.451  +03 14 45.70  24.0w 15RN279   568  C~2nvm      
2016 10  27.44458  00 25 30.416  +03 14 45.44  24.3w 15RN279   568  C~2nvm      
2016 10  27.45037  00 25 30.392  +03 14 45.27  24.3w 15RN279   568  C~2nvm      
2016 10  28.31680  00 25 26.766  +03 14 25.37  24.0w 15RN279   568  C~2nvm      
2016 10  28.32258  00 25 26.747  +03 14 25.18  23.9w 15RN279   568  C~2nvm      
2016 10  28.34764  00 25 26.637  +03 14 24.68  23.9w 15RN279   568  C~2nvm      
2016 10  29.38909  00 25 22.329  +03 14 00.99  24.3w 15RN279   568  C~2nvm      
2016 10  30.33565  00 25 18.466  +03 13 39.83  24.1w 15RN279   568  C~2nvm      
2016 11  02.24820  00 25 06.871  +03 12 36.39  24.2w 15RN279   568  C~2nvm      
2016 11  03.22373  00 25 03.086  +03 12 16.11  24.0w 15RN279   568  C~2nvm      
2016 11  03.28691  00 25 02.837  +03 12 14.72  24.1w 15RN279   568  C~2nvm      
2016 11  03.33931  00 25 02.632  +03 12 13.62  23.9w 15RN279   568  C~2nvm      
2016 11  04.25321  00 24 59.156  +03 11 54.65  24.1w 15RN279   568  C~2nvm      
2016 11  04.31874  00 24 58.893  +03 11 53.32  24.0w 15RN279   568  C~2nvm      
2016 12  24.26183  00 23 26.646  +03 04 58.86  24.5w 15RN279   568  C~2nvm      
2016 12  25.22290  00 23 27.096  +03 05 04.94  24.3w 15RN279   568  C~2nvm      
2016 12  25.24665  00 23 27.098  +03 05 05.15  24.1w 15RN279   568  C~2nvm      
2016 12  25.27236  00 23 27.116  +03 05 05.50  24.1w 15RN279   568  C~2nvm      
2016 12  26.23617  00 23 27.662  +03 05 12.08  23.8w 15RN279   568  C~2nvm      
2016 12  28.23047  00 23 29.055  +03 05 28.03  24.1w 15RN279   568  C~2nvm      
2016 12  28.23509  00 23 29.067  +03 05 28.11  24.1w 15RN279   568  C~2nvm      
2016 12  28.23971  00 23 29.068  +03 05 28.09  23.9w 15RN279   568  C~2nvm      
2016 12  28.24434  00 23 29.068  +03 05 28.17  23.9w 15RN279   568  C~2nvm      
2016 12  28.25233  00 23 29.074  +03 05 28.17  23.9w 15RN279   568  C~2nvm      
2016 12  28.27353  00 23 29.090  +03 05 28.40  23.9w 15RN279   568  C~2nvm      
2016 12  28.27815  00 23 29.087  +03 05 28.67  24.5w 15RN279   568  C~2nvm      
2017 01  02.24972  00 23 34.302  +03 06 18.86  24.0w 15RN279   568  C~2nvm      
2017 01  02.26962  00 23 34.322  +03 06 19.07        15RN279   568  C~2nvm      
2017 01  29.23023  00 24 42.291  +03 15 09.21  24.0w 15RN279   568  C~2nvm      
2017 09  15.44482  00 33 33.613  +04 30 04.25  24.1w 15RN279   568  C~2nvm      
2017 09  22.50999  00 33 00.418  +04 27 04.84  24.0w 15RN279   568  C~2nvm      
2017 11  22.36828  00 28 44.875  +04 03 37.63  24.4w 15RN279   568  C~2nvm      
2017 12  23.30656  00 28 05.425  +04 00 52.94        15RN279   568  C~2nvm      
2021 10  03.293810 00 51 09.731  +08 07 27.37  23.7G 15RN279   G37  C~55Wp      
2021 10  03.330440 00 51 09.570  +08 07 26.39        15RN279   G37  C~55Wp      
2021 10  03.367060 00 51 09.379  +08 07 25.37        15RN279   G37  C~55Wp      

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    -0.02       0.00     0.01
     2   0.0001      0.00     0.03       0.00     0.01
     3   0.0713      0.00     0.01       0.00     0.07
     4   0.1340      0.00    -0.00       0.00     0.02
     5   0.1341      0.00     0.07       0.00     0.00
     6   0.2104      0.00     0.07       0.00    -0.02
     7   0.2107      0.00     0.04       0.00     0.01
     8   0.2108      0.00    -0.05       0.00     0.03
     9   0.2135      0.00    -0.05       0.00     0.03
    10   0.2161      0.00     0.01       0.00     0.01
    11   0.2324      0.00    -0.12       0.00     0.01
    12   0.2788      0.00     0.02       0.00    -0.01
    13   0.3742      0.00     0.08       0.00    -0.03
    14   0.3744      0.00    -0.05       0.00     0.02
    15   0.3828      0.00     0.06       0.00    -0.10
    16   0.4566      0.00    -0.05       0.00     0.05
    17   0.5248      0.00    -0.02       0.00     0.08
    18   1.2100      0.00     0.02       0.00    -0.03
    19   1.2101      0.00    -0.00       0.00    -0.03
    20   1.2622      0.00    -0.15       0.00    -0.07
    21   1.3466      0.00    -0.04       0.00    -0.03
    22   1.3468      0.00     0.08       0.00     0.07
    23   1.3468      0.00     0.16       0.00     0.03
    24   1.3468      0.00     0.17       0.00    -0.00
    25   1.3492      0.00    -0.02       0.00    -0.02
    26   1.3492      0.00     0.06       0.00    -0.08
    27   1.3493      0.00     0.01       0.00    -0.00
    28   1.3521      0.00     0.05       0.00    -0.09
    29   1.3547      0.00     0.05       0.00    -0.08
    30   1.3627      0.00     0.11       0.00    -0.20
    31   1.3653      0.00     0.05       0.00     0.08
    32   1.3655      0.00     0.04       0.00     0.01
    33   1.3657      0.00     0.05       0.00     0.00
    34   1.3682      0.00     0.12       0.00    -0.04
    35   1.3683      0.00    -0.01       0.00    -0.03
    36   1.5051      0.00    -0.03       0.00    -0.06
    37   1.5077      0.00     0.03       0.00    -0.12
    38   1.5078      0.00    -0.09       0.00    -0.07
    39   1.5078      0.00     0.02       0.00     0.11
    40   1.5105      0.00     0.08       0.00    -0.08
    41   1.5159      0.00    -0.08       0.00     0.03
    42   1.5160      0.00     0.05       0.00     0.07
    43   1.5160      0.00     0.02       0.00     0.01
    44   1.5160      0.00    -0.03       0.00     0.05
    45   1.5160      0.00    -0.03       0.00    -0.01
    46   1.5161      0.00    -0.02       0.00     0.03
    47   1.5161      0.00    -0.12       0.00     0.27
    48   1.5297      0.00     0.03       0.00     0.02
    49   1.5297      0.00    -0.03       0.00    -0.00
    50   1.6036      0.00    -0.10       0.00     0.02
    51   2.2311      0.00     0.03       0.00     0.03
    52   2.2505      0.00    -0.14       0.00     0.07
    53   2.4171      0.00    -0.01       0.00     0.12
    54   2.5018      0.00    -0.01       0.00     0.04
    55   6.2800      0.00    -0.14       0.00     0.04
    56   6.2801      0.00     0.15       0.00    -0.00
    57   6.2802      0.00    -0.01       0.00    -0.08

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.

15RN279    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.114    43.114    43.114
ecceobj         0.116     0.116     0.116
incobj         15.472    15.472    15.472
qmin           37.350    37.375    37.365
qmax           48.711    48.672    48.688
amean          42.892    42.885    42.885
amin           42.546    42.522    42.520
amax           43.285    43.286    43.277
emean           0.110     0.110     0.110
emin            0.096     0.096     0.096
emax            0.127     0.126     0.126
imean          15.512    15.513    15.512
imin           14.825    14.825    14.830
imax           16.122    16.120    16.122
excite_mean     0.289     0.289     0.289
fracstop        1.000     1.000     1.000
cjmean          2.987     2.987     2.987

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       182.3     182.0     182.2
kozaiamp        180.0     180.0     179.9