Orbit Fit and Astrometric record for 16RN82

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: 16RN82    
# Created Tue Nov 30 02:13:58 2021
# Orbit generated from Bernstein formalism
# Fitting      9 observations of      9
# Arc:   2.23y
# First observation: 2016/09/06
#  Last observation: 2018/11/29
Preliminary a, adot, b, bdot, g, gdot:
   0.000233   0.042758  -0.000017  -0.007469   0.031272   0.000000
# Chi-squared of fit:     1.81 DOF:     12 RMS:  0.08
# Min/Max residuals:    -0.15    0.15
# Exact a, adot, b, bdot, g, gdot:
  2.134789E-05  4.247869E-02 -3.310396E-06 -7.398091E-03  3.073563E-02 -5.094414E-03
# Covariance matrix:
  5.0609E-13  1.1869E-12 -9.0419E-15 -2.4777E-13  8.2350E-13  1.6659E-11
  1.1869E-12  1.7871E-11 -2.6676E-14 -3.2959E-12  7.4189E-12  2.3298E-10
 -9.0419E-15 -2.6676E-14  3.1341E-13 -1.4565E-13 -3.1236E-14 -2.8030E-13
 -2.4777E-13 -3.2959E-12 -1.4565E-13  7.6398E-13 -1.3771E-12 -4.3342E-11
  8.2350E-13  7.4189E-12 -3.1236E-14 -1.3771E-12  3.8585E-12  9.4898E-11
  1.6659E-11  2.3298E-10 -2.8030E-13 -4.3342E-11  9.4898E-11  3.0723E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
  -23.077214    0.641843    0.285937   -0.379739   -0.891751  2457637.880309
# Heliocentric elements and errors
Epoch:              2457630.5000  =  2016/08/30
Mean Anomaly:          357.57179 +/-     0.023
Argument of Peri:      265.10746 +/-     0.174
Long of Asc Node:      114.97264 +/-     0.002
Inclination:            24.46123 +/-     0.000
Eccentricity:         0.68984889 +/-    0.0006
Semi-Major Axis:    105.62852618 +/-    0.1652
Time of Perihelion: 2460305.0666 +/-      24.4
Perihelion:          32.76080502 +/-    0.0802
Aphelion:           178.49624734 +/-    0.2859
Period (y)             1085.6255 +/-      2.55
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.89876957 +/-    0.0019
Ecliptic Y            0.05778774 +/-    0.0000
Ecliptic Z          -12.75312012 +/-    0.0008
Ecliptic XDOT        -0.00071649 +/-    0.0000
Ecliptic YDOT         0.00376915 +/-    0.0000
Ecliptic ZDOT        -0.00042842 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.42722503 +/-    0.0018
Geocenter to KBO     32.53552889 +/-    0.0021
# Hcoef:  7.77

The following table shows the complete astrometric record for 16RN82. 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 (16RN82) followed by the observatory code and reference code for the source of the astrometry.

2016 09  06.37952  00 40 45.868  -20 49 32.75  23.4r 16RN82    W84  C~55Zp      
2016 09  07.25254  00 40 41.742  -20 50 14.65  22.4i 16RN82    W84  C~55Zp      
2016 09  08.15969  00 40 37.424  -20 50 58.31  22.8z 16RN82    W84  C~55Zp      
2016 10  29.25182  00 36 09.136  -21 16 34.34  22.7r 16RN82    W84  C~55Zp      
2016 11  08.20862  00 35 25.143  -21 16 55.05  22.3z 16RN82    W84  C~55Zp      
2018 10  01.32350  00 59 05.720  -19 44 10.54  22.8z 16RN82    W84  C~55Zp      
2018 10  01.32487  00 59 05.718  -19 44 10.56  22.6i 16RN82    W84  C~55Zp      
2018 11  29.07691  00 54 29.497  -19 53 05.54  23.2r 16RN82    W84  C~55Zp      
2018 11  29.07829  00 54 29.498  -19 53 05.46  24.2g 16RN82    W84  C~55Zp      

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     0.10       0.00    -0.10
     2   0.0024    -70.18    -0.00     -13.30     0.15
     3   0.0049   -143.53    -0.10     -27.07    -0.15
     4   0.1448  -4196.92    -0.08     166.06     0.14
     5   0.1720  -4764.33     0.08     404.64    -0.02
     6   2.0669  15659.38    -0.04   -3261.59     0.01
     7   2.0669  15659.35     0.04   -3261.60    -0.00
     8   2.2278  11916.22    -0.04   -1991.33    -0.01
     9   2.2278  11916.27     0.04   -1991.27     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.

16RN82    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       109.542   109.686   109.399
ecceobj         0.701     0.701     0.701
incobj         24.462    24.462    24.462
qmin           30.722    31.866    31.427
qmax          194.305   191.259   191.335
amean         107.504   107.430   107.004
amin          103.816   103.833   103.754
amax          113.721   112.528   111.936
emean           0.693     0.686     0.689
emin            0.676     0.665     0.671
emax            0.712     0.706     0.711
imean          23.128    24.302    23.681
imin           20.703    22.724    22.086
imax           24.325    26.001    25.396
excite_mean     0.797     0.800     0.798
fracstop        1.000     1.000     1.000
cjmean          2.783     2.784     2.784

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       214.1     180.2     193.4
kozaiamp        180.0     180.0     180.0