Orbit Fit and Astrometric record for 16CN323

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: 16CN323   
# Created Fri Dec  3 02:13:45 2021
# Orbit generated from Bernstein formalism
# Fitting     25 observations of     25
# Arc:   2.27y
# First observation: 2016/02/05
#  Last observation: 2018/05/15
Preliminary a, adot, b, bdot, g, gdot:
   0.000062   0.013605   0.000002  -0.003174   0.017431   0.000000
# Chi-squared of fit:    27.96 DOF:     44 RMS:  0.19
# Min/Max residuals:    -0.43    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.192524E-05  1.353648E-02 -2.656072E-06 -3.154560E-03  1.725858E-02 -9.309620E-03
# Covariance matrix:
  2.1306E-13 -2.0243E-13 -6.4564E-15  3.7554E-14  4.1912E-14 -5.1310E-12
 -2.0243E-13  1.4824E-12  7.6197E-14 -4.3956E-13  5.7520E-13  5.9765E-11
 -6.4564E-15  7.6197E-14  1.9612E-13 -1.1918E-13  2.6475E-14  3.2514E-12
  3.7554E-14 -4.3956E-13 -1.1918E-13  2.0594E-13 -1.5069E-13 -1.8771E-11
  4.1912E-14  5.7520E-13  2.6475E-14 -1.5069E-13  7.9769E-13  2.0323E-11
 -5.1310E-12  5.9765E-11  3.2514E-12 -1.8771E-11  2.0323E-11  2.5534E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.147273  114.513767   -0.351093    0.002552   -0.919623  2457423.747949
# Heliocentric elements and errors
Epoch:              2457420.5000  =  2016/02/02
Mean Anomaly:          337.82504 +/-     0.269
Argument of Peri:      271.33898 +/-     0.012
Long of Asc Node:      295.48494 +/-     0.000
Inclination:            13.04879 +/-     0.001
Eccentricity:         0.64860251 +/-    0.0035
Semi-Major Axis:     99.33054242 +/-    0.7833
Time of Perihelion: 2479693.7168 +/-      59.7
Perihelion:          34.90450326 +/-    0.4464
Aphelion:           163.75658158 +/-    1.3383
Period (y)              989.9937 +/-     11.71
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.74622233 +/-    0.0012
Ecliptic Y           53.40832359 +/-    0.0027
Ecliptic Z            0.14875413 +/-    0.0000
Ecliptic XDOT        -0.00134206 +/-    0.0000
Ecliptic YDOT        -0.00224050 +/-    0.0000
Ecliptic ZDOT        -0.00050421 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   58.86294824 +/-    0.0025
Geocenter to KBO     57.94218684 +/-    0.0030
# Hcoef:  7.03

The following table shows the complete astrometric record for 16CN323. 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 (16CN323) followed by the observatory code and reference code for the source of the astrometry.

2016 02  05.24716  07 45 49.625  +21 21 47.64  24.9r 16CN323   568  C~31Lu      
2016 02  05.43125  07 45 48.950  +21 21 49.15  24.4r 16CN323   568  C~31Lu      
2016 02  05.52552  07 45 48.599  +21 21 49.62  24.7r 16CN323   568  C~31Lv      
2016 03  10.03111  07 44 12.189  +21 24 46.74        16CN323   304  C~31Lv      
2016 03  10.03762  07 44 12.170  +21 24 46.88        16CN323   304  C~31Lv      
2016 03  10.08340  07 44 12.083  +21 24 46.89        16CN323   304  C~31Lv      
2016 03  10.12798  07 44 11.980  +21 24 46.98        16CN323   304  C~31Lv      
2016 12  30.29465  07 51 17.474  +20 57 40.67        16CN323   G37  C~31Lv      
2016 12  30.35908  07 51 17.251  +20 57 41.14        16CN323   G37  C~31Lv      
2017 04  21.99157  07 46 56.036  +21 05 35.72        16CN323   304  C~31Lv      
2017 04  23.00868  07 46 57.013  +21 05 31.24        16CN323   304  C~31Lv      
2018 03  07.13863  07 50 38.762  +20 46 01.33        16CN323   G37  C~31Lv      
2018 03  07.14613  07 50 38.717  +20 46 01.49        16CN323   G37  C~31Lv      
2018 03  07.15350  07 50 38.724  +20 46 01.76        16CN323   G37  C~31Lv      
2018 03  07.22473  07 50 38.563  +20 46 02.04        16CN323   G37  C~31Lv      
2018 03  07.23215  07 50 38.523  +20 46 02.13        16CN323   G37  C~31Lv      
2018 03  07.23942  07 50 38.514  +20 46 02.04        16CN323   G37  C~31Lv      
2018 03  11.08413  07 50 30.117  +20 46 17.88  24.5r 16CN323   304  C~31Lv      
2018 03  11.14519  07 50 29.999  +20 46 18.46        16CN323   304  C~31Lv      
2018 05  14.16034  07 50 41.365  +20 44 05.36        16CN323   G37  C~31Lv      
2018 05  14.16819  07 50 41.375  +20 44 05.08        16CN323   G37  C~31Lv      
2018 05  14.17567  07 50 41.401  +20 44 05.04        16CN323   G37  C~31Lv      
2018 05  15.15943  07 50 43.792  +20 43 57.16        16CN323   G37  C~31Lv      
2018 05  15.16725  07 50 43.811  +20 43 57.63        16CN323   G37  C~31Lv      
2018 05  15.17457  07 50 43.834  +20 43 57.23        16CN323   G37  C~31Lv      

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    -0.05
     2   0.0005     -9.55    -0.01      -0.18     0.12
     3   0.0008    -14.46    -0.10      -0.59    -0.09
     4   0.0925  -1371.19     0.03     -63.14    -0.15
     5   0.0925  -1371.47    -0.07     -63.05    -0.04
     6   0.0926  -1372.67     0.05     -63.25    -0.15
     7   0.0928  -1374.10    -0.11     -63.41    -0.22
     8   0.9009   4773.36    -0.05    -590.82     0.34
     9   0.9011   4770.21     0.21    -590.94     0.34
    10   1.2094   1086.82     0.37    -791.03     0.26
    11   1.2122   1101.08    -0.15    -793.00     0.05
    12   2.0832   4369.48    -0.03   -1378.73    -0.28
    13   2.0832   4368.83    -0.43   -1378.69    -0.23
    14   2.0832   4368.87    -0.14   -1378.41     0.07
    15   2.0834   4366.60    -0.03   -1378.55     0.06
    16   2.0835   4366.03    -0.35   -1378.57     0.06
    17   2.0835   4365.93    -0.22   -1378.68    -0.04
    18   2.0940   4247.20     0.03   -1384.84    -0.05
    19   2.0942   4245.47     0.13   -1384.57     0.33
    20   2.2694   4426.82     0.26   -1486.00    -0.01
    21   2.2695   4427.01     0.18   -1486.25    -0.24
    22   2.2695   4427.37     0.29   -1486.22    -0.20
    23   2.2722   4461.81     0.05   -1487.77    -0.21
    24   2.2722   4461.98    -0.05   -1487.26     0.32
    25   2.2722   4462.38     0.08   -1487.59    -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.

16CN323    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        97.846   100.068    95.755
ecceobj         0.642     0.652     0.631
incobj         13.057    13.055    13.059
qmin           33.983    33.768    34.148
qmax          167.163   174.098   161.497
amean          97.429   101.076    94.866
amin           94.548    98.619    92.063
amax          101.111   104.523    98.271
emean           0.638     0.652     0.626
emin            0.621     0.637     0.609
emax            0.654     0.666     0.643
imean          15.666    15.692    15.468
imin           14.524    14.562    14.368
imax           16.835    17.154    16.721
excite_mean     0.692     0.706     0.680
fracstop        1.000     1.000     1.000
cjmean          2.977     2.971     2.985

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       168.7     151.2     169.4
kozaiamp        179.9     180.0     180.0