Orbit Fit and Astrometric record for 16EE367

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: 16EE367   
# Created Tue Apr  1 01:10:44 2025
# Orbit generated from Bernstein formalism
# Fitting     22 observations of     22
# Arc:   3.06y
# First observation: 2014/03/01
#  Last observation: 2017/03/24
Preliminary a, adot, b, bdot, g, gdot:
   0.000064   0.027022  -0.000005  -0.004806   0.024928   0.000000
# Chi-squared of fit:     6.20 DOF:     38 RMS:  0.09
# Min/Max residuals:    -0.24    0.21
# Exact a, adot, b, bdot, g, gdot:
  1.753238E-05  2.755378E-02 -3.860448E-06 -4.939243E-03  2.489468E-02  8.799781E-03
# Covariance matrix:
  2.1139E-13 -8.1628E-14 -3.0166E-16  1.8132E-15  5.1153E-14 -1.5438E-13
 -8.1628E-14  9.5179E-13  2.0989E-14 -1.5814E-13  9.5734E-13  1.2456E-11
 -3.0166E-16  2.0989E-14  2.0277E-13 -8.8485E-14  2.0417E-14  2.9924E-13
  1.8132E-15 -1.5814E-13 -8.8485E-14  8.2365E-14 -1.5624E-13 -2.2446E-12
  5.1153E-14  9.5734E-13  2.0417E-14 -1.5624E-13  1.2724E-12  1.2246E-11
 -1.5438E-13  1.2456E-11  2.9924E-13 -2.2446E-12  1.2246E-11  1.7706E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.573464  172.620779    0.210731   -0.009527   -0.966099  2456717.605812
# Heliocentric elements and errors
Epoch:              2456710.5000  =  2014/02/22
Mean Anomaly:           15.14002 +/-     0.015
Argument of Peri:      131.51611 +/-     0.045
Long of Asc Node:      349.19560 +/-     0.000
Inclination:            10.15334 +/-     0.000
Eccentricity:         0.52379750 +/-    0.0004
Semi-Major Axis:     75.11071096 +/-    0.0449
Time of Perihelion: 2446711.0707 +/-       4.2
Perihelion:          35.76790814 +/-    0.0397
Aphelion:           114.45351379 +/-    0.0761
Period (y)              650.9701 +/-      0.58
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.76705104 +/-    0.0018
Ecliptic Y            5.49341067 +/-    0.0002
Ecliptic Z           -0.40223744 +/-    0.0000
Ecliptic XDOT        -0.00134928 +/-    0.0000
Ecliptic YDOT        -0.00288457 +/-    0.0000
Ecliptic ZDOT        -0.00055273 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.13747448 +/-    0.0018
Geocenter to KBO     40.16923120 +/-    0.0018
# Hcoef:  7.11

The following table shows the complete astrometric record for 16EE367. 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 (16EE367) followed by the observatory code and reference code for the source of the astrometry.

2014 03  01.105034 11 31 59.297  +02 24 05.76  23.4g 16EE367   W84  C~8HEL      
2014 03  01.210297 11 31 58.822  +02 24 08.21  24.2g 16EE367   W84  C~8HEL      
2014 03  01.305131 11 31 58.390  +02 24 10.69  23.5g 16EE367   W84  C~8HEL      
2014 03  02.281209 11 31 54.041  +02 24 35.60  23.5g 16EE367   W84  C~8HEL      
2014 03  03.179953 11 31 50.018  +02 24 58.68  23.0g 16EE367   W84  C~8HEL      
2014 03  21.272668 11 30 27.811  +02 32 52.04  23.0r 16EE367   W84  C~8HEL      
2014 03  22.253480 11 30 23.402  +02 33 17.42  23.0r 16EE367   W84  C~8HEL      
2016 03  04.49061  11 42 15.06   +00 41 18.0   23.1i 16EE367   T09  C~8AhO      
2016 03  04.51566  11 42 14.93   +00 41 18.7   23.3i 16EE367   T09  C~8AhO      
2016 03  04.51836  11 42 14.91   +00 41 18.7   23.1i 16EE367   T09  C~8AhO      
2016 04  04.29714  11 39 59.34   +00 54 30.2   23.7g 16EE367   T09  C~8AhO      
2016 04  04.30348  11 39 59.31   +00 54 30.3   23.7g 16EE367   T09  C~8AhO      
2016 04  04.31835  11 39 59.25   +00 54 30.8   23.8g 16EE367   T09  C~8AhO      
2016 06  01.26241  11 37 33.82   +01 08 41.1   23.3z 16EE367   T09  C~8AhO      
2016 06  01.30636  11 37 33.81   +01 08 41.3   23.2z 16EE367   T09  C~8AhO      
2016 06  01.33213  11 37 33.79   +01 08 41.3   23.4z 16EE367   T09  C~8AhO      
2016 06  05.26379  11 37 33.09   +01 08 42.0   23.4r 16EE367   T09  C~8AhO      
2016 06  05.27511  11 37 33.09   +01 08 42.1   23.4r 16EE367   T09  C~8AhO      
2016 06  05.28799  11 37 33.09   +01 08 41.8   23.3r 16EE367   T09  C~8AhO      
2017 03  23.16789  11 46 01.67   -00 01 43.7   23.6V 16EE367   W84  C~8HEL      
2017 03  23.23627  11 46 01.36   -00 01 41.8         16EE367   W84  C~8HEL      
2017 03  24.20507  11 45 57.08   -00 01 16.7         16EE367   W84  C~8HEL      

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    -0.01       0.00     0.15
     2   0.0003     -7.51     0.09      -0.56    -0.05
     3   0.0005    -14.44     0.03      -0.84    -0.00
     4   0.0032    -84.15     0.06      -3.68     0.05
     5   0.0057   -148.66    -0.04      -6.28     0.08
     6   0.0552  -1467.45    -0.11     -57.59    -0.06
     7   0.0579  -1538.17    -0.01     -60.33    -0.19
     8   2.0106  10929.84     0.21   -2015.43     0.18
     9   2.0107  10927.77    -0.06   -2015.56     0.14
    10   2.0107  10927.49    -0.15   -2015.68     0.03
    11   2.0950   8741.85    -0.02   -2093.32    -0.02
    12   2.0950   8741.40    -0.04   -2093.40    -0.09
    13   2.0950   8740.37    -0.05   -2093.30     0.05
    14   2.2537   6397.54     0.03   -2174.93    -0.24
    15   2.2538   6397.32     0.09   -2174.81    -0.05
    16   2.2539   6397.05    -0.02   -2174.93    -0.14
    17   2.2646   6387.12    -0.03   -2178.44     0.04
    18   2.2647   6387.08    -0.06   -2178.34     0.15
    19   2.2647   6387.20     0.07   -2178.62    -0.11
    20   3.0611  15090.71     0.07   -3043.96    -0.01
    21   3.0613  15085.66    -0.01   -3044.05     0.09
    22   3.0639  15016.40    -0.03   -3046.40    -0.02

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.

16EE367    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        74.251    74.376    74.126
ecceobj         0.519     0.520     0.518
incobj         10.184    10.184    10.184
qmin           34.798    34.740    34.766
qmax          117.403   117.210   117.275
amean          74.482    74.470    74.320
amin           73.217    72.756    72.608
amax           76.432    76.514    76.542
emean           0.520     0.520     0.519
emin            0.507     0.504     0.503
emax            0.536     0.535     0.535
imean          10.751    10.842    10.641
imin            9.851    10.008     9.813
imax           11.439    11.801    11.423
excite_mean     0.553     0.553     0.551
fracstop        1.000     1.000     1.000
cjmean          3.043     3.042     3.044

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       196.5     192.7     200.8
kozaiamp        179.9     179.9     180.0