Orbit Fit and Astrometric record for 16TS97

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: 16TS97    
# Created Sat Dec  4 02:13:58 2021
# Orbit generated from Bernstein formalism
# Fitting      9 observations of      9
# Arc:   1.19y
# First observation: 2016/10/06
#  Last observation: 2017/12/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.000013   0.008417  -0.000002  -0.001849   0.014067   0.000000
# Chi-squared of fit:     5.56 DOF:     12 RMS:  0.14
# Min/Max residuals:    -0.27    0.18
# Exact a, adot, b, bdot, g, gdot:
  9.421821E-06  8.476755E-03 -2.729715E-06 -1.861450E-03  1.416028E-02 -3.190637E-04
# Covariance matrix:
  5.0382E-13 -1.2146E-12  8.7449E-15 -2.0410E-13  1.2638E-12  3.7336E-10
 -1.2146E-12  1.5109E-11 -3.5867E-13  1.7506E-12 -9.2276E-12 -4.2080E-09
  8.7449E-15 -3.5867E-13  2.5704E-13 -2.8806E-13  1.7927E-13  9.7942E-11
 -2.0410E-13  1.7506E-12 -2.8806E-13  1.0132E-12 -1.4159E-12 -5.5430E-10
  1.2638E-12 -9.2276E-12  1.7927E-13 -1.4159E-12  8.0932E-12  3.0105E-09
  3.7336E-10 -4.2080E-09  9.7942E-11 -5.5430E-10  3.0105E-09  1.2770E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
  -30.326325   32.623810    0.332303   -0.478170   -0.817826  2457667.717479
# Heliocentric elements and errors
Epoch:              2457660.5000  =  2016/09/29
Mean Anomaly:          189.65805 +/-    14.664
Argument of Peri:       64.04108 +/-    15.300
Long of Asc Node:      146.46238 +/-     0.088
Inclination:            32.26397 +/-     0.018
Eccentricity:         0.32712744 +/-    0.0081
Semi-Major Axis:     53.93517057 +/-    0.3207
Time of Perihelion: 2526118.7221 +/-    5861.7
Perihelion:          36.29149610 +/-    0.4878
Aphelion:            71.57884504 +/-    0.6104
Period (y)              396.1104 +/-      3.53
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           52.31245733 +/-    0.0103
Ecliptic Y           33.09103299 +/-    0.0066
Ecliptic Z          -35.65798763 +/-    0.0072
Ecliptic XDOT        -0.00107958 +/-    0.0002
Ecliptic YDOT         0.00124684 +/-    0.0001
Ecliptic ZDOT        -0.00027955 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   71.43599750 +/-    0.0089
Geocenter to KBO     70.62005691 +/-    0.0142
# Hcoef:  6.10

The following table shows the complete astrometric record for 16TS97. 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 (16TS97) followed by the observatory code and reference code for the source of the astrometry.

2016 10  06.21669  02 43 15.078  -16 09 00.12  24.7r 16TS97    807  C~2b80      
2016 10  06.34782  02 43 14.734  -16 09 03.63  24.5r 16TS97    807  C~2b80      
2016 10  07.29948  02 43 12.290  -16 09 25.68  24.5r 16TS97    807  C~2b80      
2016 11  02.14200  02 41 58.303  -16 17 26.70        16TS97    304  C~2b80      
2016 11  03.08489  02 41 55.445  -16 17 39.07        16TS97    304  C~2b80      
2016 12  30.07959  02 39 31.650  -16 16 18.07        16TS97    304  C~2b80      
2016 12  30.15791  02 39 31.535  -16 16 16.80        16TS97    304  C~2b80      
2017 12  13.08062  02 42 07.032  -16 15 35.91  24.6r 16TS97    304  C~2b80      
2017 12  14.06707  02 42 04.793  -16 15 28.35        16TS97    304  C~2b80      

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     0.13
     2   0.0004     -5.87    -0.15      -1.56    -0.27
     3   0.0030    -46.56     0.13      -9.95    -0.21
     4   0.0737  -1212.97     0.05     -90.04    -0.00
     5   0.0763  -1255.86    -0.14     -87.34     0.07
     6   0.2323  -3170.69     0.00     704.87     0.18
     7   0.2326  -3171.81     0.12     706.64     0.18
     8   1.1851  -1056.62    -0.17     -29.81    -0.10
     9   1.1878  -1084.23     0.15     -11.52     0.03

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.

16TS97    quality flag:1

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        54.450    59.937    54.375
ecceobj         0.315     0.427     0.313
incobj         32.200    32.146    32.208
qmin           35.844    31.850    35.959
qmax           73.250    88.857    73.005
amean          54.160    59.721    54.096
amin           53.630    58.935    53.553
amax           54.841    60.902    54.747
emean           0.318     0.442     0.314
emin            0.299     0.415     0.294
emax            0.336     0.466     0.334
imean          31.196    30.528    31.277
imin           30.758    29.541    30.798
imax           31.786    31.796    31.905
excite_mean     0.608     0.673     0.607
fracstop        1.000     1.000     1.000
cjmean          2.732     2.681     2.732

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       164.7     163.8     166.3
kozaiamp        179.9     180.0     180.0