Orbit Fit and Astrometric record for 15FV403

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: 15FV403   
# Created Mon Dec  6 02:13:14 2021
# Orbit generated from Bernstein formalism
# Fitting     11 observations of     11
# Arc:   0.98y
# First observation: 2015/03/17
#  Last observation: 2016/03/09
Preliminary a, adot, b, bdot, g, gdot:
  -0.000023   0.013514   0.000005  -0.002822   0.017910   0.000000
# Chi-squared of fit:     8.71 DOF:     16 RMS:  0.16
# Min/Max residuals:    -0.44    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.208127E-05  1.345761E-02 -2.721953E-06 -2.820634E-03  1.814274E-02  7.502899E-04
# Covariance matrix:
  4.8997E-13  6.6491E-13  2.5505E-14 -2.5445E-13  1.2865E-12  8.6033E-11
  6.6491E-13  3.4118E-11  5.4313E-13 -6.9097E-12  1.7359E-11  2.3729E-09
  2.5505E-14  5.4313E-13  2.3969E-13 -3.9643E-13  3.1755E-13  3.9521E-11
 -2.5445E-13 -6.9097E-12 -3.9643E-13  2.2780E-12 -3.8011E-12 -4.9718E-10
  1.2865E-12  1.7359E-11  3.1755E-13 -3.8011E-12  1.1755E-11  1.3008E-09
  8.6033E-11  2.3729E-09  3.9521E-11 -4.9718E-10  1.3008E-09  1.7063E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.376590  159.817748   -0.278993    0.023011   -0.951474  2457098.782398
# Heliocentric elements and errors
Epoch:              2457090.5000  =  2015/03/09
Mean Anomaly:          158.14196 +/-     7.252
Argument of Peri:        8.74532 +/-     7.296
Long of Asc Node:      346.54843 +/-     0.002
Inclination:            11.88371 +/-     0.004
Eccentricity:         0.18615771 +/-    0.0065
Semi-Major Axis:     47.65813592 +/-    0.1133
Time of Perihelion: 2404300.8690 +/-    2413.4
Perihelion:          38.78620625 +/-    0.3219
Aphelion:            56.53006558 +/-    0.3365
Period (y)              329.0135 +/-      1.17
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -52.71218193 +/-    0.0098
Ecliptic Y           19.07711157 +/-    0.0036
Ecliptic Z            1.32399793 +/-    0.0002
Ecliptic XDOT        -0.00081992 +/-    0.0001
Ecliptic YDOT        -0.00186933 +/-    0.0000
Ecliptic ZDOT        -0.00042272 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   56.07373075 +/-    0.0093
Geocenter to KBO     55.11846764 +/-    0.0104
# Hcoef:  7.65

The following table shows the complete astrometric record for 15FV403. 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 (15FV403) followed by the observatory code and reference code for the source of the astrometry.

2015 03  17.28162  10 47 33.385  +09 09 45.57  25.0r 15FV403   568  C~2Zrj      
2015 03  17.37593  10 47 33.061  +09 09 47.25        15FV403   568  C~2Zrj      
2015 03  17.49165  10 47 32.647  +09 09 49.62        15FV403   568  C~2Zrj      
2015 04  18.05152  10 45 58.799  +09 17 55.29        15FV403   304  C~2Zrj      
2015 04  18.15984  10 45 58.594  +09 17 56.29  25.2r 15FV403   304  C~2Zrj      
2015 04  19.06583  10 45 56.527  +09 18 06.27        15FV403   304  C~2Zrj      
2015 06  20.26708  10 45 34.710  +09 17 00.63  25.1r 15FV403   568  C~2Zrj      
2015 06  21.28231  10 45 36.418  +09 16 47.10        15FV403   568  C~2Zrj      
2016 03  08.19476  10 50 41.849  +08 40 30.06        15FV403   304  C~2Zrj      
2016 03  09.19988  10 50 38.220  +08 40 49.89        15FV403   304  C~2Zrj      
2016 03  09.26598  10 50 37.990  +08 40 51.13        15FV403   304  C~2Zrj      

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    -0.07       0.00     0.05
     2   0.0003     -5.08     0.09      -0.26     0.01
     3   0.0006    -11.65    -0.05      -0.38     0.16
     4   0.0870  -1481.68    -0.44     -75.44    -0.13
     5   0.0873  -1484.87     0.33     -75.66    -0.02
     6   0.0898  -1516.97     0.18     -77.96     0.09
     7   0.2601  -1791.37    -0.08    -260.52    -0.08
     8   0.2628  -1762.85     0.04    -263.53    -0.15
     9   0.9772   3250.14     0.10    -565.53     0.24
    10   0.9799   3192.82    -0.13    -567.64    -0.08
    11   0.9801   3189.19     0.04    -567.79    -0.09

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.

15FV403    quality flag:2

Type:       SCATNEAR      2:1E  SCATNEAR

axisobj        47.365    47.955    47.208
ecceobj         0.195     0.222     0.189
incobj         11.951    11.953    11.951
qmin           36.685    36.847    37.528
qmax           58.804    59.773    57.380
amean          47.402    47.797    47.235
amin           46.952    47.140    46.805
amax           48.059    48.538    47.762
emean           0.202     0.205     0.187
emin            0.179     0.180     0.171
emax            0.226     0.232     0.204
imean          12.264    13.000    12.293
imin           11.276    12.361    11.733
imax           13.131    13.889    12.868
excite_mean     0.293     0.304     0.283
fracstop        1.000     1.000     1.000
cjmean          3.036     3.032     3.042

libcent 0      -180.0     179.8    -180.0
libamp  0      -180.0     160.0    -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       175.8     157.2     172.3
kozaiamp        179.9     179.9     180.0