Orbit Fit and Astrometric record for 15KM199

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: 15KM199   
# Created Fri Dec  3 02:13:25 2021
# Orbit generated from Bernstein formalism
# Fitting     27 observations of     27
# Arc:   2.00y
# First observation: 2014/05/29
#  Last observation: 2016/05/30
Preliminary a, adot, b, bdot, g, gdot:
   0.000176   0.027727  -0.000013  -0.002004   0.026483   0.000000
# Chi-squared of fit:    19.16 DOF:     48 RMS:  0.15
# Min/Max residuals:    -0.62    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.649395E-05  2.817940E-02 -2.716261E-07 -2.042034E-03  2.731768E-02  4.933195E-03
# Covariance matrix:
  3.6112E-13 -4.9713E-13 -8.0729E-15  2.2269E-14 -1.7722E-13 -5.1983E-12
 -4.9713E-13  1.0152E-12  2.0364E-14 -5.7662E-14  3.9074E-13  1.3256E-11
 -8.0729E-15  2.0364E-14  2.3353E-13 -1.7198E-13  1.1869E-14  3.2755E-13
  2.2269E-14 -5.7662E-14 -1.7198E-13  1.6789E-13 -2.7901E-14 -9.0392E-13
 -1.7722E-13  3.9074E-13  1.1869E-14 -2.7901E-14  4.4349E-13  7.1759E-12
 -5.1983E-12  1.3256E-11  3.2755E-13 -9.0392E-13  7.1759E-12  2.1095E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    5.230384 -127.228923   -0.263729    0.089366   -0.975616  2456806.847808
# Heliocentric elements and errors
Epoch:              2456800.5000  =  2014/05/23
Mean Anomaly:           64.52831 +/-     0.037
Argument of Peri:       43.60977 +/-     0.023
Long of Asc Node:      103.76146 +/-     0.005
Inclination:             6.58176 +/-     0.001
Eccentricity:         0.18740820 +/-    0.0005
Semi-Major Axis:     39.50878389 +/-    0.0081
Time of Perihelion: 2440541.7656 +/-       7.8
Perihelion:          32.10451366 +/-    0.0215
Aphelion:            46.91305412 +/-    0.0226
Period (y)              248.3412 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.43873128 +/-    0.0005
Ecliptic Y          -29.96365403 +/-    0.0007
Ecliptic Z            3.33710413 +/-    0.0001
Ecliptic XDOT         0.00193429 +/-    0.0000
Ecliptic YDOT        -0.00211917 +/-    0.0000
Ecliptic ZDOT        -0.00015861 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.58262216 +/-    0.0007
Geocenter to KBO     36.60632505 +/-    0.0009
# Hcoef:  9.18

The following table shows the complete astrometric record for 15KM199. 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 (15KM199) followed by the observatory code and reference code for the source of the astrometry.

2014 05  29.34703  15 26 55.597  -13 24 03.18  25.1r 15KM199   568  C~4n9s      
2014 05  29.38590  15 26 55.396  -13 24 02.16  23.6r 15KM199   568  C~4n9s      
2014 05  29.42474  15 26 55.190  -13 24 01.70  25.4r 15KM199   568  C~4n9s      
2014 05  31.37090  15 26 45.236  -13 23 31.72        15KM199   568  C~4n9s      
2015 02  20.65666  15 38 52.447  -14 19 36.98  26.2r 15KM199   568  C~4n9s      
2015 03  19.57074  15 38 29.367  -14 15 11.79  25.2r 15KM199   568  C~4n9s      
2015 03  21.62951  15 38 24.525  -14 14 42.47  24.5r 15KM199   568  C~4n9s      
2015 04  12.52910  15 37 10.654  -14 08 37.82  24.9r 15KM199   568  C~4n9s      
2015 04  18.51079  15 36 44.474  -14 06 46.64  24.9r 15KM199   568  C~4n9t      
2015 05  17.38343  15 34 17.868  -13 57 45.92  24.8r 15KM199   568  C~4n9t      
2015 05  17.42514  15 34 17.641  -13 57 45.14  25.6r 15KM199   568  C~4n9t      
2015 05  24.36910  15 33 40.695  -13 55 46.29  24.7r 15KM199   568  C~4n9t      
2015 05  24.41533  15 33 40.444  -13 55 45.51  25.0r 15KM199   568  C~4n9t      
2015 05  24.45620  15 33 40.212  -13 55 45.06  24.6r 15KM199   568  C~4n9t      
2015 05  26.44379  15 33 29.740  -13 55 12.48  25.1r 15KM199   568  C~4n9t      
2015 06  18.34328  15 31 37.778  -13 50 08.72  24.3r 15KM199   568  C~4n9t      
2015 06  18.38434  15 31 37.602  -13 50 08.37  23.5r 15KM199   568  C~4n9t      
2015 06  21.35896  15 31 24.871  -13 49 40.09  25.2r 15KM199   568  C~4n9t      
2015 07  10.39102  15 30 18.031  -13 47 54.06  25.1r 15KM199   568  C~4n9t      
2015 07  18.31678  15 29 58.931  -13 47 50.82  25.1r 15KM199   568  C~4n9t      
2016 02  06.62508  15 44 37.635  -14 48 12.01  24.8w 15KM199   568  C~4n9t      
2016 02  12.61062  15 44 49.490  -14 48 09.70  25.5w 15KM199   568  C~4n9t      
2016 03  15.61859  15 44 46.745  -14 44 21.83  25.2w 15KM199   568  C~4n9t      
2016 04  03.55474  15 43 56.142  -14 39 49.58  25.5w 15KM199   568  C~4n9t      
2016 04  08.60428  15 43 37.496  -14 38 25.58  25.1w 15KM199   568  C~4n9t      
2016 05  04.41287  15 41 38.402  -14 30 42.48  25.2w 15KM199   568  C~4n9t      
2016 05  30.47415  15 39 20.756  -14 23 25.58        15KM199   568  C~4n9t      

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    -0.04       0.00    -0.19
     2   0.0001     -3.09    -0.10       0.26     0.22
     3   0.0002     -6.12    -0.09      -0.04     0.06
     4   0.0055   -154.27     0.16      -6.93    -0.09
     5   0.7319  10945.64    -0.62    -715.77     0.22
     6   0.8055  10556.07     0.26    -536.76    -0.05
     7   0.8112  10480.55     0.11    -524.84     0.02
     8   0.8711   9347.94    -0.06    -424.31     0.20
     9   0.8875   8950.83     0.20    -406.64     0.16
    10   0.9666   6746.80     0.02    -390.85    -0.21
    11   0.9667   6743.40     0.00    -390.88    -0.17
    12   0.9857   6192.21     0.17    -404.77    -0.01
    13   0.9858   6188.47     0.13    -404.89     0.00
    14   0.9859   6185.08     0.02    -405.27    -0.26
    15   0.9914   6029.12     0.02    -410.35    -0.03
    16   1.0541   4372.58    -0.16    -509.76    -0.04
    17   1.0542   4370.01    -0.04    -510.05    -0.07
    18   1.0623   4183.18    -0.04    -527.64     0.03
    19   1.1144   3212.75     0.03    -661.85     0.11
    20   1.1361   2942.09     0.09    -726.65    -0.04
    21   1.6928  16241.62     0.24   -1222.20     0.08
    22   1.7091  16409.48    -0.05   -1180.49     0.03
    23   1.7968  16317.94     0.01    -967.09    -0.08
    24   1.8486  15536.21     0.04    -870.14     0.10
    25   1.8624  15251.97    -0.01    -850.55     0.01
    26   1.9331  13454.13    -0.04    -799.54     0.09
    27   2.0045  11400.56    -0.27    -841.52    -0.11

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.

15KM199    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.245    39.268    39.221
ecceobj         0.183     0.184     0.182
incobj          6.577     6.577     6.577
qmin           31.507    31.465    31.531
qmax           47.887    47.935    47.734
amean          39.456    39.456    39.456
amin           39.081    39.065    39.092
amax           39.910    39.939    39.873
emean           0.184     0.185     0.183
emin            0.167     0.169     0.166
emax            0.201     0.202     0.199
imean           4.844     4.846     4.846
imin            4.358     4.364     4.353
imax            5.529     5.499     5.547
excite_mean     0.203     0.203     0.202
fracstop        1.000     1.000     1.000
cjmean          3.005     3.005     3.006

libcent 0       180.3     179.4     179.4
libamp  0        51.8      64.4      39.7
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       180.7     177.7     181.1
kozaiamp        180.0     180.0     180.0