Orbit Fit and Astrometric record for 15KL175

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: 15KL175   
# Created Sat Mar 30 01:18:04 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     34 observations of     34
# Arc:   6.21y
# First observation: 2015/02/25
#  Last observation: 2021/05/12
# Chi-squared of fit:     4.50 DOF:     62 RMS:  0.06
# Min/Max residuals:    -0.18    0.14
# Exact a, adot, b, bdot, g, gdot:
  1.596751E-05  2.450672E-02 -2.800829E-07 -1.974567E-04  2.427106E-02 -1.970275E-03
# Covariance matrix:
  1.5925E-13 -2.6999E-14 -5.4262E-15 -2.0419E-16  8.4369E-14 -9.0003E-14
 -2.6999E-14  1.2319E-13 -5.0700E-15  1.0779E-15  7.0907E-14  8.2520E-13
 -5.4262E-15 -5.0700E-15  6.9131E-14 -1.9309E-14 -9.0263E-15 -3.6285E-14
 -2.0419E-16  1.0779E-15 -1.9309E-14  1.3992E-14  5.7314E-16  8.1900E-15
  8.4369E-14  7.0907E-14 -9.0263E-15  5.7314E-16  1.3464E-13  5.0450E-13
 -9.0003E-14  8.2520E-13 -3.6285E-14  8.1900E-15  5.0450E-13  6.2466E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    8.681094 -126.364497    0.962295    0.033163   -0.216372  2457079.141088
# Heliocentric elements and errors
Epoch:              2457078.5000  =  2015/02/25
Mean Anomaly:          313.14551 +/-     0.022
Argument of Peri:      150.49562 +/-     0.032
Long of Asc Node:      140.40452 +/-     0.002
Inclination:             8.63734 +/-     0.000
Eccentricity:         0.12665289 +/-    0.0001
Semi-Major Axis:     44.88139031 +/-    0.0028
Time of Perihelion: 2471372.2624 +/-      11.0
Perihelion:          39.19703244 +/-    0.0048
Aphelion:            50.56574819 +/-    0.0052
Period (y)              300.6822 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -25.05644140 +/-    0.0004
Ecliptic Y          -32.40329445 +/-    0.0005
Ecliptic Z            6.21871476 +/-    0.0001
Ecliptic XDOT         0.00235078 +/-    0.0000
Ecliptic YDOT        -0.00147050 +/-    0.0000
Ecliptic ZDOT        -0.00005547 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.43038332 +/-    0.0004
Geocenter to KBO     41.20141072 +/-    0.0006
# Hcoef:  7.77

The following table shows the complete astrometric record for 15KL175. 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 (15KL175) followed by the observatory code and reference code for the source of the astrometry.

2015 02  25.64031  15 33 45.715  -10 15 46.45  23.8r 15KL175   568  C~2nvh      
2015 03  19.63268  15 33 21.021  -10 09 45.42  24.2r 15KL175   568  C~2nvh      
2015 03  22.55230  15 33 14.485  -10 08 49.32  23.9r 15KL175   568  C~2nvh      
2015 04  13.56418  15 32 04.713  -10 01 14.21  23.8r 15KL175   568  C~2nvh      
2015 04  13.60528  15 32 04.549  -10 01 13.37  24.0r 15KL175   568  C~2nvh      
2015 04  18.57429  15 31 44.638  -09 59 27.85  24.4r 15KL175   568  C~2nvh      
2015 05  21.33472  15 29 14.149  -09 48 55.34  23.9r 15KL175   568  C~2nvh      
2015 05  21.37588  15 29 13.938  -09 48 54.63  23.8r 15KL175   568  C~2nvh      
2015 05  21.41717  15 29 13.741  -09 48 53.99  23.8r 15KL175   568  C~2nvh      
2015 05  22.49362  15 29 08.630  -09 48 36.76  23.7r 15KL175   568  C~2nvh      
2015 05  22.51002  15 29 08.543  -09 48 36.54  23.7r 15KL175   568  C~2nvh      
2015 06  20.37343  15 27 02.903  -09 43 10.50  24.1r 15KL175   568  C~2nvh      
2015 06  23.43462  15 26 51.692  -09 42 53.48  23.8r 15KL175   568  C~2nvh      
2015 07  11.31733  15 25 58.490  -09 42 30.43  23.9r 15KL175   568  C~2nvh      
2015 07  18.37775  15 25 44.078  -09 42 57.79  23.8r 15KL175   568  C~2nvh      
2015 08  11.34850  15 25 27.667  -09 47 01.42  23.9r 15KL175   568  C~2nvh      
2016 02  05.63082  15 38 57.480  -10 39 43.69  24.3w 15KL175   568  C~2nvh      
2016 03  15.57378  15 39 03.071  -10 31 42.75  24.2w 15KL175   568  C~2nvh      
2016 03  17.59269  15 38 59.423  -10 31 06.39  24.3w 15KL175   568  C~2nvh      
2016 04  03.51011  15 38 15.640  -10 25 37.26  24.2w 15KL175   568  C~2nvh      
2016 04  08.55978  15 37 58.451  -10 23 53.22  24.2w 15KL175   568  C~2nvh      
2016 04  29.44139  15 36 32.658  -10 16 43.96  23.8w 15KL175   568  C~2nvh      
2016 05  04.37647  15 36 09.926  -10 15 07.33  24.3w 15KL175   568  C~2nvh      
2016 05  30.49437  15 34 05.858  -10 07 55.01  23.8w 15KL175   568  C~2nvh      
2016 07  03.35430  15 31 52.350  -10 03 48.48  24.0w 15KL175   568  C~2nvh      
2016 07  05.33811  15 31 46.578  -10 03 47.61  23.9w 15KL175   568  C~2nvh      
2017 07  28.29182  15 36 37.675  -10 26 36.12  24.2w 15KL175   568  C~2nvh      
2017 07  29.35266  15 36 36.563  -10 26 45.51        15KL175   568  C~2nvh      
2017 08  19.26557  15 36 35.961  -10 31 18.10  24.3w 15KL175   568  C~2nvh      
2017 08  25.27346  15 36 43.419  -10 33 03.55  24.1w 15KL175   568  C~2nvh      
2017 08  26.25391  15 36 44.955  -10 33 21.86  24.5w 15KL175   568  C~2nvh      
2021 05  12.322950 16 04 26.645  -11 55 07.66  24.0G 15KL175   G37  C~4pVs      
2021 05  12.387770 16 04 26.329  -11 55 06.30        15KL175   G37  C~4pVs      
2021 05  12.419350 16 04 26.164  -11 55 05.85        15KL175   G37  C~4pVs      

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     0.03
     2   0.0602      0.00    -0.03       0.00     0.03
     3   0.0682      0.00    -0.03       0.00     0.02
     4   0.1285      0.00     0.01       0.00     0.11
     5   0.1286      0.00    -0.01       0.00     0.07
     6   0.1422      0.00     0.08       0.00    -0.10
     7   0.2319      0.00     0.09       0.00    -0.03
     8   0.2320      0.00    -0.09       0.00     0.02
     9   0.2321      0.00    -0.05       0.00    -0.01
    10   0.2351      0.00     0.06       0.00    -0.01
    11   0.2351      0.00    -0.06       0.00    -0.05
    12   0.3141      0.00    -0.10       0.00     0.02
    13   0.3225      0.00    -0.04       0.00     0.08
    14   0.3715      0.00     0.09       0.00     0.03
    15   0.3908      0.00     0.01       0.00     0.03
    16   0.4564      0.00     0.05       0.00     0.01
    17   0.9445      0.00     0.03       0.00     0.10
    18   1.0512      0.00    -0.06       0.00    -0.11
    19   1.0567      0.00     0.01       0.00    -0.03
    20   1.1030      0.00    -0.03       0.00    -0.06
    21   1.1168      0.00    -0.06       0.00     0.01
    22   1.1740      0.00     0.07       0.00    -0.06
    23   1.1875      0.00     0.10       0.00    -0.04
    24   1.2590      0.00    -0.04       0.00     0.05
    25   1.3517      0.00    -0.04       0.00    -0.06
    26   1.3571      0.00     0.01       0.00    -0.00
    27   2.4193      0.00     0.00       0.00    -0.10
    28   2.4222      0.00     0.01       0.00     0.06
    29   2.4795      0.00    -0.10       0.00    -0.08
    30   2.4959      0.00     0.03       0.00     0.06
    31   2.4986      0.00    -0.04       0.00     0.03
    32   6.2086      0.00     0.06       0.00    -0.18
    33   6.2088      0.00     0.06       0.00     0.14
    34   6.2088      0.00    -0.11       0.00     0.08

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.

15KL175    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.532    44.532    44.532
ecceobj         0.126     0.126     0.126
incobj          8.641     8.641     8.641
qmin           38.526    38.524    38.528
qmax           51.539    51.516    51.533
amean          44.874    44.874    44.874
amin           44.488    44.506    44.506
amax           45.285    45.282    45.288
emean           0.124     0.124     0.124
emin            0.110     0.110     0.110
emax            0.138     0.138     0.138
imean           7.528     7.528     7.528
imin            6.990     6.989     6.990
imax            8.211     8.211     8.211
excite_mean     0.181     0.181     0.181
fracstop        1.000     1.000     1.000
cjmean          3.073     3.073     3.073

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       185.2     185.1     185.1
kozaiamp        179.9     180.0     180.0