Orbit Fit and Astrometric record for 15KD175

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: 15KD175   
# Created Mon Dec  6 02:13:23 2021
# Orbit generated from Bernstein formalism
# Fitting     34 observations of     34
# Arc:   3.26y
# First observation: 2014/05/29
#  Last observation: 2017/08/31
Preliminary a, adot, b, bdot, g, gdot:
   0.000241   0.024971   0.000116   0.011947   0.026011   0.000000
# Chi-squared of fit:    14.83 DOF:     62 RMS:  0.12
# Min/Max residuals:    -0.40    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.596244E-05  2.527862E-02  7.318572E-06  1.209218E-02  2.619471E-02 -3.298220E-03
# Covariance matrix:
  2.3812E-13 -2.7555E-13  4.9302E-14 -9.9151E-14 -9.7068E-14 -2.7826E-12
 -2.7555E-13  5.2782E-13 -1.1808E-13  2.3669E-13  1.6295E-13  6.7325E-12
  4.9302E-14 -1.1808E-13  1.7706E-13 -1.3823E-13 -3.9779E-14 -1.6995E-12
 -9.9151E-14  2.3669E-13 -1.3823E-13  1.7904E-13  8.0905E-14  3.4045E-12
 -9.7068E-14  1.6295E-13 -3.9779E-14  8.0905E-14  1.5871E-13  2.1666E-12
 -2.7826E-12  6.7325E-12 -1.6995E-12  3.4045E-12  2.1666E-12  9.7069E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    6.631210 -127.622195   -0.270512    0.112976   -0.971302  2456806.851688
# Heliocentric elements and errors
Epoch:              2456800.5000  =  2014/05/23
Mean Anomaly:          329.97523 +/-     0.060
Argument of Peri:       57.78254 +/-     0.097
Long of Asc Node:      219.48245 +/-     0.000
Inclination:            26.24367 +/-     0.000
Eccentricity:         0.18405808 +/-    0.0003
Semi-Major Axis:     45.97250770 +/-    0.0046
Time of Perihelion: 2466296.1097 +/-      18.8
Perihelion:          37.51089643 +/-    0.0122
Aphelion:            54.43411898 +/-    0.0128
Period (y)              311.7134 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -23.53248691 +/-    0.0003
Ecliptic Y          -30.97301968 +/-    0.0005
Ecliptic Z            4.40879003 +/-    0.0001
Ecliptic XDOT         0.00238555 +/-    0.0000
Ecliptic YDOT        -0.00122970 +/-    0.0000
Ecliptic ZDOT         0.00121573 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.14771152 +/-    0.0004
Geocenter to KBO     38.17564170 +/-    0.0006
# Hcoef:  8.79

The following table shows the complete astrometric record for 15KD175. 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 (15KD175) followed by the observatory code and reference code for the source of the astrometry.

2014 05  29.35091  15 26 47.760  -11 56 48.55  24.3r 15KD175   568  C~2nvg      
2014 05  29.38978  15 26 47.581  -11 56 47.85  24.3r 15KD175   568  C~2nvg      
2014 05  30.45852  15 26 42.384  -11 56 23.79  24.5r 15KD175   568  C~2nvg      
2014 06  21.35408  15 25 06.566  -11 49 33.87  24.6r 15KD175   568  C~2nvg      
2014 06  21.39293  15 25 06.405  -11 49 33.40  25.3r 15KD175   568  C~2nvg      
2015 03  19.61637  15 38 12.240  -12 08 41.61  24.9r 15KD175   568  C~2nvg      
2015 03  22.53501  15 38 05.777  -12 07 29.93  24.5r 15KD175   568  C~2nvg      
2015 04  13.54773  15 36 54.680  -11 57 47.57  24.2r 15KD175   568  C~2nvg      
2015 04  13.58882  15 36 54.503  -11 57 46.20  24.3r 15KD175   568  C~2nvg      
2015 04  18.55227  15 36 33.911  -11 55 29.20  24.7r 15KD175   568  C~2nvg      
2015 05  21.31829  15 33 56.061  -11 40 58.41  24.3r 15KD175   568  C~2nvg      
2015 05  21.35947  15 33 55.854  -11 40 57.64  24.3r 15KD175   568  C~2nvg      
2015 05  21.40058  15 33 55.642  -11 40 56.66  24.9r 15KD175   568  C~2nvg      
2015 05  22.47722  15 33 50.221  -11 40 30.91  24.7r 15KD175   568  C~2nvg      
2015 05  25.46768  15 33 35.278  -11 39 20.72  24.8r 15KD175   568  C~2nvg      
2015 06  20.35717  15 31 36.642  -11 31 02.93  24.7r 15KD175   568  C~2nvg      
2015 06  20.39803  15 31 36.474  -11 31 02.28  24.8r 15KD175   568  C~2nvg      
2015 06  23.41823  15 31 24.644  -11 30 19.27  24.5r 15KD175   568  C~2nvg      
2015 07  11.29135  15 30 27.581  -11 27 18.96  24.9r 15KD175   568  C~2nvg      
2015 07  18.36074  15 30 11.991  -11 26 44.32  25.0r 15KD175   568  C~2nvg      
2016 02  05.65108  15 44 29.399  -12 01 49.91  25.3w 15KD175   568  C~2nvg      
2016 02  11.66311  15 44 41.949  -12 00 37.34  25.3w 15KD175   568  C~2nvg      
2016 02  12.60253  15 44 43.578  -12 00 24.66  25.1w 15KD175   568  C~2nvg      
2016 03  17.61396  15 44 40.017  -11 49 26.19  24.8w 15KD175   568  C~2nvg      
2016 04  03.53046  15 43 56.426  -11 42 10.76  25.2w 15KD175   568  C~2nvg      
2016 04  08.58000  15 43 38.899  -11 39 53.26  26.0w 15KD175   568  C~2nvg      
2016 04  29.45756  15 42 10.181  -11 30 17.83  24.7w 15KD175   568  C~2nvg      
2016 05  04.39265  15 41 46.439  -11 28 05.20  24.3w 15KD175   568  C~2nvg      
2016 05  30.47009  15 39 35.958  -11 17 33.06  24.2w 15KD175   568  C~2nvg      
2016 07  04.30222  15 37 10.348  -11 08 46.90  25.1w 15KD175   568  C~2nvg      
2016 07  05.37053  15 37 07.027  -11 08 38.09  24.8w 15KD175   568  C~2nvg      
2017 08  20.26151  15 42 40.745  -10 50 08.18  24.7w 15KD175   568  C~2nvg      
2017 08  26.27332  15 42 48.785  -10 51 17.92  25.6w 15KD175   568  C~2nvg      
2017 08  31.25681  15 42 58.241  -10 52 24.34  24.5w 15KD175   568  C~2nvg      

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    -0.14       0.00    -0.00
     2   0.0001     -2.72     0.08       0.03    -0.12
     3   0.0030    -82.57    -0.40       4.40    -0.03
     4   0.0630  -1546.84     0.22      51.24     0.18
     5   0.0631  -1549.25     0.12      51.10     0.03
     6   0.8057   9920.94    -0.01    1751.51    -0.21
     7   0.8136   9811.57    -0.07    1798.59     0.09
     8   0.8739   8657.41     0.03    2115.16    -0.04
     9   0.8740   8654.55    -0.15    2115.87     0.16
    10   0.8876   8327.78     0.12    2176.50    -0.19
    11   0.9773   5865.57     0.05    2463.21     0.24
    12   0.9774   5862.43     0.15    2463.22     0.04
    13   0.9775   5859.17     0.12    2463.42     0.03
    14   0.9805   5775.60    -0.00    2469.11    -0.04
    15   0.9887   5545.43    -0.03    2484.01    -0.04
    16   1.0596   3732.38     0.09    2542.68    -0.06
    17   1.0597   3729.82     0.07    2542.71    -0.02
    18   1.0679   3550.63    -0.12    2541.94    -0.04
    19   1.1169   2692.93    -0.07    2511.47     0.11
    20   1.1362   2462.18     0.11    2488.84    -0.04
    21   1.6901  15221.56     0.10    3459.26    -0.17
    22   1.7065  15384.75     0.08    3573.11    -0.05
    23   1.7091  15405.18     0.13    3591.06     0.03
    24   1.8022  15200.52    -0.21    4221.14    -0.02
    25   1.8485  14472.87     0.09    4495.75    -0.01
    26   1.8624  14189.05    -0.14    4569.34     0.05
    27   1.9195  12780.69    -0.07    4822.96     0.15
    28   1.9330  12408.84     0.07    4869.66    -0.08
    29   2.0044  10388.43    -0.03    5029.49     0.08
    30   2.0998   8177.21    -0.07    5028.63    -0.04
    31   2.1027   8127.55    -0.12    5025.46     0.00
    32   3.2277  12653.42     0.04    7277.50    -0.06
    33   3.2441  12785.47    -0.22    7237.55    -0.00
    34   3.2578  12937.11     0.22    7205.74     0.07

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.

15KD175    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.738    45.749    45.728
ecceobj         0.183     0.184     0.183
incobj         26.320    26.320    26.320
qmin           36.764    36.708    36.731
qmax           55.787    55.889    55.801
amean          46.069    46.071    46.054
amin           45.676    45.674    45.666
amax           46.537    46.527    46.496
emean           0.184     0.184     0.183
emin            0.168     0.169     0.167
emax            0.200     0.201     0.200
imean          27.042    27.038    27.035
imin           26.602    26.596    26.592
imax           27.387    27.386    27.387
excite_mean     0.490     0.490     0.490
fracstop        1.000     1.000     1.000
cjmean          2.819     2.819     2.819

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       171.4     171.4     171.2
kozaiamp        180.0     179.9     179.9