Orbit Fit and Astrometric record for 15KN174

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: 15KN174   
# Created Tue Nov 30 02:13:26 2021
# Orbit generated from Bernstein formalism
# Fitting     39 observations of     39
# Arc:   3.24y
# First observation: 2014/05/29
#  Last observation: 2017/08/26
Preliminary a, adot, b, bdot, g, gdot:
   0.000270   0.024519  -0.000066  -0.003449   0.024912   0.000000
# Chi-squared of fit:     9.67 DOF:     72 RMS:  0.09
# Min/Max residuals:    -0.18    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.616715E-05  2.508074E-02 -2.561240E-06 -3.566573E-03  2.493729E-02  4.142651E-03
# Covariance matrix:
  1.7798E-13 -1.9673E-13 -1.2629E-14  2.3894E-14 -6.9295E-14 -1.9739E-12
 -1.9673E-13  3.8282E-13  3.1558E-14 -6.0770E-14  1.3317E-13  4.9542E-12
 -1.2629E-14  3.1558E-14  1.2319E-13 -6.4927E-14  1.1376E-14  4.6189E-13
  2.3894E-14 -6.0770E-14 -6.4927E-14  5.4009E-14 -1.8829E-14 -8.9542E-13
 -6.9295E-14  1.3317E-13  1.1376E-14 -1.8829E-14  1.6416E-13  1.7235E-12
 -1.9739E-12  4.9542E-12  4.6189E-13 -8.9542E-13  1.7235E-12  7.2632E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    7.886078 -127.643222   -0.270935    0.134204   -0.968480  2456806.855568
# Heliocentric elements and errors
Epoch:              2456800.5000  =  2014/05/23
Mean Anomaly:           49.30649 +/-     0.015
Argument of Peri:       66.98033 +/-     0.034
Long of Asc Node:       95.85147 +/-     0.002
Inclination:            11.18799 +/-     0.000
Eccentricity:         0.19770905 +/-    0.0003
Semi-Major Axis:     45.71989393 +/-    0.0075
Time of Perihelion: 2441335.2199 +/-       2.6
Perihelion:          36.68065729 +/-    0.0169
Aphelion:            54.75913056 +/-    0.0181
Period (y)              309.1477 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.64345686 +/-    0.0004
Ecliptic Y          -32.39077856 +/-    0.0005
Ecliptic Z            5.50191089 +/-    0.0001
Ecliptic XDOT         0.00186716 +/-    0.0000
Ecliptic YDOT        -0.00208465 +/-    0.0000
Ecliptic ZDOT        -0.00032534 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.06986152 +/-    0.0005
Geocenter to KBO     40.10059212 +/-    0.0007
# Hcoef:  8.04

The following table shows the complete astrometric record for 15KN174. 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 (15KN174) followed by the observatory code and reference code for the source of the astrometry.

2014 05  29.35479  15 27 58.905  -10 43 33.23  24.2r 15KN174   568  C~2lVJ      
2014 05  29.39367  15 27 58.736  -10 43 32.86  24.4r 15KN174   568  C~2lVJ      
2014 05  29.43250  15 27 58.541  -10 43 32.31        15KN174   568  C~2lVJ      
2014 05  30.46242  15 27 53.692  -10 43 19.70  23.6r 15KN174   568  C~2lVJ      
2014 06  21.35796  15 26 20.228  -10 40 11.86  24.3r 15KN174   568  C~2lVJ      
2014 06  21.39681  15 26 20.067  -10 40 11.76  24.4r 15KN174   568  C~2lVJ      
2014 07  19.27427  15 25 02.668  -10 40 33.65  23.9r 15KN174   568  C~2lVJ      
2015 02  25.61255  15 38 37.925  -11 40 46.19  24.1r 15KN174   568  C~2lVK      
2015 03  19.61637  15 38 14.493  -11 36 07.84  24.1r 15KN174   568  C~2lVK      
2015 04  13.54773  15 36 58.460  -11 29 02.28  24.8r 15KN174   568  C~2lVK      
2015 04  13.58882  15 36 58.292  -11 29 01.44  24.3r 15KN174   568  C~2lVK      
2015 04  18.55227  15 36 38.292  -11 27 31.17  24.1r 15KN174   568  C~2lVK      
2015 05  21.31829  15 34 05.647  -11 18 17.67  24.1r 15KN174   568  C~2lVK      
2015 05  21.35947  15 34 05.457  -11 18 17.34  24.3r 15KN174   568  C~2lVK      
2015 05  21.40058  15 34 05.243  -11 18 16.73  24.6r 15KN174   568  C~2lVK      
2015 05  22.47722  15 34 00.022  -11 18 01.39  23.9r 15KN174   568  C~2lVK      
2015 05  25.46768  15 33 45.589  -11 17 20.29  23.9r 15KN174   568  C~2lVK      
2015 06  20.35717  15 31 50.745  -11 13 10.98  24.6r 15KN174   568  C~2lVK      
2015 06  20.39803  15 31 50.589  -11 13 10.78  24.2r 15KN174   568  C~2lVK      
2015 06  23.41822  15 31 39.101  -11 12 56.11  24.2r 15KN174   568  C~2lVK      
2015 07  11.29135  15 30 43.246  -11 12 39.61  24.3r 15KN174   568  C~2lVK      
2015 07  18.36074  15 30 27.742  -11 13 07.10  23.6r 15KN174   568  C~2lVK      
2016 04  03.53046  15 42 55.682  -12 03 33.27  24.4w 15KN174   568  C~2lVK      
2016 04  08.58000  15 42 38.558  -12 02 07.47  24.5w 15KN174   568  C~2lVK      
2016 04  29.45756  15 41 12.507  -11 56 04.98  24.6w 15KN174   568  C~2lVK      
2016 04  29.46565  15 41 12.467  -11 56 04.78  24.3w 15KN174   568  C~2lVK      
2016 05  04.39265  15 40 49.599  -11 54 41.98  24.2w 15KN174   568  C~2lVK      
2016 05  04.40073  15 40 49.551  -11 54 41.71  24.2w 15KN174   568  C~2lVK      
2016 05  30.46605  15 38 44.044  -11 48 24.18  24.2w 15KN174   568  C~2lVK      
2016 07  03.36648  15 36 26.573  -11 44 43.74  24.4w 15KN174   568  C~2lVK      
2016 07  04.28198  15 36 23.739  -11 44 43.27  24.4w 15KN174   568  C~2lVK      
2016 07  04.30222  15 36 23.677  -11 44 43.15  24.6w 15KN174   568  C~2lVK      
2016 07  05.35027  15 36 20.509  -11 44 43.17  24.3w 15KN174   568  C~2lVK      
2016 07  05.37053  15 36 20.454  -11 44 43.10  24.2w 15KN174   568  C~2lVK      
2017 03  30.57730  15 48 30.588  -12 35 44.05  24.7w 15KN174   568  C~2lVK      
2017 07  28.28692  15 40 53.275  -12 17 43.37  24.2w 15KN174   568  C~2lVK      
2017 07  28.30120  15 40 53.269  -12 17 43.48  24.1w 15KN174   568  C~2lVK      
2017 08  20.25685  15 40 49.275  -12 22 18.28  24.7w 15KN174   568  C~2lVK      
2017 08  26.26800  15 40 56.423  -12 23 58.44  24.6w 15KN174   568  C~2lVK      

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    -0.05       0.00     0.06
     2   0.0001     -2.50     0.22      -0.26     0.02
     3   0.0002     -5.43     0.08      -0.44     0.05
     4   0.0030    -77.79    -0.12      -5.89    -0.05
     5   0.0630  -1458.97     0.04    -165.48    -0.05
     6   0.0631  -1461.30    -0.12    -165.97    -0.17
     7   0.1394  -2560.90     0.01    -471.35     0.12
     8   0.7454   9962.65     0.05   -1046.62    -0.09
     9   0.8056   9560.99    -0.10    -858.22     0.04
    10   0.8739   8371.92     0.03    -712.30    -0.06
    11   0.8740   8369.31    -0.06    -712.07     0.01
    12   0.8876   8061.74     0.07    -694.99    -0.10
    13   0.9773   5747.24    -0.17    -699.27     0.16
    14   0.9774   5744.44     0.08    -699.63    -0.04
    15   0.9775   5741.24    -0.08    -699.80    -0.06
    16   0.9805   5662.96    -0.02    -703.53     0.00
    17   0.9887   5446.87    -0.04    -715.13     0.03
    18   1.0596   3746.60    -0.10    -884.47     0.02
    19   1.0597   3744.32    -0.00    -884.84     0.02
    20   1.0679   3576.78    -0.00    -911.89     0.04
    21   1.1169   2775.70     0.03   -1096.98    -0.04
    22   1.1362   2561.24     0.11   -1179.55     0.18
    23   1.8485  13976.12    -0.00   -1480.98    -0.03
    24   1.8624  13710.59     0.10   -1456.47     0.05
    25   1.9195  12392.79    -0.00   -1401.30     0.05
    26   1.9195  12392.17    -0.05   -1401.24     0.10
    27   1.9330  12045.27     0.12   -1400.06    -0.09
    28   1.9330  12044.52    -0.04   -1399.97     0.02
    29   2.0044  10159.66    -0.02   -1470.52    -0.03
    30   2.0972   8142.91     0.28   -1739.54    -0.01
    31   2.0997   8102.34    -0.00   -1749.09    -0.07
    32   2.0998   8101.42    -0.01   -1749.19     0.04
    33   2.1027   8056.20    -0.09   -1760.39    -0.14
    34   2.1027   8055.39    -0.01   -1760.52    -0.05
    35   2.8370  19232.66    -0.01   -2223.64     0.05
    36   3.1648  12426.06    -0.12   -2732.11     0.11
    37   3.1648  12426.00     0.06   -2732.24     0.15
    38   3.2277  12434.23    -0.10   -3013.66    -0.18
    39   3.2441  12560.17     0.07   -3086.44    -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.

15KN174    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        45.374    45.395    45.352
ecceobj         0.192     0.193     0.191
incobj         11.182    11.182    11.182
qmin           36.091    36.072    35.836
qmax           55.968    55.971    56.241
amean          45.785    45.784    45.758
amin           45.325    45.346    45.303
amax           46.299    46.332    46.319
emean           0.192     0.196     0.195
emin            0.176     0.181     0.178
emax            0.210     0.210     0.216
imean           9.786     9.525     9.731
imin            8.974     8.663     8.928
imax           10.782    10.374    10.741
excite_mean     0.256     0.257     0.258
fracstop        1.000     1.000     1.000
cjmean          3.043     3.043     3.041

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       184.0     176.6     184.8
kozaiamp        180.0     180.0     179.9