Orbit Fit and Astrometric record for 15KC175

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: 15KC175   
# Created Mon Apr 22 01:10:07 2019
# Orbit generated from Bernstein formalism
# Fitting   32 observations of   32
# Arc:   2.10y
# First observation: 2014/05/30
#  Last observation: 2016/07/04
Preliminary a, adot, b, bdot, g, gdot:
  -0.000048   0.017919   0.000022  -0.009852   0.022087   0.000000
# Chi-squared of fit:     8.95 DOF:   58 RMS:  0.09
# Min/Max residuals:    -0.25    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.314960E-05  1.782226E-02 -7.456860E-06 -9.821121E-03  2.231876E-02 -4.503073E-03
# Covariance matrix:
  2.0875E-13 -2.3601E-13 -2.0947E-14  6.3889E-14 -7.1309E-14 -2.9934E-12
 -2.3601E-13  5.2115E-13  7.1306E-14 -2.1855E-13  2.2801E-13  1.0234E-11
 -2.0947E-14  7.1306E-14  1.8639E-13 -1.5376E-13  4.9129E-14  1.8079E-12
  6.3889E-14 -2.1855E-13 -1.5376E-13  2.2084E-13 -1.4007E-13 -5.4804E-12
 -7.1309E-14  2.2801E-13  4.9129E-14 -1.4007E-13  3.0228E-13  6.6217E-12
 -2.9934E-12  1.0234E-11  1.8079E-12 -5.4804E-12  6.6217E-12  2.5698E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    7.740661 -127.290171   -0.281821    0.131357   -0.965976  2456807.886218
# Heliocentric elements and errors
Epoch:              2456800.5000  =  2014/05/23
Mean Anomaly:          284.32640 +/-     0.093
Argument of Peri:      264.17817 +/-     0.038
Long of Asc Node:       66.47670 +/-     0.000
Inclination:            29.82705 +/-     0.001
Eccentricity:         0.20751688 +/-    0.0008
Semi-Major Axis:     46.18523253 +/-    0.0162
Time of Perihelion: 2480899.2775 +/-      26.6
Perihelion:          36.60101704 +/-    0.0372
Aphelion:            55.76944803 +/-    0.0400
Period (y)              313.8795 +/-      0.16
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.26586221 +/-    0.0007
Ecliptic Y          -36.26621032 +/-    0.0009
Ecliptic Z            6.03453593 +/-    0.0001
Ecliptic XDOT         0.00196740 +/-    0.0000
Ecliptic YDOT        -0.00102182 +/-    0.0000
Ecliptic ZDOT        -0.00126806 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.77205344 +/-    0.0008
Geocenter to KBO     44.80535337 +/-    0.0011
# Hcoef:  8.37

The following table shows the complete astrometric record for 15KC175. 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 (15KC175) followed by the observatory code and reference code for the source of the astrometry.

2014 05  30.38544  15 29 12.987  -10 57 10.81  24.7r 15KC175   568  C~2nvg      
2014 06  01.31224  15 29 04.494  -10 56 56.10  24.7r 15KC175   568  C~2nvg      
2014 06  01.35552  15 29 04.299  -10 56 55.77  24.5r 15KC175   568  C~2nvg      
2014 06  22.30986  15 27 40.014  -10 55 24.21  25.4r 15KC175   568  C~2nvg      
2014 06  22.35268  15 27 39.853  -10 55 24.20  24.9r 15KC175   568  C~2nvg      
2014 07  19.32576  15 26 26.463  -10 57 01.34  25.3r 15KC175   568  C~2nvg      
2015 02  25.61255  15 37 50.873  -12 02 04.88  26.7r 15KC175   568  C~2nvg      
2015 03  19.61637  15 37 24.534  -11 59 11.00  24.5r 15KC175   568  C~2nvg      
2015 03  22.53501  15 37 18.049  -11 58 40.16  24.7r 15KC175   568  C~2nvg      
2015 04  13.54773  15 36 10.000  -11 54 12.27  24.5r 15KC175   568  C~2nvg      
2015 04  13.58882  15 36 09.848  -11 54 11.70  24.8r 15KC175   568  C~2nvg      
2015 05  21.31829  15 33 25.163  -11 46 30.33  25.4r 15KC175   568  C~2nvg      
2015 05  21.35947  15 33 24.987  -11 46 29.94  24.4r 15KC175   568  C~2nvg      
2015 05  21.40058  15 33 24.789  -11 46 29.64  24.5r 15KC175   568  C~2nvg      
2015 05  22.47722  15 33 19.814  -11 46 18.94  24.2r 15KC175   568  C~2nvg      
2015 05  25.46768  15 33 06.087  -11 45 50.82  24.6r 15KC175   568  C~2nvg      
2015 06  20.35717  15 31 16.382  -11 43 17.29  24.8r 15KC175   568  C~2nvg      
2015 06  20.39803  15 31 16.224  -11 43 17.32  24.5r 15KC175   568  C~2nvg      
2015 06  23.41822  15 31 05.154  -11 43 11.97  24.9r 15KC175   568  C~2nvg      
2015 07  11.29135  15 30 10.587  -11 43 41.78  25.1r 15KC175   568  C~2nvg      
2015 07  18.36074  15 29 54.968  -11 44 23.74  25.1r 15KC175   568  C~2nvg      
2016 02  05.63894  15 41 07.027  -12 49 33.26  24.6w 15KC175   568  C~2nvg      
2016 02  11.65084  15 41 15.472  -12 49 40.96  25.5w 15KC175   568  C~2nvg      
2016 03  15.58199  15 41 03.914  -12 47 12.48  24.1w 15KC175   568  C~2nvg      
2016 03  15.59592  15 41 03.895  -12 47 12.65  24.0w 15KC175   568  C~2nvg      
2016 04  03.53450  15 40 16.181  -12 43 58.11  24.9w 15KC175   568  C~2nvg      
2016 04  08.58404  15 39 59.265  -12 42 58.37  25.1w 15KC175   568  C~2nvg      
2016 04  29.46565  15 38 35.631  -12 38 40.53  26.0w 15KC175   568  C~2nvg      
2016 05  04.40073  15 38 13.560  -12 37 40.70  25.4w 15KC175   568  C~2nvg      
2016 05  30.48224  15 36 13.162  -12 33 14.22  24.9w 15KC175   568  C~2nvg      
2016 07  03.36648  15 34 00.929  -12 31 17.49  24.9w 15KC175   568  C~2nvg      
2016 07  04.28198  15 33 58.165  -12 31 19.14  24.9w 15KC175   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    -0.11       0.00     0.10
  2   0.0053   -124.86    -0.02     -16.45     0.05
  3   0.0054   -127.72    -0.05     -16.83     0.05
  4   0.0628  -1353.40     0.17    -233.64    -0.10
  5   0.0629  -1355.70     0.11    -234.21    -0.15
  6   0.1367  -2379.09    -0.02    -595.56    -0.07
  7   0.7426   8333.00     0.07   -1938.22     0.03
  8   0.8028   7915.58     0.00   -1861.33     0.05
  9   0.8108   7815.66     0.18   -1854.07     0.08
 10   0.8711   6780.59    -0.04   -1832.60    -0.00
 11   0.8712   6778.28     0.02   -1832.58     0.05
 12   0.9745   4318.71    -0.17   -1966.73     0.09
 13   0.9746   4316.10     0.07   -1966.98     0.14
 14   0.9747   4313.21     0.03   -1967.39     0.01
 15   0.9777   4239.70    -0.07   -1974.68     0.07
 16   0.9859   4037.22    -0.06   -1996.20    -0.10
 17   1.0567   2436.60    -0.06   -2238.69     0.02
 18   1.0568   2434.36    -0.05   -2239.28    -0.11
 19   1.0651   2275.35     0.01   -2273.73    -0.10
 20   1.1140   1505.38    -0.07   -2498.42    -0.04
 21   1.1334   1293.21    -0.04   -2595.26     0.08
 22   1.6872  11808.23     0.12   -4029.95    -0.16
 23   1.7037  11930.51    -0.02   -4008.43    -0.13
 24   1.7938  11730.54    -0.25   -3903.53     0.20
 25   1.7939  11730.31    -0.08   -3903.76    -0.06
 26   1.8457  11003.75     0.02   -3878.65    -0.05
 27   1.8595  10748.38     0.01   -3878.88    -0.00
 28   1.9167   9495.00     0.10   -3917.59    -0.11
 29   1.9302   9166.27    -0.00   -3936.08     0.01
 30   2.0016   7387.90    -0.01   -4097.24     0.07
 31   2.0944   5478.25     0.24   -4449.07     0.09
 32   2.0969   5439.34    -0.03   -4460.43     0.01

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.

15KC175    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.988    46.032    45.945
ecceobj         0.212     0.214     0.210
incobj         29.873    29.873    29.873
qmin           36.031    35.992    36.048
qmax           56.992    57.134    56.875
amean          46.281    46.333    46.236
amin           45.900    45.930    45.847
amax           46.722    46.789    46.701
emean           0.202     0.204     0.200
emin            0.185     0.189     0.183
emax            0.220     0.222     0.218
imean          28.668    28.686    28.667
imin           28.204    28.343    28.198
imax           28.996    28.970    29.021
excite_mean     0.521     0.522     0.520
fracstop        1.000     1.000     1.000
cjmean          2.782     2.781     2.783

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       190.5     186.4     191.0
kozaiamp        180.0     179.9     179.9