Orbit Fit and Astrometric record for 15KL174

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: 15KL174   
# Created Fri Feb 22 02:10:24 2019
# Orbit generated from Bernstein formalism
# Fitting   39 observations of   39
# Arc:   3.24y
# First observation: 2014/05/29
#  Last observation: 2017/08/25
Preliminary a, adot, b, bdot, g, gdot:
   0.000309   0.028582   0.000130   0.010050   0.027707   0.000000
# Chi-squared of fit:    16.62 DOF:   72 RMS:  0.12
# Min/Max residuals:    -0.25    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.683593E-05  2.916698E-02  6.505872E-06  1.026217E-02  2.799867E-02  1.330431E-03
# Covariance matrix:
  2.8429E-13 -3.2228E-13  5.1245E-14 -9.0536E-14 -1.1451E-13 -2.7521E-12
 -3.2228E-13  5.2159E-13 -9.7889E-14  1.7184E-13  1.6967E-13  5.2630E-12
  5.1245E-14 -9.7889E-14  1.6401E-13 -1.0672E-13 -3.2846E-14 -1.0915E-12
 -9.0536E-14  1.7184E-13 -1.0672E-13  1.1047E-13  5.9581E-14  1.9130E-12
 -1.1451E-13  1.6967E-13 -3.2846E-14  5.9581E-14  1.4221E-13  1.7558E-12
 -2.7521E-12  5.2630E-12 -1.0915E-12  1.9130E-12  1.7558E-12  5.8702E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    5.689880 -128.902528   -0.293709    0.096335   -0.966367  2456806.937158
# Heliocentric elements and errors
Epoch:              2456800.5000  =  2014/05/23
Mean Anomaly:           17.93253 +/-     0.071
Argument of Peri:      352.26203 +/-     0.099
Long of Asc Node:      216.18947 +/-     0.000
Inclination:            20.10403 +/-     0.000
Eccentricity:         0.14357385 +/-    0.0001
Semi-Major Axis:     42.36629024 +/-    0.0031
Time of Perihelion: 2451783.2229 +/-      19.8
Perihelion:          36.28359890 +/-    0.0065
Aphelion:            48.44898158 +/-    0.0069
Period (y)              275.7648 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.70169901 +/-    0.0003
Ecliptic Y          -28.59654455 +/-    0.0004
Ecliptic Z            3.54131871 +/-    0.0001
Ecliptic XDOT         0.00219547 +/-    0.0000
Ecliptic YDOT        -0.00181806 +/-    0.0000
Ecliptic ZDOT         0.00101157 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.68338093 +/-    0.0003
Geocenter to KBO     35.71598768 +/-    0.0005
# Hcoef:  9.00

The following table shows the complete astrometric record for 15KL174. 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 (15KL174) followed by the observatory code and reference code for the source of the astrometry.

2014 05  29.43638  15 20 46.971  -12 32 12.84  23.9r 15KL174   568  C~2lVJ      
2014 05  30.46630  15 20 41.791  -12 31 49.15  25.1r 15KL174   568  C~2lVJ      
2014 06  21.36184  15 19 02.198  -12 24 52.66  24.4r 15KL174   568  C~2lVJ      
2014 06  21.40072  15 19 02.025  -12 24 52.14  24.7r 15KL174   568  C~2lVJ      
2015 02  20.65258  15 33 41.488  -13 02 33.26  24.6r 15KL174   568  C~2lVJ      
2015 03  19.58718  15 33 17.699  -12 54 05.65  24.1r 15KL174   568  C~2lVJ      
2015 03  21.64578  15 33 12.776  -12 53 17.80  24.5r 15KL174   568  C~2lVJ      
2015 04  18.52716  15 31 31.578  -12 41 13.38  25.7r 15KL174   568  C~2lVJ      
2015 05  17.40013  15 29 04.733  -12 28 17.98  24.4r 15KL174   568  C~2lVJ      
2015 05  17.44183  15 29 04.520  -12 28 17.15  24.3r 15KL174   568  C~2lVJ      
2015 05  17.49383  15 29 04.227  -12 28 15.77  24.2r 15KL174   568  C~2lVJ      
2015 05  17.51894  15 29 04.119  -12 28 15.23  24.4r 15KL174   568  C~2lVJ      
2015 05  24.38557  15 28 27.792  -12 25 27.46  24.1r 15KL174   568  C~2lVJ      
2015 05  24.43166  15 28 27.531  -12 25 26.63  25.0r 15KL174   568  C~2lVJ      
2015 05  24.47270  15 28 27.320  -12 25 25.51  24.6r 15KL174   568  C~2lVJ      
2015 05  26.46061  15 28 16.926  -12 24 39.11  24.4r 15KL174   568  C~2lVJ      
2015 06  18.35975  15 26 26.870  -12 17 08.66  24.6r 15KL174   568  C~2lVJ      
2015 06  18.40072  15 26 26.686  -12 17 08.04  25.2r 15KL174   568  C~2lVJ      
2015 07  10.41105  15 25 10.489  -12 12 59.42  24.4r 15KL174   568  C~2lVJ      
2015 07  18.33583  15 24 52.966  -12 12 20.85  24.4r 15KL174   568  C~2lVJ      
2015 08  11.33392  15 24 37.944  -12 13 12.01  24.3r 15KL174   568  C~2lVJ      
2016 02  05.63894  15 40 18.571  -12 55 34.01  24.4w 15KL174   568  C~2lVJ      
2016 02  11.65084  15 40 31.470  -12 54 37.24  25.4w 15KL174   568  C~2lVJ      
2016 03  15.58199  15 40 30.914  -12 45 23.55  24.6w 15KL174   568  C~2lVJ      
2016 03  15.59592  15 40 30.889  -12 45 23.36  24.7w 15KL174   568  C~2lVJ      
2016 03  17.60128  15 40 27.088  -12 44 38.41  24.5w 15KL174   568  C~2lVJ      
2016 04  03.53450  15 39 39.905  -12 37 44.25  24.7w 15KL174   568  C~2lVJ      
2016 04  08.58404  15 39 21.125  -12 35 31.72  25.1w 15KL174   568  C~2lVJ      
2016 04  29.46565  15 37 46.630  -12 26 08.79  24.5w 15KL174   568  C~2lVJ      
2016 05  04.40073  15 37 21.484  -12 23 57.10  24.5w 15KL174   568  C~2lVJ      
2016 07  03.36648  15 32 36.634  -12 04 43.37  24.7w 15KL174   568  C~2lVJ      
2016 07  04.28198  15 32 33.707  -12 04 35.43  24.6w 15KL174   568  C~2lVJ      
2016 07  05.35027  15 32 30.318  -12 04 26.81  24.9w 15KL174   568  C~2lVJ      
2017 03  28.59816  15 47 06.540  -12 29 49.38  24.9w 15KL174   568  C~2lVJ      
2017 06  26.28306  15 40 10.518  -11 56 09.62  24.7w 15KL174   568  C~2lVJ      
2017 07  28.28692  15 38 45.976  -11 53 40.96  25.0w 15KL174   568  C~2lVJ      
2017 07  28.30120  15 38 45.965  -11 53 41.00  25.1w 15KL174   568  C~2lVJ      
2017 08  19.25564  15 38 45.412  -11 56 06.37  24.2w 15KL174   568  C~2lVJ      
2017 08  25.26415  15 38 54.142  -11 57 17.49  24.9w 15KL174   568  C~2lVJ      

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    -0.07       0.00    -0.15
  2   0.0028    -79.39     0.36       3.49     0.25
  3   0.0628  -1596.09    -0.02      31.53    -0.00
  4   0.0629  -1598.68    -0.25      31.38    -0.13
  5   0.7316  11436.64     0.07    1069.82     0.09
  6   0.8053  10974.24    -0.04    1477.76     0.15
  7   0.8110  10892.52    -0.11    1506.60     0.06
  8   0.8873   9275.93    -0.04    1846.08     0.05
  9   0.9664   6997.56    -0.20    2065.85     0.13
 10   0.9665   6994.32     0.04    2065.88    -0.04
 11   0.9666   6989.82    -0.14    2066.15    -0.01
 12   0.9667   6988.15     0.27    2066.28    -0.00
 13   0.9855   6430.44     0.10    2096.42     0.16
 14   0.9856   6426.52    -0.04    2096.27    -0.14
 15   0.9857   6423.25     0.04    2096.59     0.03
 16   0.9912   6264.07    -0.03    2103.59    -0.02
 17   1.0539   4588.77     0.06    2136.51    -0.01
 18   1.0540   4586.00    -0.01    2136.43    -0.06
 19   1.1142   3441.94     0.06    2096.21     0.01
 20   1.1359   3183.53    -0.04    2068.75    -0.17
 21   1.2016   2983.27    -0.04    1963.64    -0.14
 22   1.6898  16996.41     0.16    2880.48    -0.11
 23   1.7063  17167.35     0.06    2980.90    -0.02
 24   1.7964  17027.29    -0.13    3518.68     0.07
 25   1.7965  17026.88    -0.08    3518.78    -0.04
 26   1.8020  16961.76    -0.00    3549.29     0.01
 27   1.8483  16187.62     0.06    3787.44     0.03
 28   1.8621  15887.22    -0.01    3850.52    -0.03
 29   1.9193  14400.80     0.05    4065.13    -0.05
 30   1.9328  14009.67     0.09    4104.18     0.19
 31   2.0970   9663.61    -0.16    4206.26    -0.05
 32   2.0995   9619.93     0.13    4203.40     0.03
 33   2.1024   9569.51    -0.12    4199.53    -0.22
 34   2.8314  22491.04    -0.15    5803.27     0.02
 35   3.0769  16029.76     0.08    6326.19    -0.04
 36   3.1645  14781.75     0.01    6171.80     0.14
 37   3.1646  14781.60     0.11    6171.73     0.15
 38   3.2247  14808.58    -0.03    6028.19    -0.25
 39   3.2411  14950.76    -0.01    5989.87     0.12

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.

15KL174    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        42.098    42.109    42.087
ecceobj         0.138     0.138     0.137
incobj         20.160    20.160    20.160
qmin           33.819    33.810    34.277
qmax           51.536    51.461    51.021
amean          42.326    42.324    42.326
amin           41.829    41.820    41.835
amax           42.883    42.855    42.852
emean           0.163     0.157     0.153
emin            0.129     0.117     0.123
emax            0.204     0.202     0.191
imean          20.631    20.879    20.812
imin           19.783    19.905    19.659
imax           21.296    21.688    21.554
excite_mean     0.388     0.390     0.387
fracstop        1.000     1.000     1.000
cjmean          2.900     2.898     2.900

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       183.9     181.3     164.8
kozaiamp        180.0     180.0     180.0