Orbit Fit and Astrometric record for 15KV175

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: 15KV175   
# Created Tue Nov 30 02:13:27 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     35 observations of     35
# Arc:   6.95y
# First observation: 2014/05/29
#  Last observation: 2021/05/12
# Chi-squared of fit:     2.27 DOF:     64 RMS:  0.04
# Min/Max residuals:    -0.13    0.10
# Exact a, adot, b, bdot, g, gdot:
  1.654205E-05  2.776269E-02 -5.499947E-06 -9.193605E-03  2.678098E-02  8.805773E-04
# Covariance matrix:
  1.6495E-13 -1.3968E-13 -2.8032E-14  3.6421E-14 -6.6675E-15 -5.7386E-13
 -1.3968E-13  1.7179E-13  3.6899E-14 -4.8507E-14 -1.3348E-14  7.6476E-13
 -2.8032E-14  3.6899E-14  8.6952E-14 -3.7004E-14  1.8575E-15  1.8499E-13
  3.6421E-14 -4.8507E-14 -3.7004E-14  3.3324E-14  1.2590E-15 -2.4205E-13
 -6.6675E-15 -1.3348E-14  1.8575E-15  1.2590E-15  1.4439E-13 -2.2931E-14
 -5.7386E-13  7.6476E-13  1.8499E-13 -2.4205E-13 -2.2931E-14  3.8153E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    6.107465 -127.537266   -0.269062    0.104135   -0.972692  2456806.851688
# Heliocentric elements and errors
Epoch:              2456806.5000  =  2014/05/29
Mean Anomaly:           11.72726 +/-     0.016
Argument of Peri:      145.29060 +/-     0.024
Long of Asc Node:       70.19055 +/-     0.000
Inclination:            19.29255 +/-     0.000
Eccentricity:         0.16203545 +/-    0.0001
Semi-Major Axis:     45.46195159 +/-    0.0040
Time of Perihelion: 2453159.2584 +/-       5.1
Perihelion:          38.09550385 +/-    0.0047
Aphelion:            52.82839933 +/-    0.0057
Period (y)              306.5352 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -23.00526360 +/-    0.0003
Ecliptic Y          -30.37912247 +/-    0.0004
Ecliptic Z            3.97258263 +/-    0.0001
Ecliptic XDOT         0.00212986 +/-    0.0000
Ecliptic YDOT        -0.00188317 +/-    0.0000
Ecliptic ZDOT        -0.00092484 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.31334883 +/-    0.0004
Geocenter to KBO     37.33994748 +/-    0.0005
# Hcoef:  7.01

The following table shows the complete astrometric record for 15KV175. 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 (15KV175) followed by the observatory code and reference code for the source of the astrometry.

2014 05  29.35091  15 26 35.916  -12 28 30.45  22.8r 15KV175   568  C~2nvi      
2014 05  29.38978  15 26 35.715  -12 28 29.99  22.7r 15KV175   568  C~2nvi      
2014 05  29.42862  15 26 35.517  -12 28 29.59  22.7r 15KV175   568  C~2nvi      
2014 05  30.45852  15 26 30.283  -12 28 18.39  22.7r 15KV175   568  C~2nvi      
2014 05  31.37479  15 26 25.660  -12 28 08.53  22.8r 15KV175   568  C~2nvi      
2014 06  21.39293  15 24 49.053  -12 25 33.30  22.8r 15KV175   568  C~2nvi      
2014 07  19.27038  15 23 25.700  -12 26 18.75  22.6r 15KV175   568  C~2nvi      
2015 02  20.65667  15 38 02.837  -13 41 48.24  22.9r 15KV175   568  C~2nvi      
2015 03  19.57074  15 37 38.157  -13 38 47.02  22.9r 15KV175   568  C~2nvi      
2015 04  18.51079  15 35 53.149  -13 32 08.20  22.8r 15KV175   568  C~2nvi      
2015 05  17.38343  15 33 27.493  -13 25 02.94  22.7r 15KV175   568  C~2nvi      
2015 05  17.42514  15 33 27.264  -13 25 02.35  22.7r 15KV175   568  C~2nvi      
2015 05  17.46733  15 33 27.033  -13 25 01.78  22.7r 15KV175   568  C~2nvi      
2015 05  24.36911  15 32 50.588  -13 23 33.16  22.8r 15KV175   568  C~2nvi      
2015 05  24.41533  15 32 50.340  -13 23 32.60  22.8r 15KV175   568  C~2nvi      
2015 05  24.45620  15 32 50.120  -13 23 32.11  22.8r 15KV175   568  C~2nvi      
2015 05  26.44379  15 32 39.733  -13 23 08.31  22.7r 15KV175   568  C~2nvi      
2015 06  18.34328  15 30 48.624  -13 19 45.91  22.8r 15KV175   568  C~2nvi      
2015 06  18.38434  15 30 48.442  -13 19 45.67  22.8r 15KV175   568  C~2nvi      
2015 06  21.35896  15 30 35.794  -13 19 30.97  22.8r 15KV175   568  C~2nvi      
2015 07  10.39102  15 29 29.261  -13 19 11.46  22.8r 15KV175   568  C~2nvi      
2015 07  17.34619  15 29 12.190  -13 19 38.72  23.0r 15KV175   568  C~2nvi      
2015 07  18.31678  15 29 10.155  -13 19 44.12  22.9r 15KV175   568  C~2nvi      
2016 02  06.62508  15 43 25.205  -14 33 06.66  23.2w 15KV175   568  C~2nvi      
2016 02  12.61062  15 43 36.442  -14 33 25.66  23.2w 15KV175   568  C~2nvi      
2016 03  15.61859  15 43 31.192  -14 31 34.85  23.1w 15KV175   568  C~2nvi      
2016 04  03.53855  15 42 39.905  -14 28 15.61  23.0w 15KV175   568  C~2nvi      
2016 04  08.58811  15 42 21.162  -14 27 11.25  23.0w 15KV175   568  C~2nvi      
2016 04  29.46970  15 40 47.012  -14 22 21.28  22.9w 15KV175   568  C~2nvi      
2016 05  04.40478  15 40 21.949  -14 21 11.50  22.9w 15KV175   568  C~2nvi      
2016 05  30.47820  15 38 04.679  -14 15 41.03  23.0w 15KV175   568  C~2nvi      
2016 07  04.29009  15 35 31.537  -14 12 17.42  23.0w 15KV175   568  C~2nvi      
2016 07  05.35837  15 35 28.024  -14 12 17.43  23.2w 15KV175   568  C~2nvi      
2021 05  12.390800 16 09 23.769  -18 34 54.89  23.0G 15KV175   G37  C~4pVs      
2021 05  12.422370 16 09 23.613  -18 34 54.35        15KV175   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    -0.03       0.00     0.02
     2   0.0001      0.00    -0.02       0.00     0.05
     3   0.0002      0.00     0.04       0.00     0.02
     4   0.0030      0.00     0.04       0.00    -0.10
     5   0.0055      0.00     0.01       0.00    -0.07
     6   0.0631      0.00     0.06       0.00     0.00
     7   0.1394      0.00     0.01       0.00    -0.00
     8   0.7318      0.00    -0.04       0.00    -0.01
     9   0.8055      0.00    -0.02       0.00    -0.01
    10   0.8875      0.00    -0.03       0.00     0.01
    11   0.9666      0.00     0.03       0.00    -0.03
    12   0.9667      0.00    -0.03       0.00    -0.00
    13   0.9668      0.00    -0.08       0.00    -0.00
    14   0.9857      0.00    -0.05       0.00     0.02
    15   0.9858      0.00    -0.07       0.00     0.01
    16   0.9859      0.00    -0.09       0.00     0.00
    17   0.9914      0.00     0.02       0.00     0.01
    18   1.0541      0.00     0.00       0.00     0.01
    19   1.0542      0.00     0.00       0.00     0.03
    20   1.0623      0.00     0.01       0.00    -0.03
    21   1.1144      0.00    -0.01       0.00     0.00
    22   1.1335      0.00     0.02       0.00     0.05
    23   1.1361      0.00     0.02       0.00    -0.00
    24   1.6927      0.00     0.08       0.00    -0.00
    25   1.7091      0.00     0.05       0.00    -0.04
    26   1.7968      0.00    -0.02       0.00     0.03
    27   1.8486      0.00     0.00       0.00    -0.01
    28   1.8624      0.00     0.05       0.00     0.05
    29   1.9196      0.00     0.01       0.00     0.05
    30   1.9331      0.00     0.02       0.00    -0.02
    31   2.0045      0.00     0.02       0.00     0.05
    32   2.0998      0.00     0.02       0.00     0.04
    33   2.1027      0.00    -0.01       0.00    -0.08
    34   6.9543      0.00    -0.11       0.00    -0.13
    35   6.9543      0.00     0.08       0.00     0.10

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.

15KV175    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.141    45.140    45.141
ecceobj         0.156     0.156     0.156
incobj         19.308    19.308    19.308
qmin           37.173    37.173    37.135
qmax           54.285    54.285    54.200
amean          45.532    45.532    45.532
amin           45.140    45.140    45.140
amax           45.965    45.965    45.970
emean           0.165     0.165     0.165
emin            0.150     0.150     0.150
emax            0.182     0.182     0.181
imean          17.733    17.732    17.733
imin           17.233    17.233    17.234
imax           18.272    18.272    18.268
excite_mean     0.346     0.346     0.346
fracstop        1.000     1.000     1.000
cjmean          2.971     2.971     2.971

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       181.3     181.3     181.5
kozaiamp        180.0     179.9     180.0