Orbit Fit and Astrometric record for 13UP15

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: 13UP15    
# Created Fri Dec 15 02:37:54 2017
# Orbit generated from Bernstein formalism
# Fitting   47 observations of   47
# Arc:   2.27y
# First observation: 2013/08/30
#  Last observation: 2015/12/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000148   0.023168  -0.000002   0.000431   0.023313   0.000000
# Chi-squared of fit:     7.57 DOF:   88 RMS:  0.07
# Min/Max residuals:    -0.25    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.528682E-05  2.311029E-02  4.702912E-07  4.304049E-04  2.344441E-02 -5.643939E-04
# Covariance matrix:
  1.1500E-13 -5.2451E-14 -2.2726E-17  4.5272E-17  5.5233E-14  5.5206E-14
 -5.2451E-14  2.5435E-13 -1.0658E-15  4.9424E-15  1.3420E-13  6.2474E-12
 -2.2726E-17 -1.0658E-15  8.5113E-14 -6.1449E-14 -7.2770E-16 -3.6364E-14
  4.5272E-17  4.9424E-15 -6.1449E-14  7.0136E-14  3.2753E-15  1.6914E-13
  5.5233E-14  1.3420E-13 -7.2770E-16  3.2753E-15  1.7821E-13  4.1367E-12
  5.5206E-14  6.2474E-12 -3.6364E-14  1.6914E-13  4.1367E-12  2.1382E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.284224   17.736491    0.660723   -0.030445   -0.764388  2456534.953688
# Heliocentric elements and errors
Epoch:              2456530.5000  =  2013/08/26
Mean Anomaly:          331.82237 +/-     0.333
Argument of Peri:      327.72305 +/-     0.405
Long of Asc Node:       82.16104 +/-     0.014
Inclination:             2.46946 +/-     0.000
Eccentricity:         0.08206976 +/-    0.0004
Semi-Major Axis:     46.72635782 +/-    0.0037
Time of Perihelion: 2465662.0239 +/-     107.8
Perihelion:          42.89153678 +/-    0.0168
Aphelion:            50.56117886 +/-    0.0170
Period (y)              319.4119 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.52385352 +/-    0.0007
Ecliptic Y           12.59064110 +/-    0.0002
Ecliptic Z           -1.69999970 +/-    0.0000
Ecliptic XDOT        -0.00088918 +/-    0.0000
Ecliptic YDOT         0.00255003 +/-    0.0000
Ecliptic ZDOT         0.00005299 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.42401011 +/-    0.0007
Geocenter to KBO     42.65409408 +/-    0.0008
# Hcoef:  7.53

The following table shows the complete astrometric record for 13UP15. 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 (13UP15) followed by the observatory code and reference code for the source of the astrometry.

2013 08  30.45291  01 08 54.984  +04 50 53.22  23.6r 13UP15    568  C~2NKU      
2013 08  30.45765  01 08 54.957  +04 50 53.09  24.0r 13UP15    568  C~2NKU      
2013 08  31.45558  01 08 51.885  +04 50 32.18  23.6r 13UP15    568  C~2NKU      
2013 08  31.52122  01 08 51.686  +04 50 30.78  23.3r 13UP15    568  C~2NKU      
2013 09  04.43540  01 08 39.046  +04 49 05.81  23.9r 13UP15    568  C~2NKU      
2013 09  04.51028  01 08 38.787  +04 49 04.28  23.7r 13UP15    568  C~2NKU      
2013 10  06.41689  01 06 32.074  +04 35 35.40  23.9r 13UP15    568  C~2NKU      
2013 10  09.54662  01 06 18.384  +04 34 11.52  23.7r 13UP15    568  C~2NKU      
2013 10  31.25837  01 04 45.658  +04 24 58.96  23.5r 13UP15    568  C~25nm      
2013 10  31.30132  01 04 45.480  +04 24 58.00  23.7r 13UP15    568  C~25nm      
2013 10  31.34404  01 04 45.306  +04 24 56.92  23.6r 13UP15    568  C~25nm      
2013 11  01.28510  01 04 41.518  +04 24 35.13  24.0r 13UP15    568  C~2NKU      
2013 11  01.41360  01 04 40.988  +04 24 32.09  23.7r 13UP15    568  C~2NKU      
2013 11  05.46270  01 04 25.049  +04 23 00.75  23.8r 13UP15    568  C~2NKU      
2013 12  04.27516  01 02 56.146  +04 15 05.79  24.0r 13UP15    568  C~2NKU      
2013 12  04.32732  01 02 56.039  +04 15 05.16  24.2r 13UP15    568  C~2NKU      
2013 12  06.22106  01 02 52.129  +04 14 47.22  23.9r 13UP15    568  C~2NKU      
2014 06  27.60950  01 14 24.924  +05 29 09.80  23.8r 13UP15    568  C~2NKU      
2014 06  29.58512  01 14 28.790  +05 29 27.37  23.7r 13UP15    568  C~2NKU      
2014 07  24.56867  01 14 49.878  +05 30 18.82  23.7r 13UP15    568  C~2NKU      
2014 07  27.59948  01 14 48.880  +05 30 03.65  23.9r 13UP15    568  C~2NKU      
2014 08  24.51225  01 14 05.348  +05 24 23.02  23.3r 13UP15    568  C~2NKU      
2014 08  28.49059  01 13 54.515  +05 23 08.29  23.7r 13UP15    568  C~2NKU      
2014 08  29.52684  01 13 51.524  +05 22 47.87  23.9r 13UP15    568  C~2NKU      
2014 08  29.61463  01 13 51.259  +05 22 46.16  23.8r 13UP15    568  C~2NKU      
2014 10  23.28255  01 10 13.917  +05 00 04.92  23.6r 13UP15    568  C~2NKU      
2014 10  23.33619  01 10 13.680  +05 00 03.28  23.7r 13UP15    568  C~2NKU      
2014 10  23.38966  01 10 13.436  +05 00 01.81  24.0r 13UP15    568  C~2NKU      
2014 10  23.39470  01 10 13.416  +05 00 01.93  24.1r 13UP15    568  C~2NKU      
2014 10  25.25994  01 10 05.444  +04 59 15.03  23.7r 13UP15    568  C~2NKU      
2014 10  25.35102  01 10 05.065  +04 59 12.72  23.7r 13UP15    568  C~2NKU      
2014 10  25.36233  01 10 05.014  +04 59 12.51  23.8r 13UP15    568  C~2NKU      
2014 10  25.46195  01 10 04.567  +04 59 10.03  24.0r 13UP15    568  C~2NKU      
2014 10  27.24998  01 09 57.010  +04 58 25.74  23.5r 13UP15    568  C~2NKU      
2014 10  27.30820  01 09 56.760  +04 58 24.34  23.7r 13UP15    568  C~2NKU      
2014 10  27.37469  01 09 56.474  +04 58 22.62  23.8r 13UP15    568  C~2NKU      
2014 10  29.26294  01 09 48.568  +04 57 36.63  23.8r 13UP15    568  C~2NKU      
2014 11  24.24388  01 08 13.887  +04 48 50.45  23.8r 13UP15    568  C~2NKU      
2014 11  25.24005  01 08 10.973  +04 48 35.24  24.2r 13UP15    568  C~2NKU      
2014 12  17.25485  01 07 24.736  +04 45 01.35  24.1r 13UP15    568  C~2NKU      
2015 01  17.23854  01 07 28.669  +04 47 19.64  23.8r 13UP15    568  C~2NKU      
2015 08  20.51066  01 19 08.590  +05 56 52.90  23.8r 13UP15    568  C~2NKU      
2015 10  15.30155  01 15 44.697  +05 35 16.35  23.3r 13UP15    568  C~2NKU      
2015 10  15.30564  01 15 44.675  +05 35 16.23  23.5r 13UP15    568  C~2NKU      
2015 10  15.35250  01 15 44.468  +05 35 15.03  23.3r 13UP15    568  C~2NKU      
2015 10  15.35660  01 15 44.449  +05 35 14.89  23.4r 13UP15    568  C~2NKU      
2015 12  07.37779  01 12 32.778  +05 17 32.62  23.9w 13UP15    568  C~2NKU      

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     0.06       0.00    -0.04
  2   0.0000     -0.42    -0.12       0.03     0.00
  3   0.0027    -50.84    -0.03      -1.85    -0.04
  4   0.0029    -54.12     0.11      -2.01    -0.11
  5   0.0136   -261.17     0.07      -8.75    -0.03
  6   0.0138   -265.33     0.08      -8.69     0.11
  7   0.1012  -2325.01    -0.06     -35.57     0.01
  8   0.1098  -2546.26    -0.25     -35.12     0.01
  9   0.1692  -4039.19     0.05     -17.15    -0.05
 10   0.1693  -4042.02     0.05     -17.02     0.00
 11   0.1694  -4044.84     0.05     -17.03    -0.09
 12   0.1720  -4105.54     0.10     -15.55     0.03
 13   0.1724  -4114.03     0.02     -15.34    -0.01
 14   0.1835  -4369.34     0.08      -8.78    -0.04
 15   0.2623  -5780.55    -0.12      60.15     0.08
 16   0.2625  -5782.27    -0.04      60.17    -0.07
 17   0.2677  -5843.23    -0.01      65.95     0.08
 18   0.8245   5432.98     0.03     255.75     0.04
 19   0.8299   5493.10    -0.01     250.19     0.01
 20   0.8983   5804.27    -0.02     178.73    -0.02
 21   0.9066   5784.73     0.01     170.32     0.05
 22   0.9831   5053.65    -0.00     100.81    -0.00
 23   0.9939   4875.52    -0.03      92.85     0.02
 24   0.9968   4826.42    -0.04      90.85    -0.02
 25   0.9970   4822.11    -0.05      90.77     0.02
 26   1.1467   1300.80     0.13      62.05     0.16
 27   1.1468   1296.90    -0.01      61.88    -0.09
 28   1.1470   1292.97    -0.19      61.91    -0.15
 29   1.1470   1292.74    -0.07      62.13     0.07
 30   1.1521   1164.72    -0.04      63.99     0.04
 31   1.1524   1158.60     0.16      64.00    -0.08
 32   1.1524   1157.82     0.16      64.10    -0.01
 33   1.1527   1150.70    -0.04      64.34     0.08
 34   1.1576   1029.41     0.03      66.27     0.03
 35   1.1577   1025.42     0.03      66.39     0.06
 36   1.1579   1020.81    -0.01      66.42    -0.02
 37   1.1631    894.05    -0.03      68.76    -0.01
 38   1.2342   -614.80    -0.03     120.09     0.13
 39   1.2369   -660.86     0.03     122.60     0.06
 40   1.2972  -1381.42    -0.09     187.86    -0.04
 41   1.3820  -1274.40    -0.04     293.36    -0.03
 42   1.9714   9987.90    -0.05     198.57     0.04
 43   2.1242   6675.25     0.03     144.91    -0.05
 44   2.1242   6674.90    -0.03     144.92    -0.04
 45   2.1243   6671.58     0.02     144.98    -0.03
 46   2.1243   6671.27     0.00     144.95    -0.05
 47   2.2695   3618.05     0.08     244.48    -0.02

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.

13UP15    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        47.001    47.010    46.992
ecceobj         0.086     0.086     0.085
incobj          2.470     2.470     2.470
qmin           42.044    42.058    42.101
qmax           51.558    51.572    51.490
amean          46.667    46.675    46.658
amin           46.274    46.290    46.279
amax           47.074    47.097    47.068
emean           0.083     0.083     0.082
emin            0.070     0.071     0.070
emax            0.095     0.096     0.094
imean           1.011     1.011     1.010
imin            0.620     0.621     0.619
imax            1.361     1.361     1.360
excite_mean     0.085     0.085     0.084
fracstop        1.000     1.000     1.000
cjmean          3.126     3.126     3.126

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       151.9     151.6     151.6
kozaiamp        180.0     180.0     179.9