Orbit Fit and Astrometric record for 13UP17

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: 13UP17    
# Created Sat Dec 16 02:37:58 2017
# Orbit generated from Bernstein formalism
# Fitting   34 observations of   34
# Arc:   2.35y
# First observation: 2013/08/02
#  Last observation: 2015/12/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000154   0.023815  -0.000001   0.000078   0.024022   0.000000
# Chi-squared of fit:     9.61 DOF:   62 RMS:  0.09
# Min/Max residuals:    -0.30    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.576069E-05  2.366530E-02 -6.183437E-08  7.775665E-05  2.398862E-02  1.249676E-03
# Covariance matrix:
  1.6226E-13 -1.5443E-14  5.3650E-16 -7.0506E-17  1.1222E-13  2.3753E-12
 -1.5443E-14  2.6245E-13  6.2875E-16  3.3160E-16  1.6797E-13  7.1065E-12
  5.3650E-16  6.2875E-16  1.0165E-13 -8.0718E-14  1.0228E-15  2.3875E-14
 -7.0506E-17  3.3160E-16 -8.0718E-14  1.1078E-13  1.0543E-16  2.0013E-14
  1.1222E-13  1.6797E-13  1.0228E-15  1.0543E-16  2.3504E-13  7.0310E-12
  2.3753E-12  7.1065E-12  2.3875E-14  2.0013E-14  7.0310E-12  3.4730E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.940279   16.165145    0.929336   -0.006740   -0.412452  2456507.020968
# Heliocentric elements and errors
Epoch:              2456500.5000  =  2013/07/27
Mean Anomaly:           32.74250 +/-     0.651
Argument of Peri:      244.16754 +/-     0.741
Long of Asc Node:       94.67897 +/-     0.048
Inclination:             0.94579 +/-     0.000
Eccentricity:         0.05031261 +/-    0.0005
Semi-Major Axis:     43.93372721 +/-    0.0034
Time of Perihelion: 2446826.5292 +/-     192.4
Perihelion:          41.72330664 +/-    0.0222
Aphelion:            46.14414779 +/-    0.0222
Period (y)              291.2093 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           40.68759434 +/-    0.0008
Ecliptic Y           10.82961968 +/-    0.0002
Ecliptic Z           -0.68404381 +/-    0.0000
Ecliptic XDOT        -0.00062108 +/-    0.0000
Ecliptic YDOT         0.00263308 +/-    0.0000
Ecliptic ZDOT         0.00000667 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.10972466 +/-    0.0008
Geocenter to KBO     41.68643765 +/-    0.0008
# Hcoef:  7.95

The following table shows the complete astrometric record for 13UP17. 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 (13UP17) followed by the observatory code and reference code for the source of the astrometry.

2013 08  02.52019  01 01 01.459  +05 29 24.18  24.4r 13UP17    568  C~2NKa      
2013 08  02.56292  01 01 01.399  +05 29 23.80  23.7r 13UP17    568  C~2NKa      
2013 08  30.43573  00 59 56.090  +05 22 06.80  24.3r 13UP17    568  C~2NKa      
2013 08  31.43992  00 59 52.753  +05 21 45.16  24.7r 13UP17    568  C~2NKa      
2013 08  31.48289  00 59 52.611  +05 21 44.34  24.1r 13UP17    568  C~2NKa      
2013 09  04.41982  00 59 39.027  +05 20 16.46  23.2r 13UP17    568  C~2NKa      
2013 09  04.46259  00 59 38.877  +05 20 15.49  23.7r 13UP17    568  C~2NKa      
2013 10  06.40113  00 57 26.087  +05 06 15.52  24.4r 13UP17    568  C~2NKa      
2013 10  06.48380  00 57 25.706  +05 06 13.21  24.3r 13UP17    568  C~2NKa      
2013 10  31.24273  00 55 37.534  +04 55 06.00  24.8r 13UP17    568  C~2NKa      
2013 10  31.28571  00 55 37.369  +04 55 04.99  23.9r 13UP17    568  C~2NKa      
2013 10  31.32850  00 55 37.192  +04 55 03.94  24.3r 13UP17    568  C~2NKa      
2013 11  01.26903  00 55 33.392  +04 54 40.61  23.9r 13UP17    568  C~2NKa      
2013 11  01.39303  00 55 32.882  +04 54 37.63  23.8r 13UP17    568  C~2NKa      
2013 11  29.30934  00 54 00.829  +04 45 29.21  23.8r 13UP17    568  C~2NKa      
2013 12  04.25882  00 53 49.920  +04 44 27.57  24.2r 13UP17    568  C~2NKa      
2013 12  04.31091  00 53 49.827  +04 44 26.82  24.8r 13UP17    568  C~2NKa      
2014 06  27.59003  01 05 49.839  +06 00 15.00  24.2r 13UP17    568  C~2NKa      
2014 06  28.59510  01 05 51.710  +06 00 25.22  24.1r 13UP17    568  C~2NKa      
2014 07  24.54140  01 06 10.172  +06 01 42.82  24.2r 13UP17    568  C~2NKa      
2014 07  27.57207  01 06 08.542  +06 01 28.72  23.8r 13UP17    568  C~2NKa      
2014 08  22.57202  01 05 24.060  +05 56 22.83  24.2r 13UP17    568  C~2NKa      
2014 08  22.59325  01 05 24.007  +05 56 22.69  24.1r 13UP17    568  C~2NKa      
2014 08  28.43479  01 05 07.149  +05 54 32.91  23.9r 13UP17    568  C~2NKa      
2014 10  23.35625  01 01 16.830  +05 30 31.88  24.3r 13UP17    568  C~2NKa      
2014 10  23.37959  01 01 16.721  +05 30 31.44  24.3r 13UP17    568  C~2NKa      
2014 10  27.39496  01 00 59.387  +05 28 45.76  23.8r 13UP17    568  C~2NKa      
2014 11  24.24776  00 59 17.351  +05 18 35.90  23.7r 13UP17    568  C~2NKa      
2014 11  25.24396  00 59 14.506  +05 18 19.56  23.9r 13UP17    568  C~2NKa      
2014 12  17.27453  00 58 31.230  +05 14 19.67  23.8r 13UP17    568  C~2NKa      
2015 01  17.27935  00 58 42.240  +05 16 15.48  24.1r 13UP17    568  C~2NKa      
2015 01  17.28768  00 58 42.256  +05 16 15.55  24.1r 13UP17    568  C~2NKa      
2015 08  20.52313  01 10 32.834  +06 28 19.88  23.8r 13UP17    568  C~2NKa      
2015 12  07.39423  01 03 47.564  +05 47 05.42  24.2w 13UP17    568  C~2NKa      

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     -0.97    -0.05      -0.01     0.05
  3   0.0764  -1069.26    -0.04     -28.99     0.04
  4   0.0792  -1123.59    -0.19     -29.82     0.03
  5   0.0793  -1125.86    -0.08     -29.76     0.11
  6   0.0901  -1346.94     0.09     -32.93    -0.00
  7   0.0902  -1349.38     0.17     -32.97    -0.03
  8   0.1776  -3503.76     0.03     -45.11    -0.00
  9   0.1779  -3509.91    -0.00     -45.05     0.02
 10   0.2456  -5259.36    -0.30     -37.64     0.08
 11   0.2458  -5262.03    -0.10     -37.62     0.06
 12   0.2459  -5264.88    -0.08     -37.57     0.06
 13   0.2485  -5326.31     0.01     -37.18    -0.10
 14   0.2488  -5334.50     0.04     -36.99    -0.05
 15   0.3252  -6816.73     0.01     -11.69    -0.17
 16   0.3388  -6991.15     0.15      -5.54     0.06
 17   0.3389  -6992.72     0.31      -5.69    -0.18
 18   0.9009   4685.42    -0.01      62.02    -0.03
 19   0.9037   4715.13     0.03      60.81     0.02
 20   0.9747   4999.46     0.07      27.38    -0.05
 21   0.9830   4971.59    -0.04      23.63    -0.02
 22   1.0542   4241.10     0.05      -5.66    -0.15
 23   1.0543   4240.32     0.22      -5.49     0.03
 24   1.0703   3965.83     0.02     -10.83     0.07
 25   1.2234    237.91    -0.04     -25.56    -0.12
 26   1.2234    236.24    -0.05     -25.34     0.08
 27   1.2344    -43.31    -0.06     -23.60    -0.02
 28   1.3107  -1684.47     0.07      -1.32    -0.01
 29   1.3134  -1729.98    -0.02      -0.07     0.17
 30   1.3737  -2418.99    -0.07      27.12     0.06
 31   1.4586  -2222.61    -0.02      70.74     0.02
 32   1.4586  -2222.37    -0.01      70.72    -0.02
 33   2.0479   9234.22    -0.05      12.79    -0.04
 34   2.3460   2697.07    -0.03      29.88     0.03

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.

13UP17    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.176    44.188    44.164
ecceobj         0.056     0.057     0.055
incobj          0.946     0.946     0.946
qmin           40.830    40.802    40.876
qmax           47.140    47.215    47.137
amean          43.901    43.913    43.889
amin           43.561    43.569    43.548
amax           44.256    44.266    44.260
emean           0.050     0.051     0.049
emin            0.034     0.034     0.032
emax            0.065     0.067     0.065
imean           1.027     1.029     1.025
imin            0.241     0.245     0.238
imax            1.583     1.587     1.580
excite_mean     0.053     0.054     0.052
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.097

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       191.3     190.9     191.7
kozaiamp        180.0     179.9     180.0