Orbit Fit and Astrometric record for 13UV17

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: 13UV17    
# Created Sat Dec 16 02:37:58 2017
# Orbit generated from Bernstein formalism
# Fitting   46 observations of   47
# Arc:   2.27y
# First observation: 2013/08/31
#  Last observation: 2015/12/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000164   0.024398  -0.000003   0.000604   0.025142   0.000000
# Chi-squared of fit:    21.57 DOF:   86 RMS:  0.12
# Min/Max residuals:    -0.39    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.561489E-05  2.451579E-02 -1.875121E-06  6.089606E-04  2.541802E-02  4.910747E-03
# Covariance matrix:
  1.0465E-13 -3.8785E-14 -2.1705E-17  2.0479E-16  5.9642E-14  1.9150E-13
 -3.8785E-14  2.6832E-13 -1.4228E-15  7.2301E-15  1.5503E-13  6.4433E-12
 -2.1705E-17 -1.4228E-15  7.6846E-14 -5.4646E-14 -9.3352E-16 -4.6533E-14
  2.0479E-16  7.2301E-15 -5.4646E-14  6.6975E-14  4.9126E-15  2.3535E-13
  5.9642E-14  1.5503E-13 -9.3352E-16  4.9126E-15  2.0405E-13  4.3941E-12
  1.9150E-13  6.4433E-12 -4.6533E-14  2.3535E-13  4.3941E-12  2.0963E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.587339   17.511077    0.657832   -0.021215   -0.767192  2456534.944378
# Heliocentric elements and errors
Epoch:              2456530.5000  =  2013/08/26
Mean Anomaly:           85.06571 +/-     0.084
Argument of Peri:      206.21245 +/-     0.056
Long of Asc Node:       64.88958 +/-     0.012
Inclination:             2.08422 +/-     0.000
Eccentricity:         0.17878159 +/-    0.0005
Semi-Major Axis:     39.46554687 +/-    0.0083
Time of Perihelion: 2435132.2806 +/-      20.1
Perihelion:          32.40983348 +/-    0.0221
Aphelion:            46.52126027 +/-    0.0232
Period (y)              247.9336 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.43404779 +/-    0.0007
Ecliptic Y           11.43977832 +/-    0.0002
Ecliptic Z           -1.08984993 +/-    0.0000
Ecliptic XDOT        -0.00029476 +/-    0.0000
Ecliptic YDOT         0.00267687 +/-    0.0000
Ecliptic ZDOT         0.00005105 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.11523813 +/-    0.0006
Geocenter to KBO     39.34216788 +/-    0.0007
# Hcoef:  8.29

The following table shows the complete astrometric record for 13UV17. 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 (13UV17) followed by the observatory code and reference code for the source of the astrometry.

2013 08  30.44360  01 07 00.867  +05 24 24.46  23.8r 13UV17    568  C~2NKb      
2013 08  31.44775  01 06 57.476  +05 24 01.62  24.2r 13UV17    568  C~2NKb      
2013 08  31.49065  01 06 57.337  +05 24 00.85  24.0r 13UV17    568  C~2NKb      
2013 08  31.50871  01 06 57.233  +05 24 00.27  24.9r 13UV17    568  C~2NKb      
2013 09  04.42758  01 06 43.330  +05 22 30.01  24.4r 13UV17    568  C~2NKb      
2013 09  04.47051  01 06 43.192  +05 22 28.48  23.7r 13UV17    568  C~2NKb      
2013 09  04.47904  01 06 43.131  +05 22 28.70  23.6r 13UV17    568  C~2NKb      
2013 09  04.49657  01 06 43.085  +05 22 28.31  24.7r 13UV17    568  C~2NKb      
2013 09  04.52303  01 06 42.979  +05 22 27.31  23.7r 13UV17    568  C~2NKb      
2013 10  06.40889  01 04 24.459  +05 07 57.63  24.1r 13UV17    568  C~2NKb      
2013 10  06.49158  01 04 24.065  +05 07 55.03  24.4r 13UV17    568  C~2NKb      
2013 10  06.49617  01 04 24.022  +05 07 55.18  24.2r 13UV17    568  C~2NKb      
2013 10  31.25056  01 02 28.855  +04 56 22.40  24.1r 13UV17    568  C~2NKb      
2013 10  31.29356  01 02 28.671  +04 56 21.39  24.3r 13UV17    568  C~2NKb      
2013 10  31.33628  01 02 28.484  +04 56 20.40  24.0r 13UV17    568  C~2NKb      
2013 11  01.27683  01 02 24.390  +04 55 56.24  24.6r 13UV17    568  C~2NKb      
2013 11  01.40318  01 02 23.825  +04 55 53.03  24.1r 13UV17    568  C~2NKb      
2013 11  29.31710  01 00 43.329  +04 46 24.89  24.4r 13UV17    568  C~2NKb      
2013 12  04.26738  01 00 31.015  +04 45 21.01  24.3r 13UV17    568  C~2NKb      
2013 12  04.31956  01 00 30.896  +04 45 20.62  24.8r 13UV17    568  C~2NKb      
2014 06  27.60950  01 12 53.209  +06 04 41.23  24.5r 13UV17    568  C~2NKb      
2014 06  29.58512  01 12 57.251  +06 05 01.62  24.2r 13UV17    568  C~2NKb      
2014 07  24.56087  01 13 18.399  +06 06 17.77  24.5r 13UV17    568  C~2NKb      
2014 07  27.59171  01 13 17.137  +06 06 03.75  24.8r 13UV17    568  C~2NKb      
2014 08  24.51225  01 12 28.475  +06 00 16.20  24.1r 13UV17    568  C~2NKb      
2014 08  28.49059  01 12 16.567  +05 58 57.76  23.5r 13UV17    568  C~2NKb      
2014 10  23.28255  01 08 16.593  +05 34 13.35  22.9r 13UV17    568  C~2NKb      
2014 10  23.33619  01 08 16.335  +05 34 11.62  24.2r 13UV17    568  C~2NKb      
2014 10  23.38966  01 08 16.092  +05 34 10.36  24.2r 13UV17    568  C~2NKb      
2014 10  23.39470  01 08 16.053  +05 34 10.20  24.3r 13UV17    568  C~2NKb      
2014 10  25.25994  01 08 07.437  +05 33 18.85  24.0r 13UV17    568  C~2NKb      
2014 10  25.35102  01 08 07.022  +05 33 16.48  23.6r 13UV17    568  C~2NKb      
2014 10  25.36233  01 08 06.954  +05 33 15.77  24.4r 13UV17    568  C~2NKb      
2014 10  25.46195  01 08 06.493  +05 33 13.30  24.3r 13UV17    568  C~2NKb      
2014 10  27.24998  01 07 58.316  +05 32 25.15  24.1r 13UV17    568  C~2NKb      
2014 10  27.30820  01 07 58.044  +05 32 23.46  24.5r 13UV17    568  C~2NKb      
2014 10  27.37469  01 07 57.749  +05 32 21.82  24.1r 13UV17    568  C~2NKb      
2014 10  29.26294  01 07 49.212  +05 31 31.44  24.1r 13UV17    568  C~2NKb      
2014 11  24.24388  01 06 07.362  +05 21 50.16  22.9r 13UV17    568  C~2NKb      
2014 11  25.24005  01 06 04.220  +05 21 33.12  24.4r 13UV17    568  C~2NKb      
2015 01  17.23854  01 05 20.373  +05 19 28.04  25.2r 13UV17    568  C~2NKb      
2015 08  20.51066  01 17 44.960  +06 34 40.68  24.6r 13UV17    568  C~2NKb      
2015 10  15.30155  01 14 03.627  +06 11 44.39  24.1r 13UV17    568  C~2NKb      
2015 10  15.30564  01 14 03.602  +06 11 44.35  24.2r 13UV17    568  C~2NKb      
2015 10  15.35250  01 14 03.374  +06 11 42.95  23.9r 13UV17    568  C~2NKb      
2015 10  15.35660  01 14 03.352  +06 11 42.85  24.0r 13UV17    568  C~2NKb      
2015 12  07.37779  01 10 37.682  +05 52 14.51  24.7w 13UV17    568  C~2NKb      

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 (  -0.08)      0.00 (   0.46)
  2   0.0027    -55.52     0.02      -1.82    -0.13
  3   0.0029    -57.73     0.26      -1.74    -0.02
  4   0.0029    -59.39    -0.37      -1.69     0.04
  5   0.0136   -285.74    -0.02      -6.01     0.22
  6   0.0138   -288.23     0.11      -6.64    -0.39
  7   0.0138   -288.99    -0.13      -6.09     0.17
  8   0.0138   -289.78     0.15      -6.18     0.08
  9   0.0139   -291.62    -0.08      -6.51    -0.23
 10   0.1012  -2536.12     0.04     -20.86     0.09
 11   0.1014  -2542.55     0.05     -21.02    -0.12
 12   0.1014  -2543.09    -0.13     -20.63     0.26
 13   0.1692  -4398.59    -0.17      -2.81    -0.02
 14   0.1693  -4401.52    -0.03      -2.69     0.03
 15   0.1695  -4404.48     0.06      -2.54     0.11
 16   0.1720  -4470.28     0.09      -1.44     0.02
 17   0.1724  -4479.32     0.02      -1.18     0.06
 18   0.2488  -6085.48     0.12      49.31    -0.08
 19   0.2624  -6280.15    -0.09      60.88    -0.02
 20   0.2625  -6281.95     0.06      61.20     0.15
 21   0.8245   5783.97     0.13     238.05     0.16
 22   0.8300   5847.54    -0.01     234.10    -0.00
 23   0.8983   6168.59    -0.07     185.15     0.03
 24   0.9066   6145.84    -0.02     179.30    -0.03
 25   0.9831   5341.80     0.03     132.47     0.03
 26   0.9940   5147.56    -0.01     127.18    -0.01
 27   1.1467   1269.76     0.16     113.96     0.16
 28   1.1469   1265.54    -0.00     113.83    -0.05
 29   1.1470   1261.70     0.22     114.05     0.09
 30   1.1470   1261.10     0.00     114.12     0.16
 31   1.1521   1122.61    -0.04     115.59    -0.07
 32   1.1524   1115.97     0.15     115.75    -0.04
 33   1.1524   1114.76    -0.21     115.48    -0.33
 34   1.1527   1107.46    -0.03     115.82    -0.14
 35   1.1576    976.24    -0.07     117.76     0.07
 36   1.1577    971.84    -0.16     117.75    -0.03
 37   1.1579    967.14     0.08     117.91     0.02
 38   1.1631    830.10     0.01     119.84    -0.08
 39   1.2342   -797.52     0.08     161.95    -0.19
 40   1.2370   -847.40    -0.14     164.09    -0.12
 41   1.3821  -1500.46    -0.06     298.33    -0.11
 42   1.9714  10498.56    -0.04     261.99     0.09
 43   2.1242   6917.30     0.07     232.34    -0.01
 44   2.1242   6916.93     0.03     232.45     0.09
 45   2.1243   6913.25    -0.03     232.44     0.03
 46   2.1243   6912.91    -0.05     232.47     0.06
 47   2.2695   3628.81     0.01     313.64     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.

13UV17    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.679    39.704    39.655
ecceobj         0.180     0.182     0.179
incobj          2.083     2.083     2.084
qmin           31.462    31.450    31.482
qmax           47.920    48.019    47.824
amean          39.456    39.456    39.456
amin           39.066    39.067    39.073
amax           39.911    39.937    39.899
emean           0.186     0.187     0.185
emin            0.170     0.172     0.170
emax            0.202     0.203     0.199
imean           1.047     1.042     1.051
imin            0.658     0.647     0.660
imax            1.427     1.467     1.453
excite_mean     0.187     0.187     0.186
fracstop        1.000     1.000     1.000
cjmean          3.012     3.012     3.012

libcent 0       180.2     180.0     180.5
libamp  0        57.1      60.6      54.9
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       178.8     178.9     177.8
kozaiamp        179.9     180.0     180.0