Orbit Fit and Astrometric record for 14UR224

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: 14UR224   
# Created Sun Oct 22 01:38:30 2017
# Orbit generated from Bernstein formalism
# Fitting   46 observations of   46
# Arc:   4.24y
# First observation: 2010/11/07
#  Last observation: 2015/02/02
Preliminary a, adot, b, bdot, g, gdot:
  -0.000449   0.027123  -0.000000  -0.005012   0.026556   0.000000
# Chi-squared of fit:    14.44 DOF:   86 RMS:  0.10
# Min/Max residuals:    -0.38    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.653776E-05  2.664078E-02 -2.957734E-06 -4.977929E-03  2.524945E-02 -2.793601E-03
# Covariance matrix:
  3.2886E-13 -2.6330E-13 -2.3025E-14  3.9547E-14 -1.6588E-13 -1.6745E-12
 -2.6330E-13  3.6865E-13  3.9475E-14 -6.7864E-14  2.3149E-13  2.8737E-12
 -2.3025E-14  3.9475E-14  1.9877E-13 -5.8492E-14  2.2857E-14  3.2803E-13
  3.9547E-14 -6.7864E-14 -5.8492E-14  2.9141E-14 -3.9144E-14 -5.6426E-13
 -1.6588E-13  2.3149E-13  2.2857E-14 -3.9144E-14  2.5847E-13  1.6571E-12
 -1.6745E-12  2.8737E-12  3.2803E-13 -5.6426E-13  1.6571E-12  2.3895E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.322372   57.665516    0.216528    0.022270   -0.964598  2455507.981936
# Heliocentric elements and errors
Epoch:              2455500.5000  =  2010/10/31
Mean Anomaly:          338.39600 +/-     0.027
Argument of Peri:      207.21764 +/-     0.047
Long of Asc Node:      244.23390 +/-     0.000
Inclination:            10.65309 +/-     0.000
Eccentricity:         0.22447158 +/-    0.0001
Semi-Major Axis:     50.65462250 +/-    0.0049
Time of Perihelion: 2463402.8951 +/-       9.9
Perihelion:          39.28409950 +/-    0.0073
Aphelion:            62.02514550 +/-    0.0086
Period (y)              360.5262 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           21.88010436 +/-    0.0004
Ecliptic Y           34.15352865 +/-    0.0007
Ecliptic Z            0.91385163 +/-    0.0000
Ecliptic XDOT        -0.00259633 +/-    0.0000
Ecliptic YDOT         0.00130604 +/-    0.0000
Ecliptic ZDOT        -0.00054662 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.57138907 +/-    0.0006
Geocenter to KBO     39.60482932 +/-    0.0008
# Hcoef:  5.56

The following table shows the complete astrometric record for 14UR224. 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 (14UR224) followed by the observatory code and reference code for the source of the astrometry.

2010 11  07.48117  03 40 18.357  +20 55 37.98  21.6w 14UR224   F51  C~1vXn      
2010 11  07.49466  03 40 18.286  +20 55 37.74  21.6w 14UR224   F51  C~1vXn      
2010 11  07.50938  03 40 18.210  +20 55 37.48  21.6w 14UR224   F51  C~1vXn      
2010 11  07.52285  03 40 18.144  +20 55 37.25  21.6w 14UR224   F51  C~1vXn      
2011 10  24.54802  03 48 06.796  +21 03 27.98  21.5w 14UR224   F51  C~1vXn      
2011 10  24.56326  03 48 06.730  +21 03 27.60  21.4w 14UR224   F51  C~1vXn      
2011 10  24.57843  03 48 06.661  +21 03 27.45  21.5w 14UR224   F51  C~1vXn      
2011 10  24.59371  03 48 06.588  +21 03 27.27  21.5w 14UR224   F51  C~1vXn      
2012 10  21.55761  03 54 59.099  +21 06 40.63  21.4w 14UR224   F51  C~1vXn      
2012 10  21.57365  03 54 59.039  +21 06 40.49  21.6w 14UR224   F51  C~1vXn      
2012 10  21.58973  03 54 58.958  +21 06 40.25  21.6w 14UR224   F51  C~1vXn      
2012 10  21.60588  03 54 58.900  +21 06 39.89  21.6w 14UR224   F51  C~1vXn      
2013 12  03.29274  03 58 11.617  +20 56 18.48  21.2w 14UR224   F51  C~1vXn      
2013 12  03.30688  03 58 11.544  +20 56 18.15  21.4w 14UR224   F51  C~1vXn      
2013 12  03.32100  03 58 11.465  +20 56 17.97  21.5w 14UR224   F51  C~1vXn      
2013 12  03.33518  03 58 11.397  +20 56 17.66  21.4w 14UR224   F51  C~1vXn      
2014 10  26.60519  04 08 10.746  +21 07 53.79  21.5w 14UR224   F51  C~1vXn      
2014 10  26.61360  04 08 10.727  +21 07 53.61  21.4w 14UR224   F51  C~1vXn      
2014 10  26.62197  04 08 10.677  +21 07 53.57  21.3w 14UR224   F51  C~1vXn      
2014 10  26.63041  04 08 10.643  +21 07 53.58  21.4w 14UR224   F51  C~1vXn      
2014 11  12.54613  04 06 49.319  +21 03 28.13  21.0i 14UR224   F51  C~1vXn      
2014 11  12.55886  04 06 49.243  +21 03 27.99  21.1i 14UR224   F51  C~1vXn      
2014 11  12.57161  04 06 49.163  +21 03 27.99  21.0i 14UR224   F51  C~1vXn      
2014 11  12.58434  04 06 49.111  +21 03 27.49  21.1i 14UR224   F51  C~1vXn      
2014 11  17.34425  04 06 24.405  +21 02 07.20  21.4w 14UR224   F51  C~1vXn      
2014 11  17.35719  04 06 24.333  +21 02 06.93  21.5w 14UR224   F51  C~1vXn      
2014 11  17.37005  04 06 24.272  +21 02 06.82  21.4w 14UR224   F51  C~1vXn      
2014 11  17.38291  04 06 24.196  +21 02 06.55  21.6w 14UR224   F51  C~1vXn      
2014 11  19.35726  04 06 13.819  +21 01 32.70  21.4w 14UR224   F51  C~1vXn      
2014 11  19.37012  04 06 13.746  +21 01 32.50  21.2w 14UR224   F51  C~1vXn      
2014 11  19.38292  04 06 13.659  +21 01 32.42  21.4w 14UR224   F51  C~1vXn      
2014 11  19.39575  04 06 13.590  +21 01 32.18  21.4w 14UR224   F51  C~1vXn      
2015 01  22.33646  04 01 36.477  +20 45 35.22  21.7w 14UR224   F51  C~1vXn      
2015 01  22.35041  04 01 36.450  +20 45 35.10  21.8w 14UR224   F51  C~1vXn      
2015 01  22.36438  04 01 36.414  +20 45 35.02  21.8w 14UR224   F51  C~1vXn      
2015 01  22.37827  04 01 36.385  +20 45 34.86  21.8w 14UR224   F51  C~1vXn      
2015 01  24.31898  04 01 32.354  +20 45 17.44  21.7w 14UR224   F51  C~1vXn      
2015 01  24.33350  04 01 32.322  +20 45 17.44  21.6w 14UR224   F51  C~1vXn      
2015 01  24.34799  04 01 32.298  +20 45 17.35  21.5w 14UR224   F51  C~1vXn      
2015 01  24.36253  04 01 32.257  +20 45 17.05  21.5w 14UR224   F51  C~1vXn      
2015 02  01.28428  04 01 19.783  +20 44 17.97  21.0i 14UR224   F51  C~1vXn      
2015 02  01.31193  04 01 19.737  +20 44 17.60  21.2i 14UR224   F51  C~1vXn      
2015 02  01.32574  04 01 19.731  +20 44 17.74  20.9i 14UR224   F51  C~1vXn      
2015 02  02.29126  04 01 18.663  +20 44 11.44  21.1i 14UR224   F51  C~1vXn      
2015 02  02.30455  04 01 18.634  +20 44 11.67  21.0i 14UR224   F51  C~1vXn      
2015 02  02.31797  04 01 18.596  +20 44 11.44  21.1i 14UR224   F51  C~1vXn      

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    -0.03
  2   0.0000     -1.02     0.01      -0.01    -0.01
  3   0.0001     -2.12     0.02      -0.02     0.01
  4   0.0001     -3.07     0.07      -0.03     0.03
  5   0.9612   6503.18    -0.09    -997.37     0.05
  6   0.9612   6502.19    -0.07    -997.54    -0.09
  7   0.9613   6501.22    -0.05    -997.48     0.00
  8   0.9613   6500.18    -0.08    -997.43     0.08
  9   1.9550  12197.14    -0.08   -2026.53    -0.04
 10   1.9551  12196.29     0.07   -2026.50     0.03
 11   1.9551  12195.13    -0.07   -2026.50     0.06
 12   1.9552  12194.26     0.07   -2026.69    -0.09
 13   3.0714  14721.73     0.09   -3186.45     0.03
 14   3.0714  14720.65     0.09   -3186.57    -0.05
 15   3.0714  14719.53     0.05   -3186.52     0.03
 16   3.0715  14718.53     0.13   -3186.64    -0.05
 17   3.9675  23160.12    -0.12   -4132.60    -0.06
 18   3.9675  23159.82     0.13   -4132.73    -0.16
 19   3.9675  23159.12    -0.03   -4132.64    -0.05
 20   3.9676  23158.65     0.05   -4132.54     0.08
 21   4.0139  21976.85     0.24   -4180.55    -0.08
 22   4.0139  21975.77     0.12   -4180.48     0.02
 23   4.0139  21974.66    -0.03   -4180.27     0.27
 24   4.0140  21973.84     0.12   -4180.63    -0.05
 25   4.0270  21615.03    -0.02   -4194.33    -0.00
 26   4.0270  21613.98    -0.07   -4194.41    -0.05
 27   4.0271  21613.11     0.05   -4194.36     0.04
 28   4.0271  21612.00    -0.06   -4194.42     0.01
 29   4.0325  21461.29     0.04   -4200.23    -0.08
 30   4.0326  21460.24    -0.01   -4200.23    -0.05
 31   4.0326  21459.01    -0.24   -4200.08     0.14
 32   4.0326  21458.01    -0.25   -4200.13     0.11
 33   4.2077  17426.89     0.02   -4391.51    -0.03
 34   4.2077  17426.50     0.08   -4391.55    -0.04
 35   4.2078  17425.98     0.03   -4391.53     0.03
 36   4.2078  17425.55     0.06   -4391.61    -0.01
 37   4.2131  17366.27    -0.00   -4397.61    -0.15
 38   4.2131  17365.82    -0.00   -4397.52    -0.02
 39   4.2132  17365.47     0.08   -4397.54     0.01
 40   4.2132  17364.85    -0.10   -4397.72    -0.13
 41   4.2349  17180.38     0.08   -4421.35     0.12
 42   4.2350  17179.67    -0.12   -4421.58    -0.04
 43   4.2350  17179.62     0.08   -4421.43     0.16
 44   4.2377  17163.58     0.09   -4424.67    -0.18
 45   4.2377  17163.23    -0.03   -4424.36     0.16
 46   4.2377  17162.65    -0.38   -4424.48     0.08

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.

14UR224    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        50.951    50.964    50.937
ecceobj         0.228     0.228     0.228
incobj         10.634    10.634    10.633
qmin           38.411    38.269    38.525
qmax           63.036    63.101    62.850
amean          50.415    50.410    50.415
amin           49.921    49.928    49.900
amax           51.006    51.023    51.004
emean           0.224     0.223     0.223
emin            0.212     0.210     0.211
emax            0.236     0.238     0.234
imean          11.875    11.832    11.940
imin           11.417    11.429    11.568
imax           12.248    12.365    12.246
excite_mean     0.304     0.303     0.304
fracstop        1.000     1.000     1.000
cjmean          3.065     3.066     3.065

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       182.8     188.8     179.5
kozaiamp        179.9     180.0     180.0