Orbit Fit and Astrometric record for 14EZ51

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: 14EZ51    
# Created Sat Oct 21 01:38:21 2017
# Orbit generated from Bernstein formalism
# Fitting   75 observations of   75
# Arc:   4.39y
# First observation: 2011/01/30
#  Last observation: 2015/06/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000120   0.013888   0.000029  -0.002240   0.017971   0.000000
# Chi-squared of fit:    28.38 DOF:  144 RMS:  0.11
# Min/Max residuals:    -0.36    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.180846E-05  1.345210E-02 -2.147095E-06 -2.163470E-03  1.749359E-02 -2.676072E-03
# Covariance matrix:
  2.0956E-13 -1.1247E-13 -1.4007E-14  1.5269E-14 -3.9546E-14 -1.2743E-12
 -1.1247E-13  2.6194E-13  5.7844E-14 -5.0333E-14  3.0728E-13  4.3602E-12
 -1.4007E-14  5.7844E-14  1.7115E-13 -5.6836E-14  7.4158E-14  1.0154E-12
  1.5269E-14 -5.0333E-14 -5.6836E-14  2.4977E-14 -6.0496E-14 -8.9153E-13
 -3.9546E-14  3.0728E-13  7.4158E-14 -6.0496E-14  4.3960E-13  5.3040E-12
 -1.2743E-12  4.3602E-12  1.0154E-12 -8.9153E-13  5.3040E-12  7.7106E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -4.472806 -125.784022    0.959570    0.018404    0.235489  2455592.135506
# Heliocentric elements and errors
Epoch:              2455590.5000  =  2011/01/29
Mean Anomaly:          257.89883 +/-     0.115
Argument of Peri:      331.73686 +/-     0.085
Long of Asc Node:       27.63537 +/-     0.001
Inclination:            10.29661 +/-     0.000
Eccentricity:         0.23038946 +/-    0.0005
Semi-Major Axis:     52.03136418 +/-    0.0141
Time of Perihelion: 2494470.3378 +/-      40.8
Perihelion:          40.04388630 +/-    0.0262
Aphelion:            64.01884206 +/-    0.0295
Period (y)              375.3237 +/-      0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -33.95929155 +/-    0.0013
Ecliptic Y          -45.47979706 +/-    0.0018
Ecliptic Z           -4.45809415 +/-    0.0002
Ecliptic XDOT         0.00196642 +/-    0.0000
Ecliptic YDOT        -0.00086482 +/-    0.0000
Ecliptic ZDOT        -0.00030489 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   56.93434839 +/-    0.0016
Geocenter to KBO     57.16380843 +/-    0.0022
# Hcoef:  3.94

The following table shows the complete astrometric record for 14EZ51. 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 (14EZ51) followed by the observatory code and reference code for the source of the astrometry.

2011 01  30.63474  15 22 36.366  -23 09 25.98  21.5w 14EZ51    F51  C~1vXI      
2011 01  30.64026  15 22 36.366  -23 09 26.01  21.4w 14EZ51    F51  C~1vXI      
2011 01  30.64645  15 22 36.378  -23 09 26.23  21.6w 14EZ51    F51  C~1vXI      
2011 01  30.65199  15 22 36.379  -23 09 26.33  21.6w 14EZ51    F51  C~1vXI      
2012 05  19.39199  15 22 09.220  -23 24 15.79  21.2w 14EZ51    F51  C~1vXI      
2012 05  19.40747  15 22 09.162  -23 24 15.64  21.2w 14EZ51    F51  C~1vXI      
2012 05  19.42295  15 22 09.101  -23 24 15.33  21.2w 14EZ51    F51  C~1vXI      
2012 05  19.43842  15 22 09.043  -23 24 15.22  21.1w 14EZ51    F51  C~1vXI      
2012 05  20.37746  15 22 05.401  -23 24 02.97  21.2w 14EZ51    F51  C~1vXI      
2012 05  20.39204  15 22 05.345  -23 24 02.62  21.3w 14EZ51    F51  C~1vXI      
2012 05  20.40662  15 22 05.284  -23 24 02.47  21.3w 14EZ51    F51  C~1vXI      
2012 05  20.42122  15 22 05.228  -23 24 02.25  21.3w 14EZ51    F51  C~1vXI      
2013 05  11.41181  15 25 53.641  -23 45 20.35  21.2w 14EZ51    F51  C~1vXI      
2013 05  11.42567  15 25 53.578  -23 45 20.22  21.3w 14EZ51    F51  C~1vXI      
2013 05  11.43953  15 25 53.534  -23 45 20.09  21.3w 14EZ51    F51  C~1vXI      
2013 06  01.36071  15 24 32.575  -23 40 50.25  21.2w 14EZ51    F51  C~1vXI      
2013 06  01.37552  15 24 32.510  -23 40 50.05  21.3w 14EZ51    F51  C~1vXI      
2013 06  01.39032  15 24 32.455  -23 40 49.81  21.4w 14EZ51    F51  C~1vXI      
2013 06  01.40514  15 24 32.396  -23 40 49.74  21.3w 14EZ51    F51  C~1vXI      
2014 03  12.55065  15 32 09.235  -24 10 23.08  21.0i 14EZ51    F51  C~1vXI      
2014 03  12.56191  15 32 09.200  -24 10 22.85  20.9i 14EZ51    F51  C~1vXJ      
2014 03  12.59191  15 32 09.176  -24 10 23.09  21.3w 14EZ51    F51  C~1vXJ      
2014 03  12.60385  15 32 09.154  -24 10 23.21  21.2w 14EZ51    F51  C~1vXJ      
2014 03  12.61578  15 32 09.148  -24 10 22.71  21.3w 14EZ51    F51  C~1vXJ      
2014 03  12.62770  15 32 09.114  -24 10 22.77  21.4w 14EZ51    F51  C~1vXJ      
2014 05  08.47100  15 29 20.763  -24 05 08.96  21.4w 14EZ51    F51  C~1vXJ      
2014 05  08.48310  15 29 20.715  -24 05 08.80  21.2w 14EZ51    F51  C~1vXJ      
2014 05  08.49522  15 29 20.668  -24 05 08.62  21.3w 14EZ51    F51  C~1vXJ      
2014 05  08.50732  15 29 20.621  -24 05 08.49  21.3w 14EZ51    F51  C~1vXJ      
2014 05  10.46778  15 29 12.917  -24 04 46.14  21.0i 14EZ51    F51  C~1vXJ      
2014 05  10.47991  15 29 12.876  -24 04 46.05  20.9i 14EZ51    F51  C~1vXJ      
2014 05  10.49200  15 29 12.838  -24 04 45.82  20.7i 14EZ51    F51  C~1vXJ      
2014 05  10.50411  15 29 12.747  -24 04 45.79  20.7i 14EZ51    F51  C~1vXJ      
2014 05  30.34258  15 27 55.122  -24 00 37.37  21.4w 14EZ51    F51  C~1vXJ      
2014 05  30.35316  15 27 55.071  -24 00 37.23  21.2w 14EZ51    F51  C~1vXJ      
2014 05  30.36373  15 27 55.030  -24 00 37.18  21.3w 14EZ51    F51  C~1vXJ      
2014 05  30.37431  15 27 54.973  -24 00 36.96  21.3w 14EZ51    F51  C~1vXJ      
2014 05  30.38299  15 27 54.973  -24 00 36.65  21.2w 14EZ51    F51  C~1vXJ      
2014 05  30.39357  15 27 54.929  -24 00 36.51  21.3w 14EZ51    F51  C~1vXJ      
2014 05  30.40414  15 27 54.892  -24 00 36.61  21.3w 14EZ51    F51  C~1vXJ      
2014 05  30.41471  15 27 54.844  -24 00 36.38  21.3w 14EZ51    F51  C~1vXJ      
2014 06  07.37229  15 27 25.269  -23 58 50.82  21.4r 14EZ51    F51  C~1vXJ      
2014 06  07.38288  15 27 25.236  -23 58 50.51  21.0r 14EZ51    F51  C~1vXJ      
2014 06  07.39346  15 27 25.198  -23 58 50.44  20.8r 14EZ51    F51  C~1vXJ      
2014 06  19.33881  15 26 44.513  -23 56 13.98  21.6w 14EZ51    F51  C~1vXJ      
2014 06  19.34941  15 26 44.480  -23 56 13.96  21.4w 14EZ51    F51  C~1vXJ      
2014 06  19.35999  15 26 44.442  -23 56 13.66  21.3w 14EZ51    F51  C~1vXJ      
2014 06  19.37058  15 26 44.411  -23 56 13.54  21.3w 14EZ51    F51  C~1vXJ      
2014 06  27.32443  15 26 20.587  -23 54 34.09  21.5w 14EZ51    F51  C~1vXJ      
2014 06  27.33577  15 26 20.549  -23 54 33.80  21.5w 14EZ51    F51  C~1vXJ      
2014 06  27.34707  15 26 20.522  -23 54 33.72  21.3w 14EZ51    F51  C~1vXJ      
2014 06  27.35849  15 26 20.493  -23 54 33.60  21.5w 14EZ51    F51  C~1vXJ      
2014 07  01.31908  15 26 09.812  -23 53 46.16  21.5w 14EZ51    F51  C~1vXJ      
2014 07  01.33034  15 26 09.776  -23 53 46.08  21.5w 14EZ51    F51  C~1vXJ      
2014 07  01.34161  15 26 09.751  -23 53 45.99  21.8w 14EZ51    F51  C~1vXJ      
2014 07  01.35288  15 26 09.723  -23 53 45.81  21.5w 14EZ51    F51  C~1vXJ      
2015 04  02.55366  15 34 42.568  -24 28 45.65  20.9i 14EZ51    F51  C~1vXJ      
2015 04  02.56448  15 34 42.520  -24 28 45.66  21.0i 14EZ51    F51  C~1vXJ      
2015 04  02.57526  15 34 42.504  -24 28 45.49  21.0i 14EZ51    F51  C~1vXJ      
2015 04  18.49741  15 33 53.310  -24 27 18.94  21.1w 14EZ51    F51  C~1vXJ      
2015 04  18.50806  15 33 53.269  -24 27 18.74  21.4w 14EZ51    F51  C~1vXJ      
2015 04  18.51868  15 33 53.239  -24 27 18.68  21.3w 14EZ51    F51  C~1vXJ      
2015 04  18.52940  15 33 53.187  -24 27 18.70  21.5w 14EZ51    F51  C~1vXJ      
2015 04  20.49258  15 33 46.378  -24 27 03.88  21.4w 14EZ51    F51  C~1vXJ      
2015 04  20.50330  15 33 46.340  -24 27 03.97  21.2w 14EZ51    F51  C~1vXJ      
2015 04  20.51399  15 33 46.283  -24 27 03.78  21.3w 14EZ51    F51  C~1vXJ      
2015 04  20.52474  15 33 46.232  -24 27 03.69  21.3w 14EZ51    F51  C~1vXJ      
2015 05  29.37801  15 31 16.370  -24 20 02.32  20.9i 14EZ51    F51  C~1vXJ      
2015 05  29.38860  15 31 16.326  -24 20 02.13  20.8i 14EZ51    F51  C~1vXJ      
2015 05  29.39962  15 31 16.286  -24 20 02.03  20.7i 14EZ51    F51  C~1vXJ      
2015 05  29.41019  15 31 16.237  -24 20 01.95  20.7i 14EZ51    F51  C~1vXJ      
2015 06  22.37799  15 29 51.312  -24 14 50.29  21.1i 14EZ51    F51  C~1vXJ      
2015 06  22.38831  15 29 51.277  -24 14 50.30  20.9i 14EZ51    F51  C~1vXJ      
2015 06  22.39867  15 29 51.252  -24 14 50.10  21.2i 14EZ51    F51  C~1vXJ      
2015 06  22.40903  15 29 51.212  -24 14 49.84  20.8i 14EZ51    F51  C~1vXJ      

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     0.07       0.00     0.04
  2   0.0000      0.01    -0.04      -0.03     0.05
  3   0.0000      0.22     0.03      -0.20    -0.09
  4   0.0000      0.26    -0.05      -0.29    -0.14
  5   1.2998   -136.40    -0.03    -955.55     0.07
  6   1.2999   -137.21     0.02    -955.61     0.03
  7   1.2999   -138.10    -0.00    -955.52     0.14
  8   1.2999   -138.90     0.06    -955.62     0.06
  9   1.3025   -190.50     0.07    -956.49    -0.01
 10   1.3026   -191.34     0.04    -956.35     0.15
 11   1.3026   -192.19     0.01    -956.42     0.10
 12   1.3026   -192.99     0.02    -956.40     0.13
 13   2.2773   3167.59     0.09   -1406.71     0.01
 14   2.2773   3166.72    -0.00   -1406.80    -0.05
 15   2.2774   3166.10     0.16   -1406.82    -0.04
 16   2.3346   2021.90    -0.03   -1421.79     0.01
 17   2.3347   2020.99    -0.15   -1421.82    -0.02
 18   2.3347   2020.19    -0.14   -1421.77     0.03
 19   2.3348   2019.39    -0.15   -1421.91    -0.11
 20   3.1127   8531.24     0.10   -1618.88    -0.20
 21   3.1127   8530.72    -0.21   -1618.77    -0.01
 22   3.1128   8530.46     0.11   -1619.08    -0.13
 23   3.1129   8530.19     0.08   -1619.27    -0.24
 24   3.1129   8530.00     0.11   -1618.80     0.30
 25   3.1129   8529.56    -0.10   -1618.97     0.21
 26   3.2685   6213.75     0.10   -1865.27    -0.03
 27   3.2686   6213.07     0.10   -1865.27    -0.00
 28   3.2686   6212.40     0.10   -1865.26     0.04
 29   3.2686   6211.74     0.12   -1865.28     0.04
 30   3.2740   6103.87    -0.01   -1869.08    -0.06
 31   3.2740   6103.30     0.10   -1869.13    -0.08
 32   3.2741   6102.74     0.21   -1869.03     0.04
 33   3.2741   6101.52    -0.32   -1869.30    -0.21
 34   3.3284   5008.85    -0.01   -1886.47    -0.10
 35   3.3285   5008.14    -0.15   -1886.50    -0.13
 36   3.3285   5007.58    -0.13   -1886.59    -0.22
 37   3.3285   5006.77    -0.36   -1886.57    -0.19
 38   3.3285   5006.70     0.04   -1886.27     0.11
 39   3.3286   5006.08     0.00   -1886.28     0.10
 40   3.3286   5005.61     0.11   -1886.50    -0.12
 41   3.3286   5004.91    -0.00   -1886.44    -0.06
 42   3.3504   4585.88    -0.13   -1883.09     0.02
 43   3.3504   4585.36    -0.09   -1882.90     0.20
 44   3.3505   4584.84    -0.06   -1882.96     0.14
 45   3.3832   4005.53    -0.00   -1868.10    -0.00
 46   3.3832   4005.08     0.04   -1868.19    -0.11
 47   3.3832   4004.50    -0.05   -1868.03     0.04
 48   3.3833   4004.06     0.00   -1868.01     0.03
 49   3.4050   3662.84     0.04   -1852.06    -0.17
 50   3.4051   3662.26    -0.07   -1851.91    -0.04
 51   3.4051   3661.88     0.01   -1851.92    -0.08
 52   3.4051   3661.47     0.07   -1851.91    -0.08
 53   3.4160   3507.76     0.04   -1842.07     0.03
 54   3.4160   3507.27    -0.03   -1842.12    -0.04
 55   3.4160   3506.91     0.04   -1842.11    -0.07
 56   3.4161   3506.49     0.06   -1842.04    -0.02
 57   4.1695  10832.46     0.15   -2200.37    -0.01
 58   4.1696  10831.83    -0.08   -2200.54    -0.12
 59   4.1696  10831.58     0.08   -2200.42     0.05
 60   4.2132  10156.49     0.02   -2272.66     0.00
 61   4.2132  10155.89    -0.06   -2272.59     0.11
 62   4.2132  10155.48     0.04   -2272.63     0.12
 63   4.2133  10154.79    -0.12   -2272.81    -0.02
 64   4.2186  10060.70     0.05   -2280.13     0.12
 65   4.2187  10060.22     0.09   -2280.34    -0.05
 66   4.2187  10059.42    -0.18   -2280.33    -0.00
 67   4.2187  10058.72    -0.35   -2280.41    -0.04
 68   4.3251   7965.71     0.07   -2353.79     0.07
 69   4.3251   7965.08     0.02   -2353.75     0.11
 70   4.3252   7964.53     0.08   -2353.78     0.08
 71   4.3252   7963.86    -0.01   -2353.87     0.00
 72   4.3908   6760.29     0.08   -2329.02     0.12
 73   4.3908   6759.83     0.08   -2329.14    -0.03
 74   4.3909   6759.45     0.17   -2329.03     0.06
 75   4.3909   6758.86     0.04   -2328.91     0.16

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.

14EZ51    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        51.831    51.871    51.791
ecceobj         0.232     0.233     0.231
incobj         10.312    10.312    10.312
qmin           39.453    39.350    39.530
qmax           65.391    65.686    65.293
amean          52.181    52.251    52.142
amin           51.698    51.733    51.626
amax           52.759    52.848    52.715
emean           0.229     0.231     0.228
emin            0.218     0.220     0.217
emax            0.240     0.244     0.240
imean           9.803     9.788     9.806
imin            9.425     9.368     9.432
imax           10.198    10.206    10.197
excite_mean     0.286     0.287     0.285
fracstop        1.000     1.000     1.000
cjmean          3.102     3.102     3.103

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       183.6     181.0     182.9
kozaiamp        180.0     180.0     180.0