Orbit Fit and Astrometric record for 14GC54

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: 14GC54    
# Created Tue Oct 24 01:38:22 2017
# Orbit generated from Bernstein formalism
# Fitting   58 observations of   65
# Arc:  11.24y
# First observation: 2013/04/22
#  Last observation: 2015/06/10
Preliminary a, adot, b, bdot, g, gdot:
  -0.037427   0.052071   0.007158  -0.010018   0.039212   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:  9999.99 DOF:  110 RMS: 19.68
# Min/Max residuals:   -44.44   53.09
# Exact a, adot, b, bdot, g, gdot:
 -2.594869E-02  5.030422E-02  5.485773E-03 -9.851677E-03  3.749318E-02  5.184128E-03
# Covariance matrix:
  9.0730E-10 -1.7280E-10 -1.8771E-10  3.4485E-11 -7.0796E-11 -1.6713E-10
 -1.7280E-10  3.2967E-11  3.5866E-11 -6.5895E-12  1.3547E-11  3.1938E-11
 -1.8771E-10  3.5866E-11  4.4783E-11 -7.7248E-12  1.4755E-11  3.4800E-11
  3.4485E-11 -6.5895E-12 -7.7248E-12  1.3714E-12 -2.7121E-12 -6.3939E-12
 -7.0796E-11  1.3547E-11  1.4755E-11 -2.7121E-12  5.6506E-12  1.3155E-11
 -1.6713E-10  3.1938E-11  3.4800E-11 -6.3939E-12  1.3155E-11  3.0991E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   17.652415 -168.918633    0.272491    0.288896   -0.907664  2453079.811363
# Heliocentric elements and errors
Epoch:              2453070.5000  =  2004/03/06
Mean Anomaly:            7.51935 +/-     0.005
Argument of Peri:      104.17762 +/-     0.014
Long of Asc Node:       67.37704 +/-     0.000
Inclination:            20.13595 +/-     0.000
Eccentricity:         0.33113598 +/-    0.0001
Semi-Major Axis:     40.87394553 +/-    0.0033
Time of Perihelion: 2451076.8629 +/-       1.3
Perihelion:          27.33911149 +/-    0.0045
Aphelion:            54.40877958 +/-    0.0059
Period (y)              261.3232 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -26.02211730 +/-    0.0015
Ecliptic Y           -4.11056194 +/-    0.0011
Ecliptic Z            8.22736190 +/-    0.0004
Ecliptic XDOT         0.00013445 +/-    0.0000
Ecliptic YDOT        -0.00372290 +/-    0.0000
Ecliptic ZDOT        -0.00057059 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   27.59957956 +/-    0.0014
Geocenter to KBO     26.68089408 +/-    0.0017
# Hcoef:  7.21

The following table shows the complete astrometric record for 14GC54. 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 (14GC54) followed by the observatory code and reference code for the source of the astrometry.

2004 03  15.31062  13 08 37.07   +11 51 03.1   21.6R 14GC54    644  C~1w1B      
2004 03  15.38164  13 08 36.64   +11 51 06.4   21.7R 14GC54    644  C~1w1B      
2004 03  15.45562  13 08 36.21   +11 51 09.5   21.7R 14GC54    644  C~1w1B      
2012 04  27.48810  14 13 35.357  -00 03 48.18  21.5r 14GC54    F51  C~1vXN      
2012 04  27.49844  14 13 35.273  -00 03 47.95  21.5r 14GC54    F51  C~1vXN      
2012 04  27.51088  14 13 35.201  -00 03 47.82  21.2i 14GC54    F51  C~1vXN      
2012 04  27.52221  14 13 35.122  -00 03 47.39  21.0i 14GC54    F51  C~1vXN      
2013 04  22.38286  14 22 39.803  -01 39 00.89  21.1i 14GC54    F51  C~1vXN      
2013 04  22.39472  14 22 39.735  -01 39 00.50  20.9i 14GC54    F51  C~1vXN      
2013 04  22.45239  14 22 39.370  -01 38 58.93  21.2r 14GC54    F51  C~1vXN      
2013 04  22.46341  14 22 39.288  -01 38 58.59  21.6r 14GC54    F51  C~1vXN      
2013 05  10.38377  14 20 44.481  -01 32 10.30  21.5w 14GC54    F51  C~1vXN      
2013 05  10.39864  14 20 44.387  -01 32 10.05  21.5w 14GC54    F51  C~1vXN      
2013 05  10.41352  14 20 44.292  -01 32 09.84  21.5w 14GC54    F51  C~1vXN      
2013 05  10.42835  14 20 44.199  -01 32 09.48  21.6w 14GC54    F51  C~1vXN      
2014 04  04.49681  14 32 59.077  -03 20 06.99  21.8w 14GC54    F51  C~1vXN      
2014 04  04.51017  14 32 59.013  -03 20 06.48  21.8w 14GC54    F51  C~1vXN      
2014 04  04.52354  14 32 58.945  -03 20 05.96  21.6w 14GC54    F51  C~1vXN      
2014 04  04.53696  14 32 58.857  -03 20 05.69  21.9w 14GC54    F51  C~1vXN      
2014 04  29.35352  14 30 25.528  -03 08 33.31  21.7w 14GC54    F51  C~1vXN      
2014 04  29.36607  14 30 25.447  -03 08 32.97  21.7w 14GC54    F51  C~1vXN      
2014 04  29.37864  14 30 25.362  -03 08 32.80  21.5w 14GC54    F51  C~1vXN      
2014 04  29.39122  14 30 25.279  -03 08 32.45  21.5w 14GC54    F51  C~1vXN      
2014 05  07.34901  14 29 33.961  -03 05 35.02  21.0i 14GC54    F51  C~1vXN      
2014 05  07.36159  14 29 33.870  -03 05 34.90  21.1i 14GC54    F51  C~1vXN      
2014 05  07.37418  14 29 33.789  -03 05 34.70  21.2i 14GC54    F51  C~1vXN      
2014 05  07.38677  14 29 33.708  -03 05 34.42  20.9i 14GC54    F51  C~1vXN      
2014 05  16.36333  14 28 37.195  -03 02 52.75  21.2i 14GC54    F51  C~1vXN      
2014 05  16.38791  14 28 37.041  -03 02 52.68  21.4i 14GC54    F51  C~1vXN      
2014 05  16.40022  14 28 36.976  -03 02 52.30  21.2i 14GC54    F51  C~1vXN      
2014 05  17.44463  14 28 30.562  -03 02 36.25  21.4i 14GC54    F51  C~1vXN      
2014 05  17.45665  14 28 30.495  -03 02 36.43  21.0i 14GC54    F51  C~1vXN      
2014 05  17.46868  14 28 30.410  -03 02 36.46  21.1i 14GC54    F51  C~1vXN      
2014 05  17.48071  14 28 30.344  -03 02 35.83  21.1i 14GC54    F51  C~1vXN      
2014 05  21.38722  14 28 06.813  -03 01 42.69  21.4w 14GC54    F51  C~1vXN      
2014 05  21.39924  14 28 06.743  -03 01 42.54  21.5w 14GC54    F51  C~1vXN      
2014 05  21.41123  14 28 06.667  -03 01 42.46  21.4w 14GC54    F51  C~1vXN      
2014 05  21.42321  14 28 06.592  -03 01 42.23  21.4w 14GC54    F51  C~1vXN      
2015 01  28.62129  14 43 43.253  -05 14 05.19  21.6w 14GC54    F51  C~1vXN      
2015 01  28.63354  14 43 43.269  -05 14 05.12  21.7w 14GC54    F51  C~1vXN      
2015 01  28.64581  14 43 43.300  -05 14 05.16  21.5w 14GC54    F51  C~1vXN      
2015 01  28.65812  14 43 43.323  -05 14 05.16  21.6w 14GC54    F51  C~1vXN      
2015 01  30.59001  14 43 47.128  -05 13 55.27  21.9w 14GC54    F51  C~1vXN      
2015 01  30.60205  14 43 47.168  -05 13 54.96  22.0w 14GC54    F51  C~1vXN      
2015 01  30.61414  14 43 47.190  -05 13 55.11  21.9w 14GC54    F51  C~1vXN      
2015 01  30.62624  14 43 47.210  -05 13 54.90  21.7w 14GC54    F51  C~1vXN      
2015 02  23.60362  14 43 52.684  -05 08 42.37  21.9w 14GC54    F51  C~1vXN      
2015 02  23.61665  14 43 52.663  -05 08 42.21  21.9w 14GC54    F51  C~1vXN      
2015 02  23.62969  14 43 52.644  -05 08 41.85  21.8w 14GC54    F51  C~1vXN      
2015 02  23.64275  14 43 52.622  -05 08 41.69  21.8w 14GC54    F51  C~1vXN      
2015 03  21.52847  14 42 36.699  -04 58 11.01  21.7w 14GC54    F51  C~1vXN      
2015 03  21.54137  14 42 36.639  -04 58 10.60  21.7w 14GC54    F51  C~1vXN      
2015 03  21.55408  14 42 36.591  -04 58 10.29  21.6w 14GC54    F51  C~1vXN      
2015 03  21.56684  14 42 36.536  -04 58 09.88  21.6w 14GC54    F51  C~1vXN      
2015 05  25.32391  14 36 12.059  -04 32 30.46  21.1i 14GC54    F51  C~1vXN      
2015 05  25.33683  14 36 11.978  -04 32 30.25  21.1i 14GC54    F51  C~1vXN      
2015 05  25.34972  14 36 11.902  -04 32 30.13  21.0i 14GC54    F51  C~1vXN      
2015 05  25.36260  14 36 11.820  -04 32 29.93  21.5i 14GC54    F51  C~1vXN      
2015 05  26.32013  14 36 06.223  -04 32 19.58  21.0i 14GC54    F51  C~1vXN      
2015 05  26.33299  14 36 06.160  -04 32 19.36  21.3i 14GC54    F51  C~1vXN      
2015 05  26.34589  14 36 06.087  -04 32 19.18  21.3i 14GC54    F51  C~1vXN      
2015 05  26.35886  14 36 06.001  -04 32 19.01  21.1i 14GC54    F51  C~1vXN      
2015 06  10.117276 14 34 47.37   -04 30 50.6   22.7V 14GC54    H21  C~1w1B      
2015 06  10.129421 14 34 47.27   -04 30 51.0   22.6V 14GC54    H21  C~1w1B      
2015 06  10.141755 14 34 47.21   -04 30 51.6   22.2V 14GC54    H21  C~1w1B      

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 (5356.69)      0.00 (*******)
  2   0.0002     -7.10 (5356.83)      0.51 (*******)
  3   0.0004    -14.13 (5357.34)      0.83 (*******)
  4   8.1182  73682.12 ( 231.26) -15421.05 ( -48.78)
  5   8.1182  73680.72 ( 231.04) -15421.38 ( -48.91)
  6   8.1183  73679.56 ( 231.28) -15421.73 ( -49.01)
  7   8.1183  73678.14 ( 231.15) -15421.84 ( -48.89)
  8   9.1036  85013.93    36.76  -17402.12   -11.45
  9   9.1036  85012.65    36.88  -17402.19   -11.31
 10   9.1037  85006.07    37.12  -17403.07   -11.21
 11   9.1038  85004.60    36.95  -17403.29   -11.23
 12   9.1528  82986.27    53.01  -17766.00    -7.86
 13   9.1529  82984.67    53.04  -17766.38    -7.87
 14   9.1529  82983.07    53.09  -17766.81    -7.92
 15   9.1530  82981.42    53.08  -17767.07    -7.81
 16  10.0539  98233.08   -44.44  -19334.84     4.31
 17  10.0539  98231.74   -44.27  -19334.76     4.51
 18  10.0540  98230.34   -44.18  -19334.69     4.69
 19  10.0540  98228.73   -44.27  -19335.01     4.48
 20  10.1220  95331.16   -31.07  -19665.97     5.54
 21  10.1220  95329.65   -31.06  -19666.17     5.59
 22  10.1220  95328.17   -31.02  -19666.57     5.44
 23  10.1221  95326.62   -31.04  -19666.77     5.49
 24  10.1438  94392.58   -27.17  -19832.24     6.09
 25  10.1439  94391.03   -27.24  -19832.73     5.89
 26  10.1439  94389.60   -27.19  -19833.07     5.84
 27  10.1439  94388.13   -27.18  -19833.33     5.88
 28  10.1685  93381.07   -23.73  -20049.29     6.55
 29  10.1686  93378.53   -23.55  -20050.25     6.24
 30  10.1686  93377.27   -23.45  -20050.30     6.51
 31  10.1715  93264.42   -23.23  -20077.10     6.77
 32  10.1715  93263.43   -22.91  -20077.74     6.46
 33  10.1715  93262.06   -22.96  -20078.34     6.18
 34  10.1716  93260.65   -23.05  -20078.14     6.70
 35  10.1823  92850.09   -21.52  -20182.22     6.77
 36  10.1823  92848.87   -21.47  -20182.54     6.79
 37  10.1823  92847.60   -21.49  -20182.96     6.69
 38  10.1824  92846.26   -21.57  -20183.23     6.76
 39  10.8729 113017.55     2.54  -22056.41     0.82
 40  10.8729 113017.79     2.39  -22056.23     0.77
 41  10.8729 113018.36     2.56  -22056.06     0.72
 42  10.8730 113018.76     2.57  -22055.90     0.65
 43  10.8782 113079.60     3.02  -22019.48     0.47
 44  10.8783 113080.12     3.22  -22018.88     0.85
 45  10.8783 113080.59     3.36  -22018.89     0.63
 46  10.8783 113080.82     3.27  -22018.53     0.77
 47  10.9440 112995.83    11.62  -21650.80     0.07
 48  10.9440 112995.37    11.65  -21650.78    -0.04
 49  10.9441 112994.83    11.60  -21650.53     0.07
 50  10.9441 112994.35    11.61  -21650.51    -0.05
 51  11.0150 111307.61    18.05  -21503.90    -1.01
 52  11.0150 111306.33    17.98  -21503.88    -0.97
 53  11.0150 111305.32    18.17  -21503.88    -0.96
 54  11.0151 111304.13    18.17  -21503.83    -0.89
 55  11.1924 103848.65    19.32  -22501.59    -5.87
 56  11.1924 103847.16    19.22  -22501.92    -5.83
 57  11.1924 103845.81    19.25  -22502.30    -5.85
 58  11.1925 103844.31    19.14  -22502.65    -5.83
 59  11.1951 103744.04    19.00  -22529.61    -6.17
 60  11.1951 103742.85    19.17  -22529.80    -5.99
 61  11.1952 103741.52    19.21  -22530.11    -5.93
 62  11.1952 103739.98    19.04  -22530.51    -5.96
 63  11.2356 102366.76    18.65  -22967.56    -7.01
 64  11.2356 102365.31    18.20  -22968.64    -7.71
 65  11.2357 102364.63    18.54  -22969.67    -8.35

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.

14GC54    quality flag:3

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

axisobj        39.045    39.045    39.045
ecceobj         0.253     0.253     0.253
incobj         20.185    20.185    20.185
qmin           28.013    28.010    28.014
qmax           51.638    51.630    51.633
amean          39.455    39.455    39.455
amin           38.963    38.965    38.944
amax           40.023    40.026    40.015
emean           0.244     0.244     0.244
emin            0.193     0.193     0.193
emax            0.291     0.291     0.291
imean          19.647    19.646    19.650
imin           18.042    18.043    18.046
imax           21.502    21.498    21.500
excite_mean     0.416     0.417     0.416
fracstop        1.000     1.000     1.000
cjmean          2.853     2.853     2.853

libcent 0       181.1     180.8     181.1
libamp  0       106.9     107.2     106.9
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        91.9      92.1      91.9
kozaiamp         47.7      47.4      47.7