Orbit Fit and Astrometric record for 14GR53

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: 14GR53    
# Created Sun Oct 22 01:38:22 2017
# Orbit generated from Bernstein formalism
# Fitting   59 observations of   60
# Arc:  12.94y
# First observation: 2004/05/23
#  Last observation: 2017/05/02
Preliminary a, adot, b, bdot, g, gdot:
  -0.080143   0.081362   0.029500  -0.038992   0.073437   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:  9999.99 DOF:  112 RMS: 99.99
# Min/Max residuals: -6220.92 9999.99
# Exact a, adot, b, bdot, g, gdot:
  6.777875E-03  4.647611E-02  1.763642E-02 -2.480192E-02  5.028200E-02 -1.016214E-02
# Covariance matrix:
  2.7866E-13 -3.6617E-14 -2.6981E-14  8.0449E-15 -2.2688E-14 -1.4764E-14
 -3.6617E-14  6.6431E-15  7.1664E-15 -2.2225E-15  3.6330E-15  4.1836E-15
 -2.6981E-14  7.1664E-15  2.3007E-13 -2.4355E-14  9.5319E-15  6.6490E-15
  8.0449E-15 -2.2225E-15 -2.4355E-14  3.1683E-15 -2.3712E-15 -2.0475E-15
 -2.2688E-14  3.6330E-15  9.5319E-15 -2.3712E-15  2.1165E-14  3.7753E-15
 -1.4764E-14  4.1836E-15  6.6490E-15 -2.0475E-15  3.7753E-15  3.8373E-15
#      lat0       lon0       xBary       yBary       zBary        JD0
   34.194623 -177.018456   -0.874000    0.287310   -0.422776  2453148.773429
# Heliocentric elements and errors
Epoch:              2453140.5000  =  2004/05/15
Mean Anomaly:          205.48806 +/-     0.001
Argument of Peri:      294.61394 +/-     0.000
Long of Asc Node:       51.04559 +/-     0.000
Inclination:            44.17914 +/-     0.000
Eccentricity:         0.43208591 +/-    0.0000
Semi-Major Axis:     14.41489357 +/-    0.0001
Time of Perihelion: 2461720.2598 +/-       0.0
Perihelion:           8.18642118 +/-    0.0001
Aphelion:            20.64336596 +/-    0.0001
Period (y)               54.7300 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -16.69268626 +/-    0.0000
Ecliptic Y           -1.87751867 +/-    0.0000
Ecliptic Z           11.46723270 +/-    0.0000
Ecliptic XDOT        -0.00017194 +/-    0.0000
Ecliptic YDOT        -0.00254983 +/-    0.0000
Ecliptic ZDOT        -0.00142786 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   20.33883666 +/-    0.0000
Geocenter to KBO     19.89138184 +/-    0.0001
# Hcoef:  9.59

The following table shows the complete astrometric record for 14GR53. 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 (14GR53) followed by the observatory code and reference code for the source of the astrometry.

2004 05  23.272686 13 10 39.10   +29 54 06.9   22.8V 14GR53    645  C~2Fa8      
2004 05  23.273515 13 10 39.10   +29 54 06.8   22.5V 14GR53    645  C~2Fa8      
2004 05  23.276003 13 10 39.08   +29 54 06.8   23.4V 14GR53    645  C~2Fa8      
2004 12  21.514114 13 29 09.89   +26 04 41.8   22.5V 14GR53    645  C~2Fa8      
2004 12  21.514943 13 29 09.89   +26 04 41.8   22.5V 14GR53    645  C~2Fa8      
2004 12  21.517431 13 29 09.90   +26 04 41.6   23.0V 14GR53    645  C~2Fa8      
2013 03  10.346678 14 37 56.57   +01 12 47.4   22.4r 14GR53    309  C~2HP4      
2013 03  10.352673 14 37 56.54   +01 12 47.6   22.3r 14GR53    309  C~2HP4      
2013 03  10.357361 14 37 56.53   +01 12 47.7   22.4r 14GR53    309  C~2HP4      
2013 03  10.367419 14 37 56.47   +01 12 48.1   22.4r 14GR53    309  C~2HP4      
2013 07  12.040509 14 24 40.86   +01 02 45.6   22.5r 14GR53    309  C~2HP4      
2013 07  12.045196 14 24 40.85   +01 02 45.3   22.5r 14GR53    309  C~2HP4      
2013 07  12.049884 14 24 40.84   +01 02 45.0   22.4r 14GR53    309  C~2HP4      
2013 07  12.054571 14 24 40.83   +01 02 44.8   22.3r 14GR53    309  C~2HP4      
2013 07  12.059259 14 24 40.83   +01 02 44.5   22.4r 14GR53    309  C~2HP4      
2014 04  04.49878  14 44 57.029  -02 29 25.35  21.7w 14GR53    F51  C~1vXL      
2014 04  04.51214  14 44 56.929  -02 29 25.05  21.6w 14GR53    F51  C~1vXL      
2014 04  04.52550  14 44 56.826  -02 29 24.95  21.8w 14GR53    F51  C~1vXL      
2014 04  04.53893  14 44 56.749  -02 29 24.49  21.8w 14GR53    F51  C~1vXL      
2014 05  07.35033  14 40 28.978  -02 21 25.21  21.3i 14GR53    F51  C~1vXL      
2014 05  07.36291  14 40 28.864  -02 21 25.14  21.2i 14GR53    F51  C~1vXL      
2014 05  07.37549  14 40 28.758  -02 21 25.08  21.3i 14GR53    F51  C~1vXL      
2014 05  07.38810  14 40 28.642  -02 21 25.03  21.2i 14GR53    F51  C~1vXL      
2014 05  16.37969  14 39 12.903  -02 20 58.42  21.1i 14GR53    F51  C~1vXL      
2014 05  16.39199  14 39 12.796  -02 20 58.62  21.4i 14GR53    F51  C~1vXL      
2014 05  16.40430  14 39 12.688  -02 20 58.67  21.1i 14GR53    F51  C~1vXL      
2014 05  21.39117  14 38 31.983  -02 21 10.45  21.6w 14GR53    F51  C~1vXL      
2014 05  21.40319  14 38 31.885  -02 21 10.49  21.8w 14GR53    F51  C~1vXL      
2014 05  21.41518  14 38 31.799  -02 21 10.62  21.7w 14GR53    F51  C~1vXL      
2014 05  21.42716  14 38 31.690  -02 21 10.70  21.8w 14GR53    F51  C~1vXL      
2014 06  20.34322  14 35 08.851  -02 30 01.11  21.7w 14GR53    F51  C~1vXL      
2014 06  20.35632  14 35 08.775  -02 30 01.89  21.4w 14GR53    F51  C~1vXL      
2014 06  20.36945  14 35 08.718  -02 30 02.31  21.4w 14GR53    F51  C~1vXL      
2014 06  20.38255  14 35 08.675  -02 30 02.45  21.1w 14GR53    F51  C~1vXL      
2014 06  30.32249  14 34 23.979  -02 36 03.37  21.6w 14GR53    F51  C~1vXL      
2014 06  30.33575  14 34 23.935  -02 36 03.68  21.6w 14GR53    F51  C~1vXL      
2014 06  30.34895  14 34 23.901  -02 36 04.05  21.9w 14GR53    F51  C~1vXL      
2014 06  30.36222  14 34 23.845  -02 36 04.68  21.9w 14GR53    F51  C~1vXL      
2015 02  23.60498  14 57 43.899  -06 33 58.85  21.6w 14GR53    F51  C~1vXL      
2015 02  23.61800  14 57 43.876  -06 33 58.87  21.7w 14GR53    F51  C~1vXL      
2015 02  23.63102  14 57 43.853  -06 33 58.80  21.7w 14GR53    F51  C~1vXL      
2015 02  23.64412  14 57 43.836  -06 33 58.76  21.8w 14GR53    F51  C~1vXL      
2015 02  25.56114  14 57 40.903  -06 33 54.21  21.8w 14GR53    F51  C~1vXL      
2015 02  25.57300  14 57 40.884  -06 33 54.25  21.7w 14GR53    F51  C~1vXL      
2015 02  25.58776  14 57 40.855  -06 33 54.13  22.1w 14GR53    F51  C~1vXL      
2015 02  25.59969  14 57 40.821  -06 33 54.09  22.0w 14GR53    F51  C~1vXL      
2015 03  01.63277  14 57 32.571  -06 33 37.89  21.8w 14GR53    F51  C~1vXL      
2015 03  01.63739  14 57 32.572  -06 33 37.78  21.9w 14GR53    F51  C~1vXL      
2015 03  01.64202  14 57 32.553  -06 33 37.94  21.9w 14GR53    F51  C~1vXL      
2015 03  01.64666  14 57 32.547  -06 33 37.78  21.8w 14GR53    F51  C~1vXL      
2015 03  21.52983  14 56 13.960  -06 30 30.93  21.8w 14GR53    F51  C~1vXL      
2015 03  21.54271  14 56 13.890  -06 30 30.70  21.9w 14GR53    F51  C~1vXL      
2015 03  21.55542  14 56 13.833  -06 30 30.48  21.8w 14GR53    F51  C~1vXL      
2015 03  21.56820  14 56 13.755  -06 30 30.40  21.6w 14GR53    F51  C~1vXL      
2015 03  28.53068  14 55 32.844  -06 28 56.73  21.8w 14GR53    F51  C~1vXL      
2015 03  28.54359  14 55 32.754  -06 28 56.51  21.9w 14GR53    F51  C~1vXL      
2015 03  28.55742  14 55 32.670  -06 28 56.29  21.7w 14GR53    F51  C~1vXL      
2015 03  28.57019  14 55 32.592  -06 28 56.12  21.8w 14GR53    F51  C~1vXL      
2017 05  02.33448  15 11 35.00   -14 27 20.6   21.2R 14GR53    G37  C~2Fa8      
2017 05  02.40104  15 11 34.39   -14 27 20.4         14GR53    G37  C~2Fa8      

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 -1395.02       0.00 -3639.37
  2   0.0000      0.05 -1394.92      -0.09 -3639.37
  3   0.0000     -0.19 -1394.98      -0.21 -3639.24
  4   0.5811  19545.53 -6220.88   -5132.14 -2533.50
  5   0.5811  19545.53 -6220.92   -5132.14 -2533.57
  6   0.5811  19545.75 -6220.83   -5132.25 -2533.89
  7   8.7969 135112.76  7340.62  -56841.64 -5718.64
  8   8.7969 135112.05  7340.91  -56841.70 -5718.66
  9   8.7969 135111.79  7341.43  -56841.68 -5718.61
 10   8.7970 135110.38  7341.69  -56841.79 -5718.66
 11   9.1356 121977.18 13946.95  -64686.30 -4017.44
 12   9.1356 121977.26 13946.96  -64686.72 -4017.38
 13   9.1356 121977.34 13946.97  -64687.15 -4017.32
 14   9.1356 121977.34 13946.90  -64687.46 -4017.15
 15   9.1356 121977.59 13947.08  -64687.79 -4017.01
 16   9.8651 155365.14 10872.60  -68418.67 -5921.55
 17   9.8651 155362.93 10873.67  -68419.24 -5921.45
 18   9.8652 155360.86 10874.88  -68420.08 -5921.62
 19   9.8652 155358.93 10876.25  -68420.25 -5921.11
 20   9.9550 149820.45 13613.11  -70327.61 -5522.12
 21   9.9551 149818.24 13614.02  -70328.58 -5521.94
 22   9.9551 149816.20 13615.09  -70329.49 -5521.70
 23   9.9551 149813.98 13615.99  -70330.49 -5521.55
 24   9.9798 148373.15 14289.35  -70995.27 -5347.23
 25   9.9798 148371.35 14290.37  -70996.49 -5347.24
 26   9.9798 148369.38 14291.23  -70997.55 -5347.07
 27   9.9935 147623.12 14637.07  -71385.08 -5242.39
 28   9.9935 147621.34 14637.88  -71386.02 -5242.11
 29   9.9935 147619.86 14639.00  -71386.97 -5241.82
 30   9.9936 147617.92 14639.63  -71388.06 -5241.69
 31  10.0755 144373.81 16177.52  -73876.13 -4555.96
 32  10.0755 144373.15 16178.21  -73877.76 -4556.15
 33  10.0756 144372.50 16178.90  -73878.78 -4555.73
 34  10.0756 144371.84 (*******) -73879.34 (*******)
 35  10.1028 143892.31 16458.82  -74720.36 -4326.84
 36  10.1028 143891.79 16459.05  -74721.13 -4326.17
 37  10.1029 143891.52 16459.52  -74721.88 -4325.50
 38  10.1029 143891.09 16459.83  -74723.15 -4325.34
 39  10.7552 187104.07  8774.68  -79992.47 -5492.90
 40  10.7552 187103.59  8775.31  -79992.72 -5493.13
 41  10.7553 187103.00  8775.84  -79992.84 -5493.25
 42  10.7553 187102.58  8776.55  -79992.95 -5493.34
 43  10.7605 187032.98  8873.29  -80014.82 -5515.37
 44  10.7606 187032.61  8874.07  -80015.06 -5515.57
 45  10.7606 187031.83  8874.73  -80015.17 -5515.63
 46  10.7606 187031.04  8875.10  -80015.44 -5515.86
 47  10.7717 186831.28  9098.83  -80072.31 -5557.04
 48  10.7717 186831.17  9099.28  -80072.15 -5556.84
 49  10.7717 186830.95  9099.62  -80072.55 -5557.20
 50  10.7717 186830.63  9099.86  -80072.39 -5557.00
 51  10.8262 184897.25 10545.84  -80568.26 -5650.68
 52  10.8262 184895.46 10546.91  -80568.62 -5650.56
 53  10.8262 184893.97 10548.25  -80568.86 -5650.34
 54  10.8263 184892.18 10549.31  -80569.50 -5650.51
 55  10.8453 183896.01 11167.78  -80831.50 -5637.60
 56  10.8454 183893.81 11168.79  -80832.06 -5637.56
 57  10.8454 183891.73 11170.17  -80832.56 -5637.41
 58  10.8454 183889.85 11171.47  -80833.07 -5637.33
 59  12.9420 248436.97  9779.02 -116596.35   143.04
 60  12.9422 248419.24  9790.52 -116601.48   144.46

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.

14GR53    quality flag:3

Type:       CENTAURS  CENTAURS  CENTAURS

axisobj       201.510   201.497   201.523
ecceobj         0.888     0.888     0.888
incobj         42.083    42.083    42.083
qmin           21.479    21.496    21.435
qmax          452.582   488.279   608.204
amean         208.818   218.176   237.814
amin          193.107   200.814   189.613
amax          237.738   255.577   315.578
emean           0.891     0.895     0.903
emin            0.880     0.884     0.878
emax            0.904     0.910     0.927
imean          41.364    41.224    41.229
imin           40.007    39.899    39.696
imax           42.750    42.772    42.858
excite_mean     1.109     1.112     1.118
fracstop        1.000     1.000     1.000
cjmean          1.938     1.939     1.933

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       184.8     183.9     184.7
kozaiamp          7.1       6.3       6.6