Orbit Fit and Astrometric record for 14JG80

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: 14JG80    
# Created Sun Oct 22 01:38:25 2017
# Orbit generated from Bernstein formalism
# Fitting   39 observations of   41
# Arc:   3.07y
# First observation: 2012/05/14
#  Last observation: 2015/06/10
Preliminary a, adot, b, bdot, g, gdot:
  -0.000428   0.034860   0.000169  -0.016008   0.037504   0.000000
# Chi-squared of fit:    23.32 DOF:   72 RMS:  0.14
# Min/Max residuals:    -0.36    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.428908E-05  3.511550E-02 -7.054951E-06 -1.624210E-02  3.799055E-02  2.233482E-03
# Covariance matrix:
  3.4235E-13 -2.9336E-13 -4.3461E-14  8.1929E-14 -1.6631E-13 -1.6778E-12
 -2.9336E-13  4.1760E-13  8.4688E-14 -1.6075E-13  3.2080E-13  3.2905E-12
 -4.3461E-14  8.4688E-14  2.6794E-13 -1.4572E-13  7.9779E-14  7.6090E-13
  8.1929E-14 -1.6075E-13 -1.4572E-13  1.2919E-13 -1.3354E-13 -1.4862E-12
 -1.6631E-13  3.2080E-13  7.9779E-14 -1.3354E-13  3.5502E-13  2.7586E-12
 -1.6778E-12  3.2905E-12  7.6090E-13 -1.4862E-12  2.7586E-12  3.0364E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   23.006650 -124.588340    0.029850    0.396049   -0.932806  2456061.861686
# Heliocentric elements and errors
Epoch:              2456060.5000  =  2012/05/13
Mean Anomaly:          164.56053 +/-     0.019
Argument of Peri:      324.71032 +/-     0.019
Long of Asc Node:       94.58986 +/-     0.000
Inclination:            32.79490 +/-     0.000
Eccentricity:         0.29076105 +/-    0.0000
Semi-Major Axis:     21.21957795 +/-    0.0005
Time of Perihelion: 2475443.1568 +/-       1.8
Perihelion:          15.04975110 +/-    0.0007
Aphelion:            27.38940481 +/-    0.0008
Period (y)               97.7492 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -14.35100723 +/-    0.0002
Ecliptic Y          -20.76201262 +/-    0.0003
Ecliptic Z           10.28763944 +/-    0.0002
Ecliptic XDOT         0.00173448 +/-    0.0000
Ecliptic YDOT        -0.00193170 +/-    0.0000
Ecliptic ZDOT        -0.00101440 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   27.25523990 +/-    0.0003
Geocenter to KBO     26.32233338 +/-    0.0004
# Hcoef:  7.71

The following table shows the complete astrometric record for 14JG80. 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 (14JG80) followed by the observatory code and reference code for the source of the astrometry.

2012 05  14.36092  15 53 45.800  +03 16 37.19  22.2w 14JG80    F51  C~1vXS      
2012 05  14.37351  15 53 45.706  +03 16 37.53  21.9w 14JG80    F51  C~1vXS      
2012 05  14.38612  15 53 45.606  +03 16 37.72  22.2w 14JG80    F51  C~1vXS      
2012 05  14.39879  15 53 45.505  +03 16 37.89  22.1w 14JG80    F51  C~1vXS      
2013 02  15.62705  16 05 58.815  +01 02 10.38  22.1w 14JG80    F51  C~1vXS      
2013 02  15.63168  16 05 58.816  +01 02 10.56  22.2w 14JG80    F51  C~1vXS      
2013 02  15.63629  16 05 58.827  +01 02 10.58  22.3w 14JG80    F51  C~1vXS      
2014 05  09.53435  16 08 19.407  +00 31 56.80  22.0w 14JG80    F51  C~1vXS      
2014 05  09.54648  16 08 19.321  +00 31 56.78  22.1w 14JG80    F51  C~1vXS      
2014 05  09.55857  16 08 19.239  +00 31 57.17  22.0w 14JG80    F51  C~1vXS      
2014 05  09.57068  16 08 19.161  +00 31 57.53  22.0w 14JG80    F51  C~1vXS      
2014 05  27.42321  16 06 06.120  +00 36 37.85  22.4w 14JG80    F51  C~1vXS      
2014 05  27.43463  16 06 06.024  +00 36 37.92  22.5w 14JG80    F51  C~1vXS      
2014 05  27.44607  16 06 05.944  +00 36 37.99  22.3w 14JG80    F51  C~1vXS      
2014 05  27.45757  16 06 05.836  +00 36 38.10  22.5w 14JG80    F51  C~1vXS      
2014 06  02.35685  16 05 21.633  +00 37 14.11  22.5w 14JG80    F51  C~1vXS      
2014 06  02.36808  16 05 21.522  +00 37 14.20  22.3w 14JG80    F51  C~1vXS      
2014 06  02.37932  16 05 21.465  +00 37 14.04  22.1w 14JG80    F51  C~1vXS      
2014 06  02.39059  16 05 21.379  +00 37 14.35  22.2w 14JG80    F51  C~1vXS      
2014 06  28.37304  16 02 23.047  +00 33 43.50  22.3w 14JG80    F51  C~1vXS      
2014 06  28.38459  16 02 22.971  +00 33 43.22  22.2w 14JG80    F51  C~1vXS      
2014 06  28.39613  16 02 22.904  +00 33 43.03  22.0w 14JG80    F51  C~1vXS      
2014 06  28.40768  16 02 22.841  +00 33 42.78  22.1w 14JG80    F51  C~1vXS      
2014 06  30.38013  16 02 11.159  +00 33 02.06  22.0w 14JG80    F51  C~1vXS      
2014 06  30.39152  16 02 11.100  +00 33 02.00  22.2w 14JG80    F51  C~1vXS      
2014 06  30.40288  16 02 11.006  +00 33 01.72  22.1w 14JG80    F51  C~1vXS      
2014 08  20.25138  15 59 43.125  -00 01 28.38  22.2w 14JG80    F51  C~1vXS      
2014 08  20.26348  15 59 43.121  -00 01 29.04  22.5w 14JG80    F51  C~1vXS      
2014 08  20.27559  15 59 43.128  -00 01 29.79  22.4w 14JG80    F51  C~1vXS      
2014 08  20.28768  15 59 43.137  -00 01 30.40  22.8w 14JG80    F51  C~1vXS      
2014 08  21.24902  15 59 43.652  -00 02 24.41  22.1w 14JG80    F51  C~1vXS      
2014 08  21.26114  15 59 43.669  -00 02 25.07  22.3w 14JG80    F51  C~1vXS      
2014 08  21.27326  15 59 43.668  -00 02 25.83  22.2w 14JG80    F51  C~1vXS      
2014 08  21.28536  15 59 43.693  -00 02 26.33  22.3w 14JG80    F51  C~1vXS      
2015 03  29.58846  16 19 03.425  -01 10 40.42  22.4w 14JG80    F51  C~1vXS      
2015 03  29.59948  16 19 03.399  -01 10 40.08  22.1w 14JG80    F51  C~1vXS      
2015 03  29.61047  16 19 03.339  -01 10 39.71  22.2w 14JG80    F51  C~1vXS      
2015 03  29.62151  16 19 03.319  -01 10 39.11  22.2w 14JG80    F51  C~1vXS      
2015 06  10.41601  16 11 19.897  -00 43 46.02  22.0w 14JG80    F51  C~1vXS      
2015 06  10.43729  16 11 19.762  -00 43 45.64  22.2w 14JG80    F51  C~1vXS      
2015 06  10.44790  16 11 19.659  -00 43 46.02  22.0w 14JG80    F51  C~1vXS      

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     0.06
  2   0.0000     -1.45     0.07       0.01     0.17
  3   0.0001     -2.95     0.02      -0.14     0.11
  4   0.0001     -4.46    -0.03      -0.32     0.02
  5   0.7591  12551.15     0.05   -5365.86    -0.14
  6   0.7591  12551.12    -0.08   -5365.68    -0.14
  7   0.7591  12551.28    -0.03   -5365.63    -0.26
  8   1.9854  15031.40    -0.06   -6656.80     0.04
  9   1.9854  15030.14     0.05   -6657.11    -0.23
 10   1.9855  15028.85     0.12   -6657.01    -0.09
 11   1.9855  15027.62     0.26   -6656.92     0.03
 12   2.0344  13010.61    -0.07   -6837.55    -0.12
 13   2.0344  13009.19    -0.19   -6837.81    -0.18
 14   2.0345  13008.00    -0.07   -6838.01    -0.18
 15   2.0345  13006.39    -0.36   -6838.27    -0.24
 16   2.0506  12349.91     0.10   -6953.99     0.30
 17   2.0507  12348.26    -0.29   -6954.28     0.26
 18   2.0507  12347.46     0.17   -6954.63     0.16
 19   2.0507  12346.13 (   0.10)  -6954.62 (   0.42)
 20   2.1219   9781.27    -0.03   -7768.58     0.04
 21   2.1219   9780.22    -0.09   -7769.11    -0.03
 22   2.1219   9779.28    -0.05   -7769.53     0.02
 23   2.1220   9778.42     0.07   -7769.98     0.03
 24   2.1274   9616.64     0.08   -7849.54    -0.04
 25   2.1274   9615.79     0.17   -7849.80     0.17
 26   2.1274   9614.48    -0.21   -7850.39     0.04
 27   2.2666   7922.08    -0.02  -10375.85     0.04
 28   2.2667   7922.17    -0.15  -10376.51     0.03
 29   2.2667   7922.45    -0.09  -10377.22    -0.04
 30   2.2667   7922.72    -0.04  -10377.78     0.05
 31   2.2694   7942.60    -0.01  -10428.82     0.01
 32   2.2694   7943.00     0.15  -10429.40     0.07
 33   2.2694   7943.16     0.07  -10430.15    -0.02
 34   2.2695   7943.64     0.30  -10430.55     0.22
 35   2.8726  25968.44    -0.04  -10494.57    -0.09
 36   2.8727  25967.97     0.16  -10494.32    -0.12
 37   2.8727  25966.99    -0.16  -10494.16    -0.23
 38   2.8727  25966.55     0.07  -10493.64     0.02
 39   3.0720  18737.84     0.08  -10488.23     0.10
 40   3.0721  18735.77 (   0.31) -10488.32 (   0.60)
 41   3.0721  18734.34     0.03  -10489.04     0.17

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.

14JG80    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        21.189    21.191    21.188
ecceobj         0.292     0.292     0.292
incobj         32.778    32.778    32.777
qmin           14.547    13.335    14.757
qmax           28.322    30.220    28.039
amean          21.427    21.618    21.371
amin           21.147    21.147    21.147
amax           21.951    22.059    21.660
emean           0.285     0.314     0.287
emin            0.237     0.264     0.252
emax            0.319     0.383     0.307
imean          30.979    30.177    30.991
imin           30.053    27.308    30.548
imax           31.808    31.770    31.804
excite_mean     0.588     0.593     0.589
fracstop        0.063     0.108     0.026
cjmean          2.789     2.781     2.786

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       164.4     160.8     125.3
kozaiamp        179.5     179.6     179.4