Orbit Fit and Astrometric record for 506028

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: 506028    
# Created Fri Dec 15 02:36:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   88 observations of   89
# Arc:   3.48y
# First observation: 2014/05/30
#  Last observation: 2017/11/20
# Chi-squared of fit:   466.04 DOF:  170 RMS:  0.41
# Min/Max residuals:    -1.00    1.13
# Exact a, adot, b, bdot, g, gdot:
  3.688337E-05  3.597771E-01  2.172409E-05  1.997597E-01  1.574225E-01 -2.524016E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
   14.103755  -53.708229    0.855712    0.132957   -0.528999  2456807.856308
# Heliocentric elements and errors
Epoch:              2456808.5000  =  2014/05/31
Mean Anomaly:          335.59761 +/-     0.000
Argument of Peri:       63.16155 +/-     0.000
Long of Asc Node:      278.57807 +/-     0.000
Inclination:            33.26555 +/-     0.000
Eccentricity:         0.23221949 +/-    0.0000
Semi-Major Axis:      8.64829155 +/-    0.0000
Time of Perihelion: 2457438.1856 +/-       0.0
Perihelion:           6.63998972 +/-    0.0000
Aphelion:            10.65659339 +/-    0.0000
Period (y)               25.4334 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            3.27806268 +/-    0.0000
Ecliptic Y           -5.90987330 +/-    0.0000
Ecliptic Z            1.54813022 +/-    0.0000
Ecliptic XDOT         0.00451180 +/-    0.0000
Ecliptic YDOT         0.00441662 +/-    0.0000
Ecliptic ZDOT         0.00335887 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    6.93321307 +/-    0.0000
Geocenter to KBO      6.35234798 +/-    0.0000
# Hcoef: 12.16

The following table shows the complete astrometric record for 506028. 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 (506028) followed by the observatory code and reference code for the source of the astrometry.

2014 05  30.35553  20 20 45.09   -05 00 46.1   20.4V 506028    G96  C~1T2U      
2014 05  30.36023  20 20 45.06   -05 00 45.0   20.1V 506028    G96  C~1T2U      
2014 05  30.36489  20 20 44.99   -05 00 44.0   20.3V 506028    G96  C~1T2U      
2014 05  30.36955  20 20 44.96   -05 00 42.9   20.2V 506028    G96  C~1T2U      
2014 05  31.53609  20 20 33.729  -04 56 51.34  20.6w 506028    F51  C~1T2U      
2014 05  31.54913  20 20 33.588  -04 56 48.80  20.5w 506028    F51  C~1T2U      
2014 05  31.56219  20 20 33.447  -04 56 46.21  20.7w 506028    F51  C~1T2U      
2014 05  31.57526  20 20 33.310  -04 56 43.70  20.8w 506028    F51  C~1T2U      
2014 06  30.44112  20 12 06.186  -03 37 24.47  20.4w 506028    F51  C~1T2U      
2014 06  30.45369  20 12 05.891  -03 37 23.04  20.5w 506028    F51  C~1T2U      
2015 04  23.46548  21 24 33.17   +07 18 33.8   21.1V 506028    691  C~1RND      
2015 04  23.47725  21 24 33.35   +07 18 39.4   20.8V 506028    691  C~1RND      
2015 04  23.48902  21 24 33.62   +07 18 42.6   20.7V 506028    691  C~1RND      
2015 04  28.46183  21 26 08.32   +07 49 16.7   20.8V 506028    691  C~1RND      
2015 04  28.47066  21 26 08.44   +07 49 20.5   20.4V 506028    691  C~1RND      
2015 04  28.47945  21 26 08.61   +07 49 23.2   20.8V 506028    691  C~1RND      
2015 04  29.43424  21 26 25.54   +07 55 14.8   20.7R 506028    291  C~1RND      
2015 04  29.43819  21 26 25.60   +07 55 15.5   21.0R 506028    926  C~1RND      
2015 04  29.44727  21 26 25.79   +07 55 19.3   20.6R 506028    291  C~1RND      
2015 04  29.44935  21 26 25.82   +07 55 20.4   20.8R 506028    926  C~1RND      
2015 04  29.46030  21 26 26.00   +07 55 24.2   20.3R 506028    291  C~1RND      
2015 04  29.46045  21 26 26.00   +07 55 24.3   20.5R 506028    926  C~1RND      
2015 04  30.44337  21 26 42.92   +08 01 25.7         506028    291  C~1RND      
2015 04  30.44598  21 26 42.96   +08 01 26.9   20.9R 506028    926  C~1RND      
2015 04  30.45508  21 26 43.11   +08 01 30.0         506028    291  C~1RND      
2015 04  30.45862  21 26 43.14   +08 01 32.2   20.6R 506028    926  C~1RND      
2015 04  30.46662  21 26 43.32   +08 01 34.6         506028    291  C~1RND      
2015 04  30.47138  21 26 43.45   +08 01 35.8   20.4R 506028    926  C~1RND      
2015 06  04.54525  21 31 27.897  +11 25 43.74  20.1i 506028    F51  C~1T2U      
2015 06  04.55668  21 31 27.872  +11 25 47.34  20.1i 506028    F51  C~1T2U      
2015 06  04.56810  21 31 27.844  +11 25 51.08  20.3i 506028    F51  C~1T2U      
2015 06  04.57972  21 31 27.816  +11 25 54.68  20.1i 506028    F51  C~1T2U      
2015 06  05.53963  21 31 26.316  +11 30 58.45  20.1i 506028    F51  C~1T2U      
2015 06  05.56244  21 31 26.251  +11 31 05.78  20.2i 506028    F51  C~1T2U      
2015 06  05.57395  21 31 26.231  +11 31 09.36  20.3i 506028    F51  C~1T2U      
2015 06  11.38281  21 31 06.03   +12 00 52.2         506028    691  C~1T2U      
2015 06  11.39984  21 31 05.85   +12 00 57.5   20.7V 506028    691  C~1T2U      
2015 06  11.41687  21 31 05.78   +12 01 02.9   20.8V 506028    691  C~1T2U      
2015 07  08.58240  21 25 32.454  +13 53 05.16  20.0i 506028    F51  C~1UFz      
2015 07  08.59050  21 25 32.300  +13 53 06.98  20.0i 506028    F51  C~1UFz      
2015 07  08.59858  21 25 32.149  +13 53 08.53  20.0i 506028    F51  C~1UFz      
2015 07  08.60663  21 25 31.985  +13 53 10.06  19.9i 506028    F51  C~1UFz      
2015 07  10.27045  21 25 00.19   +13 58 16.0   19.8R 506028    H36  C~1UFz      
2015 07  10.30278  21 24 59.61   +13 58 20.9   19.9R 506028    H36  C~1UFz      
2015 09  08.55668  21 00 48.36   +14 19 07.2   20.9R 506028    D29  C~1Wks      
2015 09  08.56903  21 00 48.16   +14 19 05.1   20.2R 506028    D29  C~1Wks      
2016 05  27.40693  22 48 01.48   +24 57 47.0   20.7V 506028    691  C~1tb0      
2016 05  27.42219  22 48 01.69   +24 57 53.1   20.7V 506028    691  C~1tb0      
2016 05  27.43740  22 48 01.95   +24 57 59.6   20.3V 506028    691  C~1tb0      
2016 06  07.35103  22 50 29.24   +26 11 39.4         506028    691  C~1u6P      
2016 06  07.35752  22 50 29.30   +26 11 42.0         506028    691  C~1u6P      
2016 06  07.36399  22 50 29.34   +26 11 45.7   21.0V 506028    691  C~1u6P      
2016 06  19.55991  22 51 57.304  +27 29 51.62  20.2i 506028    F51  C~1unO      
2016 06  19.57030  22 51 57.331  +27 29 55.51  20.2i 506028    F51  C~1unO      
2016 06  19.58072  22 51 57.383  +27 29 59.48  20.2i 506028    F51  C~1unO      
2016 06  19.59121  22 51 57.392  +27 30 03.24  20.2i 506028    F51  C~1unO      
2016 07  14.26815  22 50 32.27   +29 44 39.6   21.0V 506028    691  C~1vYb      
2016 07  14.27745  22 50 32.13   +29 44 42.7   20.8V 506028    691  C~1vYb      
2016 07  14.28675  22 50 32.05   +29 44 44.9   20.5V 506028    691  C~1vYb      
2016 08  25.58403  22 36 14.58   +31 29 26.3   20.7R 506028    D29  C~1wzC      
2016 08  25.61232  22 36 13.68   +31 29 26.7   21.0R 506028    D29  C~1wzC      
2016 09  02.59505  22 32 39.19   +31 26 23.2   20.4R 506028    D29  C~1xhY      
2016 09  02.61096  22 32 38.76   +31 26 22.1   20.4R 506028    D29  C~1xhY      
2016 09  02.62687  22 32 38.33   +31 26 21.7   20.2R 506028    D29  C~1xhY      
2016 09  21.51086  22 24 36.21   +30 51 22.9   20.0R 506028    D29  C~1yHB      
2016 09  21.52854  22 24 35.81   +30 51 20.9   20.6R 506028    D29  C~1yHB      
2017 06  13.41629  00 22 54.20   +36 57 51.5   20.0R 506028    695  C~2Gig      
2017 06  13.42682  00 22 54.45   +36 57 55.9   20.1R 506028    695  C~2Gig      
2017 06  13.43735  00 22 54.72   +36 58 00.1   19.8R 506028    695  C~2Gig      
2017 10  02.34493  00 11 49.70   +43 00 20.8   20.7V 506028    G96  C~2MbP      
2017 10  02.35909  00 11 49.29   +43 00 18.6   20.1V 506028    G96  C~2MbP      
2017 10  02.36342  00 11 49.17   +43 00 17.5   20.0V 506028    G96  C~2MbP      
2017 10  02.37044  00 11 48.98   +43 00 17.3   20.0V 506028    G96  C~2MbP      
2017 10  03.43110  00 11 19.485  +42 57 57.41  19.8i 506028    F51  C~2MbP      
2017 10  03.44259  00 11 19.151  +42 57 55.81  20.1i 506028    F51  C~2MbP      
2017 10  03.45409  00 11 18.824  +42 57 54.30  20.2i 506028    F51  C~2MbP      
2017 10  03.46556  00 11 18.486  +42 57 52.60  20.0i 506028    F51  C~2MbP      
2017 10  10.24712  00 08 14.15   +42 40 00.9   20.3G 506028    G96  C~2MbP      
2017 10  10.25318  00 08 13.97   +42 40 00.0   20.2G 506028    G96  C~2MbP      
2017 10  10.25911  00 08 13.83   +42 39 59.0   20.2G 506028    G96  C~2MbP      
2017 10  10.26473  00 08 13.69   +42 39 57.6   20.4G 506028    G96  C~2MbP      
2017 10  28.26056  00 01 14.536  +41 31 39.05  20.2i 506028    F51  C~2OlA      
2017 10  28.26966  00 01 14.358  +41 31 36.82  20.2i 506028    F51  C~2OlA      
2017 10  28.27876  00 01 14.177  +41 31 34.59  20.2i 506028    F51  C~2OlA      
2017 10  28.28787  00 01 13.995  +41 31 31.96  20.2i 506028    F51  C~2OlA      
2017 11  20.22955  23 56 33.747  +39 38 40.19  20.5w 506028    F51  C~2Rdz      
2017 11  20.24163  23 56 33.689  +39 38 36.53  20.4w 506028    F51  C~2Rdz      
2017 11  20.25376  23 56 33.629  +39 38 32.88  20.4w 506028    F51  C~2Rdz      
2017 11  20.26592  23 56 33.555  +39 38 29.10  20.4w 506028    F51  C~2Rdz      

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 (  -0.22)      0.00 ( -12.81)
  2   0.0000      0.00     0.28       0.00    -0.36
  3   0.0000      0.00    -0.10       0.00    -0.29
  4   0.0000      0.00     0.13       0.00    -0.12
  5   0.0032      0.00     0.19       0.00    -0.26
  6   0.0033      0.00     0.12       0.00    -0.29
  7   0.0033      0.00     0.06       0.00    -0.27
  8   0.0033      0.00     0.06       0.00    -0.33
  9   0.0851      0.00     0.28       0.00    -0.22
 10   0.0851      0.00     0.27       0.00    -0.26
 11   0.8983      0.00     0.17       0.00    -0.62
 12   0.8983      0.00    -0.64       0.00     0.63
 13   0.8984      0.00    -0.09       0.00    -0.53
 14   0.9120      0.00    -0.20       0.00    -0.09
 15   0.9120      0.00    -0.73       0.00     0.45
 16   0.9120      0.00    -0.50       0.00    -0.09
 17   0.9147      0.00    -0.15       0.00     0.10
 18   0.9147      0.00    -0.27       0.00    -0.66
 19   0.9147      0.00     0.24       0.00    -0.20
 20   0.9147      0.00     0.15       0.00     0.12
 21   0.9147      0.00     0.03       0.00    -0.10
 22   0.9147      0.00    -0.01       0.00    -0.07
 23   0.9174      0.00    -0.39       0.00    -0.11
 24   0.9174      0.00    -0.44       0.00     0.11
 25   0.9175      0.00    -0.48       0.00    -0.13
 26   0.9175      0.00    -0.91       0.00     0.76
 27   0.9175      0.00    -0.22       0.00     0.22
 28   0.9175      0.00     0.55       0.00    -0.34
 29   1.0135      0.00     0.19       0.00    -0.28
 30   1.0136      0.00     0.13       0.00    -0.32
 31   1.0136      0.00     0.02       0.00    -0.22
 32   1.0136      0.00    -0.08       0.00    -0.32
 33   1.0162      0.00     0.11       0.00    -0.33
 34   1.0163      0.00    -0.06       0.00    -0.21
 35   1.0163      0.00     0.05       0.00    -0.26
 36   1.0322      0.00     0.99       0.00    -0.91
 37   1.0323      0.00    -0.30       0.00    -0.71
 38   1.0323      0.00     0.08       0.00    -0.40
 39   1.1067      0.00     0.23       0.00    -0.37
 40   1.1067      0.00     0.27       0.00    -0.07
 41   1.1068      0.00     0.35       0.00    -0.04
 42   1.1068      0.00     0.23       0.00    -0.01
 43   1.1113      0.00     0.16       0.00     0.41
 44   1.1114      0.00     1.13       0.00    -0.52
 45   1.2764      0.00     0.02       0.00    -0.09
 46   1.2764      0.00     0.83       0.00    -0.74
 47   1.9933      0.00     0.03       0.00    -0.13
 48   1.9933      0.00    -0.49       0.00    -0.35
 49   1.9934      0.00    -0.24       0.00    -0.15
 50   2.0233      0.00    -0.03       0.00    -0.87
 51   2.0233      0.00    -0.14       0.00    -0.86
 52   2.0233      0.00    -0.55       0.00     0.25
 53   2.0567      0.00    -0.11       0.00    -0.31
 54   2.0567      0.00    -0.21       0.00    -0.28
 55   2.0567      0.00     0.06       0.00    -0.18
 56   2.0568      0.00    -0.30       0.00    -0.31
 57   2.1243      0.00     0.23       0.00    -0.16
 58   2.1244      0.00    -0.36       0.00     0.35
 59   2.1244      0.00    -0.03       0.00    -0.04
 60   2.2402      0.00     1.06       0.00    -0.20
 61   2.2403      0.00    -0.90       0.00    -0.01
 62   2.2621      0.00     0.34       0.00     0.36
 63   2.2622      0.00     0.46       0.00     0.04
 64   2.2622      0.00     0.58       0.00     0.44
 65   2.3139      0.00    -0.36       0.00    -1.00
 66   2.3140      0.00    -0.07       0.00    -0.11
 67   3.0392      0.00    -0.67       0.00    -0.43
 68   3.0392      0.00    -0.83       0.00    -0.05
 69   3.0392      0.00    -0.68       0.00     0.13
 70   3.3429      0.00     0.86       0.00     0.37
 71   3.3429      0.00     0.76       0.00     0.02
 72   3.3429      0.00     0.82       0.00    -0.51
 73   3.3430      0.00     0.96       0.00     0.21
 74   3.3459      0.00     0.50       0.00     0.15
 75   3.3459      0.00     0.41       0.00     0.12
 76   3.3459      0.00     0.42       0.00     0.19
 77   3.3460      0.00     0.25       0.00     0.07
 78   3.3645      0.00     0.39       0.00    -0.05
 79   3.3645      0.00     0.17       0.00     0.13
 80   3.3646      0.00     0.48       0.00     0.20
 81   3.3646      0.00     0.68       0.00    -0.19
 82   3.4138      0.00     0.24       0.00     0.07
 83   3.4139      0.00     0.28       0.00     0.26
 84   3.4139      0.00     0.28       0.00     0.46
 85   3.4139      0.00     0.28       0.00     0.26
 86   3.4767      0.00     0.13       0.00     0.34
 87   3.4768      0.00     0.22       0.00     0.38
 88   3.4768      0.00     0.28       0.00     0.45
 89   3.4768      0.00     0.14       0.00     0.41

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.

506028    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj         8.678     8.678     8.678
ecceobj         0.233     0.233     0.233
incobj         33.218    33.218    33.218
qmin            6.506     5.729     6.390
qmax           10.955    11.446    10.769
amean           8.643     8.525     8.502
amin            8.598     8.136     8.160
amax            8.851     8.703     8.690
emean           0.234     0.288     0.199
emin            0.220     0.233     0.101
emax            0.248     0.324     0.245
imean          34.886    33.418    35.610
imin           34.363    32.544    34.678
imax           35.381    34.838    37.910
excite_mean     0.618     0.623     0.617
fracstop        0.001     0.002     0.003
cjmean          4.344     4.386     4.391

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        93.6     112.2      94.3
kozaiamp         29.2      55.7      66.7