Orbit Fit and Astrometric record for 10RD188

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: 10RD188   
# Created Mon Apr 22 01:08:59 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   62 observations of   62
# Arc:   7.37y
# First observation: 2010/07/24
#  Last observation: 2017/12/08
# Chi-squared of fit:    39.82 DOF:  118 RMS:  0.14
# Min/Max residuals:    -0.50    0.46
# Exact a, adot, b, bdot, g, gdot:
  1.703203E-05  2.565036E-02  5.249461E-06  5.161748E-03  2.575526E-02 -8.196882E-04
# Covariance matrix:
  1.6090E-13 -1.6173E-14  9.6231E-15 -5.3874E-16  6.0616E-14  1.1869E-14
 -1.6173E-14  4.5276E-14 -7.3735E-16  8.2220E-15  4.8704E-14  2.4448E-13
  9.6231E-15 -7.3735E-16  1.0490E-13 -1.7851E-14  9.0135E-15 -3.7478E-15
 -5.3874E-16  8.2220E-15 -1.7851E-14  5.5403E-15  8.8416E-15  4.8524E-14
  6.0616E-14  4.8704E-14  9.0135E-15  8.8416E-15  1.1773E-13  2.9146E-13
  1.1869E-14  2.4448E-13 -3.7478E-15  4.8524E-14  2.9146E-13  1.4446E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -26.291643    0.106361    0.865675   -0.232343   -0.470183  2455402.118656
# Heliocentric elements and errors
Epoch:              2455402.5000  =  2010/07/25
Mean Anomaly:          305.89207 +/-     0.023
Argument of Peri:      351.04590 +/-     0.027
Long of Asc Node:       65.20726 +/-     0.000
Inclination:            27.94515 +/-     0.000
Eccentricity:         0.06112590 +/-    0.0000
Semi-Major Axis:     40.66317124 +/-    0.0019
Time of Perihelion: 2469637.5404 +/-       8.3
Perihelion:          38.17759840 +/-    0.0027
Aphelion:            43.14874408 +/-    0.0029
Period (y)              259.3045 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.34065284 +/-    0.0005
Ecliptic Y           -0.80113795 +/-    0.0000
Ecliptic Z          -17.19784268 +/-    0.0002
Ecliptic XDOT         0.00016091 +/-    0.0000
Ecliptic YDOT         0.00273320 +/-    0.0000
Ecliptic ZDOT         0.00053051 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.31121815 +/-    0.0004
Geocenter to KBO     38.82705657 +/-    0.0005
# Hcoef:  6.10

The following table shows the complete astrometric record for 10RD188. 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 (10RD188) followed by the observatory code and reference code for the source of the astrometry.

2010 07  24.61789  00 44 50.907  -23 56 12.29  22.3G 10RD188   F51  C~2r7K      
2010 09  08.47745  00 42 27.298  -24 29 04.84  22.3g 10RD188   F51  C~1w3j      
2010 09  08.48850  00 42 27.224  -24 29 05.26  22.4g 10RD188   F51  C~1w3j      
2010 09  08.50184  00 42 27.159  -24 29 05.60  21.8r 10RD188   F51  C~1w3j      
2010 09  08.51364  00 42 27.111  -24 29 06.24  21.8r 10RD188   F51  C~1w3j      
2010 09  18.45746  00 41 38.076  -24 35 01.95  21.4i 10RD188   F51  C~1w3j      
2010 09  18.46888  00 41 38.016  -24 35 02.21  21.7i 10RD188   F51  C~1w3j      
2010 10  09.38041  00 39 47.407  -24 44 03.82  21.9g 10RD188   F51  C~1w3j      
2010 10  09.39230  00 39 47.325  -24 44 03.86  21.6g 10RD188   F51  C~1w3j      
2010 10  12.39089  00 39 31.416  -24 44 53.95  21.8r 10RD188   F51  C~1w3j      
2010 10  12.40194  00 39 31.357  -24 44 53.57  22.1r 10RD188   F51  C~1w3j      
2010 10  22.34280  00 38 39.929  -24 46 43.05  21.1i 10RD188   F51  C~1w3j      
2012 09  06.53985  00 53 06.473  -22 37 18.53  21.0i 10RD188   F51  C~1w3j      
2012 09  06.55183  00 53 06.445  -22 37 19.16  21.3i 10RD188   F51  C~1w3j      
2012 12  31.21050  00 46 03.233  -22 30 59.01  22.6G 10RD188   F51  C~2r7K      
2013 10  21.43754  00 54 30.839  -22 01 08.31  21.5i 10RD188   F51  C~1w3j      
2013 10  21.43950  00 54 30.816  -22 01 08.45  21.2i 10RD188   F51  C~1w3j      
2013 10  21.45056  00 54 30.759  -22 01 08.43  21.2i 10RD188   F51  C~1w3j      
2013 10  21.45254  00 54 30.744  -22 01 08.58  21.2i 10RD188   F51  C~1w3j      
2013 10  28.37421  00 53 55.964  -22 02 03.64  22.0g 10RD188   F51  C~1w3j      
2013 11  28.28206  00 51 51.377  -21 57 09.88  21.4r 10RD188   F51  C~1w3j      
2013 12  03.23127  00 51 38.069  -21 55 01.90  21.8g 10RD188   F51  C~1w3j      
2014 08  31.49805  01 03 50.830  -20 39 17.33  22.1G 10RD188   F51  C~2r7K      
2014 08  31.50893  01 03 50.793  -20 39 17.68  21.6G 10RD188   F51  C~2r7K      
2014 08  31.51983  01 03 50.747  -20 39 18.13  21.9G 10RD188   F51  C~2r7K      
2014 08  31.53071  01 03 50.705  -20 39 18.58  21.8G 10RD188   F51  C~2r7K      
2014 11  09.34721  00 58 09.336  -21 05 43.47  21.9G 10RD188   F51  C~2r7K      
2014 11  18.36088  00 57 32.218  -21 04 24.27  22.2G 10RD188   F51  C~2r7K      
2015 11  02.36149  01 03 47.439  -20 08 44.59  22.1G 10RD188   F51  C~2r7K      
2015 11  02.37267  01 03 47.380  -20 08 44.50  21.9G 10RD188   F51  C~2r7K      
2015 11  02.38384  01 03 47.320  -20 08 44.55  21.9G 10RD188   F51  C~2r7K      
2015 11  02.39504  01 03 47.266  -20 08 44.56  22.8G 10RD188   F51  C~2r7K      
2015 12  04.21664  01 01 44.416  -20 02 50.60  21.9G 10RD188   F51  C~2r7K      
2015 12  04.22769  01 01 44.385  -20 02 50.28  21.7G 10RD188   F51  C~2r7K      
2015 12  04.23874  01 01 44.363  -20 02 49.90  21.8G 10RD188   F51  C~2r7K      
2015 12  04.24978  01 01 44.332  -20 02 49.54  21.8G 10RD188   F51  C~2r7K      
2015 12  05.30288  01 01 41.587  -20 02 22.23  21.8G 10RD188   F51  C~2r7K      
2015 12  05.31483  01 01 41.541  -20 02 22.05  21.8G 10RD188   F51  C~2r7K      
2015 12  05.32678  01 01 41.532  -20 02 21.84  21.7G 10RD188   F51  C~2r7K      
2016 08  10.56282  01 14 52.367  -18 28 59.31  21.4G 10RD188   F51  C~2r7K      
2016 08  10.57486  01 14 52.335  -18 28 59.91  21.3G 10RD188   F51  C~2r7K      
2016 08  10.58692  01 14 52.300  -18 29 00.47  21.2G 10RD188   F51  C~2r7K      
2016 08  10.59894  01 14 52.288  -18 29 00.96  21.8G 10RD188   F51  C~2r7K      
2016 09  06.51589  01 13 28.071  -18 47 25.28  21.5G 10RD188   F51  C~2r7K      
2016 09  06.52757  01 13 28.025  -18 47 25.70  21.4G 10RD188   F51  C~2r7K      
2016 09  06.53925  01 13 27.985  -18 47 26.21  21.5G 10RD188   F51  C~2r7K      
2016 09  06.55092  01 13 27.932  -18 47 26.73  21.4G 10RD188   F51  C~2r7K      
2017 08  10.47861  01 19 47.585  -17 29 55.56  22.1G 10RD188   F51  C~2r7K      
2017 08  10.49417  01 19 47.558  -17 29 55.94  21.8G 10RD188   F51  C~2r7K      
2017 08  10.50923  01 19 47.519  -17 29 56.57  22.1G 10RD188   F51  C~2r7K      
2017 08  10.59585  01 19 47.362  -17 29 59.91  22.0G 10RD188   F51  C~2r7K      
2017 08  14.47847  01 19 39.434  -17 32 35.36  22.2G 10RD188   F51  C~2r7K      
2017 08  14.49397  01 19 39.384  -17 32 35.98  22.2G 10RD188   F51  C~2r7K      
2017 08  14.50629  01 19 39.370  -17 32 36.44  22.3G 10RD188   F51  C~2r7K      
2017 08  14.55090  01 19 39.282  -17 32 38.29  21.8G 10RD188   F51  C~2r7K      
2017 09  15.50346  01 17 48.202  -17 53 52.07  21.8G 10RD188   F51  C~2r7K      
2017 09  15.51440  01 17 48.150  -17 53 52.46  21.7G 10RD188   F51  C~2r7K      
2017 09  15.52531  01 17 48.098  -17 53 52.87  21.9G 10RD188   F51  C~2r7K      
2017 12  08.22832  01 11 28.262  -18 06 06.64  21.8G 10RD188   F51  C~2r7K      
2017 12  08.23952  01 11 28.238  -18 06 06.50  21.5G 10RD188   F51  C~2r7K      
2017 12  08.25072  01 11 28.205  -18 06 06.06  21.7G 10RD188   F51  C~2r7K      
2017 12  08.26198  01 11 28.176  -18 06 05.89  21.8G 10RD188   F51  C~2r7K      

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    -0.06       0.00    -0.50
  2   0.1256      0.00     0.29       0.00    -0.02
  3   0.1256      0.00    -0.02       0.00    -0.01
  4   0.1256      0.00    -0.03       0.00     0.16
  5   0.1257      0.00     0.10       0.00    -0.03
  6   0.1529      0.00     0.16       0.00    -0.11
  7   0.1529      0.00     0.15       0.00     0.01
  8   0.2102      0.00     0.04       0.00    -0.12
  9   0.2102      0.00    -0.22       0.00     0.06
 10   0.2184      0.00    -0.02       0.00    -0.12
 11   0.2184      0.00    -0.01       0.00     0.43
 12   0.2457      0.00    -0.25       0.00    -0.01
 13   2.1216      0.00    -0.11       0.00     0.06
 14   2.1217      0.00     0.29       0.00    -0.10
 15   2.4383      0.00     0.00       0.00    -0.11
 16   3.2439      0.00     0.08       0.00     0.14
 17   3.2439      0.00    -0.11       0.00     0.02
 18   3.2439      0.00    -0.10       0.00     0.16
 19   3.2439      0.00    -0.17       0.00     0.04
 20   3.2629      0.00     0.05       0.00    -0.13
 21   3.3475      0.00    -0.17       0.00     0.39
 22   3.3610      0.00    -0.30       0.00     0.46
 23   4.1037      0.00    -0.09       0.00    -0.10
 24   4.1037      0.00     0.01       0.00    -0.00
 25   4.1038      0.00    -0.03       0.00     0.00
 26   4.1038      0.00    -0.01       0.00     0.00
 27   4.2949      0.00    -0.07       0.00    -0.42
 28   4.3196      0.00    -0.09       0.00    -0.10
 29   5.2751      0.00     0.20       0.00    -0.15
 30   5.2752      0.00     0.14       0.00    -0.02
 31   5.2752      0.00     0.06       0.00    -0.03
 32   5.2752      0.00     0.08       0.00    -0.01
 33   5.3624      0.00    -0.07       0.00    -0.09
 34   5.3624      0.00    -0.08       0.00    -0.05
 35   5.3624      0.00     0.05       0.00     0.05
 36   5.3624      0.00     0.04       0.00     0.13
 37   5.3653      0.00     0.15       0.00     0.18
 38   5.3654      0.00    -0.06       0.00     0.05
 39   5.3654      0.00     0.28       0.00    -0.06
 40   6.0478      0.00     0.04       0.00     0.31
 41   6.0478      0.00    -0.06       0.00     0.20
 42   6.0478      0.00    -0.20       0.00     0.13
 43   6.0479      0.00     0.00       0.00     0.13
 44   6.1216      0.00    -0.10       0.00    -0.06
 45   6.1216      0.00    -0.05       0.00    -0.02
 46   6.1216      0.00     0.09       0.00    -0.07
 47   6.1217      0.00     0.03       0.00    -0.13
 48   7.0468      0.00     0.04       0.00    -0.25
 49   7.0469      0.00     0.08       0.00    -0.01
 50   7.0469      0.00    -0.07       0.00    -0.04
 51   7.0472      0.00     0.11       0.00     0.07
 52   7.0578      0.00     0.02       0.00    -0.06
 53   7.0578      0.00    -0.20       0.00    -0.05
 54   7.0579      0.00     0.02       0.00    -0.01
 55   7.0580      0.00     0.24       0.00    -0.06
 56   7.1455      0.00     0.04       0.00    -0.01
 57   7.1455      0.00     0.01       0.00     0.00
 58   7.1455      0.00    -0.01       0.00    -0.01
 59   7.3747      0.00    -0.02       0.00     0.09
 60   7.3747      0.00     0.06       0.00    -0.07
 61   7.3748      0.00    -0.01       0.00     0.08
 62   7.3748      0.00    -0.01       0.00    -0.04

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.

10RD188    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.644    40.644    40.644
ecceobj         0.062     0.062     0.062
incobj         27.943    27.943    27.943
qmin           37.313    37.296    37.285
qmax           43.820    43.843    43.828
amean          40.469    40.469    40.469
amin           40.158    40.170    40.170
amax           40.784    40.784    40.789
emean           0.062     0.062     0.062
emin            0.051     0.051     0.051
emax            0.075     0.075     0.075
imean          26.523    26.523    26.523
imin           26.114    26.118    26.119
imax           26.934    26.939    26.938
excite_mean     0.451     0.451     0.451
fracstop        1.000     1.000     1.000
cjmean          2.815     2.815     2.815

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       173.6     173.6     173.5
kozaiamp        180.0     180.0     180.0