Orbit Fit and Astrometric record for 10RF188

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: 10RF188   
# Created Mon Dec 17 02:09:08 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   44 observations of   44
# Arc:  11.83y
# First observation: 2001/11/12
#  Last observation: 2013/09/09
# Chi-squared of fit:    44.89 DOF:   82 RMS:  0.18
# Min/Max residuals:    -0.60    0.46
# Exact a, adot, b, bdot, g, gdot:
  1.066126E-05  1.207944E-02 -1.741842E-06 -2.986137E-03  1.751867E-02 -2.501873E-03
# Covariance matrix:
  1.3644E-13 -5.2106E-14 -1.3035E-14  1.0532E-14 -4.9169E-14 -2.8820E-13
 -5.2106E-14  3.9999E-14  1.0278E-14 -8.3534E-15 -2.0934E-14  2.2669E-13
 -1.3035E-14  1.0278E-14  7.9154E-14 -1.0867E-14  3.6361E-15  6.4616E-14
  1.0532E-14 -8.3534E-15 -1.0867E-14  3.5800E-15 -2.5325E-15 -5.2341E-14
 -4.9169E-14 -2.0934E-14  3.6361E-15 -2.5325E-15  5.1367E-13  8.5098E-14
 -2.8820E-13  2.2669E-13  6.4616E-14 -5.2341E-14  8.5098E-14  1.4272E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.208983   -1.620927   -0.768246   -0.002351   -0.615384  2452225.658565
# Heliocentric elements and errors
Epoch:              2452226.5000  =  2001/11/13
Mean Anomaly:          228.90852 +/-     0.032
Argument of Peri:      332.05605 +/-     0.016
Long of Asc Node:      178.30874 +/-     0.000
Inclination:            13.84191 +/-     0.000
Eccentricity:         0.29530333 +/-    0.0001
Semi-Major Axis:     46.85936746 +/-    0.0057
Time of Perihelion: 2494890.8389 +/-      17.1
Perihelion:          33.02164031 +/-    0.0057
Aphelion:            60.69709461 +/-    0.0085
Period (y)              320.7767 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           57.69759533 +/-    0.0023
Ecliptic Y           -0.85792094 +/-    0.0001
Ecliptic Z           -0.20828787 +/-    0.0000
Ecliptic XDOT        -0.00034778 +/-    0.0000
Ecliptic YDOT         0.00189843 +/-    0.0000
Ecliptic ZDOT        -0.00046504 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   57.70447233 +/-    0.0023
Geocenter to KBO     57.08213650 +/-    0.0023
# Hcoef:  5.01

The following table shows the complete astrometric record for 10RF188. 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 (10RF188) followed by the observatory code and reference code for the source of the astrometry.

2001 11  12.157822 23 54 23.01   -00 50 11.2   22.4V 10RF188   645  C~2PON      
2001 11  12.158651 23 54 23.01   -00 50 11.1   22.3V 10RF188   645  C~2PON      
2001 11  12.161139 23 54 23.01   -00 50 11.1   23.2V 10RF188   645  C~2PON      
2001 11  18.193405 23 54 12.52   -00 51 28.9   22.6V 10RF188   645  C~2PON      
2001 11  18.194235 23 54 12.52   -00 51 28.9   22.5V 10RF188   645  C~2PON      
2001 11  18.196722 23 54 12.53   -00 51 28.9   23.5V 10RF188   645  C~2PON      
2002 10  30.202723 23 57 41.96   -00 39 30.2   22.3V 10RF188   645  C~2PON      
2002 10  30.203553 23 57 41.96   -00 39 30.2   22.4V 10RF188   645  C~2PON      
2002 10  30.206040 23 57 41.96   -00 39 30.2   23.8V 10RF188   645  C~2PON      
2002 11  08.207250 23 57 20.59   -00 42 02.5   22.1V 10RF188   645  C~2PON      
2002 11  08.208079 23 57 20.60   -00 42 02.6   22.3V 10RF188   645  C~2PON      
2002 11  08.210567 23 57 20.62   -00 42 02.9   22.9V 10RF188   645  C~2PON      
2003 10  22.212463 00 00 54.86   -00 29 40.7   22.4V 10RF188   645  C~2PON      
2003 10  22.213293 00 00 54.85   -00 29 40.7   21.7V 10RF188   645  C~2PON      
2003 10  22.215780 00 00 54.86   -00 29 40.7   24.5V 10RF188   645  C~2PON      
2003 10  24.208553 00 00 49.13   -00 30 21.3   22.1V 10RF188   645  C~2PON      
2003 10  24.209382 00 00 49.12   -00 30 21.1   21.9V 10RF188   645  C~2PON      
2003 10  24.211870 00 00 49.13   -00 30 21.3   23.6V 10RF188   645  C~2PON      
2003 11  20.139518 23 59 48.25   -00 37 34.9   22.3V 10RF188   645  C~2PON      
2003 11  20.140347 23 59 48.27   -00 37 34.8   21.9V 10RF188   645  C~2PON      
2003 11  20.142835 23 59 48.28   -00 37 34.5   23.1V 10RF188   645  C~2PON      
2004 09  22.275459 00 05 20.41   -00 11 27.4   21.8V 10RF188   645  C~2PON      
2004 09  22.276289 00 05 20.42   -00 11 27.1   22.8V 10RF188   645  C~2PON      
2004 09  22.278777 00 05 20.40   -00 11 27.6   22.8V 10RF188   645  C~2PON      
2004 11  03.202402 00 03 11.50   -00 26 31.7   22.2V 10RF188   645  C~2PON      
2004 11  03.203232 00 03 11.50   -00 26 31.7   22.2V 10RF188   645  C~2PON      
2004 11  03.205719 00 03 11.50   -00 26 31.7   23.0V 10RF188   645  C~2PON      
2010 09  15.50735  00 23 16.967  +00 35 54.59  22.8w 10RF188   F51  C~1w3j      
2010 09  16.44039  00 23 13.886  +00 35 32.37  22.8w 10RF188   F51  C~1w3k      
2010 09  16.47387  00 23 13.773  +00 35 31.53  22.7w 10RF188   F51  C~1w3k      
2010 10  03.40015  00 22 16.277  +00 28 45.06  22.8w 10RF188   F51  C~1w3k      
2010 10  03.42871  00 22 16.162  +00 28 44.47  23.1w 10RF188   F51  C~1w3k      
2010 10  09.31076  00 21 56.196  +00 26 25.88  22.2r 10RF188   F51  C~1w3k      
2011 09  26.42597  00 25 40.419  +00 39 14.91  23.1w 10RF188   F51  C~1w3k      
2011 09  26.43999  00 25 40.384  +00 39 14.42  22.8w 10RF188   F51  C~1w3k      
2011 09  26.47475  00 25 40.253  +00 39 13.84  22.7w 10RF188   F51  C~1w3k      
2011 10  16.45061  00 24 32.437  +00 31 23.24  21.3i 10RF188   F51  C~1w3k      
2012 11  05.29639  00 26 29.890  +00 32 00.31  22.6w 10RF188   F51  C~1w3k      
2012 11  05.32655  00 26 29.800  +00 31 59.78  22.9w 10RF188   F51  C~1w3k      
2013 09  04.47233  00 32 52.190  +01 02 59.29  22.5w 10RF188   F51  C~1w3k      
2013 09  04.48732  00 32 52.133  +01 02 58.84  22.6w 10RF188   F51  C~1w3k      
2013 09  09.46930  00 32 36.712  +01 01 04.67  22.2w 10RF188   F51  C~1w3k      
2013 09  09.48401  00 32 36.663  +01 01 04.42  22.4w 10RF188   F51  C~1w3k      
2013 09  09.49874  00 32 36.602  +01 01 04.25  22.2w 10RF188   F51  C~1w3k      

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     0.12       0.00    -0.16
  2   0.0000      0.00     0.15       0.00    -0.05
  3   0.0000      0.00     0.22       0.00    -0.01
  4   0.0165      0.00    -0.14       0.00     0.04
  5   0.0165      0.00    -0.12       0.00     0.05
  6   0.0165      0.00     0.09       0.00     0.08
  7   0.9638      0.00    -0.02       0.00    -0.22
  8   0.9638      0.00     0.01       0.00    -0.21
  9   0.9639      0.00     0.11       0.00    -0.16
 10   0.9885      0.00    -0.60       0.00     0.08
 11   0.9885      0.00    -0.43       0.00    -0.01
 12   0.9885      0.00    -0.04       0.00    -0.27
 13   1.9413      0.00     0.04       0.00     0.27
 14   1.9413      0.00    -0.07       0.00     0.29
 15   1.9413      0.00     0.19       0.00     0.34
 16   1.9468      0.00     0.12       0.00     0.03
 17   1.9468      0.00     0.00       0.00     0.25
 18   1.9468      0.00     0.26       0.00     0.10
 19   2.0205      0.00    -0.07       0.00    -0.15
 20   2.0205      0.00     0.25       0.00    -0.04
 21   2.0205      0.00     0.46       0.00     0.29
 22   2.8614      0.00    -0.24       0.00    -0.17
 23   2.8614      0.00    -0.05       0.00     0.15
 24   2.8614      0.00    -0.22       0.00    -0.29
 25   2.9762      0.00    -0.03       0.00     0.00
 26   2.9762      0.00    -0.00       0.00     0.02
 27   2.9762      0.00     0.09       0.00     0.06
 28   8.8415      0.00    -0.02       0.00     0.09
 29   8.8440      0.00     0.11       0.00     0.06
 30   8.8441      0.00     0.11       0.00     0.02
 31   8.8905      0.00     0.06       0.00    -0.23
 32   8.8905      0.00    -0.17       0.00    -0.14
 33   8.9066      0.00    -0.14       0.00    -0.06
 34   9.8707      0.00     0.08       0.00    -0.04
 35   9.8707      0.00     0.28       0.00    -0.19
 36   9.8708      0.00     0.14       0.00     0.07
 37   9.9255      0.00    -0.17       0.00    -0.33
 38  10.9819      0.00     0.02       0.00    -0.15
 39  10.9820      0.00    -0.09       0.00    -0.14
 40  11.8119      0.00     0.10       0.00     0.15
 41  11.8120      0.00    -0.06       0.00     0.04
 42  11.8256      0.00    -0.00       0.00     0.07
 43  11.8257      0.00    -0.03       0.00     0.16
 44  11.8257      0.00    -0.23       0.00     0.33

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.

10RF188    quality flag:2

Type:       SCATNEAR  CENTAURR  SCATNEAR

axisobj        47.047    47.047    47.047
ecceobj         0.290     0.290     0.290
incobj         13.794    13.794    13.794
qmin           31.975    29.440    31.219
qmax           62.688    64.318    62.662
amean          46.516    46.091    45.454
amin           45.155    33.710    43.073
amax           47.660    47.956    47.649
emean           0.286     0.304     0.278
emin            0.256     0.118     0.236
emax            0.315     0.350     0.317
imean          14.358    12.294    13.817
imin           12.199     6.307    11.914
imax           15.821    15.055    16.131
excite_mean     0.379     0.373     0.367
fracstop        1.000     0.729     1.000
cjmean          2.955     2.954     2.954

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       179.3     177.3     178.8
kozaiamp        180.0     180.0     180.0