Orbit Fit and Astrometric record for 10PT66

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: 10PT66    
# Created Tue Dec 19 02:37:36 2017
# Orbit generated from Bernstein formalism
# Fitting   45 observations of   46
# Arc:   4.27y
# First observation: 2010/08/15
#  Last observation: 2014/11/22
Preliminary a, adot, b, bdot, g, gdot:
   0.000668   0.033010  -0.000036  -0.007112   0.029363   0.000000
# Chi-squared of fit:   114.31 DOF:   84 RMS:  0.28
# Min/Max residuals:    -0.83    0.64
# Exact a, adot, b, bdot, g, gdot:
  1.432752E-05  3.355632E-02 -2.735352E-06 -7.235963E-03  2.806216E-02  4.917916E-03
# Covariance matrix:
  1.0580E-13 -4.8235E-15  1.3734E-16 -3.1503E-15  8.9698E-14  4.6859E-14
 -4.8235E-15  2.8745E-13  9.2551E-15 -6.4606E-14  1.7433E-13  2.3148E-12
  1.3734E-16  9.2551E-15  7.4718E-14 -2.2173E-14  4.8428E-15  7.8116E-14
 -3.1503E-15 -6.4606E-14 -2.2173E-14  2.4808E-14 -3.9553E-14 -5.3957E-13
  8.9698E-14  1.7433E-13  4.8428E-15 -3.9553E-14  3.1969E-13  1.2440E-12
  4.6859E-14  2.3148E-12  7.8116E-14 -5.3957E-13  1.2440E-12  1.9505E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -14.218281  -23.151241    0.257749   -0.239527   -0.945251  2455423.688016
# Heliocentric elements and errors
Epoch:              2455420.5000  =  2010/08/12
Mean Anomaly:            9.10184 +/-     0.007
Argument of Peri:      203.82539 +/-     0.021
Long of Asc Node:      108.76551 +/-     0.000
Inclination:            18.43261 +/-     0.000
Eccentricity:         0.43708089 +/-    0.0001
Semi-Major Axis:     63.09203046 +/-    0.0100
Time of Perihelion: 2450792.5670 +/-       3.4
Perihelion:          35.51570941 +/-    0.0086
Aphelion:            90.66835151 +/-    0.0158
Period (y)              501.1526 +/-      0.12
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.56140524 +/-    0.0006
Ecliptic Y          -14.20261523 +/-    0.0003
Ecliptic Z           -8.75268457 +/-    0.0002
Ecliptic XDOT         0.00155620 +/-    0.0000
Ecliptic YDOT         0.00290182 +/-    0.0000
Ecliptic ZDOT        -0.00080222 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.58645758 +/-    0.0006
Geocenter to KBO     35.63518121 +/-    0.0007
# Hcoef:  5.95

The following table shows the complete astrometric record for 10PT66. 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 (10PT66) followed by the observatory code and reference code for the source of the astrometry.

2010 08  15.18725  22 56 51.533  -22 08 41.17  21.2R 10PT66    809  C~0M7t      
2010 08  15.26954  22 56 51.101  -22 08 44.77  21.3R 10PT66    809  C~0M7t      
2010 08  15.35056  22 56 50.713  -22 08 47.68  21.3R 10PT66    809  C~0M7t      
2010 08  16.18153  22 56 46.758  -22 09 20.70  22.5R 10PT66    809  C~0M7t      
2010 08  16.26637  22 56 46.348  -22 09 23.94  22.0R 10PT66    809  C~0M7t      
2010 08  16.34576  22 56 45.923  -22 09 27.07  22.2R 10PT66    809  C~0M7t      
2010 08  18.28059  22 56 36.51   -22 10 41.4         10PT66    807  C~0Mw2      
2010 08  19.24832  22 56 31.79   -22 11 19.8         10PT66    807  C~0Mw2      
2010 09  03.39744  22 55 14.603  -22 20 24.45  21.3i 10PT66    F51  C~1vWF      
2010 09  03.40847  22 55 14.544  -22 20 24.71  21.1i 10PT66    F51  C~1vWF      
2010 09  03.42076  22 55 14.482  -22 20 25.18  21.3r 10PT66    F51  C~1vWF      
2010 09  03.43176  22 55 14.423  -22 20 25.47  21.5r 10PT66    F51  C~1vWF      
2010 09  16.22259  22 54 08.27   -22 26 48.5         10PT66    807  C~0NJ7      
2010 09  16.27079  22 54 08.03   -22 26 50.1         10PT66    807  C~0NJ7      
2010 09  17.26917  22 54 02.96   -22 27 16.4   19.2R 10PT66    688  C~0NJ7      
2010 09  17.31384  22 54 02.74   -22 27 17.2         10PT66    688  C~0NJ7      
2010 10  08.20164  22 52 25.55   -22 33 57.2   20.8R 10PT66    688  C~0NnL      
2010 10  08.25694  22 52 25.34   -22 33 57.9         10PT66    688  C~0NnL      
2010 10  11.15007  22 52 13.74   -22 34 28.7         10PT66    807  C~0NnL      
2010 10  11.22347  22 52 13.39   -22 34 29.3         10PT66    807  C~0NnL      
2011 09  20.21207  23 02 08.50   -22 05 29.3         10PT66    807  C~10hB      
2011 09  20.24540  23 02 08.34   -22 05 30.4         10PT66    807  C~10hB      
2013 09  09.38350  23 19 15.234  -21 10 50.07  22.0g 10PT66    F51  C~1vWF      
2013 09  09.39430  23 19 15.156  -21 10 50.42  21.8g 10PT66    F51  C~1vWF      
2013 09  09.42590  23 19 14.997  -21 10 51.70  21.3r 10PT66    F51  C~1vWF      
2013 09  09.43636  23 19 14.884  -21 10 52.11  21.6r 10PT66    F51  C~1vWF      
2013 09  23.37105  23 18 04.437  -21 17 39.07  21.4r 10PT66    F51  C~1vWF      
2013 09  23.38124  23 18 04.413  -21 17 39.17  21.5r 10PT66    F51  C~1vWF      
2013 09  23.39251  23 18 04.325  -21 17 39.71  21.1i 10PT66    F51  C~1vWF      
2013 11  06.08685  23 15 15.64   -21 24 39.5   21.0R 10PT66    G37  C~10hB      
2013 11  06.16537  23 15 15.49   -21 24 38.7         10PT66    G37  C~10hB      
2014 08  28.50662  23 28 09.575  -20 37 00.58  21.7w 10PT66    F51  C~1vWF      
2014 08  28.51734  23 28 09.531  -20 37 00.76  21.4w 10PT66    F51  C~1vWF      
2014 08  28.52807  23 28 09.473  -20 37 01.25  21.7w 10PT66    F51  C~1vWF      
2014 08  28.53882  23 28 09.420  -20 37 01.21  21.6w 10PT66    F51  C~1vWF      
2014 09  17.38432  23 26 30.366  -20 48 24.57  21.5w 10PT66    F51  C~1vWF      
2014 09  17.39559  23 26 30.316  -20 48 24.92  21.4w 10PT66    F51  C~1vWF      
2014 09  17.40685  23 26 30.257  -20 48 25.23  21.6w 10PT66    F51  C~1vWF      
2014 09  17.41808  23 26 30.201  -20 48 25.57  21.3w 10PT66    F51  C~1vWF      
2014 11  20.26712  23 22 41.243  -20 56 25.12  21.7w 10PT66    F51  C~1vWF      
2014 11  20.27932  23 22 41.246  -20 56 24.96  21.5w 10PT66    F51  C~1vWF      
2014 11  20.29153  23 22 41.233  -20 56 24.64  21.7w 10PT66    F51  C~1vWF      
2014 11  22.25398  23 22 39.340  -20 55 49.60  21.8w 10PT66    F51  C~1vWF      
2014 11  22.26619  23 22 39.330  -20 55 49.49  21.7w 10PT66    F51  C~1vWF      
2014 11  22.27845  23 22 39.344  -20 55 49.56  21.7w 10PT66    F51  C~1vWF      
2014 11  22.29067  23 22 39.330  -20 55 48.93  21.5w 10PT66    F51  C~1vWF      

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 (   0.94)      0.00 (  -0.28)
  2   0.0002     -6.94     0.40      -0.94    -0.43
  3   0.0004    -13.04     0.58      -1.48    -0.23
  4   0.0027    -76.56     0.53     -10.13    -0.69
  5   0.0030    -83.07     0.64     -10.86    -0.64
  6   0.0032    -89.73     0.16     -11.40    -0.49
  7   0.0085   -239.21     0.02     -28.10     0.50
  8   0.0111   -314.60    -0.18     -37.53    -0.65
  9   0.0526  -1513.98    -0.04    -116.74     0.06
 10   0.0526  -1514.83    -0.00    -116.66     0.16
 11   0.0527  -1515.81     0.01    -116.76     0.09
 12   0.0527  -1516.68     0.03    -116.70     0.16
 13   0.0877  -2510.96    -0.23    -109.89     0.22
 14   0.0878  -2514.65    -0.25    -110.07    -0.13
 15   0.0906  -2589.63    -0.49    -106.82     0.08
 16   0.0907  -2592.75    -0.23    -106.36     0.35
 17   0.1479  -3989.36    -0.34      49.58     0.28
 18   0.1480  -3992.31    -0.07      50.07     0.12
 19   0.1560  -4152.41     0.26      84.02     0.15
 20   0.1562  -4157.11    -0.43      85.35     0.53
 21   1.0979   4116.24    -0.22   -1581.10     0.52
 22   1.0980   4113.76    -0.20   -1581.21     0.23
 23   3.0697  18552.27     0.26   -4557.70    -0.05
 24   3.0697  18551.13    -0.02   -4557.54     0.09
 25   3.0698  18548.55    -0.05   -4557.75    -0.16
 26   3.0698  18546.93    -0.83   -4557.44     0.14
 27   3.1080  17474.10    -0.08   -4503.68     0.09
 28   3.1080  17473.75     0.34   -4503.63     0.07
 29   3.1080  17472.40    -0.16   -4503.59     0.02
 30   3.2277  15144.75    -0.09   -3880.27    -0.00
 31   3.2279  15143.18     0.42   -3878.65     0.01
 32   4.0365  26274.23    -0.30   -5999.20    -0.20
 33   4.0365  26273.58    -0.09   -5999.08    -0.04
 34   4.0365  26272.62    -0.20   -5999.17    -0.08
 35   4.0366  26271.96     0.00   -5998.80     0.32
 36   4.0909  24698.97    -0.14   -5999.78     0.08
 37   4.0909  24698.17    -0.04   -5999.79     0.02
 38   4.0910  24697.28    -0.04   -5999.70     0.05
 39   4.0910  24696.41    -0.02   -5999.66     0.03
 40   4.2658  21557.11    -0.03   -5023.18     0.05
 41   4.2658  21557.22     0.17   -5023.06    -0.10
 42   4.2659  21557.19     0.23   -5022.69    -0.01
 43   4.2712  21548.28     0.07   -4979.35     0.07
 44   4.2713  21548.20     0.04   -4979.19    -0.04
 45   4.2713  21548.35     0.24   -4979.34    -0.47
 46   4.2713  21548.45     0.38   -4978.68    -0.09

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.

10PT66    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        62.753    62.784    62.722
ecceobj         0.434     0.435     0.434
incobj         18.456    18.456    18.456
qmin           34.229    33.997    34.479
qmax           93.392    93.293    92.742
amean          62.857    62.662    62.735
amin           61.404    61.430    61.483
amax           64.216    64.096    64.130
emean           0.434     0.433     0.428
emin            0.405     0.408     0.403
emax            0.457     0.457     0.450
imean          16.820    16.932    17.139
imin           15.477    15.764    15.856
imax           18.314    18.378    18.443
excite_mean     0.522     0.522     0.520
fracstop        1.000     1.000     1.000
cjmean          2.970     2.967     2.973

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       189.9     188.1     185.2
kozaiamp        180.0     180.0     180.0