Orbit Fit and Astrometric record for 05JA175

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: 05JA175   
# Created Sat Oct 21 01:37:36 2017
# Orbit generated from Bernstein formalism
# Fitting   27 observations of   27
# Arc:  10.04y
# First observation: 2005/05/10
#  Last observation: 2015/05/24
Preliminary a, adot, b, bdot, g, gdot:
  -0.000079   0.018640  -0.000033   0.004721   0.021498   0.000000
# Chi-squared of fit:    59.88 DOF:   48 RMS:  0.26
# Min/Max residuals:    -0.55    0.47
# Exact a, adot, b, bdot, g, gdot:
  1.187620E-05  1.856027E-02  2.287444E-06  4.696991E-03  2.191338E-02  7.295141E-04
# Covariance matrix:
  2.2465E-13 -1.9064E-13  2.9539E-14 -4.4995E-14  2.5249E-13 -9.4609E-13
 -1.9064E-13  2.3481E-13 -3.8222E-14  5.7930E-14 -2.8853E-13  1.2174E-12
  2.9539E-14 -3.8222E-14  8.8333E-14 -2.0958E-14  4.5604E-14 -2.0245E-13
 -4.4995E-14  5.7930E-14 -2.0958E-14  1.9297E-14 -7.1228E-14  3.0663E-13
  2.5249E-13 -2.8853E-13  4.5604E-14 -7.1228E-14  6.2120E-13 -1.5016E-12
 -9.4609E-13  1.2174E-12 -2.0245E-13  3.0663E-13 -1.5016E-12  6.4435E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.280904 -140.058708   -0.171204   -0.022062   -0.991707  2453500.703813
# Heliocentric elements and errors
Epoch:              2453500.5000  =  2005/05/10
Mean Anomaly:          152.57157 +/-     0.103
Argument of Peri:      197.48570 +/-     0.091
Long of Asc Node:      225.09896 +/-     0.000
Inclination:            14.23038 +/-     0.000
Eccentricity:         0.10217978 +/-    0.0001
Semi-Major Axis:     42.67645817 +/-    0.0071
Time of Perihelion: 2410343.4168 +/-      27.1
Perihelion:          38.31578706 +/-    0.0074
Aphelion:            47.03712927 +/-    0.0086
Period (y)              278.7987 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -35.63370637 +/-    0.0013
Ecliptic Y          -30.05909969 +/-    0.0010
Ecliptic Z           -1.02000991 +/-    0.0000
Ecliptic XDOT         0.00140949 +/-    0.0000
Ecliptic YDOT        -0.00185191 +/-    0.0000
Ecliptic ZDOT         0.00058471 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.62993592 +/-    0.0012
Geocenter to KBO     45.63422745 +/-    0.0016
# Hcoef:  5.78

The following table shows the complete astrometric record for 05JA175. 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 (05JA175) followed by the observatory code and reference code for the source of the astrometry.

2005 05  10.20307  14 28 27.18   -16 00 39.1   21.0R 05JA175   807  Cn5431      
2005 05  11.03883  14 28 23.64   -16 00 19.3         05JA175   807  Cn5431      
2005 05  11.12793  14 28 23.26   -16 00 17.3         05JA175   807  Cn5431      
2005 06  02.33776  14 26 56.11   -15 51 59.9   22.5R 05JA175   568  Cn6562      
2005 06  02.37203  14 26 55.99   -15 51 59.2         05JA175   568  Cn6562      
2005 06  07.16824  14 26 39.76   -15 50 22.1   22.3R 05JA175   304  Cn6562      
2005 06  07.21273  14 26 39.61   -15 50 21.1         05JA175   304  Cn6562      
2005 07  09.06779  14 25 28.05   -15 42 21.7   22.3R 05JA175   304  Cn8899      
2005 07  09.12024  14 25 28.02   -15 42 21.2         05JA175   304  Cn8899      
2005 08  08.00979  14 25 31.62   -15 40 27.6   21.1R 05JA175   807  Co4001      
2005 08  09.01813  14 25 33.01   -15 40 30.1         05JA175   807  Co4001      
2005 08  10.01076  14 25 34.46   -15 40 33.1         05JA175   807  Co4001      
2006 04  22.26917  14 34 19.34   -16 12 28.3   22.2R 05JA175   304  Cr3594      
2006 04  22.32154  14 34 19.10   -16 12 27.5         05JA175   304  Cr3594      
2006 04  26.22973  14 34 02.35   -16 10 58.1   21.0R 05JA175   807  Cr3594      
2006 04  26.31446  14 34 01.98   -16 10 56.0         05JA175   807  Cr3594      
2006 04  28.09123  14 33 54.30   -16 10 15.5         05JA175   807  Cr3594      
2008 04  05.36194  14 44 32.47   -16 26 26.6   23.2R 05JA175   688  Cy5744      
2008 04  05.45512  14 44 32.10   -16 26 24.1         05JA175   688  Cy5744      
2008 04  14.04476  14 43 58.47   -16 23 30.4   23.1R 05JA175   250  S~06As      
2008 04  14.05865  14 43 58.42   -16 23 30.1         05JA175   250  S~06As      
2008 04  14.06490  14 43 58.39   -16 23 30.0         05JA175   250  S~06As      
2008 04  14.07115  14 43 58.36   -16 23 29.9         05JA175   250  S~06As      
2015 05  20.06929  15 13 08.78   -16 28 29.9   23.1V 05JA175   W84  C~1Til      
2015 05  22.15654  15 12 59.76   -16 27 49.2         05JA175   W84  C~1Til      
2015 05  23.06947  15 12 55.85   -16 27 31.7         05JA175   W84  C~1Til      
2015 05  24.06954  15 12 51.55   -16 27 12.4         05JA175   W84  C~1Til      

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     0.31       0.00     0.23
  2   0.0023    -54.69     0.22       2.58     0.30
  3   0.0025    -60.52     0.29       2.74     0.23
  4   0.0633  -1410.49     0.18      74.33    -0.01
  5   0.0634  -1412.35     0.22      74.44    -0.01
  6   0.0766  -1665.30     0.20      91.71    -0.03
  7   0.0767  -1667.67     0.13      91.97     0.07
  8   0.1639  -2799.88    -0.52     215.63    -0.46
  9   0.1640  -2800.45    -0.10     215.97    -0.33
 10   0.2459  -2787.63     0.07     340.25    -0.05
 11   0.2486  -2767.81    -0.11     344.32    -0.15
 12   0.2514  -2747.01    -0.25     348.19    -0.37
 13   0.9502   5042.09    -0.43     919.98     0.07
 14   0.9504   5038.56    -0.48     919.66    -0.36
 15   0.9611   4781.29     0.07     929.66    -0.09
 16   0.9613   4775.57     0.05     930.00     0.05
 17   0.9662   4657.76     0.07     934.08    -0.47
 18   2.9053  13724.15    -0.16    2814.11    -0.25
 19   2.9055  13718.29    -0.55    2814.91     0.35
 20   2.9291  13202.38     0.15    2835.82     0.43
 21   2.9291  13201.60     0.23    2835.89     0.47
 22   2.9291  13201.16     0.18    2835.86     0.42
 23   2.9291  13200.72     0.13    2835.82     0.37
 24  10.0256  37869.19    -0.23    9766.90    -0.04
 25  10.0314  37728.60     0.01    9771.25    -0.01
 26  10.0339  37667.71     0.25    9772.99    -0.16
 27  10.0366  37600.73     0.06    9774.95    -0.21

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.

05JA175    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.229    42.250    42.208
ecceobj         0.112     0.112     0.112
incobj         14.316    14.316    14.316
qmin           36.414    36.543    36.263
qmax           48.997    48.871    49.146
amean          42.548    42.565    42.531
amin           42.181    42.199    42.163
amax           42.944    42.952    42.924
emean           0.118     0.118     0.119
emin            0.096     0.100     0.093
emax            0.142     0.138     0.145
imean          15.396    15.441    15.328
imin           14.662    14.714    14.397
imax           16.232    16.264    16.298
excite_mean     0.291     0.291     0.290
fracstop        1.000     1.000     1.000
cjmean          2.984     2.983     2.984

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       181.9     180.2     185.5
kozaiamp        180.0     180.0     180.0