Orbit Fit and Astrometric record for 03QA92

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: 03QA92    
# Created Thu Oct 19 01:37:24 2017
# Orbit generated from Bernstein formalism
# Fitting   31 observations of   31
# Arc:   8.98y
# First observation: 2003/08/24
#  Last observation: 2012/08/16
Preliminary a, adot, b, bdot, g, gdot:
  -0.001205   0.028731   0.000060  -0.001425   0.025330   0.000000
# Chi-squared of fit:    87.65 DOF:   56 RMS:  0.30
# Min/Max residuals:    -1.38    0.61
# Exact a, adot, b, bdot, g, gdot:
  1.507979E-05  2.785571E-02 -1.765811E-06 -1.382459E-03  2.717808E-02 -1.706576E-03
# Covariance matrix:
  1.0669E-13 -4.9057E-14 -1.4375E-15  1.6613E-15  3.3831E-14 -1.4465E-13
 -4.9057E-14  5.6415E-14  1.8743E-15 -2.4420E-15 -1.8067E-14  2.1172E-13
 -1.4375E-15  1.8743E-15  7.9426E-14 -1.3569E-14 -1.7573E-15  7.6254E-15
  1.6613E-15 -2.4420E-15 -1.3569E-14  5.7473E-15  4.3732E-16 -1.0255E-14
  3.3831E-14 -1.8067E-14 -1.7573E-15  4.3732E-16  1.9172E-13 -4.3332E-14
 -1.4465E-13  2.1172E-13  7.6254E-15 -1.0255E-14 -4.3332E-14  8.8817E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.991429  -36.027198   -0.113333   -0.035022   -1.008469  2452875.591713
# Heliocentric elements and errors
Epoch:              2452870.5000  =  2003/08/19
Mean Anomaly:          279.75314 +/-     0.044
Argument of Peri:      301.32209 +/-     0.053
Long of Asc Node:      109.82332 +/-     0.002
Inclination:             3.43520 +/-     0.000
Eccentricity:         0.05893749 +/-    0.0000
Semi-Major Axis:     38.04931941 +/-    0.0026
Time of Perihelion: 2471979.7807 +/-      10.3
Perihelion:          35.80678786 +/-    0.0027
Aphelion:            40.29185096 +/-    0.0030
Period (y)              234.7084 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.61927064 +/-    0.0005
Ecliptic Y          -22.12601532 +/-    0.0004
Ecliptic Z           -1.27867280 +/-    0.0000
Ecliptic XDOT         0.00150234 +/-    0.0000
Ecliptic YDOT         0.00236759 +/-    0.0000
Ecliptic ZDOT        -0.00013303 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.79861496 +/-    0.0004
Geocenter to KBO     36.79436206 +/-    0.0006
# Hcoef:  6.65

The following table shows the complete astrometric record for 03QA92. 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 (03QA92) followed by the observatory code and reference code for the source of the astrometry.

2003 08  24.09097  21 47 52.79   -15 24 31.1   20.7R 03QA92    807  Ci4137      
2003 08  24.18809  21 47 52.28   -15 24 33.7         03QA92    807  Ci4137      
2003 08  25.11656  21 47 47.53   -15 24 58.3         03QA92    807  Ci4137      
2003 08  25.19767  21 47 47.10   -15 25 00.5         03QA92    807  Ci4137      
2003 09  02.98795  21 47 02.76   -15 28 47.4   22.0R 03QA92    304  Ci4587      
2003 09  03.02664  21 47 02.57   -15 28 48.7         03QA92    304  Ci4587      
2003 09  28.14909  21 45 12.61   -15 37 45.5   22.0R 03QA92    688  Ci6257      
2003 09  28.19605  21 45 12.43   -15 37 46.8         03QA92    688  Ci6257      
2003 09  28.24238  21 45 12.26   -15 37 47.3         03QA92    688  Ci6257      
2003 09  28.32214  21 45 11.95   -15 37 48.8         03QA92    688  Ci6257      
2003 10  01.28131  21 45 01.57   -15 38 37.0   22.0R 03QA92    568  Ci6964      
2003 10  02.26184  21 44 58.31   -15 38 51.4         03QA92    568  Ci6964      
2003 10  02.34828  21 44 57.97   -15 38 53.4         03QA92    568  Ci6964      
2004 07  17.18953  21 57 13.11   -14 39 56.4   20.9R 03QA92    807  Cl4360      
2004 07  17.29220  21 57 12.68   -14 39 59.0         03QA92    807  Cl4360      
2004 08  08.94084  21 55 26.61   -14 50 06.1         03QA92    246  C~05DA      
2004 08  23.13275  21 54 13.80   -14 56 39.0   21.8R 03QA92    304  Cl4360      
2004 08  23.26888  21 54 13.09   -14 56 42.7         03QA92    304  Cl4360      
2006 09  20.27600  22 04 38.52   -14 10 52.7   22.2R 03QA92    568  Cv2406      
2006 09  20.31090  22 04 38.40   -14 10 53.3   22.2R 03QA92    568  Cv2406      
2006 09  25.12363  22 04 17.87   -14 12 37.5   21.6R 03QA92    688  Cs0973      
2006 09  25.22633  22 04 17.49   -14 12 39.5         03QA92    688  Cs0973      
2007 05  22.37809  22 17 27.57   -12 59 55.6   22.6R 03QA92    250  S~06Ad      
2007 05  22.44475  22 17 27.66   -12 59 55.5         03QA92    250  S~06Ad      
2007 05  22.46489  22 17 27.68   -12 59 55.4         03QA92    250  S~06Ad      
2007 05  22.47184  22 17 27.69   -12 59 55.4         03QA92    250  S~06Ad      
2009 09  18.13246  22 23 44.15   -12 38 46.0   22.3R 03QA92    688  C~09at      
2009 09  18.17701  22 23 43.91   -12 38 47.4         03QA92    688  C~09at      
2012 08  16.594321 22 45 20.61   -10 45 04.1   23.1R 03QA92    F65  C~0i3E      
2012 08  16.599289 22 45 20.58   -10 45 04.2   22.2R 03QA92    F65  C~0i3E      
2012 08  16.604252 22 45 20.56   -10 45 04.5   23.3R 03QA92    F65  C~0i3E      

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     0.23       0.00     0.20
  2   0.0003     -7.82     0.20       0.01     0.21
  3   0.0028    -80.78     0.36      -0.26     0.27
  4   0.0030    -87.37     0.25      -0.26     0.26
  5   0.0271   -767.42     0.01      -0.60     0.47
  6   0.0272   -770.44    -0.05      -0.92     0.15
  7   0.0960  -2447.64    -0.07      19.86     0.27
  8   0.0961  -2450.52    -0.31      19.49    -0.18
  9   0.0962  -2453.00    -0.18      19.83     0.07
 10   0.0965  -2457.73    -0.44      19.90    -0.02
 11   0.1046  -2615.19    -0.20      23.99    -0.31
 12   0.1072  -2664.40     0.61      25.96     0.13
 13   0.1075  -2669.70    -0.22      25.69    -0.31
 14   0.8983   8547.95    -0.01    -232.85     0.23
 15   0.8986   8541.18     0.06    -233.15     0.15
 16   0.9606   6885.37    -0.48    -276.17    -1.38
 17   0.9994   5758.11    -0.07    -285.39     0.16
 18   0.9998   5747.17    -0.04    -285.37     0.18
 19   3.0751  15244.04    -0.04    -847.69    -0.28
 20   3.0752  15242.18     0.52    -847.64    -0.29
 21   3.0884  14924.36    -0.21    -840.33     0.19
 22   3.0887  14918.46     0.53    -840.26     0.06
 23   3.7434  27368.80    -0.08    -882.34    -0.18
 24   3.7436  27370.09     0.00    -882.72    -0.27
 25   3.7437  27370.40    -0.04    -882.74    -0.20
 26   3.7437  27370.54    -0.03    -882.79    -0.22
 27   6.0699  33079.67     0.02   -1730.47     0.16
 28   6.0701  33075.79    -0.48   -1730.47     0.08
 29   8.9815  54208.40     0.09   -2663.88     0.12
 30   8.9815  54207.92     0.03   -2663.80     0.20
 31   8.9816  54207.51     0.03   -2663.96     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.

03QA92    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        38.349    38.357    38.341
ecceobj         0.062     0.062     0.062
incobj          3.432     3.432     3.432
qmin           35.457    35.459    35.434
qmax           41.279    41.383    41.301
amean          38.285    38.293    38.277
amin           37.999    38.006    37.979
amax           38.577    38.602    38.585
emean           0.049     0.049     0.049
emin            0.024     0.024     0.025
emax            0.071     0.072     0.071
imean           2.528     2.541     2.515
imin            0.976     0.978     0.977
imax            3.815     3.824     3.814
excite_mean     0.067     0.068     0.067
fracstop        1.000     1.000     1.000
cjmean          3.037     3.037     3.037

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       174.4     174.8     173.5
kozaiamp        179.9     180.0     179.9