Orbit Fit and Astrometric record for 05SD278

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: 05SD278   
# Created Mon Oct 23 01:37:37 2017
# Orbit generated from Bernstein formalism
# Fitting   98 observations of   99
# Arc:   4.09y
# First observation: 2004/09/22
#  Last observation: 2008/10/24
Preliminary a, adot, b, bdot, g, gdot:
   0.000063   0.026684  -0.000045  -0.003027   0.024396   0.000000
# Chi-squared of fit:    96.82 DOF:  190 RMS:  0.18
# Min/Max residuals:    -1.28    0.45
# Exact a, adot, b, bdot, g, gdot:
  1.713512E-05  2.689003E-02 -2.343776E-06 -3.049059E-03  2.478487E-02  3.528585E-03
# Covariance matrix:
  1.5115E-13 -1.2393E-13 -9.1392E-15  1.2005E-14 -2.1539E-14 -9.1798E-13
 -1.2393E-13  1.8556E-13  2.1033E-14 -2.1874E-14  1.3942E-13  1.6754E-12
 -9.1392E-15  2.1033E-14  7.9360E-14 -3.3611E-14  2.2712E-14  2.0714E-13
  1.2005E-14 -2.1874E-14 -3.3611E-14  1.8356E-14 -1.7854E-14 -2.1556E-13
 -2.1539E-14  1.3942E-13  2.2712E-14 -1.7854E-14  2.4063E-13  1.3710E-12
 -9.1798E-13  1.6754E-12  2.0714E-13 -2.1556E-13  1.3710E-12  1.6511E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -16.863806   40.937178    0.665628   -0.219426   -0.724137  2453270.893543
# Heliocentric elements and errors
Epoch:              2453270.5000  =  2004/09/22
Mean Anomaly:           16.47711 +/-     0.017
Argument of Peri:      218.40734 +/-     0.034
Long of Asc Node:      152.71071 +/-     0.001
Inclination:            17.86586 +/-     0.000
Eccentricity:         0.27907632 +/-    0.0001
Semi-Major Axis:     55.32621771 +/-    0.0052
Time of Perihelion: 2446390.7359 +/-       6.9
Perihelion:          39.88598047 +/-    0.0066
Aphelion:            70.76645496 +/-    0.0086
Period (y)              411.5330 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.17179403 +/-    0.0006
Ecliptic Y           25.29435350 +/-    0.0005
Ecliptic Z          -11.70470546 +/-    0.0002
Ecliptic XDOT        -0.00173995 +/-    0.0000
Ecliptic YDOT         0.00241724 +/-    0.0000
Ecliptic ZDOT        -0.00043530 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.07482932 +/-    0.0005
Geocenter to KBO     40.34719573 +/-    0.0008
# Hcoef:  6.40

The following table shows the complete astrometric record for 05SD278. 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 (05SD278) followed by the observatory code and reference code for the source of the astrometry.

2004 09  22.392800 02 54 46.47   -00 57 31.3   22.3V 05SD278   645  C~2JxD      
2004 09  22.393630 02 54 46.46   -00 57 31.4   22.0V 05SD278   645  C~2JxD      
2004 09  22.396118 02 54 46.45   -00 57 31.6   23.0V 05SD278   645  C~2JxD      
2004 09  24.442861 02 54 40.32   -00 58 38.7   22.5V 05SD278   645  C~2JxD      
2004 09  24.443690 02 54 40.32   -00 58 38.7   22.2V 05SD278   645  C~2JxD      
2004 09  24.446178 02 54 40.33   -00 58 38.6   23.0V 05SD278   645  C~2JxD      
2005 09  25.43492  03 00 41.85   -00 41 22.4   23.1V 05SD278   705  cr7075      
2005 09  25.43824  03 00 41.86   -00 41 22.4   24.5  05SD278   705  cr7075      
2005 09  27.39925  03 00 35.78   -00 42 26.3   24.2  05SD278   705  Cv1544      
2005 09  27.40008  03 00 35.79   -00 42 26.3   23.1V 05SD278   705  Cv1544      
2005 10  03.46006  03 00 15.53   -00 45 41.4   22.9V 05SD278   705  cr7075      
2005 10  03.46338  03 00 15.53   -00 45 41.4   24.1  05SD278   705  cr7075      
2005 10  22.35857  02 58 59.66   -00 55 12.8   23.4  05SD278   705  cr7075      
2005 10  22.35940  02 58 59.64   -00 55 12.7   22.5V 05SD278   705  cr7075      
2005 10  23.45062  02 58 54.83   -00 55 43.1   22.7V 05SD278   705  cr7075      
2005 10  23.45394  02 58 54.83   -00 55 43.1   23.7  05SD278   705  cr7075      
2005 10  25.37004  02 58 46.26   -00 56 35.3   22.2V 05SD278   705  cr7075      
2005 10  25.37336  02 58 46.23   -00 56 35.8   23.0  05SD278   705  cr7075      
2005 10  26.45759  02 58 41.34   -00 57 04.7   22.6V 05SD278   705  cr7075      
2005 10  26.46092  02 58 41.34   -00 57 04.8   23.3  05SD278   705  cr7075      
2005 10  27.37479  02 58 37.19   -00 57 29.0   22.7V 05SD278   705  cr7075      
2005 10  27.37811  02 58 37.19   -00 57 29.0   23.6  05SD278   705  cr7075      
2005 10  30.34262  02 58 23.61   -00 58 45.0   22.5V 05SD278   705  cr7075      
2005 10  30.34594  02 58 23.60   -00 58 44.9   23.2  05SD278   705  cr7075      
2005 11  01.33940  02 58 14.39   -00 59 34.5   23.4  05SD278   705  cr7075      
2005 11  01.34023  02 58 14.38   -00 59 34.3   22.5V 05SD278   705  cr7075      
2005 11  03.36032  02 58 04.99   -01 00 22.4   22.5V 05SD278   705  cr7075      
2005 11  03.36364  02 58 05.00   -01 00 22.4   23.7  05SD278   705  cr7075      
2005 11  06.34683  02 57 51.04   -01 01 30.5   22.7V 05SD278   705  cr7075      
2005 11  06.35015  02 57 51.04   -01 01 30.5   23.9  05SD278   705  cr7075      
2005 11  22.35533  02 56 36.74   -01 06 20.9   22.7V 05SD278   705  cr7075      
2005 11  22.35865  02 56 36.73   -01 06 21.0   23.9  05SD278   705  cr7075      
2005 11  26.34539  02 56 18.90   -01 07 11.7   22.5V 05SD278   705  cr7075      
2005 11  26.34871  02 56 18.90   -01 07 11.7   23.7  05SD278   705  cr7075      
2006 09  16.44750  03 07 06.63   -00 18 51.7   22.5V 05SD278   705  cs2985      
2006 09  16.44833  03 07 06.62   -00 18 51.7   23.3  05SD278   705  cs2985      
2006 09  24.39544  03 06 46.65   -00 23 07.3   21.5R 05SD278   688  Cs2985      
2006 09  24.47140  03 06 46.38   -00 23 08.0         05SD278   688  Cs2985      
2006 09  27.44407  03 06 37.68   -00 24 44.0   22.5V 05SD278   705  cs4095      
2006 09  27.44739  03 06 37.66   -00 24 44.2   23.5  05SD278   705  cs4095      
2006 09  29.45963  03 06 31.42   -00 25 48.5   22.6V 05SD278   705  cs4095      
2006 09  29.46046  03 06 31.41   -00 25 48.5   23.6  05SD278   705  cs4095      
2006 10  01.38334  03 06 25.20   -00 26 49.8   22.6V 05SD278   705  cs2985      
2006 10  01.38666  03 06 25.18   -00 26 50.1   23.5  05SD278   705  cs2985      
2006 10  03.44775  03 06 18.25   -00 27 55.3   22.7V 05SD278   705  cs2985      
2006 10  03.45107  03 06 18.22   -00 27 55.5   23.7  05SD278   705  cs2985      
2006 10  11.44242  03 05 48.98   -00 32 04.0   22.7V 05SD278   705  cs2985      
2006 10  11.44325  03 05 48.97   -00 32 04.1   23.9  05SD278   705  cs2985      
2006 10  13.45132  03 05 41.08   -00 33 04.8   22.8V 05SD278   705  cs4095      
2006 10  13.45215  03 05 41.08   -00 33 04.9   24.2  05SD278   705  cs4095      
2006 10  21.45582  03 05 07.78   -00 36 58.3   22.7V 05SD278   705  cs4095      
2006 10  21.45914  03 05 07.77   -00 36 58.4   23.6  05SD278   705  cs4095      
2006 10  23.36313  03 04 59.47   -00 37 51.3   22.6V 05SD278   705  cs4095      
2006 10  23.36645  03 04 59.45   -00 37 51.5   23.8  05SD278   705  cs4095      
2006 10  27.45180  03 04 41.27   -00 39 41.1   22.5V 05SD278   705  cs6506      
2006 10  27.45263  03 04 41.27   -00 39 41.1   23.7  05SD278   705  cs6506      
2006 10  29.35721  03 04 32.64   -00 40 30.3   22.3V 05SD278   705  cs6506      
2006 10  29.36053  03 04 32.63   -00 40 30.4   23.2  05SD278   705  cs6506      
2006 11  01.37152  03 04 18.85   -00 41 45.1   22.7V 05SD278   705  cs6506      
2006 11  01.37484  03 04 18.82   -00 41 45.3   23.6  05SD278   705  cs6506      
2006 11  14.37692  03 03 18.12   -00 46 24.2   22.5V 05SD278   705  ct2253      
2006 11  14.37775  03 03 18.14   -00 46 24.3   23.5  05SD278   705  ct2253      
2006 11  17.36312  03 03 04.19   -00 47 16.9   22.4V 05SD278   705  ct2253      
2006 11  17.36644  03 03 04.18   -00 47 16.9   23.4  05SD278   705  ct2253      
2006 11  18.252658 03 03 00.08   -00 47 31.8   21.6V 05SD278   645  C~2JxD      
2006 11  18.253488 03 03 00.08   -00 47 31.7   21.2V 05SD278   645  C~2JxD      
2006 11  18.255976 03 03 00.07   -00 47 31.7   22.1V 05SD278   645  C~2JxD      
2006 11  20.35723  03 02 50.33   -00 48 05.0   22.2V 05SD278   705  ct2253      
2006 11  20.35806  03 02 50.32   -00 48 05.0   23.1  05SD278   705  ct2253      
2006 11  23.36197  03 02 36.58   -00 48 48.4   22.5V 05SD278   705  ct2253      
2006 11  23.36529  03 02 36.58   -00 48 48.6   23.4  05SD278   705  ct2253      
2006 11  25.35830  03 02 27.55   -00 49 14.6   22.9V 05SD278   705  ct2253      
2006 11  25.35913  03 02 27.57   -00 49 14.4   24.2  05SD278   705  ct2253      
2007 09  15.40502  03 13 06.70   -00 00 45.1   22.3V 05SD278   705  Cz2938      
2007 09  15.40834  03 13 06.70   -00 00 45.2   23.0  05SD278   705  Cz2938      
2007 09  18.44089  03 13 00.30   -00 02 20.4         05SD278   675  Cy6768      
2007 09  18.46906  03 13 00.24   -00 02 21.3         05SD278   675  Cy6768      
2007 09  22.43791  03 12 50.74   -00 04 26.6   22.7V 05SD278   705  Cz2938      
2007 09  22.44123  03 12 50.72   -00 04 26.8   23.6  05SD278   705  Cz2938      
2007 10  08.45690  03 12 00.92   -00 12 50.1   22.4V 05SD278   705  Cz2938      
2007 10  08.46022  03 12 00.90   -00 12 50.4   23.4  05SD278   705  Cz2938      
2007 10  12.45442  03 11 45.96   -00 14 51.6   23.0V 05SD278   705  Cz2938      
2007 10  12.45525  03 11 45.96   -00 14 51.9   24.3  05SD278   705  Cz2938      
2007 10  23.45735  03 11 00.78   -00 20 09.0   22.2V 05SD278   705  Cz2938      
2007 10  23.45818  03 11 00.77   -00 20 08.5   23.1  05SD278   705  Cz2938      
2007 11  04.36107  03 10 07.21   -00 25 10.5   22.5V 05SD278   705  Cz2938      
2007 11  04.36439  03 10 07.20   -00 25 10.6   23.4  05SD278   705  Cz2938      
2007 11  05.36457  03 10 02.56   -00 25 33.6   22.8V 05SD278   705  Cz2938      
2007 11  05.36540  03 10 02.55   -00 25 33.5   23.8  05SD278   705  Cz2938      
2007 11  09.31539  03 09 44.11   -00 27 00.2         05SD278   695  Cy4037      
2007 11  09.36430  03 09 43.87   -00 27 01.2         05SD278   695  Cy4037      
2007 11  12.35817  03 09 29.85   -00 28 01.4   22.6V 05SD278   705  Cz2938      
2007 11  12.36149  03 09 29.84   -00 28 01.3   23.5  05SD278   705  Cz2938      
2008 09  24.51213  03 18 39.17   +00 11 28.8   23.0R 05SD278   250  S~06Av      
2008 09  24.51838  03 18 39.16   +00 11 28.6         05SD278   250  S~06Av      
2008 09  24.52532  03 18 39.14   +00 11 28.4         05SD278   250  S~06Av      
2008 09  24.53157  03 18 39.12   +00 11 28.2         05SD278   250  S~06Av      
2008 10  24.35622  03 16 51.92   -00 03 19.7   21.5r 05SD278   695  C~0gMI      
2008 10  24.47547  03 16 51.41   -00 03 23.0   21.6r 05SD278   695  C~0gMI      

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     0.00       0.00     0.08
  2   0.0000     -0.17    -0.13      -0.05     0.05
  3   0.0000     -0.38    -0.20      -0.20    -0.05
  4   0.0056   -108.23    -0.21     -36.56     0.09
  5   0.0056   -108.23    -0.16     -36.56     0.10
  6   0.0056   -108.06     0.15     -36.51     0.20
  7   1.0076   5376.03     0.03    -678.99     0.14
  8   1.0077   5376.17     0.35    -679.04     0.15
  9   1.0130   5269.91    -0.37    -712.54     0.09
 10   1.0130   5270.05    -0.18    -712.59     0.06
 11   1.0296   4921.34     0.05    -807.23     0.13
 12   1.0296   4921.34     0.25    -807.23     0.18
 13   1.0814   3663.68     0.14   -1009.80     0.09
 14   1.0814   3663.42    -0.06   -1009.62     0.28
 15   1.0843   3585.45     0.21   -1016.91     0.05
 16   1.0844   3585.45     0.45   -1016.91     0.07
 17   1.0896   3447.13     0.20   -1028.02     0.14
 18   1.0896   3446.55    -0.13   -1028.36    -0.18
 19   1.0926   3367.89    -0.07   -1033.86    -0.12
 20   1.0926   3367.86     0.14   -1033.96    -0.20
 21   1.0951   3301.20    -0.08   -1038.31    -0.22
 22   1.0951   3301.20     0.17   -1038.31    -0.21
 23   1.1032   3084.05    -0.10   -1049.52    -0.04
 24   1.1032   3083.94     0.04   -1049.38     0.11
 25   1.1087   2937.25    -0.06   -1055.13    -0.25
 26   1.1087   2937.17    -0.08   -1054.90    -0.01
 27   1.1142   2788.36    -0.01   -1058.41     0.09
 28   1.1142   2788.51     0.38   -1058.45     0.05
 29   1.1224   2568.31     0.04   -1060.42     0.01
 30   1.1224   2568.31     0.29   -1060.42     0.01
 31   1.1662   1418.13    -0.14   -1002.26     0.05
 32   1.1662   1417.96    -0.09   -1002.31    -0.03
 33   1.1771   1147.67    -0.10    -970.26     0.12
 34   1.1772   1147.67     0.12    -970.26     0.09
 35   1.9824  11296.55     0.05   -1129.14    -0.03
 36   1.9824  11296.41    -0.05   -1129.10     0.04
 37   2.0041  10932.77     0.15   -1282.81    -1.28
 38   2.0043  10928.68 (  -0.05)  -1282.26 (   0.60)
 39   2.0125  10774.91    -0.05   -1334.55    -0.03
 40   2.0125  10774.57    -0.22   -1334.65    -0.07
 41   2.0180  10665.66    -0.05   -1367.81    -0.01
 42   2.0180  10665.52    -0.15   -1367.77     0.05
 43   2.0232  10557.95    -0.04   -1398.20     0.03
 44   2.0233  10557.58    -0.22   -1398.39    -0.11
 45   2.0289  10438.52    -0.03   -1429.28     0.03
 46   2.0289  10438.03    -0.32   -1429.34     0.02
 47   2.0508   9943.77     0.05   -1534.28     0.00
 48   2.0508   9943.60    -0.07   -1534.33    -0.04
 49   2.0563   9812.17     0.06   -1556.58     0.06
 50   2.0563   9812.14     0.09   -1556.67    -0.03
 51   2.0782   9264.39     0.11   -1628.82    -0.07
 52   2.0782   9264.22     0.17   -1628.87    -0.10
 53   2.0834   9129.30     0.00   -1641.81     0.01
 54   2.0834   9128.96    -0.11   -1641.91    -0.07
 55   2.0946   8835.37    -0.03   -1664.29    -0.02
 56   2.0946   8835.37     0.03   -1664.29    -0.02
 57   2.0998   8696.87    -0.13   -1672.21    -0.03
 58   2.0998   8696.69    -0.06   -1672.26    -0.07
 59   2.1081   8476.72     0.21   -1681.23     0.03
 60   2.1081   8476.23    -0.03   -1681.29    -0.01
 61   2.1437   7522.61    -0.18   -1672.97     0.14
 62   2.1437   7522.87     0.14   -1673.15    -0.05
 63   2.1519   7307.22    -0.15   -1660.28     0.13
 64   2.1519   7307.08    -0.05   -1660.24     0.16
 65   2.1543   7243.87     0.02   -1655.92    -0.03
 66   2.1543   7243.90     0.11   -1655.82     0.06
 67   2.1543   7243.76     0.15   -1655.78     0.10
 68   2.1601   7094.24    -0.10   -1643.52     0.15
 69   2.1601   7094.09    -0.19   -1643.48     0.19
 70   2.1683   6884.26    -0.06   -1622.79     0.10
 71   2.1683   6884.20     0.12   -1622.98    -0.11
 72   2.1738   6747.06    -0.20   -1606.97    -0.06
 73   2.1738   6747.41     0.20   -1606.87     0.04
 74   2.9788  16800.07    -0.06   -1722.25     0.04
 75   2.9788  16800.04     0.04   -1722.34     0.02
 76   2.9871  16679.05     0.10   -1784.38    -0.09
 77   2.9872  16677.91     0.17   -1784.96    -0.13
 78   2.9981  16503.18     0.11   -1861.72    -0.06
 79   2.9981  16502.84    -0.08   -1861.82    -0.10
 80   3.0419  15633.74     0.02   -2117.18    -0.16
 81   3.0419  15633.36    -0.15   -2117.38    -0.31
 82   3.0529  15381.75     0.02   -2165.47    -0.01
 83   3.0529  15381.66    -0.02   -2165.76    -0.28
 84   3.0830  14635.98     0.02   -2263.93    -0.30
 85   3.0830  14635.99     0.09   -2263.40     0.23
 86   3.1156  13774.85    -0.03   -2309.10    -0.03
 87   3.1156  13774.68     0.04   -2309.15    -0.08
 88   3.1183  13701.05     0.01   -2310.08    -0.16
 89   3.1183  13700.94    -0.04   -2309.94    -0.02
 90   3.1292  13409.81    -0.32   -2309.17    -0.37
 91   3.1293  13406.06    -0.41   -2309.03    -0.31
 92   3.1375  13186.47     0.00   -2302.98    -0.01
 93   3.1375  13186.36     0.14   -2302.84     0.12
 94   4.0058  21821.08     0.03   -2530.55     0.39
 95   4.0058  21820.88     0.12   -2530.70     0.36
 96   4.0058  21820.53     0.10   -2530.80     0.38
 97   4.0059  21820.18     0.05   -2530.90     0.39
 98   4.0875  20000.95    -0.08   -2893.81     0.24
 99   4.0878  19992.59     0.11   -2894.65     0.05

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.

05SD278    quality flag:2

Type:       SCATNEAR    5:2EEE    5:2EEE

axisobj        56.240    56.256    56.224
ecceobj         0.291     0.291     0.290
incobj         17.837    17.837    17.837
qmin           39.440    39.442    37.444
qmax           72.584    72.619    74.421
amean          55.461    55.462    55.462
amin           54.821    54.836    54.870
amax           56.240    56.256    56.224
emean           0.207     0.225     0.271
emin            0.124     0.167     0.235
emax            0.291     0.291     0.325
imean          19.819    19.235    17.153
imin           16.723    16.723    14.214
imax           22.012    21.049    18.715
excite_mean     0.400     0.401     0.402
fracstop        1.000     1.000     1.000
cjmean          3.038     3.038     3.038

libcent 0      -180.0     175.0     178.5
libamp  0      -180.0     150.3      78.4
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       210.9     264.5     162.9
kozaiamp         65.6      64.0      55.8