Orbit Fit and Astrometric record for 01QX322

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: 01QX322   
# Created Tue Oct 24 01:37:14 2017
# Orbit generated from Bernstein formalism
# Fitting   66 observations of   69
# Arc:  16.10y
# First observation: 2001/08/19
#  Last observation: 2017/09/23
Preliminary a, adot, b, bdot, g, gdot:
   0.000332   0.027974  -0.000072  -0.005558   0.025845   0.000000
# Chi-squared of fit:   790.48 DOF:  126 RMS:  0.61
# Min/Max residuals:    -2.00    1.69
# Exact a, adot, b, bdot, g, gdot:
  4.279929E-06  2.923600E-02 -3.322471E-06 -5.881303E-03  2.625293E-02  6.934432E-03
# Covariance matrix:
  4.6086E-14 -2.7912E-15  8.1062E-16  2.1044E-16  2.2192E-14 -2.0169E-15
 -2.7912E-15  1.2169E-14  2.3379E-15 -1.9097E-15  2.3411E-14  2.9631E-14
  8.1062E-16  2.3379E-15  3.7383E-14 -4.3512E-15  6.1738E-15  5.9618E-15
  2.1044E-16 -1.9097E-15 -4.3512E-15  1.4892E-15 -3.1566E-15 -5.3670E-15
  2.2192E-14  2.3411E-14  6.1738E-15 -3.1566E-15  9.2248E-14  5.1677E-14
 -2.0169E-15  2.9631E-14  5.9618E-15 -5.3670E-15  5.1677E-14  8.2564E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   27.107599    8.901710    0.692529    0.336716   -0.658091  2452140.540573
# Heliocentric elements and errors
Epoch:              2452140.5000  =  2001/08/19
Mean Anomaly:           19.11379 +/-     0.002
Argument of Peri:       65.68096 +/-     0.004
Long of Asc Node:      255.03184 +/-     0.000
Inclination:            28.50209 +/-     0.000
Eccentricity:         0.38896850 +/-    0.0000
Semi-Major Axis:     58.33223408 +/-    0.0040
Time of Perihelion: 2443500.6631 +/-       0.6
Perihelion:          35.64283234 +/-    0.0030
Aphelion:            81.02163582 +/-    0.0058
Period (y)              445.5240 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.33861172 +/-    0.0004
Ecliptic Y            4.68262343 +/-    0.0001
Ecliptic Z           17.35656942 +/-    0.0002
Ecliptic XDOT         0.00043167 +/-    0.0000
Ecliptic YDOT         0.00315643 +/-    0.0000
Ecliptic ZDOT        -0.00021624 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.75974353 +/-    0.0004
Geocenter to KBO     38.09099003 +/-    0.0004
# Hcoef:  5.83

The following table shows the complete astrometric record for 01QX322. 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 (01QX322) followed by the observatory code and reference code for the source of the astrometry.

2001 08  19.03983  23 45 43.05   +28 13 10.8   22.0  01QX322   950  Ce0367      
2001 08  19.07472  23 45 42.84   +28 13 09.5   22.2  01QX322   950  Ce0367      
2001 08  19.10871  23 45 42.66   +28 13 09.8   22.0  01QX322   950  Ce0367      
2001 08  19.14417  23 45 42.49   +28 13 09.8   22.0  01QX322   950  Ce0367      
2001 08  19.21794  23 45 42.16   +28 13 10.1   22.1  01QX322   950  Ce0367      
2001 08  20.08731  23 45 38.39   +28 13 09.0   22.2  01QX322   950  Ce0367      
2001 08  20.09524  23 45 38.37   +28 13 09.3   22.4  01QX322   950  Ce0367      
2001 08  20.10318  23 45 38.34   +28 13 09.5         01QX322   950  Ce0367      
2001 08  20.11114  23 45 38.24   +28 13 08.7   22.0  01QX322   950  Ce0367      
2001 08  20.15216  23 45 38.04   +28 13 08.6   22.4  01QX322   950  Ce0367      
2001 08  22.08518  23 45 29.45   +28 13 03.1   21.8  01QX322   950  Ce0367      
2001 08  22.09308  23 45 29.41   +28 13 03.0   21.8  01QX322   950  Ce0367      
2001 08  22.18019  23 45 28.97   +28 13 02.9   21.8  01QX322   950  Ce0367      
2001 08  22.21408  23 45 28.84   +28 13 03.0   22.1  01QX322   950  Ce0367      
2001 08  23.04174  23 45 25.05   +28 12 58.6   22.2  01QX322   950  Ce0367      
2001 08  23.05846  23 45 25.00   +28 12 58.4         01QX322   950  Ce0367      
2001 08  23.08449  23 45 24.89   +28 12 58.7   22.2  01QX322   950  Ce0367      
2001 08  23.13417  23 45 24.64   +28 12 58.6   22.1  01QX322   950  Ce0367      
2001 08  23.19114  23 45 24.34   +28 12 57.7   22.4  01QX322   950  Ce0367      
2001 08  23.22455  23 45 24.22   +28 12 58.1   22.0  01QX322   950  Ce0367      
2001 08  24.10178  23 45 20.20   +28 12 53.4   22.2  01QX322   950  Ce0367      
2001 08  24.10972  23 45 20.16   +28 12 53.5   21.8  01QX322   950  Ce0367      
2001 08  24.11773  23 45 20.13   +28 12 53.6   21.9  01QX322   950  Ce0367      
2001 08  25.04090  23 45 15.75   +28 12 46.7   22.0R 01QX322   950  Ci2957      
2001 08  25.07429  23 45 15.59   +28 12 46.6         01QX322   950  Ci2957      
2001 08  25.11609  23 45 15.40   +28 12 46.4         01QX322   950  Ci2957      
2001 08  26.05472  23 45 11.06   +28 12 39.8   22.1  01QX322   950  Ce0367      
2001 08  26.07144  23 45 10.99   +28 12 40.0   22.1  01QX322   950  Ce0367      
2001 08  26.08814  23 45 10.90   +28 12 39.8   22.1  01QX322   950  Ce0367      
2001 12  10.21190  23 38 54.28   +27 02 24.4   22.3R 01QX322   568  Ce3754      
2001 12  10.29339  23 38 54.32   +27 02 20.8   22.2R 01QX322   568  Ce3754      
2001 12  20.23926  23 39 05.55   +26 55 30.4   22.4R 01QX322   568  Ce3754      
2001 12  20.31399  23 39 05.66   +26 55 28.0   21.7R 01QX322   568  Ce3754      
2001 12  21.21013  23 39 07.23   +26 54 53.7   22.2R 01QX322   568  Ce3754      
2002 06  15.41052  23 54 47.35   +28 09 11.0   22.3R 01QX322   695  Cf7165      
2002 06  15.44037  23 54 47.41   +28 09 12.6   22.3R 01QX322   695  Cf7165      
2002 06  16.44561  23 54 49.04   +28 10 01.6   22.3R 01QX322   695  Cf7165      
2002 10  09.26715  23 48 57.86   +28 20 18.6   22.1R 01QX322   290  Ch3951      
2002 10  09.31456  23 48 57.61   +28 20 16.6   22.4R 01QX322   290  Ch3951      
2002 10  11.12705  23 48 48.92   +28 19 00.2   22.4R 01QX322   290  Ch3951      
2002 10  11.17360  23 48 48.66   +28 18 58.4         01QX322   290  Ch3951      
2003 09  29.203806 23 57 16.88   +28 51 48.9   22.1V 01QX322   645  C~1RHM      
2003 09  29.204635 23 57 16.88   +28 51 48.8   21.5V 01QX322   645  C~1RHM      
2003 09  29.207123 23 57 16.87   +28 51 48.8   22.9V 01QX322   645  C~1RHM      
2006 12  24.09737  00 15 08.28   +28 51 55.1   22.7R 01QX322   688  Ct1847      
2006 12  24.18493  00 15 08.45   +28 51 51.8         01QX322   688  Ct1847      
2008 10  24.18107  00 31 38.26   +30 13 47.4   22.9r 01QX322   695  C~0gLv      
2008 10  24.28752  00 31 37.76   +30 13 42.8   22.5r 01QX322   695  C~0gLv      
2009 10  16.417581 00 39 24.58   +30 33 52.3         01QX322   645  C~1RHM      
2009 10  16.418410 00 39 24.58   +30 33 52.3         01QX322   645  C~1RHM      
2009 10  16.420898 00 39 24.57   +30 33 52.2         01QX322   645  C~1RHM      
2009 10  18.268459 00 39 15.40   +30 32 42.8         01QX322   645  C~1RHM      
2009 10  18.269288 00 39 15.39   +30 32 42.8         01QX322   645  C~1RHM      
2009 10  18.271776 00 39 15.38   +30 32 42.8         01QX322   645  C~1RHM      
2009 11  16.257396 00 37 11.57   +30 11 29.5         01QX322   645  C~1RHM      
2009 11  16.258225 00 37 11.56   +30 11 29.5         01QX322   645  C~1RHM      
2009 11  16.260713 00 37 11.56   +30 11 29.4         01QX322   645  C~1RHM      
2010 01  11.88316  00 36 36.18   +29 31 55.1         01QX322   250  S~0M3O      
2010 01  11.88554  00 36 36.18   +29 31 55.1         01QX322   250  S~0M3O      
2010 01  11.93574  00 36 36.30   +29 31 53.6         01QX322   250  S~0M3O      
2010 01  11.93813  00 36 36.31   +29 31 53.6         01QX322   250  S~0M3O      
2010 01  11.94321  00 36 36.31   +29 31 53.8         01QX322   250  S~0M3O      
2010 01  11.94876  00 36 36.33   +29 31 53.6         01QX322   250  S~0M3O      
2010 01  12.00416  00 36 36.47   +29 31 52.0         01QX322   250  S~0M3O      
2010 01  12.00971  00 36 36.48   +29 31 51.9         01QX322   250  S~0M3O      
2010 10  27.80994  00 45 34.24   +30 39 49.2   21.8V 01QX322   493  C~0PK7      
2017 09  23.36485  01 35 26.334  +31 45 10.20  23.0R 01QX322   G37              
2017 09  23.42010  01 35 26.112  +31 45 09.62        01QX322   G37              
2017 09  23.45149  01 35 25.954  +31 45 09.15        01QX322   G37              

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 (   2.75)      0.00 (  -0.05)
  2   0.0001     -3.06     1.52       0.07    -0.86
  3   0.0002     -5.06     1.33       1.40    -0.40
  4   0.0003     -7.07     1.19       2.41    -0.30
  5   0.0005    -10.84     1.34       4.62     0.06
  6   0.0029    -55.93     1.69      25.86     0.04
  7   0.0029    -56.03 (   2.01)     26.25 (   0.23)
  8   0.0029    -56.30 (   2.18)     26.61 (   0.39)
  9   0.0029    -57.84     1.07      26.48     0.06
 10   0.0030    -60.25     0.88      27.57     0.13
 11   0.0083   -164.30     1.12      73.32     0.00
 12   0.0084   -164.82     1.05      73.46    -0.04
 13   0.0086   -170.07     0.69      75.97     0.40
 14   0.0087   -171.56     1.11      76.83     0.46
 15   0.0110   -218.35     0.11      95.26    -0.01
 16   0.0110   -219.03     0.38      95.37    -0.28
 17   0.0111   -220.20     0.70      96.29     0.03
 18   0.0112   -223.20     0.54      97.68     0.26
 19   0.0114   -227.15    -0.15      98.64    -0.09
 20   0.0115   -228.39     0.53      99.71     0.21
 21   0.0139   -278.03     0.40     119.23     0.17
 22   0.0139   -278.46     0.43     119.56     0.31
 23   0.0139   -278.77     0.59     119.83     0.40
 24   0.0164   -333.65    -1.29     139.52    -0.04
 25   0.0165   -335.58    -1.26     140.37     0.07
 26   0.0166   -337.92    -1.12     141.32     0.09
 27   0.0192   -392.19    -0.58     161.05    -0.11
 28   0.0193   -392.93    -0.32     161.64     0.11
 29   0.0193   -394.08    -0.47     162.00     0.11
 30   0.3098  -6767.74    -0.50   -1331.44    -0.35
 31   0.3101  -6768.92    -0.48   -1334.88    -0.35
 32   0.3373  -6823.61    -0.57   -1768.72    -0.17
 33   0.3375  -6823.40    -0.46   -1771.53     0.32
 34   0.3400  -6820.44    -0.60   -1811.66    -0.03
 35   0.8224   6368.25    -1.75   -3366.09     0.11
 36   0.8225   6369.65    -1.57   -3364.98     0.15
 37   0.8252   6410.19    -2.00   -3329.96     0.06
 38   1.1396   2496.75    -0.62    -756.50     0.10
 39   1.1397   2492.91    -0.81    -756.84     0.17
 40   1.1447   2356.23    -0.33    -774.94    -0.23
 41   1.1448   2352.36    -0.65    -775.05     0.11
 42   2.1113   9246.37    -1.11   -1893.28    -0.05
 43   2.1113   9246.32    -1.09   -1893.37    -0.14
 44   2.1113   9246.20    -1.02   -1893.31    -0.09
 45   5.3472  22190.09    -0.85   -7653.44     0.51
 46   5.3474  22190.88     0.35   -7657.38     0.17
 47   7.1818  36300.49    -0.23   -7960.86    -0.04
 48   7.1821  36292.56    -0.19   -7962.86    -0.16
 49   8.1598  42607.37    -0.29   -8974.96    -0.61
 50   8.1598  42607.37    -0.23   -8974.96    -0.60
 51   8.1598  42607.21    -0.20   -8975.01    -0.61
 52   8.1649  42466.46    -0.09   -8999.94    -0.53
 53   8.1649  42466.33    -0.16   -8999.90    -0.47
 54   8.1649  42466.21    -0.09   -8999.85    -0.39
 55   8.2443  40447.10    -0.07   -9652.27    -0.35
 56   8.2443  40446.97    -0.14   -9652.22    -0.28
 57   8.2443  40446.94    -0.03   -9652.32    -0.30
 58   8.3993  39155.25     0.53  -11757.83     0.10
 59   8.3993  39155.25     0.49  -11757.83     0.19
 60   8.3994  39156.25     0.49  -11759.83     0.12
 61   8.3994  39156.37     0.57  -11759.87     0.17
 62   8.3995  39156.45     0.55  -11759.68     0.56
 63   8.3995  39156.63     0.62  -11759.97     0.48
 64   8.3996  39157.84     0.74  -11762.15     0.43
 65   8.3996  39157.93     0.72  -11762.30     0.50
 66   9.1903  47456.80     0.02  -10286.58     0.19
 67  16.0967  89887.60    -0.38  -17850.66     0.19
 68  16.0969  89884.15     0.08  -17850.55     0.21
 69  16.0970  89881.68    -0.17  -17850.53     0.18

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.

01QX322    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        58.816    58.828    58.804
ecceobj         0.394     0.394     0.394
incobj         28.507    28.507    28.507
qmin           34.740    34.732    34.728
qmax           82.701    82.749    82.714
amean          58.189    58.201    58.175
amin           57.530    57.574    57.511
amax           59.019    59.061    59.039
emean           0.382     0.382     0.382
emin            0.360     0.361     0.360
emax            0.402     0.402     0.402
imean          30.169    30.163    30.176
imin           29.555    29.560    29.553
imax           30.969    30.961    30.990
excite_mean     0.631     0.632     0.631
fracstop        1.000     1.000     1.000
cjmean          2.737     2.738     2.737

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       166.6     166.5     166.4
kozaiamp        179.9     180.0     179.9