Orbit Fit and Astrometric record for 01QR297

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: 01QR297   
# Created Sun Dec  5 02:09:06 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     90 observations of     90
# Arc:  19.97y
# First observation: 2001/08/20
#  Last observation: 2021/08/08
# Chi-squared of fit:   299.78 DOF:    174 RMS:  0.32
# Min/Max residuals:    -0.75    1.40
# Exact a, adot, b, bdot, g, gdot:
  1.570475E-05  2.245254E-02 -7.683835E-07 -2.014970E-03  2.347616E-02 -4.548804E-04
# Covariance matrix:
  1.7336E-13 -2.5990E-14 -4.7427E-15  1.5692E-15  2.0929E-15 -3.9889E-14
 -2.5990E-14  6.6862E-15  1.6372E-15 -5.4211E-16  3.9827E-15  1.3747E-14
 -4.7427E-15  1.6372E-15  1.1959E-13 -8.6121E-15  1.3121E-15  3.7628E-15
  1.5692E-15 -5.4211E-16 -8.6121E-15  7.4516E-16 -4.3988E-16 -1.2460E-15
  2.0929E-15  3.9827E-15  1.3121E-15 -4.3988E-16  6.6963E-14  1.0702E-14
 -3.9889E-14  1.3747E-14  3.7628E-15 -1.2460E-15  1.0702E-14  3.1587E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.420734  -36.608462   -0.060241    0.007318   -1.010814  2452141.615073
# Heliocentric elements and errors
Epoch:              2452142.5000  =  2001/08/21
Mean Anomaly:          307.58644 +/-     0.053
Argument of Peri:      230.31663 +/-     0.056
Long of Asc Node:      148.04628 +/-     0.000
Inclination:             5.14741 +/-     0.000
Eccentricity:         0.02681742 +/-    0.0000
Semi-Major Axis:     44.31038155 +/-    0.0019
Time of Perihelion: 2467827.9817 +/-      17.0
Perihelion:          43.12209122 +/-    0.0021
Aphelion:            45.49867188 +/-    0.0022
Period (y)              294.9622 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.04290897 +/-    0.0004
Ecliptic Y          -25.94978639 +/-    0.0003
Ecliptic Z            0.31275195 +/-    0.0000
Ecliptic XDOT         0.00151168 +/-    0.0000
Ecliptic YDOT         0.00213387 +/-    0.0000
Ecliptic ZDOT        -0.00023516 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.60614532 +/-    0.0003
Geocenter to KBO     42.59644841 +/-    0.0005
# Hcoef:  6.74

The following table shows the complete astrometric record for 01QR297. 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 (01QR297) followed by the observatory code and reference code for the source of the astrometry.

2001 08  20.11433  21 42 19.16   -13 19 28.7   21.6R 01QR297   807  Cd7926      
2001 08  20.19231  21 42 18.80   -13 19 30.6         01QR297   807  Cd7926      
2001 08  21.13579  21 42 14.59   -13 19 53.3   21.6R 01QR297   807  Cd7926      
2001 08  21.20927  21 42 14.27   -13 19 55.0         01QR297   807  Cd7926      
2001 09  12.23737  21 40 40.86   -13 28 17.9   22.5R 01QR297   695  Cd7926      
2001 09  12.28443  21 40 40.66   -13 28 18.7         01QR297   695  Cd7926      
2004 10  11.14657  21 54 25.89   -12 39 57.3   22.9R 01QR297   695  Cl9814      
2004 10  11.23773  21 54 25.69   -12 39 58.0         01QR297   695  Cl9814      
2004 11  10.13073  21 53 50.72   -12 43 41.0   22.4R 01QR297   695  Cl9814      
2004 11  11.10537  21 53 50.93   -12 43 41.5         01QR297   695  Cl9814      
2005 06  07.39615  22 06 33.75   -11 39 24.2   22.6R 01QR297   304  Cn6481      
2005 06  08.35242  22 06 33.06   -11 39 29.0         01QR297   304  Cn6481      
2006 09  24.13786  22 05 29.35   -11 54 55.1   22.4R 01QR297   688  Cs0792      
2006 09  24.23210  22 05 29.01   -11 54 57.7         01QR297   688  Cs0792      
2007 05  07.72531  22 16 06.13   -11 00 09.9   23.4R 01QR297   250  S~06AP      
2007 05  07.73225  22 16 06.15   -11 00 09.8         01QR297   250  S~06AP      
2007 05  07.73920  22 16 06.16   -11 00 09.7         01QR297   250  S~06AP      
2007 05  07.74614  22 16 06.18   -11 00 09.6         01QR297   250  S~06AP      
2010 08  18.50635  22 28 25.497  -10 14 34.08  23.0G 01QR297   F51  C~343g      
2010 08  19.42649  22 28 21.537  -10 14 58.61  23.5G 01QR297   F51  C~343g      
2010 09  17.17291  22 26 17.71   -10 27 26.8   21.8R 01QR297   688  C~0NFN      
2010 09  17.21874  22 26 17.49   -10 27 29.0         01QR297   688  C~0NFN      
2011 08  29.43791  22 32 43.699  -09 57 06.89  22.3G 01QR297   F51  C~343g      
2011 08  29.45208  22 32 43.628  -09 57 07.63  22.2G 01QR297   F51  C~343g      
2011 08  29.46619  22 32 43.575  -09 57 07.64  23.1G 01QR297   F51  C~343g      
2011 08  29.48026  22 32 43.509  -09 57 07.92  22.3G 01QR297   F51  C~343g      
2011 09  06.48182  22 32 08.605  -10 00 41.81  23.0G 01QR297   F51  C~343g      
2012 08  14.48022  22 38 48.484  -09 28 18.03  24.5G 01QR297   F51  C~343g      
2013 08  09.44706  22 44 12.435  -09 03 16.63  22.0G 01QR297   F51  C~343g      
2013 08  09.46130  22 44 12.379  -09 03 16.76  22.9G 01QR297   F51  C~343g      
2013 08  09.47555  22 44 12.318  -09 03 17.10  23.1G 01QR297   F51  C~343g      
2013 08  17.49365  22 43 39.652  -09 06 46.99  22.5G 01QR297   F51  C~343g      
2013 08  18.48409  22 43 35.495  -09 07 13.19  22.1G 01QR297   F51  C~343g      
2013 08  31.41573  22 42 39.872  -09 13 05.35  23.4G 01QR297   F51  C~343g      
2013 08  31.43021  22 42 39.818  -09 13 05.78  22.7G 01QR297   F51  C~343g      
2013 08  31.44468  22 42 39.723  -09 13 05.95  22.9G 01QR297   F51  C~343g      
2013 08  31.45915  22 42 39.671  -09 13 06.53  23.3G 01QR297   F51  C~343g      
2013 10  06.34432  22 40 14.132  -09 28 04.10  21.9G 01QR297   F51  C~343g      
2014 06  26.56127  22 51 12.866  -08 26 31.70  23.0G 01QR297   F51  C~343g      
2014 07  08.52700  22 50 53.194  -08 29 02.58  23.5G 01QR297   F51  C~343g      
2014 07  25.52993  22 50 08.010  -08 34 18.34  22.9G 01QR297   F51  C~343g      
2014 07  25.54204  22 50 07.966  -08 34 18.71  22.9G 01QR297   F51  C~343g      
2014 07  25.55417  22 50 07.930  -08 34 18.73  23.2G 01QR297   F51  C~343g      
2014 07  25.56627  22 50 07.889  -08 34 19.11  23.0G 01QR297   F51  C~343g      
2014 08  22.43052  22 48 21.906  -08 45 55.44  23.9G 01QR297   F51  C~343g      
2014 08  22.44226  22 48 21.850  -08 45 55.44  23.5G 01QR297   F51  C~343g      
2014 08  22.45398  22 48 21.808  -08 45 56.01  22.7G 01QR297   F51  C~343g      
2014 08  22.46566  22 48 21.763  -08 45 56.54  22.8G 01QR297   F51  C~343g      
2014 08  23.48266  22 48 17.421  -08 46 24.16  22.9G 01QR297   F51  C~343g      
2014 09  18.29340  22 46 26.270  -08 58 05.57  23.4G 01QR297   F51  C~343g      
2014 09  18.30500  22 46 26.229  -08 58 05.83  22.5G 01QR297   F51  C~343g      
2014 09  18.36325  22 46 25.971  -08 58 07.16  22.9G 01QR297   F51  C~343g      
2014 09  18.37496  22 46 25.903  -08 58 07.75  23.1G 01QR297   F51  C~343g      
2014 11  10.24071  22 43 53.238  -09 13 32.05  23.8G 01QR297   F51  C~343g      
2014 11  25.24491  22 43 47.160  -09 14 01.29  23.5G 01QR297   F51  C~343g      
2015 07  23.46491  22 55 14.797  -08 10 18.63  23.6G 01QR297   F51  C~343g      
2015 08  21.42510  22 53 28.617  -08 22 08.61  23.0G 01QR297   F51  C~343g      
2015 11  04.29873  22 48 59.715  -08 50 02.56  22.8G 01QR297   F51  C~343g      
2016 07  11.51675  23 00 41.961  -07 43 29.84  23.4G 01QR297   F51  C~343g      
2016 07  11.52879  23 00 41.983  -07 43 29.85  23.3G 01QR297   F51  C~343g      
2016 07  11.54086  23 00 41.951  -07 43 30.12  22.7G 01QR297   F51  C~343g      
2016 07  11.55294  23 00 41.910  -07 43 30.23  22.9G 01QR297   F51  C~343g      
2016 07  14.56033  23 00 35.183  -07 44 20.32  23.3G 01QR297   F51  C~343g      
2016 07  14.57232  23 00 35.173  -07 44 20.25  23.3G 01QR297   F51  C~343g      
2016 07  14.58432  23 00 35.108  -07 44 20.41  22.3G 01QR297   F51  C~343g      
2016 07  14.59629  23 00 35.071  -07 44 20.95  23.1G 01QR297   F51  C~343g      
2016 08  03.51032  22 59 35.925  -07 51 16.85  23.0G 01QR297   F51  C~343g      
2016 08  27.48697  22 58 00.754  -08 01 49.51  22.5G 01QR297   F51  C~343g      
2016 10  25.25882  22 54 17.558  -08 25 08.44  23.1G 01QR297   F51  C~343g      
2016 10  25.26996  22 54 17.523  -08 25 08.67  23.1G 01QR297   F51  C~343g      
2016 10  25.28111  22 54 17.469  -08 25 09.29  23.2G 01QR297   F51  C~343g      
2016 10  25.29230  22 54 17.452  -08 25 09.07  23.0G 01QR297   F51  C~343g      
2017 08  01.52593  23 04 43.066  -07 26 43.53  23.4G 01QR297   F51  C~343g      
2017 08  01.53783  23 04 43.027  -07 26 43.73  22.9G 01QR297   F51  C~343g      
2017 08  01.54969  23 04 42.980  -07 26 44.00  22.8G 01QR297   F51  C~343g      
2017 08  01.56160  23 04 42.936  -07 26 44.16  23.0G 01QR297   F51  C~343g      
2017 08  17.48072  23 03 44.037  -07 33 25.86  23.0G 01QR297   F51  C~343g      
2017 08  17.49178  23 03 43.971  -07 33 25.78  23.1G 01QR297   F51  C~343g      
2017 08  17.50283  23 03 43.931  -07 33 26.16  22.9G 01QR297   F51  C~343g      
2017 09  14.40666  23 01 45.323  -07 46 21.63  22.2G 01QR297   F51  C~343g      
2017 09  14.41865  23 01 45.275  -07 46 22.52  23.1G 01QR297   F51  C~343g      
2017 09  14.43058  23 01 45.245  -07 46 22.73  22.5G 01QR297   F51  C~343g      
2017 09  14.44251  23 01 45.176  -07 46 23.26  22.9G 01QR297   F51  C~343g      
2017 09  15.40076  23 01 41.082  -07 46 49.40  21.9G 01QR297   F51  C~343g      
2017 09  15.41188  23 01 41.014  -07 46 49.69  22.6G 01QR297   F51  C~343g      
2017 09  15.42308  23 01 40.981  -07 46 49.90  22.8G 01QR297   F51  C~343g      
2017 09  15.43418  23 01 40.914  -07 46 50.51  22.7G 01QR297   F51  C~343g      
2021 08  08.338320 23 24 17.441  -05 52 17.58  22.9G 01QR297   G37  C~4xMb      
2021 08  08.383720 23 24 17.276  -05 52 18.47        01QR297   G37  C~4xMb      
2021 08  08.431920 23 24 17.123  -05 52 19.78        01QR297   G37  C~4xMb      

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    -0.08       0.00    -0.15
     2   0.0002      0.00    -0.16       0.00    -0.19
     3   0.0028      0.00    -0.20       0.00    -0.35
     4   0.0030      0.00     0.00       0.00    -0.29
     5   0.0633      0.00     0.10       0.00    -0.45
     6   0.0634      0.00    -0.09       0.00    -0.25
     7   3.1431      0.00    -0.22       0.00    -0.06
     8   3.1434      0.00     0.15       0.00     0.50
     9   3.2252      0.00    -0.20       0.00    -0.08
    10   3.2279      0.00     0.28       0.00    -0.27
    11   3.7982      0.00    -0.39       0.00     0.05
    12   3.8008      0.00    -0.75       0.00     0.09
    13   5.0952      0.00    -0.04       0.00     0.41
    14   5.0955      0.00     0.08       0.00    -0.21
    15   5.7128      0.00     1.01       0.00     0.79
    16   5.7128      0.00     1.08       0.00     0.81
    17   5.7129      0.00     1.00       0.00     0.83
    18   5.7129      0.00     1.07       0.00     0.86
    19   8.9949      0.00    -0.02       0.00    -0.32
    20   8.9974      0.00    -0.08       0.00    -0.55
    21   9.0761      0.00    -0.29       0.00     1.40
    22   9.0763      0.00    -0.74       0.00     0.32
    23  10.0242      0.00    -0.14       0.00    -0.09
    24  10.0242      0.00    -0.26       0.00    -0.45
    25  10.0242      0.00    -0.11       0.00    -0.08
    26  10.0243      0.00    -0.16       0.00     0.02
    27  10.0462      0.00     0.02       0.00     0.06
    28  10.9853      0.00    -0.29       0.00    -0.25
    29  11.9708      0.00    -0.27       0.00    -0.33
    30  11.9708      0.00    -0.25       0.00    -0.10
    31  11.9709      0.00    -0.30       0.00    -0.08
    32  11.9928      0.00    -0.23       0.00    -0.16
    33  11.9955      0.00    -0.30       0.00     0.14
    34  12.0309      0.00     0.02       0.00    -0.06
    35  12.0310      0.00     0.18       0.00    -0.09
    36  12.0310      0.00    -0.28       0.00     0.14
    37  12.0311      0.00    -0.10       0.00    -0.05
    38  12.1293      0.00    -0.06       0.00    -0.11
    39  12.8500      0.00     0.08       0.00    -0.40
    40  12.8827      0.00    -0.23       0.00    -0.31
    41  12.9293      0.00    -0.03       0.00    -0.25
    42  12.9293      0.00    -0.09       0.00    -0.36
    43  12.9293      0.00    -0.04       0.00    -0.12
    44  12.9294      0.00    -0.06       0.00    -0.24
    45  13.0057      0.00    -0.12       0.00    -0.17
    46  13.0057      0.00    -0.20       0.00     0.15
    47  13.0057      0.00    -0.07       0.00    -0.10
    48  13.0058      0.00     0.01       0.00    -0.31
    49  13.0085      0.00    -0.14       0.00    -0.15
    50  13.0792      0.00     0.07       0.00    -0.09
    51  13.0792      0.00     0.19       0.00    -0.04
    52  13.0794      0.00     0.04       0.00     0.14
    53  13.0794      0.00    -0.23       0.00    -0.15
    54  13.2242      0.00     0.11       0.00    -0.17
    55  13.2652      0.00     0.57       0.00     0.30
    56  13.9229      0.00    -0.18       0.00    -0.19
    57  14.0022      0.00     0.22       0.00    -0.01
    58  14.2072      0.00     0.39       0.00     0.63
    59  14.8923      0.00    -0.67       0.00    -0.34
    60  14.8923      0.00     0.06       0.00    -0.15
    61  14.8923      0.00    -0.02       0.00    -0.23
    62  14.8924      0.00    -0.24       0.00    -0.14
    63  14.9006      0.00     0.11       0.00    -0.12
    64  14.9006      0.00     0.40       0.00     0.16
    65  14.9007      0.00    -0.14       0.00     0.21
    66  14.9007      0.00    -0.25       0.00    -0.13
    67  14.9552      0.00    -0.09       0.00     0.01
    68  15.0209      0.00    -0.19       0.00    -0.14
    69  15.1818      0.00     0.38       0.00     0.25
    70  15.1818      0.00     0.28       0.00     0.19
    71  15.1818      0.00    -0.10       0.00    -0.27
    72  15.1819      0.00     0.07       0.00     0.12
    73  15.9491      0.00     0.05       0.00    -0.20
    74  15.9491      0.00     0.08       0.00    -0.13
    75  15.9492      0.00    -0.02       0.00    -0.12
    76  15.9492      0.00    -0.07       0.00    -0.00
    77  15.9928      0.00     0.04       0.00    -0.04
    78  15.9928      0.00    -0.27       0.00     0.34
    79  15.9929      0.00    -0.19       0.00     0.26
    80  16.0692      0.00     0.08       0.00     0.58
    81  16.0693      0.00     0.14       0.00     0.02
    82  16.0693      0.00     0.48       0.00     0.14
    83  16.0693      0.00     0.23       0.00    -0.06
    84  16.0720      0.00     0.40       0.00     0.08
    85  16.0720      0.00     0.11       0.00     0.09
    86  16.0720      0.00     0.35       0.00     0.19
    87  16.0721      0.00     0.07       0.00    -0.12
    88  19.9678      0.00     0.06       0.00     0.00
    89  19.9679      0.00    -0.07       0.00     0.22
    90  19.9680      0.00     0.14       0.00     0.08

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.

01QR297    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.550    44.550    44.550
ecceobj         0.030     0.030     0.030
incobj          5.136     5.136     5.136
qmin           42.260    42.246    42.235
qmax           46.862    46.817    46.881
amean          44.452    44.452    44.452
amin           44.113    44.109    44.113
amax           44.801    44.801    44.801
emean           0.031     0.031     0.031
emin            0.017     0.017     0.017
emax            0.046     0.046     0.046
imean           4.459     4.459     4.459
imin            3.945     3.945     3.945
imax            5.011     5.010     5.011
excite_mean     0.084     0.084     0.084
fracstop        1.000     1.000     1.000
cjmean          3.099     3.099     3.099

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       179.8     179.8     179.8
kozaiamp        179.9     180.0     180.0