Orbit Fit and Astrometric record for 99CM158

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: 99CM158   
# Created Tue Nov 30 02:08:35 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     51 observations of     51
# Arc:  17.08y
# First observation: 1999/02/11
#  Last observation: 2016/03/13
# Chi-squared of fit:    67.07 DOF:     96 RMS:  0.20
# Min/Max residuals:    -0.70    0.94
# Exact a, adot, b, bdot, g, gdot:
  2.166589E-05  4.674868E-02 -3.182681E-06 -7.636911E-03  3.595330E-02  3.842319E-03
# Covariance matrix:
  1.4260E-13 -2.1239E-14 -3.5802E-15  2.3201E-15  1.2361E-14 -1.6579E-14
 -2.1239E-14  1.3135E-14  3.1474E-15 -2.0677E-15  1.2726E-14  1.4412E-14
 -3.5802E-15  3.1474E-15  1.1617E-13 -8.2135E-15  2.8670E-15  3.6467E-15
  2.3201E-15 -2.0677E-15 -8.2135E-15  9.9807E-16 -1.9503E-15 -2.3933E-15
  1.2361E-14  1.2726E-14  2.8670E-15 -1.9503E-15  6.7731E-14  1.2740E-14
 -1.6579E-14  1.4412E-14  3.6467E-15 -2.3933E-15  1.2740E-14  1.6712E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.474836  162.452725    0.336646   -0.007980   -0.934743  2451221.026423
# Heliocentric elements and errors
Epoch:              2451220.5000  =  1999/02/11
Mean Anomaly:           10.40461 +/-     0.001
Argument of Peri:      163.94103 +/-     0.002
Long of Asc Node:      338.97198 +/-     0.000
Inclination:             9.30765 +/-     0.000
Eccentricity:         0.27532944 +/-    0.0000
Semi-Major Axis:     39.20139329 +/-    0.0016
Time of Perihelion: 2448629.4596 +/-       0.3
Perihelion:          28.40809574 +/-    0.0015
Aphelion:            49.99469084 +/-    0.0023
Period (y)              245.4485 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.30040485 +/-    0.0002
Ecliptic Y            8.98769831 +/-    0.0001
Ecliptic Z           -0.23058025 +/-    0.0000
Ecliptic XDOT        -0.00134936 +/-    0.0000
Ecliptic YDOT        -0.00329850 +/-    0.0000
Ecliptic ZDOT        -0.00058396 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.74267994 +/-    0.0002
Geocenter to KBO     27.81384757 +/-    0.0002
# Hcoef:  7.79

The following table shows the complete astrometric record for 99CM158. 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 (99CM158) followed by the observatory code and reference code for the source of the astrometry.

1999 02  11.52568  10 54 33.43   +06 26 56.5   21.9R 99CM158   568  Cb7527      
1999 02  11.60965  10 54 32.91   +06 26 58.9   21.9R 99CM158   568  Cb7527      
1999 03  15.52508  10 51 10.30   +06 45 10.9   21.9R 99CM158   568  Cb7527      
1999 03  15.56242  10 51 10.06   +06 45 12.1   21.9R 99CM158   568  Cb7527      
1999 04  12.38664  10 48 37.02   +06 58 52.8   23.2V 99CM158   568  Cb7527      
1999 04  12.44075  10 48 36.76   +06 58 54.0   23.2V 99CM158   568  Cb7527      
2000 05  05.26157  10 56 27.48   +05 41 31.8         99CM158   568  Cc7487      
2000 05  05.30793  10 56 27.36   +05 41 31.6         99CM158   568  Cc7487      
2001 02  16.42449  11 12 21.78   +03 39 00.3         99CM158   568  Cc7487      
2001 02  16.44631  11 12 21.64   +03 39 01.0         99CM158   568  Cc7487      
2001 02  17.47576  11 12 15.53   +03 39 33.8   21.9  99CM158   568  Cc7487      
2001 02  20.280109 11 11 58.61   +03 41 05.4   21.9V 99CM158   645  C~1SKn      
2001 02  20.280938 11 11 58.61   +03 41 05.4   21.6V 99CM158   645  C~1SKn      
2001 02  20.283459 11 11 58.59   +03 41 05.5   22.7V 99CM158   645  C~1SKn      
2007 02  15.41532  12 05 12.35   -04 38 42.9   22.5R 99CM158   688  Cu2274      
2007 02  15.48968  12 05 12.03   -04 38 40.4         99CM158   688  Cu2274      
2011 04  03.43425  12 34 17.949  -09 22 06.70  22.1G 99CM158   F51  C~2r77      
2011 04  03.44813  12 34 17.864  -09 22 06.19  22.4G 99CM158   F51  C~2r77      
2011 04  03.46395  12 34 17.764  -09 22 05.66  22.4G 99CM158   F51  C~2r77      
2011 04  03.47786  12 34 17.687  -09 22 05.46  22.5G 99CM158   F51  C~2r77      
2012 02  27.47396  12 45 50.661  -10 51 21.06  22.5G 99CM158   F51  C~2r77      
2012 02  27.48873  12 45 50.599  -10 51 20.55  22.2G 99CM158   F51  C~2r77      
2012 02  27.50353  12 45 50.520  -10 51 20.52  22.3G 99CM158   F51  C~2r77      
2012 02  27.51830  12 45 50.441  -10 51 20.14  22.6G 99CM158   F51  C~2r77      
2013 04  08.42859  12 50 09.776  -11 42 40.43  22.6G 99CM158   F51  C~2r77      
2014 02  25.58860  13 02 08.195  -13 09 43.74  22.5G 99CM158   F51  C~2r77      
2014 03  26.15780  12 59 38.76   -12 58 59.0   22.7V 99CM158   W84  C~2J8l      
2014 03  26.22604  12 59 38.34   -12 58 57.0         99CM158   W84  C~2J8l      
2014 03  26.29610  12 59 37.93   -12 58 54.9         99CM158   W84  C~2J8l      
2014 04  28.45699  12 56 22.713  -12 40 17.23  23.1G 99CM158   F51  C~2r77      
2014 05  25.28716  12 54 20.679  -12 25 55.76  22.2G 99CM158   F51  C~2r77      
2014 05  25.29925  12 54 20.649  -12 25 55.32  22.4G 99CM158   F51  C~2r77      
2014 05  25.31135  12 54 20.602  -12 25 54.98  22.3G 99CM158   F51  C~2r77      
2014 05  25.32343  12 54 20.546  -12 25 54.80  22.3G 99CM158   F51  C~2r77      
2014 06  02.27158  12 53 56.286  -12 22 29.51  22.6G 99CM158   F51  C~2r78      
2014 06  02.28369  12 53 56.246  -12 22 29.03  22.9G 99CM158   F51  C~2r78      
2014 06  02.29579  12 53 56.196  -12 22 28.82  22.7G 99CM158   F51  C~2r78      
2014 06  02.30790  12 53 56.183  -12 22 28.47  22.6G 99CM158   F51  C~2r78      
2015 01  26.62602  13 11 24.928  -14 16 00.43  23.1G 99CM158   F51  C~2r78      
2015 03  29.51492  13 07 25.046  -14 04 21.78  22.7G 99CM158   F51  C~2r78      
2015 05  18.37188  13 02 49.124  -13 36 40.02  22.9G 99CM158   F51  C~2r78      
2015 05  19.32229  13 02 45.115  -13 36 10.35  22.3G 99CM158   F51  C~2r78      
2016 02  09.65992  13 18 56.942  -15 20 42.41  23.0G 99CM158   F51  C~2r78      
2016 03  04.55980  13 17 35.141  -15 18 09.41  21.4G 99CM158   F51  C~2r78      
2016 03  05.52312  13 17 30.740  -15 17 54.93  23.8G 99CM158   F51  C~2r78      
2016 03  06.47219  13 17 26.344  -15 17 39.80  23.1G 99CM158   F51  C~2r78      
2016 03  06.48317  13 17 26.279  -15 17 39.72  23.3G 99CM158   F51  C~2r78      
2016 03  06.49413  13 17 26.239  -15 17 39.53  22.8G 99CM158   F51  C~2r78      
2016 03  06.50516  13 17 26.172  -15 17 39.48  23.0G 99CM158   F51  C~2r78      
2016 03  13.26362  13 16 52.90   -15 15 36.1   22.4R 99CM158   G37  C~1pPV      
2016 03  13.31211  13 16 52.67   -15 15 35.2         99CM158   G37  C~1pPV      

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     0.05
     2   0.0002      0.00    -0.34       0.00    -0.21
     3   0.0876      0.00     0.02       0.00     0.00
     4   0.0877      0.00    -0.03       0.00    -0.06
     5   0.1639      0.00     0.51       0.00    -0.02
     6   0.1640      0.00     0.32       0.00    -0.08
     7   1.2286      0.00    -0.31       0.00     0.00
     8   1.2287      0.00    -0.52       0.00    -0.70
     9   2.0148      0.00     0.03       0.00    -0.04
    10   2.0148      0.00    -0.09       0.00    -0.03
    11   2.0177      0.00     0.15       0.00    -0.11
    12   2.0253      0.00     0.01       0.00     0.22
    13   2.0253      0.00     0.09       0.00     0.19
    14   2.0253      0.00     0.02       0.00     0.21
    15   8.0106      0.00     0.08       0.00     0.05
    16   8.0109      0.00     0.70       0.00     0.94
    17  12.1394      0.00     0.00       0.00     0.13
    18  12.1394      0.00     0.01       0.00     0.15
    19  12.1395      0.00    -0.02       0.00     0.13
    20  12.1395      0.00     0.11       0.00    -0.17
    21  13.0430      0.00     0.02       0.00    -0.09
    22  13.0430      0.00     0.16       0.00     0.14
    23  13.0431      0.00     0.06       0.00    -0.11
    24  13.0431      0.00    -0.05       0.00    -0.01
    25  14.1544      0.00    -0.01       0.00     0.09
    26  15.0392      0.00     0.06       0.00     0.26
    27  15.1174      0.00     0.04       0.00    -0.06
    28  15.1176      0.00    -0.12       0.00    -0.08
    29  15.1178      0.00     0.05       0.00    -0.08
    30  15.2086      0.00    -0.06       0.00     0.11
    31  15.2820      0.00    -0.10       0.00     0.02
    32  15.2821      0.00     0.09       0.00     0.12
    33  15.2821      0.00     0.03       0.00     0.13
    34  15.2821      0.00    -0.16       0.00    -0.03
    35  15.3039      0.00     0.04       0.00    -0.35
    36  15.3039      0.00    -0.05       0.00    -0.16
    37  15.3040      0.00    -0.30       0.00    -0.24
    38  15.3040      0.00     0.00       0.00    -0.18
    39  15.9565      0.00    -0.10       0.00    -0.27
    40  16.1259      0.00     0.01       0.00     0.11
    41  16.2624      0.00    -0.13       0.00    -0.09
    42  16.2650      0.00     0.04       0.00    -0.01
    43  16.9942      0.00     0.08       0.00     0.08
    44  17.0596      0.00    -0.08       0.00     0.06
    45  17.0623      0.00    -0.11       0.00    -0.06
    46  17.0649      0.00    -0.01       0.00     0.08
    47  17.0649      0.00    -0.19       0.00    -0.01
    48  17.0649      0.00    -0.00       0.00     0.00
    49  17.0650      0.00    -0.21       0.00    -0.12
    50  17.0835      0.00     0.05       0.00     0.02
    51  17.0836      0.00     0.41       0.00    -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.

99CM158    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.305    39.305    39.305
ecceobj         0.277     0.277     0.277
incobj          9.299     9.299     9.299
qmin           27.867    27.914    27.727
qmax           51.846    51.800    52.028
amean          39.455    39.456    39.456
amin           38.890    38.900    38.916
amax           40.133    40.098    40.115
emean           0.280     0.280     0.281
emin            0.262     0.268     0.265
emax            0.294     0.293     0.298
imean          10.122    10.030     9.939
imin            9.552     9.491     9.224
imax           10.769    10.579    10.601
excite_mean     0.330     0.330     0.330
fracstop        1.000     1.000     1.000
cjmean          2.926     2.927     2.927

libcent 0       180.2     179.8     180.1
libamp  0       122.5     123.2     122.5
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       202.2     193.2     197.6
kozaiamp        180.0     180.0     179.9