Orbit Fit and Astrometric record for 99CL119

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: 99CL119   
# Created Wed Oct 18 01:37:01 2017
# Orbit generated from Bernstein formalism
# Fitting   28 observations of   28
# Arc:  11.91y
# First observation: 1999/02/11
#  Last observation: 2011/01/08
Preliminary a, adot, b, bdot, g, gdot:
  -0.000396   0.018838  -0.000193   0.008099   0.021475   0.000000
# Chi-squared of fit:    74.29 DOF:   50 RMS:  0.29
# Min/Max residuals:    -0.63    0.62
# Exact a, adot, b, bdot, g, gdot:
  1.243038E-05  1.847299E-02  6.179195E-06  7.952324E-03  2.184040E-02 -2.326165E-04
# Covariance matrix:
  1.1607E-13 -4.0516E-14  1.1125E-14 -1.2506E-14 -2.2347E-14 -1.3871E-13
 -4.0516E-14  4.1041E-14 -1.3555E-14  1.5092E-14 -1.6249E-14  1.6747E-13
  1.1125E-14 -1.3555E-14  9.1427E-14 -1.6254E-14  3.4068E-15 -6.0733E-14
 -1.2506E-14  1.5092E-14 -1.6254E-14  9.4904E-15 -3.0978E-15  6.7747E-14
 -2.2347E-14 -1.6249E-14  3.4068E-15 -3.0978E-15  2.1093E-13 -3.4753E-14
 -1.3871E-13  1.6747E-13 -6.0733E-14  6.7747E-14 -3.4753E-14  7.5172E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.594155  126.177740   -0.277734    0.009673   -0.953815  2451220.795213
# Heliocentric elements and errors
Epoch:              2451220.5000  =  1999/02/11
Mean Anomaly:          289.62516 +/-     1.267
Argument of Peri:       72.19360 +/-     1.278
Long of Asc Node:      125.15993 +/-     0.000
Inclination:            23.32755 +/-     0.000
Eccentricity:         0.00322646 +/-    0.0000
Semi-Major Axis:     46.78674027 +/-    0.0042
Time of Perihelion: 2474071.0951 +/-     411.2
Perihelion:          46.63578453 +/-    0.0045
Aphelion:            46.93769600 +/-    0.0046
Period (y)              320.0312 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.80548521 +/-    0.0006
Ecliptic Y           37.56230723 +/-    0.0008
Ecliptic Z            0.47507784 +/-    0.0000
Ecliptic XDOT        -0.00184760 +/-    0.0000
Ecliptic YDOT        -0.00138982 +/-    0.0000
Ecliptic ZDOT         0.00099653 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.73647003 +/-    0.0007
Geocenter to KBO     45.78669775 +/-    0.0010
# Hcoef:  5.91

The following table shows the complete astrometric record for 99CL119. 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 (99CL119) followed by the observatory code and reference code for the source of the astrometry.

1999 02  11.29447  08 34 51.17   +19 18 14.0   22.3R 99CL119   568  Ca4178      
1999 02  11.37670  08 34 50.80   +19 18 15.6   22.3R 99CL119   568  Ca4178      
1999 02  17.26347  08 34 25.46   +19 20 13.3   22.3R 99CL119   568  Ca4178      
1999 02  17.30662  08 34 25.28   +19 20 14.5   22.3R 99CL119   568  Ca4178      
1999 03  10.38367  08 33 06.89   +19 26 25.5   22.3R 99CL119   568  Ca4506      
1999 03  10.39741  08 33 06.84   +19 26 25.7   22.3R 99CL119   568  Ca4506      
1999 04  09.34053  08 32 06.43   +19 31 57.2   22.6R 99CL119   568  Ca4506      
1999 04  11.29882  08 32 05.04   +19 32 09.5   22.6R 99CL119   568  Ca4506      
1999 12  28.41958  08 42 58.13   +19 12 38.4   22.1R 99CL119   695  Ca8502      
1999 12  28.49390  08 42 57.85   +19 12 40.2   22.7R 99CL119   695  Ca8502      
1999 12  28.55970  08 42 57.61   +19 12 41.1   21.9R 99CL119   695  Ca8502      
1999 12  29.44564  08 42 54.25   +19 12 59.0   22.3R 99CL119   695  Ca8502      
1999 12  29.50881  08 42 54.02   +19 13 00.1   22.5R 99CL119   695  Ca8502      
1999 12  30.62664  08 42 49.69   +19 13 21.7         99CL119   568  Ca8502      
1999 12  31.60211  08 42 45.90   +19 13 41.2         99CL119   568  Ca8502      
1999 12  31.62312  08 42 45.81   +19 13 41.8         99CL119   568  Ca8502      
2001 03  11.06043  08 42 41.14   +19 47 23.2   22.2  99CL119   304  Ce8574      
2001 03  11.08751  08 42 41.05   +19 47 23.6         99CL119   304  Ce8574      
2002 02  03.61294  08 49 57.11   +19 45 21.1   22.2R 99CL119   568  Cf1463      
2002 02  04.48508  08 49 53.14   +19 45 40.2         99CL119   568  Cf1463      
2004 12  13.395013 09 07 56.14   +19 50 44.8   22.6V 99CL119   645  C~1BPS      
2004 12  13.395843 09 07 56.14   +19 50 44.8   22.6V 99CL119   645  C~1BPS      
2004 12  13.398330 09 07 56.13   +19 50 44.8   23.4V 99CL119   645  C~1BPS      
2007 02  15.21330  09 13 34.40   +20 29 28.3   22.2R 99CL119   688  Cu2274      
2007 02  15.31115  09 13 33.97   +20 29 29.5         99CL119   688  Cu2274      
2011 01  08.33423  09 35 54.57   +20 35 43.4   22.4R 99CL119   695  C~0U2H      
2011 01  08.47828  09 35 54.07   +20 35 47.2         99CL119   695  C~0U2H      
2011 01  08.54482  09 35 53.77   +20 35 48.5         99CL119   695  C~0U2H      

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     0.19       0.00    -0.09
  2   0.0002     -5.47     0.18       0.25    -0.18
  3   0.0163   -382.16     0.20      25.12    -0.21
  4   0.0165   -384.93     0.17      25.65     0.14
  5   0.0742  -1551.41    -0.03     110.87     0.23
  6   0.0742  -1552.15    -0.11     110.89     0.20
  7   0.1562  -2461.74    -0.00     222.40    -0.06
  8   0.1615  -2483.81     0.08     229.51     0.01
  9   0.8765   6756.61    -0.09    1430.58     0.17
 10   0.8767   6752.31    -0.12    1431.28     0.52
 11   0.8768   6748.79     0.12    1431.27     0.19
 12   0.8793   6698.12    -0.19    1436.17     0.49
 13   0.8794   6694.69     0.04    1436.39     0.41
 14   0.8825   6629.78    -0.34    1441.30    -0.46
 15   0.8852   6572.82    -0.32    1446.18    -0.57
 16   0.8852   6571.43    -0.45    1446.43    -0.42
 17   2.0774   5982.21    -0.04    3382.32     0.20
 18   2.0775   5980.87    -0.06    3382.37     0.18
 19   2.9797  11962.15     0.27    4899.93    -0.20
 20   2.9820  11902.82     0.27    4903.15    -0.63
 21   5.8374  26627.27     0.30    9567.84    -0.06
 22   5.8374  26627.27     0.33    9567.84    -0.07
 23   5.8374  26627.13     0.29    9567.80    -0.13
 24   8.0107  30568.59    -0.59   13273.21     0.62
 25   8.0110  30562.32    -0.08   13272.48    -0.35
 26  11.9070  49058.91    -0.05   19957.60     0.17
 27  11.9074  49050.56     0.34   19958.77     0.30
 28  11.9076  49045.88    -0.30   19958.52    -0.42

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.

99CL119    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        46.922    46.934    46.909
ecceobj         0.005     0.005     0.005
incobj         23.294    23.294    23.294
qmin           45.962    45.987    45.948
qmax           48.027    48.049    48.020
amean          46.936    46.949    46.924
amin           46.566    46.584    46.565
amax           47.300    47.314    47.287
emean           0.007     0.007     0.007
emin            0.000     0.000     0.000
emax            0.016     0.016     0.016
imean          21.814    21.814    21.814
imin           21.601    21.598    21.601
imax           22.040    22.041    22.038
excite_mean     0.372     0.372     0.372
fracstop        1.000     1.000     1.000
cjmean          2.960     2.960     2.960

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       175.3     174.9     175.9
kozaiamp        179.9     179.9     180.0