Orbit Fit and Astrometric record for 03YR179

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: 03YR179   
# Created Wed Apr 17 01:11:38 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     21 observations of     21
# Arc:  18.19y
# First observation: 2003/12/24
#  Last observation: 2022/03/02
# Chi-squared of fit:    26.28 DOF:     36 RMS:  0.20
# Min/Max residuals:    -0.59    0.60
# Exact a, adot, b, bdot, g, gdot:
  1.526229E-05  2.445238E-02  3.302467E-06  4.204873E-03  2.476715E-02 -2.745927E-04
# Covariance matrix:
  2.3229E-13 -1.7722E-14  3.8702E-15 -2.8578E-15  1.9110E-13 -3.8231E-14
 -1.7722E-14  3.5593E-14 -6.2106E-15  5.8838E-15  6.3677E-14  7.3127E-14
  3.8702E-15 -6.2106E-15  1.3260E-13 -9.6544E-15 -6.7783E-15 -1.3598E-14
 -2.8578E-15  5.8838E-15 -9.6544E-15  2.1391E-15  8.1307E-15  1.2728E-14
  1.9110E-13  6.3677E-14 -6.7783E-15  8.1307E-15  5.5722E-13  9.5319E-14
 -3.8231E-14  7.3127E-14 -1.3598E-14  1.2728E-14  9.5319E-14  1.5871E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.081768  110.972373    0.319258    0.017574   -0.927051  2452997.964183
# Heliocentric elements and errors
Epoch:              2452998.5000  =  2003/12/25
Mean Anomaly:          340.97813 +/-     0.028
Argument of Peri:       27.59659 +/-     0.031
Long of Asc Node:      104.40215 +/-     0.000
Inclination:             9.80577 +/-     0.000
Eccentricity:         0.05862496 +/-    0.0001
Semi-Major Axis:     43.71358517 +/-    0.0054
Time of Perihelion: 2458576.4379 +/-      20.2
Perihelion:          41.15087807 +/-    0.0063
Aphelion:            46.27629227 +/-    0.0068
Period (y)              289.0233 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -14.48645678 +/-    0.0004
Ecliptic Y           38.67727338 +/-    0.0011
Ecliptic Z            0.76239540 +/-    0.0000
Ecliptic XDOT        -0.00251423 +/-    0.0000
Ecliptic YDOT        -0.00101033 +/-    0.0000
Ecliptic ZDOT         0.00046432 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.30824642 +/-    0.0011
Geocenter to KBO     40.37610084 +/-    0.0012
# Hcoef:  7.06

The following table shows the complete astrometric record for 03YR179. 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 (03YR179) followed by the observatory code and reference code for the source of the astrometry.

2003 12  24.46344  07 31 25.08   +22 52 20.8   23.7g 03YR179   568  Cq9908      
2003 12  24.48664  07 31 24.96   +22 52 21.1   23.4g 03YR179   568  Cq9908      
2003 12  24.50988  07 31 24.85   +22 52 21.5   23.5g 03YR179   568  Cq9908      
2003 12  25.50403  07 31 19.82   +22 52 35.4   23.0g 03YR179   568  Cq9908      
2004 04  15.20143  07 25 25.72   +23 07 38.9         03YR179   675  Cq9908      
2004 04  15.24333  07 25 25.79   +23 07 39.0         03YR179   675  Cq9908      
2005 01  08.35280  07 36 14.78   +22 57 01.2   23.6r 03YR179   568  Cq9908      
2005 01  08.39064  07 36 14.57   +22 57 01.8   23.4r 03YR179   568  Cq9908      
2005 01  08.42845  07 36 14.36   +22 57 02.3   23.4r 03YR179   568  Cq9908      
2006 01  29.29718  07 40 36.61   +23 02 17.4         03YR179   675  Cq9908      
2006 01  29.30359  07 40 36.56   +23 02 17.4         03YR179   675  Cq9908      
2006 01  29.38287  07 40 36.15   +23 02 18.6         03YR179   675  Cq9908      
2013 03  12.13013  08 20 49.87   +22 50 23.7   22.9R 03YR179   G37  C~0qSV      
2013 03  12.27026  08 20 49.42   +22 50 25.0         03YR179   G37  C~0qSV      
2019 02  08.331750 09 00 07.210  +21 49 54.02  22.9G 03YR179   G37  C~2zmb      
2019 02  08.470480 09 00 06.485  +21 49 56.87        03YR179   G37  C~2zmb      
2021 02  15.237140 09 11 40.632  +21 28 20.01  22.6G 03YR179   G37  C~4Yr4      
2021 02  15.289750 09 11 40.349  +21 28 21.30        03YR179   G37  C~4Yr4      
2022 03  02.139170 09 16 33.638  +21 20 07.22  23.0G 03YR179   G37  C~5Rkz      
2022 03  02.179320 09 16 33.496  +21 20 07.13        03YR179   G37  C~5Rkz      
2022 03  02.219700 09 16 33.316  +21 20 07.87        03YR179   G37  C~5Rkz      

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     0.06       0.00    -0.14
     2   0.0001      0.00     0.04       0.00    -0.16
     3   0.0001      0.00     0.18       0.00    -0.08
     4   0.0028      0.00     0.07       0.00     0.05
     5   0.3087      0.00     0.07       0.00    -0.12
     6   0.3088      0.00     0.20       0.00     0.10
     7   1.0428      0.00    -0.04       0.00     0.04
     8   1.0429      0.00    -0.10       0.00     0.07
     9   1.0430      0.00    -0.15       0.00     0.01
    10   2.0995      0.00    -0.01       0.00     0.04
    11   2.0995      0.00    -0.26       0.00    -0.05
    12   2.0997      0.00    -0.21       0.00     0.06
    13   9.2147      0.00    -0.06       0.00     0.19
    14   9.2151      0.00    -0.01       0.00     0.26
    15  15.1263      0.00     0.34       0.00     0.03
    16  15.1266      0.00     0.28       0.00    -0.18
    17  17.1465      0.00     0.09       0.00    -0.17
    18  17.1467      0.00    -0.13       0.00    -0.06
    19  18.1867      0.00    -0.59       0.00     0.60
    20  18.1868      0.00     0.07       0.00    -0.25
    21  18.1869      0.00     0.18       0.00    -0.27

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.

03YR179    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.593    43.593    43.593
ecceobj         0.054     0.054     0.054
incobj          9.813     9.813     9.813
qmin           40.115    40.106    40.130
qmax           47.064    47.037    47.083
amean          43.484    43.484    43.484
amin           43.152    43.153    43.154
amax           43.838    43.840    43.839
emean           0.058     0.058     0.058
emin            0.042     0.042     0.042
emax            0.074     0.074     0.074
imean           8.193     8.193     8.193
imin            7.500     7.500     7.500
imax            8.913     8.910     8.915
excite_mean     0.154     0.154     0.154
fracstop        1.000     1.000     1.000
cjmean          3.067     3.067     3.067

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       180.0     179.9     180.0
kozaiamp        180.0     180.0     180.0