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{\bf Table 2}. R\'esultats de la campagne 1992 \`a $60\degr$ d'hauteur\\
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Date & MJD & Obs & \multicolumn{1}{l}{\phantom{$-$}BSE} & \multicolumn{1}{l}{\phantom{$-$}BIE} & \multicolumn{1}{l}{\phantom{$-$}BIW} & \multicolumn{1}{l}{\phantom{$-$}BSW} & \multicolumn{1}{l}{$\phantom{-}\Delta\alpha$} & \multicolumn{1}{l}{$\phantom{-}\sigma$} & \multicolumn{1}{l}{$\phantom{-}Y$}
& \multicolumn{1}{l}{$\phantom{-}\Delta s$} & \multicolumn{1}{l}{$\phantom{-}\sigma$} & \multicolumn{1}{l}{$s$}\\
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0413 & 48726.1 &\phantom{0}6 &    $***$ &    $***$ & $-$0$.\!\!^{\scriptscriptstyle\prime\prime}\!$039 & $-$0$.\!\!^{\scriptscriptstyle\prime\prime}\!$527 &          &             &         &         &      & \\[-0.3ex]
0414 & 48727.0 &\phantom{0}6 &    1$.\!\!^{\scriptscriptstyle\prime\prime}\!$395 &    2$.\!\!^{\scriptscriptstyle\prime\prime}\!$104 &    $***$ &    $***$ &          &             &         &         &      & \\[-0.3ex]
0415 & 48728.1 &\phantom{0}7 &    0.160 &    2.106 &    2.462 &    0.221 &    0\fs016 & $\pm 0\fs029$ &    1$.\!\!^{\scriptscriptstyle\prime\prime}\!$24 & $-$1$.\!\!^{\scriptscriptstyle\prime\prime}\!$05 & $\pm$ 0$.\!\!^{\scriptscriptstyle\prime\prime}\!$07 & 958$.\!\!^{\scriptscriptstyle\prime\prime}\!$59 \\[-0.3ex]
0420 & 48733.1 &\phantom{0}7 &    1.273 &    1.891 &    3.083 &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0424 & 48737.1 &\phantom{0}6 & $-$0.317 &    0.108 & $-$1.326 &    1.202 &    0.003 & $\pm 0.253$ & $-$0.08 &   0.53  & $\pm 0.74$ & 960.17 \\[-0.3ex]
0425 & 48738.1 &\phantom{0}7 &    0.263 &    0.809 &    1.095 & $-$0.236 & $-$0.006 & $\pm 0.067$ &    0.48 & $-$0.47 & $\pm 0.20$ & 959.17 \\[-0.3ex]
0427 & 48740.1 &\phantom{0}6 &    $***$ &    0.526 & $-$1.141 & $-$0.780 &          &             &         &         &      &        \\[-0.3ex]
0429 & 48742.0 &          16 &    2.576 &    $***$ &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0504 & 48747.1 &\phantom{0}6 & $-$0.261 &    1.090 &    2.207 & $-$0.519 &    0.022 & $\pm 0.110$ &    0.63 & $-$1.02 & $\pm 0.34$ & 958.62 \\[-0.3ex]
0505 & 48748.1 &\phantom{0}7 & $-$1.758 & $-$0.285 &    1.372 &    0.543 &    0.100 & $\pm 0.051$ & $-$0.03 & $-$0.58 & $\pm 0.16$ & 959.06 \\[-0.3ex]
0506 & 48749.1 &\phantom{0}6 &    0.753 &    0.414 &    1.603 & $-$0.348 &    0.002 & $\pm 0.181$ &    0.61 & $-$0.40 & $\pm 0.57$ & 959.24 \\[-0.3ex]
0507 & 48750.1 &          16 &    0.553 &    2.903 &    $***$ &    0.378 &          &             &         &         &      &        \\[-0.3ex]
0509 & 48752.1 &\phantom{0}7 &    1.652 &    1.398 &    2.007 &    0.859 & $-$0.004 & $\pm 0.109$ &    1.48 & $-$0.22 & $\pm 0.35$ & 959.42 \\[-0.3ex]
0510 & 48753.1 &\phantom{0}7 & $-$1.348 &    2.112 &    1.549 & $-$0.001 &    0.019 & $\pm 0.148$ &    0.58 & $-$1.25 & $\pm 0.48$ & 958.38 \\[-0.3ex]
0511 & 48754.1 &\phantom{0}6 &    0.855 &    1.258 & $-$0.266 &    0.924 & $-$0.035 & $\pm 0.123$ &    0.69 &   0.20  & $\pm 0.40$ & 959.84 \\[-0.3ex]
0515 & 48757.9 &\phantom{0}6 & $-$1.939 & $-$2.259 &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0522 & 48764.9 &\phantom{0}7 & $-$3.566 &    $***$ &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0525 & 48768.1 &\phantom{0}7 & $-$4.283 & $-$1.719 &    $***$ & $-$3.466 &          &             &         &         &      &        \\[-0.3ex]
0527 & 48770.1 &\phantom{0}6 & $-$1.697 & $-$1.761 & $-$1.974 & $-$2.848 & $-$0.030 & $\pm 0.070$ & $-$2.07 & $-$0.20 & $\pm 0.23$ & 959.44 \\[-0.3ex]
0601 & 48774.9 &\phantom{0}7 & $-$4.535 &    $***$ &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0602 & 48776.1 &\phantom{0}7 & $-$4.235 &    0.079 &    0.909 & $-$3.026 &    0.045 & $\pm 0.028$ & $-$1.57 & $-$2.06 & $\pm 0.09$ & 957.55 \\[-0.3ex]
0603 & 48777.1 &\phantom{0}6 & $-$2.622 & $-$1.592 & $-$0.384 & $-$1.547 &    0.050 & $\pm 0.010$ & $-$1.54 & $-$0.55 & $\pm 0.03$ & 959.09 \\[-0.3ex]
0604 & 48778.1 &          16 & $-$0.871 & $-$0.787 & $-$3.721 & $-$2.184 & $-$0.093 & $\pm 0.120$ & $-$1.89 &   0.36  & $\pm 0.41$ & 960.01 \\[-0.3ex]
0605 & 48779.1 &\phantom{0}6 &    $***$ &    $***$ & $-$0.942 & $-$0.429 &          &             &         &         &      &        \\[-0.3ex]
0609 & 48783.1 &\phantom{0}7 & $-$2.278 &    0.154 &    1.025 & $-$2.574 &    0.012 & $\pm 0.086$ & $-$0.92 & $-$1.51 & $\pm 0.29$ & 958.11 \\[-0.3ex]
0610 & 48784.1 &\phantom{0}6 & $-$2.056 &    0.887 &    0.130 & $-$3.038 & $-$0.038 & $\pm 0.017$ & $-$1.02 & $-$1.53 & $\pm 0.06$ & 958.09 \\[-0.3ex]
0618 & 48791.9 &\phantom{0}7 & $-$3.137 &    $***$ &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0624 & 48797.9 &\phantom{0}6 & $-$0.297 &    $***$ &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0626 & 48800.1 &\phantom{0}7 & $-$4.389 &    0.376 &    1.389 & $-$3.904 &    0.032 & $\pm 0.039$ & $-$1.63 & $-$2.51 & $\pm 0.13$ & 957.09 \\[-0.3ex]
0630 & 48804.1 &\phantom{0}7 & $-$4.011 &    0.282 & $-$3.162 & $-$3.408 & $-$0.062 & $\pm 0.298$ & $-$2.57 & $-$1.13 & $\pm 1.01$ & 958.49 \\[-0.3ex]
0701 & 48805.1 &\phantom{0}6 & $-$4.789 &    0.036 & $-$0.881 & $-$2.527 &    0.029 & $\pm 0.234$ & $-$2.04 & $-$1.62 & $\pm 0.79$ & 958.00 \\[-0.3ex]
0703 & 48806.9 &\phantom{0}6 & $-$3.406 & $-$0.906 &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0707 & 48810.9 &          16 & $-$1.253 & $-$0.157 &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0708 & 48812.1 &\phantom{0}6 & $-$0.304 & $-$0.021 & $-$0.172 & $-$2.751 & $-$0.057 & $\pm 0.170$ & $-$0.81 & $-$0.72 & $\pm 0.57$ & 958.92 \\[-0.3ex]
0709 & 48813.1 &\phantom{0}6 & $-$2.188 &    1.320 &    0.427 & $-$2.689 & $-$0.031 & $\pm 0.029$ & $-$0.78 & $-$1.66 & $\pm 0.10$ & 957.96 \\[-0.3ex]
0710 & 48814.1 &          16 & $-$2.750 & $-$0.276 & $-$0.017 & $-$2.134 &    0.019 & $\pm 0.026$ & $-$1.29 & $-$1.15 & $\pm 0.09$ & 958.48 \\[-0.3ex]
0717 & 48821.1 &\phantom{0}6 & $-$4.665 &    0.574 & $-$0.314 & $-$2.662 &    0.025 & $\pm 0.216$ & $-$1.77 & $-$1.90 & $\pm 0.72$ & 957.72 \\[-0.3ex]
0720 & 48823.9 &\phantom{0}6 & $-$4.135 &    0.319 &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0721 & 48825.1 &          16 & $-$4.553 & $-$2.526 & $-$5.020 & $-$4.818 & $-$0.063 & $\pm 0.168$ & $-$4.23 & $-$0.46 & $\pm 0.56$ & 959.18 \\[-0.3ex]
0722 & 48826.1 &\phantom{0}6 & $-$3.005 &    0.795 & $-$0.442 & $-$3.316 & $-$0.035 & $\pm 0.070$ & $-$1.49 & $-$1.67 & $\pm 0.23$ & 957.95 \\[-0.3ex]
0723 & 48827.1 &\phantom{0}6 & $-$3.484 & $-$0.082 & $-$0.220 & $-$3.335 &    0.000 & $\pm 0.022$ & $-$1.78 & $-$1.63 & $\pm 0.07$ & 957.99 \\[-0.3ex]
0727 & 48831.1 &\phantom{0}6 & $-$3.294 & $-$0.524 & $-$0.116 & $-$3.112 &    0.014 & $\pm 0.017$ & $-$1.76 & $-$1.44 & $\pm 0.06$ & 958.18 \\[-0.3ex]
0729 & 48833.1 &\phantom{0}6 & $-$3.281 & $-$2.141 & $-$0.959 & $-$2.946 &    0.036 & $\pm 0.065$ & $-$2.33 & $-$0.78 & $\pm 0.21$ & 958.85 \\[-0.3ex]
0803 & 48838.1 &\phantom{0}7 & $-$2.599 &    0.587 & $-$1.133 & $-$2.994 & $-$0.052 & $\pm 0.104$ & $-$1.53 & $-$1.26 & $\pm 0.33$ & 958.36 \\[-0.3ex]
0804 & 48839.1 &\phantom{0}7 & $-$4.208 & $-$1.161 & $-$0.990 & $-$4.206 &    0.004 & $\pm 0.013$ & $-$2.64 & $-$1.57 & $\pm 0.04$ & 958.06 \\[-0.3ex]
0805 & 48840.1 &\phantom{0}7 & $-$2.786 & $-$1.508 & $-$1.949 & $-$2.945 & $-$0.015 & $\pm 0.022$ & $-$2.30 & $-$0.57 & $\pm 0.07$ & 959.07 \\[-0.3ex]
0806 & 48841.0 &          13 & $-$3.595 &    $***$ &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0807 & 48842.1 &\phantom{0}7 & $-$2.983 & $-$0.405 & $-$0.490 & $-$2.490 &    0.010 & $\pm 0.046$ & $-$1.59 & $-$1.14 & $\pm 0.14$ & 958.48 \\[-0.3ex]
0810 & 48845.1 &\phantom{0}7 & $-$3.125 & $-$0.686 & $-$1.392 & $-$3.546 & $-$0.030 & $\pm 0.023$ & $-$2.19 & $-$1.15 & $\pm 0.07$ & 958.48 \\[-0.3ex]
0811 & 48846.0 &          13 & $-$3.394 &    $***$ &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0812 & 48847.0 &\phantom{0}7 & $-$3.509 &    0.610 &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0817 & 48852.1 &\phantom{0}7 & $-$2.479 & $-$0.714 & $-$0.929 & $-$3.577 & $-$0.038 & $\pm 0.075$ & $-$1.92 & $-$1.10 & $\pm 0.22$ & 958.53 \\[-0.3ex]
0818 & 48853.0 &\phantom{0}7 & $-$3.153 & $-$0.272 &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0819 & 48854.0 &\phantom{0}7 & $-$2.966 & $-$0.157 &    $***$ &    $***$ &          &             &         &         &      &        \\[-0.3ex]
0820 & 48855.1 &\phantom{0}7 & $-$3.111 &    1.306 &    0.013 & $-$5.371 & $-$0.110 & $\pm 0.085$ & $-$1.79 & $-$2.45 & $\pm 0.24$ & 957.17 \\[-0.3ex]
0824 & 48859.1 &\phantom{0}7 & $-$2.132 &    0.220 & $-$2.155 & $-$3.800 & $-$0.140 & $\pm 0.066$ & $-$1.97 & $-$1.00 & $\pm 0.18$ & 958.63 \\[-0.3ex]
0825 & 48860.1 &\phantom{0}7 & $-$2.329 &    0.493 & $-$0.477 & $-$4.306 & $-$0.105 & $\pm 0.095$ & $-$1.65 & $-$1.66 & $\pm 0.25$ & 957.96 \\[-0.3ex]
0826 & 48861.1 &\phantom{0}7 & $-$3.074 &    0.596 &    $***$ & $-$5.505 &          &             &         &         &      &        \\[-0.3ex]
0827 & 48862.1 &\phantom{0}7 & $-$2.797 &    0.018 & $-$0.279 & $-$4.917 & $-$0.093 & $\pm 0.179$ & $-$1.99 & $-$1.86 & $\pm 0.46$ & 957.76 \\[-0.3ex]
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\multicolumn{9}{@{}l}{{\em Observateurs:} 6: M. S\'anchez; 7: F. Parra; 13: R. Soto; 16: M. Soler}\\
\multicolumn{9}{@{}l}{$Y=\Delta z + \Delta\delta\cos S$}
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