All Figures

$\begin{figure} \par\includegraphics{7229f1.eps} \end{figure}$ Figure 1: Tracing the frequency deviation using the telluric H₂¹⁷O line. As is evident, there was an early sudden shift of the line position, corresponding to an AOS laser mode jump during warming up - a small penalty because of our shared astronomy/aeronomy mission. The times of such shifts can be determined accurately since they affect the total power levels of the spectrometer. The gray dashed line shows the correction applied to the data from this sample observation.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.8cm]{7229f2.eps} \end{figure}$ Figure 2: Baseline levels and slopes in 52 RX555 and RX549 observations before any baseline subtractions. The error bars in the upper panel correspond to 3 $\sigma$ . The slopes are measured as the level difference of two halves of the spectra whose centres are separated by 496 MHz. This figure indeed highlights the stability of the receiver/AOS/calibration chain, but the upwards trends of the levels towards the ends of both spring observing runs remain unexplained. There is also an observation that inexplicably appears to lack continuum signal (while telluric spectral lines could still be detected).
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=17.05cm,clip]{7229fA1.eps} \end{figure}$ Figure A.1: The Odin spectral survey between 486.4 and 492.1 GHz (RX495). Note the intensity scaling factor of 1.25 to approximately deconvolve the spectrum to the beam size near 557 GHz (assuming a point source). Empty markers at the intensity level of 1.25 K denote CH₃OCHO lines.

In the text

$\begin{figure} \par\includegraphics[]{7229fA2.eps} \end{figure}$ Figure A.2: The Odin spectral survey between 541.4 and 547.1 GHz (RX549). Empty markers at the intensity level of 1.25 K denote CH₃OCHO lines. A star denotes a transition within a vibrationally excited state: $v_{\rm t}=1$ for methanol, and $\nu _{\rm 2}=1$ for SO₂.

In the text

$\begin{figure} \par\includegraphics[]{7229fA3a.eps} \end{figure}$ Figure A.3: The Odin spectral survey between 546.9 and 563.1 GHz (RX555). Unlabelled markers at intensity levels -0.1, 0.5, 0.9, and 1.25 K, belong to SO₂, (CH₃)₂OH, CH₃OH, and CH₃OCHO, respectively. A star denotes a transition within a vibrationally excited state: $v_{\rm t}=1$ for methanol, and $\nu _{\rm 2}=1$ for SO₂. Two sets of markers immediately below the spectrum baseline belong to ground state and vibrationally excited CH₃CN.

In the text

$\begin{figure} \par\includegraphics[]{7229fA3b.eps} \addtocounter{figure}{-1} \end{figure}$ Figure A.3: continued.

In the text

$\begin{figure} \par\includegraphics[]{7229fA3c.eps} \addtocounter{figure}{-1} \end{figure}$ Figure A.3: continued.

In the text

$\begin{figure} \par\includegraphics[]{7229fA4a.eps} \end{figure}$ Figure A.4: The Odin spectral survey between 562.9 and 577.6 GHz (RX572). Empty markers at the intensity level of 1.25 K denote CH₃OCHO lines.

In the text

$\begin{figure} \par\includegraphics[]{7229fA4b.eps} \addtocounter{figure}{-1} \end{figure}$ Figure A.4: continued.

In the text

$\begin{figure} { \includegraphics[]{7229fA4c.eps} } \end{figure}$ Figure A.4: continued.

In the text