All Figures

Figure 1: This block diagram shows the layout of the instrument. High frequency signals from the telescope and the signal references are fed via pre-optics such as the Dicke switch, the single sideband filters and the diplexers for local oscillator injection, to the mixers. The mixers together with the first low noise amplifiers are mounted inside a cryostat. IF signals are after further amplification routed to the backend spectrometers.

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In the text

	Figure 2: The Odin CFRP main reflector with sub reflector can be seen mounted on the CFRP support structure that also holds the star tracker optical heads. Star tracker baffles are attached to the spacecraft structure. The radiometer platform is horizontal on this photo.
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In the text

	Figure 3: The LO and diplexer unit with 4 sub-mm LO units, their drive electronics (out of view), 4 polarising Martin-Pupplet diplexers and 4 SSB filters. The 8 tuning mechanisms that adjust rooftop mirrors are seen sticking out on both sides. The mirrors of the fixed arms are to the front together with the backside of 2 SSB terminations.
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In the text

	Figure 4: The radiometer platform. From the front, on the left side is the autocorrelator with filterbank, pre-optics, Stirling cooler and LO structure. In the middle part is the cooler electronics with warm load, warm IF unit, PLL and control electronics, cryostat with biasing and, out of sight, the 119 GHz warm electronics. On the right is AOS, mechanism electronics and second autocorrelator.
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In the text

	Figure 5: The sub-mm collimator used for the alignment verification together with the Odin telescope with receiver platform during early tests. These were repeated after the launch simulation system tests just before launch.
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In the text

	Figure 6: Attitude error during several orbits. The position (0,0) is the target attitude. The points in this plot represent the attitude error at one sample (dt= 1 s), projected in declination and right ascension. The half circle results from the uncorrected stellar aberration due to the spacecraft velocity around the earth.
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In the text

	Figure 7: Jupiter map at 557 GHz. The mapping, at 60 spacing, was performed in the position-switching mode, using a reference off at +1800 in RA. The crosses denote map positions in our re-gridded map (best-fit after attitude reconstruction).
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In the text