**Table 1:** Odin Mars observation log.
Date UT	Orbits	Central ¹	Average	Integ. time	Mars	Pointing
yyyy/mm/dd.dd-dd.dd	numbers	frequency [GHz]	$T_{\rm SYS}$ [K]	"ON'' + "OFF'' [h]	diameter [ $^{\prime \prime }$ ]	offset [ $^{\prime \prime }$ ] ²
549 A1 receiver (with AOS)
2003/06/14.60-15.11	12 560-12 567	556.956 U	3080	4.8 + 1.6	14.19	4
2003/06/16.61-16.79	12 590-12 592	557.658 U	3200	1.6 + 0.8³	14.45	7
2003/06/16.81-17.19	12 593-12 598	558.354 U	4200	3.2 + 1.6	14.48	7
2003/06/17.21-17.32	12 599-12 600	558.354 U	3110	1.6 + 0	14.53	7
2003/06/17.35-17.86	12 601-12 608	556.254 U	3070	4.8 + 1.6	14.58	7
2003/06/17.88-18.39	12 609-12 616	555.558 U	3070	4.8 + 1.6	14.63	6
495 A2 receiver (with AC2)
2003/06/14.60-15.11	12 560-12 567	487.254 L	2600	4.8 + 1.6	14.19	6
2003/06/16.61-18.39	12 590-12 616	487.254 L	2580	17.6 + 4.8	14.57	8
555 B2 receiver (with AOS)
2003/11/02.05-02.56	14 655-14 663	556.936 U	3290	3.9 + 1.3	14.70	7
2003/11/02.59-03.10	14 663-14 671	556.140 U	3270	4.1 + 1.4	14.62	7
2003/11/03.13-03.17	14 671-14 672	555.335 U	3250	0.7 + 0	14.58	7
2003/11/05.61-06.05	14 708-14 715	555.335 U	3290	3.5 + 1.4	14.17	10
2003/11/06.08-06.32	14 715-14 719	557.735 U	3280	2.6 + 0.7	14.11	12
2003/11/08.29-08.30	14 748-14 748	557.735 U	3250	0.1 + 0	13.80	10
2003/11/08.30-08.84	14 748-14 756	558.540 U	3290	5.2 + 1.4	13.77	10
2003/11/08.84-09.38	14 756-14 765	556.940 U	3250	5.0 + 1.4	13.67	9
555 B2 receiver (with AC2)
2003/11/08.84-09.38	14 756-14 765	556.936 U	3200	4.1 + 1.4	13.67	9
549 A1 receiver (with AC1)
2003/11/02.05-02.56	14 655-14 663	547.676 L	3500	4.4 + 1.4	14.70	9
2003/11/05.61-06.31	14 708-14 719	547.676 L	3730	5.1 + 1.9	14.15	15
2003/11/08.22-09.38	14 747-14 765	547.676 L	3600	8.5 + 2.5	13.72	9
572 B1 receiver (with AC2)
2003/11/02.05-03.17	14 655-14 672	576.268 U	3260	8.5 + 2.6	14.66	9
2003/11/05.61-06.31	14 708-14 719	576.268 U	3250	5.3 + 2.0	14.15	15
2003/11/08.22-08.84	14 747-14 756	576.268 U	3250	5.3 + 1.4	13.77	8

¹ Sky frequencies before correction for Odin velocity relative to Mars ( $\pm$ 7 to $\pm$ 33 MHz); U: upper side band, L = lower side band of the receiver.
² The average pointing bias provided by the attitude reconstruction versus targeted Mars position is 7 $^{\prime \prime }$ with $\approx$ 5 $^{\prime \prime }$ uncertainty in June. In addition the misalignment between the true telescope axis and the one modelled relative to the Odin platform and star-trackers is at most 15 $^{\prime \prime }$ . The 549 A1, 555 B2 and 495 A2 beams are also slightly misaligned by 7-10 $^{\prime \prime }$ from ground measurements and $\approx$ 10 $^{\prime \prime }$ in space on Jupiter maps. The difference in the continuum signal of Mars between the various frequencies can be an effect of slightly different pointing and also differences in true beam efficiencies. An additional pointing drift at the end of each orbit in June (up to 70 $^{\prime \prime }$ for a few minutes) is not included here and apparently not well reconstructed in the attitude files.
³ "OFF'' position is at an offset of 2 to 3 $^\circ$ instead of 15 $^\prime$ .

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations
	3 Data reduction
	4 Modelling of Martian atmospheric lines and results
	5 Discussion and conclusions
	References