Table 1: Data on telescopes and receivers.
Telescope Frequency Beamwidth $T_{\rm rec}$ $\eta_{\rm mb}$

[MHz] [ $\hbox {$^{\prime \prime }$ }$ ] [K]

OSO 86847 42 150 0.55

SEST 86847 57 100 0.75

SEST 130269 39 120 0.65

IRAM 130269 18 150 0.58

SEST 217105 25 600 0.55

SEST 260518 21 800 0.45

**Table 1:** Data on telescopes and receivers.
Telescope	Frequency	Beamwidth	$T_{\rm rec}$	$\eta_{\rm mb}$
	[MHz]	[ $\hbox {$^{\prime \prime }$ }$ ]	[K]
OSO	86847	42	150	0.55
SEST	86847	57	100	0.75
SEST	130269	39	120	0.65
IRAM	130269	18	150	0.58
SEST	217105	25	600	0.55
SEST	260518	21	800	0.45

Source LaTeX | All tables | In the text