Table 2: List of telescopes and instruments involved in the multisite campaign. SCP means Single Channel Photometer; TCP means Three Channel Photometer. To give an idea of the relative photometric precision of each site, the last column shows the white noise in the Fourier space (amplitude) for each site. All the calculations are in the V filter except for Loiano (2002) and SARA sites for which we have only B filter data.

Observatory	Telescope	Instrument	Noise
			(mmag)
Loiano (Italy)	1.5 m	BFOSC - 2002	0.2
Loiano (Italy)	1.5 m	TTCP - 2003	0.2
BAO (China)	0.85 m	TCP	0.4
SPM (Mexico)	1.5 m	uvby Phot.	0.6
SARA (USA)	0.9 m	CCD	1.5
Teide (Spain)	1.0 m OGS	CCD	0.6
Fairborn (USA)	0.75 m T6	SCP	0.8
OSN (Spain)	0.9 m	uvby Phot.	0.6
Serra la Nave (Italy)	0.9 m	SCP	1.3
SOAO (Korea)	0.6 m	CCD	0.7