This RTB includes five nights of data:
971116n, 980403n (H/W period 1), and 000317n (H/W period 4) in the north, and
980811s and 990923s (H/W period 5) in the south.

Note that the PSF ID encodes the approximate shape in its first 4 digits; eg, PSFID 09115 corresponds to a shape of about 0.911. The last digit of the PSF ID is the H/W period.

30 June 2001, WAW.