tapelabel 		JL4045
dataSource		ganglog		# ganglog, mt, spectro
device			/dev/mt/tps3d6nrnsvc		# tape drive

typedef enum {
        ASTROGANG, 	# GANG files for a single imaging run
        PHOTOGANG,	# GANG files for a single imaging run
	LOG,		# log files for a single imaging night
	MT,		# all files for a single MT night
	SPECTRO,	# all files for a single spectro night
	TPM		# all TPM files for a single night
} TARCONTENTS;


typedef struct {
   int filemarks;		# number of filemakrs to skip to get here
   TARCONTENTS contents;	# GANG, LOG, SPECTRO, MT
   int id;			# mjd for logs, run number for gangs
} TARFILE; 


tarfile 1 LOG 52051
tarfile 2 LOG 52050
tarfile 3 ASTROGANG 2316
tarfile 4 PHOTOGANG 2316
tarfile 5 ASTROGANG 2317
tarfile 6 PHOTOGANG 2317
tarfile 7 ASTROGANG 2318
tarfile 8 PHOTOGANG 2318
tarfile 9 ASTROGANG 2319
tarfile 10 PHOTOGANG 2319
tarfile 11 ASTROGANG 2320
tarfile 12 PHOTOGANG 2320
tarfile 13 ASTROGANG 2321
tarfile 14 PHOTOGANG 2321
tarfile 15 ASTROGANG 2322
tarfile 16 PHOTOGANG 2322
tarfile 17 SPECTRO 52051
tarfile 18 TPM 52051
tarfile 19 LOG 52051
tarfile 20 LOG 52050
tarfile 21 ASTROGANG 2316
tarfile 22 PHOTOGANG 2316
tarfile 23 ASTROGANG 2317
tarfile 24 PHOTOGANG 2317
tarfile 25 ASTROGANG 2318
tarfile 26 PHOTOGANG 2318
tarfile 27 ASTROGANG 2319
tarfile 28 PHOTOGANG 2319
tarfile 29 ASTROGANG 2320
tarfile 30 PHOTOGANG 2320
tarfile 31 ASTROGANG 2321
tarfile 32 PHOTOGANG 2321
tarfile 33 ASTROGANG 2322
tarfile 34 PHOTOGANG 2322
tarfile 35 SPECTRO 52051
tarfile 36 TPM 52051