Function:     ircc_instrname

Purpose:      Returns IRAS instrument names.

Category:     IR

File:         ircc_const.c

Author:       P.R. Roelfsema

Use:          CHARACTER IRCC_INSTRNAME( OBSMODE ,     I   integer
                                        band      )   I   integer

              IRCC_INSTRNAME   
                          Returns the name of the instrument corresponding
                          to the observing mode and band numbers.
              OBSMODE     Observing mode number, can be:
                            1   - SURVEY
                            2   - SPLINE
                            3   - AO
                            4   - FLASH
			    5   - UNKNOWN
                          other - no observing mode
              BAND        Band number, can be:
                          1 - 4 - bands 1 - 4
                            5   - LRS
                            6   - BPHF
                          other - no band 

Description:
	The returned instrument names are a combination of observation name
	followed by band name, separated by one space. e.g.
		SURVEY B1
		SURVEY LRS
		AO BPHF
		AO B4     etc.

Updates:      Aug  8, 1990: PRR, Creation date
              Sep 10, 1990: PRR, Changed device to observing mode.
              Aug 19, 1991: PRR, Chang to make OBSMODE or BAND is 'other'
                                 work properly.