We have four  infrared air photos with no identifying markings.  Can someone help us interpret the following numbers?

 

NASA ERTS E-1285-16004-5 01        (4/May/73)

NASA ERTS E-1394-16051 -5 01  (21Aug73)

NASA ERTS E-1285-16001-5 01  (04/May/73)

NASA ERTS E-1394-16044 5 01  (21Aug73)

 

Responses can be sent to [log in to unmask]   (618-453-2705)

 

Thank you!

 

Janice Fiorino, Map Library Assistant

Morris Library

SIU at Carbondale, Il.