Thus, the amount of observational data in existence tends to be larger on Calendar days. Totality up to 4 min 8 s. Partial phases visible in U.S. southeast of a line drawn approx. Partial phases visible in southern China, SE Asia, southern Japan, and extending to the south past Australia and New Zealand. The dates are given in Note 1 under the Calendar.
Minimum program is PRWDs.
See Airglow and Aurora. During weeks with RWDs. S.T. Wu, Univ of Alabama, Huntsville Dept. The ISES coordinates the international aspects of the world days program and rapid data interchange. Similar Calendars have been issued annually beginning with the IGY, 1957-58, and have been published in various widely available scientific publications.