We experienced a bit of a scare this week when four days went by without sunspots. That's right -- for the first time in three months, we saw more than a single day with a sunspot number of 0, and that last period was back during November 23-December 8. Until March 6, there were just three days since then without sunspots, each a bit less than two weeks apart: December 25, January 6 and January 19. Sunspot numbers for March 4-10 were 40, 35, 0, 0, 0, 0 and 12, with a mean of 12.4. The 10.7 cm flux was 81.3, 79.5, 78.3, 76.6, 76.3, 77.9 and 80.3, with a mean of 78.6. The estimated planetary A indices were 6, 2, 3, 4, 3, 2 and 7, with a mean of 3.9. The estimated mid-latitude A indices were 4, 1, 3, 3, 1, 2 and 6, with a mean of 2.9.
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