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Table 1 ALTAIR scans on 24 July 1979

From: Upwelling: a unit of disturbance in equatorial spread F

Scan number

Start and stop times (UT)

Direction (rate)

1

0907:11 - 0915:25

W → E(M*)

2

0915:59 - 0924:11

E → W(M)

3

0926:46 - 0931:36

W → E(M)

4

0939:16 - 0944:06

W → E(M)

5

0957:33 - 0959:25

W → E(F*)

6

1026:41 - 1030:55

E → W(F)

7

1035:53 - 1040:09

E → W(F)

  1. *Scan rates: M = 0.25°/s; F = 0.5°/s.