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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 24 October
To: solar-daily@lut.fi
Date: Sun, 24 Oct 93 21:58:11 MDT
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                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 24 OCT 93
                    ---------------------------------------


M-FACTORS FOR 3000 KM DISTANCES - M(3000)F2
-------------------------------------------

     MUR  SVE  SAL  DIX  KHA  MAG  ASH  TOM  WLP  MAU  VBG  GOO  EIE  TAO  CHU  KEA  ARG  BER  NIC  DYS  LEA
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z:                     3.4  3.4                 3.2                 3.4       3.2            3.0
01Z:                     3.2  3.2       3.2       3.3                 3.3       3.4            3.2
02Z:                     3.1  3.5       3.4       3.7                 3.2       3.7            3.6
03Z:                2.8  3.2  3.4       3.4       3.5                 3.3       3.5            3.0
04Z:      3.0  3.1  3.1  3.3  3.4  3.0  3.3  2.7  3.4  3.9  3.0  3.2  3.2       3.4  2.8       3.3       2.8
05Z: 3.1       3.3  3.3  3.3  3.5  3.3  3.3  2.9  3.4  3.0  2.8  4.2  3.4       3.4       3.5  3.6  2.8  3.0
06Z: 3.4       3.3  3.3  3.4  3.6  3.3  3.8  3.1  3.5  3.4  2.8   A   3.3       3.5  3.0  3.5  3.7  3.0  3.1
07Z:           3.3  3.3  3.5  3.2  3.2  3.6  3.2  3.0  4.3  3.2  3.8  3.3       3.1  2.8  3.3  3.6  3.4  3.2
08Z: 3.7       3.4       3.6  3.5  3.1  3.5  3.2  3.2  2.9  2.7   A   3.5       3.2  3.3  3.4  3.4  3.5  3.1
09Z: 3.3  3.2  3.3  3.3  3.3  3.3       3.5  2.8   A   3.6  2.6  3.5  3.4        A   3.1       3.3  2.8  2.6
10Z: 3.3  3.0       3.3  3.1  3.0       3.5  2.9  2.8  3.0  2.9   A   3.3       2.9  3.4  3.3  3.2  2.8  3.1
11Z: 3.4  3.1  3.3  3.1                 3.4  3.3  3.2  2.9  3.1   B   3.3       3.2  3.3  3.7  3.2  3.2  2.9
12Z: 3.5  2.9  3.4       3.0       3.1       3.4  3.6  3.2  3.5  2.5  2.8       3.6  3.4  3.7  3.5  3.1  3.3
13Z: 3.4                           3.2       3.5  3.6  3.2  3.4  3.7  3.2   R   3.6  3.4  3.4  3.3  3.6  3.3
14Z: 3.4            2.8  3.0       3.1       3.4  2.9  3.4  3.3  2.9  3.1   G   2.9  3.4       3.4  3.6
15Z: 3.4                 2.7       3.1       3.5  3.0  3.6  3.4  2.9  3.3  3.2  3.0  3.3  3.4  3.4  3.5  3.1
16Z: 3.5                 2.8       2.9       3.4  3.0  3.4  3.2  2.5  3.6       3.0  3.4  3.4  3.1  3.4
17Z:                     2.8       3.0       3.2  3.3  3.6  3.2  3.1  3.3  3.1  3.4  3.2  3.2       3.3
18Z: 3.1                                     3.3       3.3  3.3  3.3  3.5   B        3.4  3.4       3.3
19Z:                                         3.3       3.3  3.2  3.0  3.5  3.2       3.2  3.3       3.4
20Z:                                         3.3       3.3  3.3  3.4  3.0  3.2       3.5            3.3
21Z:                                         2.7       3.4  3.2       3.1  3.3       3.1  3.8       3.4
22Z:                                         2.3       3.4  3.4  3.3  3.3            2.8  3.4       3.4
23Z:                                         3.3       3.4  3.2  3.3  3.2            3.1  3.1       3.7  3.3
=========================================
Estimated Average Global M(3000)F2:  3.26.


MINIMUM OBSERVED FREQUENCIES - FMIN (MHz)
-----------------------------------------

     MUR  SVE  SAL  DIX  KHA  MAG  ASH  TOM
     ---  ---  ---  ---  ---  ---  ---  ---
00Z: 1.0  1.0  1.0  1.3  1.2  1.0
01Z:           1.0  1.2  1.2  1.0       1.3
02Z:                     1.0  1.0       1.0
03Z: 2.0  1.8       3.3  1.0  1.3       1.7
04Z:      1.7  1.0  3.0  1.1  1.1  1.8  1.5
05Z: 2.0  1.5  1.0  2.9  1.1  1.1  1.8  1.5
06Z: 2.3  1.5  1.8  2.7  1.1  1.0  1.8  1.9
07Z:      1.5  1.0  1.7  1.2  1.0  2.0  1.7
08Z: 1.0  1.4  1.0       1.0  1.0  2.0  1.4
09Z: 1.0  1.3  1.6  1.2  1.1  1.2       1.6
10Z: 1.0  1.6       1.2  1.3  1.2       1.0
11Z: 1.7  1.0  1.0  1.2                 1.1
12Z: 2.2  1.0  1.0  1.2  1.3       2.0
13Z: 1.9  1.4       1.0            2.0
14Z: 1.0  1.4       1.2  1.2       1.8
15Z: 1.2  1.5       1.2  1.1       2.0
16Z: 1.8  1.7       1.8  1.2       1.8
17Z: 1.0  1.0            1.1       1.8
18Z: 1.0  1.5       3.1
19Z:
20Z:
21Z:
22Z:
23Z:


CRITICAL SPORADIC E-LAYER FREQUENCIES - Es (MHz)
------------------------------------------------

     MUR  SVE  SAL  DIX  KHA  MAG  ASH  TOM
     ---  ---  ---  ---  ---  ---  ---  ---
00Z: 5.0  3.0  4.6  3.0  5.4  2.3
01Z:           3.2  5.1  3.3  2.6
02Z:                     3.6  2.7
03Z: 3.2            3.5  4.7  4.6       2.2
04Z:           2.0       2.9  5.8  3.8
05Z: 2.6  2.8            3.3  3.3  3.5
06Z:      5.0                 2.7  4.0  2.2
07Z:      4.2       2.3  3.1  2.3  4.1  2.0
08Z:      4.4            5.4  2.0  5.0
09Z:      3.0       1.6  1.7            1.9
10Z:      4.2       1.8       1.9
11Z:      4.4       2.0
12Z:      5.0       2.2            3.1
13Z:      4.0       2.8            2.2
14Z:      3.0       2.6
15Z:      3.0       4.4  1.3       2.3
16Z:      3.0       6.6
17Z: 3.2  3.0
18Z: 4.0  2.7       4.1
19Z:
20Z:
21Z:
22Z:
23Z:


OBSERVED CRITICAL F2 LAYER FREQUENCIES (MHz)
--------------------------------------------

      MUR  SVE  SAL  DIX  KHA  MAG  ASH  TOM  WLP  MAU  VBG  GOO  EIE  TAO  CHU  KEA  ARG  BER  NIC  DYS  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:       4.0            8.5  5.4                12.8                 9.3      12.8            3.9
01Z:                      9.3  6.1       3.9      13.2                10.7      13.2            4.2
02Z:                      9.0  7.3       5.4      10.7                11.4      10.7            4.4
03Z:       4.7       4.5  9.0  7.0       5.7       7.4                11.8       7.4            3.5
04Z:       6.2  4.3  5.0  9.1  7.2  8.6  8.0  4.8  6.1  4.1  4.6  3.8 12.4       6.1  3.0       5.1       8.3
05Z:  4.0  6.0  5.5  5.8  9.7  7.1 11.4  8.0  4.8  5.8  3.5  4.1  3.3 12.6       5.8       3.2  5.5  3.9  9.1
06Z:  5.0  8.5  5.8  5.2  8.8  6.6 10.8  8.4  4.2  4.0  4.0  3.7   A  13.6       4.0  2.9  5.3  8.9  4.0  7.2
07Z:       8.7  5.7  5.6  8.4  5.7  8.8  9.0  4.5  3.1  2.9  3.0  4.0 12.4       3.1  3.2  3.3  7.9  4.0  6.3
08Z:  4.8  7.0  6.1       6.4  4.6  8.4  7.6  3.8  3.4  2.9  2.6   A  12.4       3.4  2.6  2.8  7.3  3.6  6.3
09Z:  6.4  6.5  6.0  5.8  4.8  3.2       7.1  3.4  3.6  4.7  2.4  6.0 11.0       3.6  2.4       8.1  3.2  7.8
10Z:  6.3  7.0       5.2  4.3  2.9       7.0  3.5  3.8  3.5  3.6   A   9.2       3.8  4.0  4.1  9.9  3.5  6.8
11Z:  7.0  6.8  5.7  5.2                 5.8  4.8  3.4  3.4  4.3   B   9.0       3.4  5.5  6.5  9.7  2.8  5.7
12Z:  7.4  6.5  6.0       4.4       7.0       6.8  3.9  3.7  5.2  3.6  6.7       3.9  6.0  6.9  9.2  3.9  5.1
13Z:  6.5  5.3                      7.2       6.6  2.9  3.7  5.8  3.6  4.9   R   2.9  6.7  6.8  8.0  6.6  5.3
14Z:  6.7  5.1       3.0  5.0       5.8       7.7  1.9  6.4  6.3  3.4  4.6   G   1.9  6.7       7.9  7.3
15Z:  6.3  5.0            4.8       5.3       7.4  1.8  7.0  6.3  2.7  4.7  4.7  1.8  6.8  7.3  6.7  7.8  4.8
16Z:  3.2  4.2            4.7       3.8       7.7  2.3  8.5  6.2  3.6  4.6       2.3  7.1  7.4  5.1  8.2
17Z:       3.3            4.8       3.2       7.7  6.6  8.3  6.8  3.9  3.1  5.3  6.6  6.6  7.7       8.7
18Z:  4.8  3.3                                8.0       7.6  6.8  4.7  3.1   B        7.0  8.2       8.1
19Z:                                          7.6       8.8  6.4  4.9  3.0  5.8       6.8  7.9       8.5
20Z:                                          7.9       9.8  6.6  5.2  2.4  6.0       5.8            8.6
21Z:                                          5.7       9.2  6.3       2.4  6.4       6.5  6.6       8.8
22Z:                                          5.3       8.3  5.9  5.4  3.9            5.3  4.9       8.0
23Z:                                          5.0       7.8  4.4  5.4  6.7            4.4  4.6       7.2  6.0
=========================================
Estimated Average Global foF2:  5.97 MHz.


MAXIMUM USABLE FREQUENCIES FOR 3000 KM PATHS (MHz) - MUF(3000)
--------------------------------------------------------------

      MUR  SVE  SAL  DIX  KHA  MAG  ASH  TOM  WLP  MAU  VBG  GOO  EIE  TAO  CHU  KEA  ARG  BER  NIC  DYS  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:                     28.9 18.4                41.0                31.6      41.0           11.7
01Z:                     29.8 19.5      12.5      44.2                35.3      44.9           13.4
02Z:                     27.9 25.6      18.4      39.6                36.5      39.6           15.8
03Z:                12.6 28.8 23.8      19.4      25.5                38.9      25.9           10.5
04Z:      18.6 13.3 15.5 30.0 24.5 25.8 26.4 13.0 20.7 16.0 13.8 12.2 39.7      20.7  8.4      16.8      23.2
05Z: 12.4      18.1 19.1 32.0 24.9 37.6 26.4 13.9 19.7 10.5 11.5 13.9 42.8      19.7      11.2 19.8 10.9 27.3
06Z: 17.0      19.1 17.2 29.9 23.8 35.6 31.9 13.0 13.8 13.6 10.4   A  44.9      14.0  8.7 18.6 32.9 12.0 22.3
07Z:           18.8 18.5 29.4 18.2 28.2 32.4 14.4  9.5 12.5  9.6 15.2 40.9       9.6  9.0 10.9 28.4 13.6 20.2
08Z: 17.8      20.7      23.0 16.1 26.0 26.6 12.2 10.9  8.4  7.0   A  43.4      10.9  8.6  9.5 24.8 12.6 19.5
09Z: 21.1 20.8 19.8 19.1 15.8 10.6      24.9  9.5   A  16.9  6.2 21.0 37.4        A   7.4      26.7  9.0 20.3
10Z: 20.8 21.0      17.2 13.3  8.7      24.5 10.2 10.8 10.5 10.4   A  30.4      11.0 13.6 13.5 31.7  9.8 21.1
11Z: 23.8 21.1 18.8 16.1                19.7 15.8 10.7  9.9 13.3   B  29.7      10.9 18.1 24.1 31.0  9.0 16.5
12Z: 25.9 18.9 20.4      13.2      21.7      23.1 14.0 11.8 18.2  9.0 18.8      14.0 20.4 25.5 32.2 12.1 16.8
13Z: 22.1                          23.0      23.1 10.4 11.8 19.7 13.3 15.7   R  10.4 22.8 23.1 26.4 23.8 17.5
14Z: 22.8            8.4 15.0      18.0      26.2  5.5 21.8 20.8  9.9 14.3   G   5.5 22.8      26.9 26.3
15Z: 21.4                13.0      16.4      25.9  5.3 25.2 21.4  7.8 15.5 15.0  5.4 22.4 24.8 22.8 27.3 14.9
16Z: 11.2                13.2      11.0      26.2  6.8 28.9 19.8  9.0 16.6       6.9 24.1 25.2 15.8 27.9
17Z:                     13.4       9.6      24.6 22.1 29.9 21.8 12.1 10.2 16.4 22.4 21.1 24.6      28.7
18Z: 14.9                                    26.4      25.1 22.4 15.5 10.8   B       23.8 27.9      26.7
19Z:                                         25.1      29.0 20.5 14.7 10.5 18.6      21.8 26.1      28.9
20Z:                                         26.1      32.3 21.8 17.7  7.2 19.2      20.3           28.4
21Z:                                         15.4      31.3 20.2       7.4 21.1      20.1 25.1      29.9
22Z:                                         12.2      28.2 20.1 17.8 12.9           14.8 16.7      27.2
23Z:                                         16.5      26.5 14.1 17.8 21.4           13.6 14.3      26.6 19.8
===============================================
Estimated Average Global MUF(3000)F2: 19.44 MHz.


OBSERVED TOTAL IONOSPHERIC ELECTRON CONTENT
-------------------------------------------

      TAO  ANC  CNV  PAL  BOU  SHE  OSA
     ---- ---- ---- ---- ---- ---- ----
00Z:  380                 170
01Z:  450                 120
02Z:                      100
03Z:                      100
04Z:                 120   69
05Z:       320   98  110   64
06Z:  570  310  100   81   65
07Z:  480  300  100   42   57
08Z:       290   87   38
09Z:       290        39   40
10Z:       290   89   38   40
11Z:       290   93   37   41
12Z:       280  120   39   40
13Z:       280  160   27   43
14Z:       280  200   16   82
15Z:       280  220   17  110
16Z:       280  230   19  150
17Z:       310  270   68  160
18Z:       340  280  160  190
19Z:       370  280  230  210
20Z:  110  390  290   33  200
21Z:  110  400  270  460  200
22Z:  160  410  250  570  180
23Z:  240  390  220  690  170


LIST OF REPORTING STATIONS AND THE SATELLITES THEY USE TO MEASURE TEC:

MUR = Murmansk                   USSR                (N68E033)
SVE = Sverdlovsk                 USSR                (N56E061)
SAL = Salekhard                  USSR                (N66E066)
DIX = Dixon                      USSR                (N74E081)
KHA = Khabarovsk                 USSR                (N48E135)
MAG = Magadan                    USSR                (N60E151)
ASH = Ashkhabad                  USSR                (N37E058)
TOM = Tomsk                      USSR                (N56E085)
WLP = Wallops Island VA          USA                 (N37W075)
MAU = Maui HI                    USA                 (N20W157)
VBG = Vandenberg AFB CA          USA                 (N34W120)
GOO = Goose Bay                  Canada              (N53W060)
EIE = Eielson AFB AK             USA                 (N64W147)
TAO = Taoyuan                    Taiwan              (N25E121)
CHU = Churchill                  Canada              (N58W094)
KEA = Keakawapu HI               USA                 (N20W156)
ARG = Argentia                   Canada              (N48W053)
BER = Bermuda                    Bermuda             (N32W064)
NIC = Nicosia                    Cyprus              (N35E033)
DYS = Dyess AFB TX               USA                 (N32W099)
LEA = Learmonth                  Australia           (S21E115)
ANC = Anchorage AK               USA                 (N61W150)
CNV = Cape Canaveral FL          USA                 (N28W080)
PAL = Palehua HI                 USA                 (N21W158)
BOU = Boulder CO                 USA                 (N40W105)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)


DESCRIPTIVE CODES WHICH MAY APPEAR IN THE FOF2, M(3000), OR SID SECTIONS:

            A = Blanketing Sporadic E
            B = Complete Absorption
            C = Equipment Problems
            D = Frequency Higher than Equipment
            E = Frequency Lower than Equipment
            F = Spread Echoes
            G = FOF2 is less than FOF1
            I = Smoothed Value
            R = Attenuation


     Values in this experimental daily report have not been checked
     for errors and may occasionally contain a few.  Total electron
     content values are given in units of 10^15 electrons per square meter.


