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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 18 June
To: solar-daily@lut.fi
Date: 	Sun, 20 Jun 1993 04:22:13 +0300
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                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 18 JUN 93
                    ---------------------------------------


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

     MUR  ASH  SAL  TOM  DIX  KHA  MAG  JUL  MAU  VBG  GOO  EIE  TAO  RES  CHU  KEA  RAM  ARG  BER
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 3.0  2.9  2.7  2.9                 3.0  2.8       3.4  3.0  3.0            2.8  3.0   B    B
01Z: 3.1  2.6  3.0  3.1       2.9       2.9  2.8       3.1  3.0  3.3  3.1       2.9  3.3   B    B
02Z: 2.9       3.1  3.0                 3.0  2.9       2.9  3.0  2.8   F        2.9  3.2   B    B
03Z: 3.0  2.5  2.8  3.1                 3.1  2.9  3.1  3.1  3.1   A    F        2.9   A    B    B
04Z: 2.9  2.8  3.1  2.9       2.6  3.0  3.1  3.0  3.2  2.9  3.3   A    F        3.0  3.1   B    B
05Z: 3.1  2.6  3.0  3.1       2.8  3.0  3.1  3.1  3.2  3.1  3.6  3.0   F        3.1  2.9   B    A
06Z:           3.0  2.8       2.7  3.0  3.4  3.2  3.1  2.8  3.1  2.9            3.2  3.1   B    B
07Z:           3.1  3.0       2.9  2.8  3.2  3.4  2.8  3.3  3.0  3.0            3.4  3.0   B   3.3
08Z: 3.2       3.0  3.2            2.8  3.0  3.1  3.0  3.1  3.3  3.2            3.1  2.7   B    B
09Z:           3.1  3.2            3.0       3.1  2.8  3.0  3.0  3.4            3.1  2.9   B   4.0
10Z:           3.1  3.4       3.1  3.0       3.1  2.3  3.1  2.9  3.2            3.1  3.1   B   3.3
11Z:           3.3  3.2  2.9  3.1  3.2       3.1  3.0  3.1  3.0  3.0            3.1  3.4   A   3.4
12Z:           3.1  3.1  2.9  3.0  3.1       3.2  3.1  3.1  3.1  3.1            3.2  3.2   A   3.1
13Z:           3.2  3.3  3.0  3.0  3.2       3.0  3.4  3.3  2.4   R         R   3.0  3.2   B   3.4
14Z:      2.8  3.1  3.3  3.0  3.0  3.2       3.2  3.2  3.2  2.5   R        3.0  3.2  3.2   A   3.1
15Z: 3.1  2.7  3.1  3.1  3.1       3.1       3.4  2.9  3.0  3.0   R        3.0  3.4  2.8   A   3.0
16Z: 3.1  2.8  3.1  3.0  3.0  3.0  3.1       3.1  2.8  3.3  3.1   I        2.8  3.1  2.8   A   3.1
17Z: 3.1  3.0  3.2  2.9  3.0       2.9       3.2  3.2  2.9  2.7   F    F        3.2  3.1   A   3.0
18Z: 3.1  2.5  3.1       3.1       3.1            3.3  3.0  3.2   F                  2.8   A
19Z:                                                              F
20Z:                                               A   2.9  3.4   F    F                  3.1  3.1
21Z:                                              3.1  2.9  3.7  3.3       .90             B   3.2
22Z:                                              2.8  3.0  2.9  3.4   F                   B    A
23Z:                                              2.9  3.1  2.9  3.6   F                   B   3.4
=========================================
Estimated Average Global M(3000)F2:  3.05.


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

     MUR  ASH  SAL  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z: 1.0  2.0  1.0  1.0  1.0  1.5  1.0
01Z: 1.0  2.0  1.0  1.0  1.0  1.2  1.0
02Z: 1.0       1.0  1.0       1.3  1.0
03Z: 1.0  2.0  1.0  1.0  1.1       1.0
04Z: 1.0  2.0  1.0  1.0  1.0  1.4  1.0
05Z: 1.0  2.0  1.0  1.0  1.0  1.3  1.0
06Z: 1.1       1.0  1.0  1.0  1.1  1.0
07Z: 1.0       1.0  1.0  1.0  1.3  1.0
08Z: 1.0       1.0  1.0  1.0       1.0
09Z: 1.0       1.0  1.0            1.0
10Z: 1.0       1.0  1.0  1.0  1.2  1.0
11Z: 1.0       1.0  1.0  1.0  1.2  1.0
12Z: 1.0       1.0  1.0  1.0  1.0  1.0
13Z: 1.0       1.0  1.0  1.0  1.2  1.0
14Z: 1.0  2.0  1.0  1.0  1.0  1.1  1.0
15Z: 1.0  2.0  1.0  1.0  1.0       1.0
16Z: 1.0  2.0  1.0  1.0  1.2  1.0  1.0
17Z: 1.0  2.0  1.0  1.0  1.0       1.0
18Z: 1.0  2.0  1.0       1.0       1.0
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  ASH  SAL  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z: 2.8       5.0  2.7  3.8  6.2  4.1
01Z: 3.1            4.1  3.0  5.7  5.2
02Z:           3.0  5.3       3.9  4.1
03Z: 3.8  5.2  3.5   11            4.1
04Z:      4.0  3.3  5.2       3.5  3.9
05Z: 4.4  6.0  5.0  5.0       3.4  3.5
06Z: 4.0       5.0  3.9  4.2  3.3  3.8
07Z: 5.0       4.1  7.1  4.0  3.2  4.0
08Z: 4.3            5.2  4.6       3.0
09Z: 4.7       3.3  5.6            3.7
10Z: 4.3            3.2       3.0  2.6
11Z: 4.7                 3.0  4.5  2.0
12Z: 4.5            3.0       3.7  3.1
13Z: 4.2       4.0  3.2       1.0
14Z:      3.0  3.0  4.7       2.2
15Z:      2.0  3.2  7.0  2.7
16Z: 4.3  2.2  5.0  5.9  6.0
17Z: 4.0       3.0  4.6  4.5
18Z: 2.8  6.0  2.0       6.0       2.0
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  ASH  SAL  TOM  DIX  KHA  MAG  JUL  POI  OTI  MAU  CAM  VBG  GOO  EIE  TAO  RES  CHU  KEA  RAM  ARG  BER
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  4.3  4.8  4.6  5.3  4.6       4.8  5.2  6.3      10.1  5.6       5.8  4.9  6.3           10.1  3.8   B    B
01Z:  4.5  4.7  5.0  5.8  4.6  5.2       4.8  5.5      10.3  6.2       4.8  4.8  7.5  5.2      10.3  5.7   B    B
02Z:  4.5       5.0  6.1            4.7  4.4  5.2      10.5  5.9       4.2  4.8  6.8  5.1      10.5  5.7   B    B
03Z:  4.9  6.0  5.5  6.2  4.9       4.8  4.4  5.0      10.4  6.6  6.7  3.7  5.2   A    F       10.4   A    B    B
04Z:  5.1  6.8  5.6  6.2  4.8  5.8  5.2  5.4  5.0      10.5  6.6  6.2  3.5  8.4   A    F       10.5  4.9   B    B
05Z:  5.4  7.6  5.5  5.9  5.0  5.2  4.9  6.6  5.4      11.0  6.2  6.3  3.3  9.3  7.5   F       11.0  4.8   B    A
06Z:  5.3       5.5  6.0  4.9  5.3  4.8  7.2  6.1      10.7  6.2  6.3  3.4  9.4  8.5           10.7  4.4   B    B
07Z:  5.5       5.8  6.0  4.9  5.3  4.7  6.2  6.1      10.8  6.0  4.8  3.6  5.4  8.9           10.8  3.6   B   4.4
08Z:  5.6       5.7  6.0  5.0       4.9  6.1            8.0  3.7  4.8  4.0  5.1  9.3            8.0  3.4   B    B
09Z:  5.6       5.7  5.7            5.0                 7.2  3.8  5.4  4.4  4.9  8.3            7.2  3.2   B   2.5
10Z:  5.7       5.4  5.4  5.2  5.3  5.5                 7.1  3.9  7.0  4.4  4.5  6.0            7.1  4.5   B   5.2
11Z:  5.7       5.4  5.3  5.1  6.0  5.5                 6.8  3.9  4.6  5.1  4.2  6.2            6.8  5.5   A   5.8
12Z:  5.4       5.4  5.2  5.2  6.8  5.9            5.3  6.3  3.8  4.3  5.3  4.6  5.4            6.3  5.6   A   6.0
13Z:  5.4       5.1  5.4  5.0  6.4  6.3            5.6  5.7  3.8  5.3  5.5  4.7   R         R   5.7  5.6   B   5.9
14Z:  5.3  5.7  5.2  5.5  5.0  6.1  6.0                 5.7  3.9  5.7  5.3  4.8   R        5.0  5.7  5.8   A   5.9
15Z:  5.5  7.0  5.2  5.8  5.0       5.5            5.4  4.7  4.3  5.3  5.5  4.6   R        5.5  4.7  5.5   A   5.7
16Z:  5.5  8.1  5.3  6.5  5.0  5.7  5.6            6.4  4.2  4.3  5.8  5.3  4.8   I        5.2  4.2  5.7   A   5.4
17Z:  5.3  7.6  5.2  6.9  5.0       5.4            5.2  6.0  4.3  6.5  5.5  5.2   F   5.8       6.0  7.6   A   6.2
18Z:  5.6  6.8  5.5       5.0       5.3            5.2       4.5  7.1  5.5  4.9   F                  5.3   A
19Z:                                                         4.4                  F
20Z:                                                               A   5.3  5.2   F    F                  5.1  6.1
21Z:                                                         3.8  6.9  5.4  5.0  4.4       5.6             B   6.6
22Z:                                                         6.0  6.5  5.9  4.9  5.5   F                   B    A
23Z:                                                         5.6  6.6  6.4  5.2  7.9   F                   B   5.8
=========================================
Estimated Average Global foF2:  5.76 MHz.


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

      MUR  ASH  SAL  TOM  DIX  KHA  MAG  JUL  MAU  VBG  GOO  EIE  TAO  RES  CHU  KEA  RAM  ARG  BER
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 12.9 13.9 12.4 15.4                15.6 28.3      19.7 14.7 18.9           28.3 11.4   B    B
01Z: 13.9 12.2 15.0 18.0      15.1      13.9 29.4      14.9 14.4 24.8 16.1      29.9 18.8   B    B
02Z: 13.1      15.5 18.3                13.2 30.5      12.2 14.4 19.0   F       30.5 18.2   B    B
03Z: 14.7 15.0 15.4 19.2                13.6 30.2 20.8 11.5 16.1   A    F       30.2   A    B    B
04Z: 14.8 19.0 17.4 18.0      15.1 15.6 16.7 31.5 19.8 10.2 27.7   A    F       31.5 15.2   B    B
05Z: 16.7 19.8 16.5 18.3      14.6 14.7 20.5 34.1 20.2 10.2 33.5 22.5   F       34.1 13.9   B    A
06Z:           16.5 16.8      14.3 14.4 24.5 33.7 19.5  9.5 29.1 24.7           34.2 13.6   B    B
07Z:           18.0 18.0      15.4 13.2 19.8 36.7 13.4 11.9 16.2 26.7           36.7 10.8   B  14.5
08Z: 17.9      17.1 19.2           13.7 18.3 24.8 14.4 12.4 16.8 29.8           24.8  9.2   B    B
09Z:           17.7 18.2           15.0      22.3 15.1 13.2 14.7 28.2           22.3  9.3   B  10.0
10Z:           16.7 18.4      16.4 16.5      22.0 16.1 13.6 13.1 19.2           22.0 13.9   B  17.2
11Z:           17.8 17.0 14.8 18.6 17.6      21.1 13.8 15.8 12.6 18.6           21.1 18.7   A  19.7
12Z:           16.7 16.1 15.1 20.4 18.3      19.8 13.3 16.4 14.3 16.7           20.2 17.9   A  18.6
13Z:           16.3 17.8 15.0 19.2 20.2      17.1 18.0 18.1 11.3   R         R  17.1 17.9   B  20.1
14Z:      16.0 16.1 18.1 15.0 18.3 19.2      18.0 18.2 17.0 12.0   R       15.0 18.2 18.6   A  18.3
15Z: 17.0 18.9 16.1 18.0 15.5      17.0      16.0 15.4 16.5 13.8   R       16.5 16.0 15.4   A  17.1
16Z: 17.0 22.7 16.4 19.5 15.0 17.1 17.4      13.0 16.2 17.5 14.9   I       14.6 13.0 16.0   A  16.7
17Z: 16.4 22.8 16.6 20.0 15.0      15.7      19.2 20.8 16.0 14.0   F    F       19.2 23.6   A  18.6
18Z: 17.4 17.0 17.0      15.5      16.4           23.4 16.5 15.7   F                 14.8   A
19Z:                                                               F
20Z:                                                A  15.4 17.7   F    F                 15.8 18.9
21Z:                                              21.4 15.7 18.5 14.5       5.0             B  21.1
22Z:                                              18.2 17.7 14.2 18.7   F                   B    A
23Z:                                              19.1 19.8 15.1 28.4   F                   B  19.7
===============================================
Estimated Average Global MUF(3000)F2: 17.56 MHz.


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

      TAO  PAL  SHE  OSA  CNV  BOU  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  210  320   67       180  140   84
01Z:  270  340   99       190  150   74
02Z:  260  330  100       130  150   71
03Z:  290  330   98        77  150   68
04Z:  310  340   99        62        65
05Z:  330        67        62   71   70
06Z:  360  320   66        59   65   72
07Z:  370  280   63        62   65   74
08Z:  370  190   60        62   70   72
09Z:  330  150   53        53   74   68
10Z:  220  140   50        46   72   62
11Z:  150  130   53        55   69   54
12Z:  130  100   62        92   74   48
13Z:  110   88   76       150  110   45
14Z:  100   86   82       190  150   51
15Z:  100   65   83       210  170   75
16Z:   94   72   82       220  170  100
17Z:   93  120   58       210  190  130
18Z:   89  160            210
19Z:   71
20Z:   76  200   50       200
21Z:  110  240   89       170  160
22Z:  150  270  120       170  160  150
23Z:  190  290  130       160  160   95


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

MUR = Murmansk                   USSR                (N68E033)
ASH = Ashkhabad                  USSR                (N37E058)
SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
DIX = Dixon                      USSR                (N74E081)
KHA = Khabarovsk                 USSR                (N48E135)
MAG = Magadan                    USSR                (N60E151)
JUL = Juliusruh/Rugen            Germany             (N54E013)
POI = Poitiers                   France              (N46E000)
OTI = Ottawa                     Canada              (N45W076)
MAU = Maui HI                    USA                 (N20W157)
CAM = Camden                     Australia           (S34E151)
VBG = Vandenberg AFB CA          USA                 (N34W120)
GOO = Goose Bay                  Canada              (N53W060)
EIE = Eielson AFB AK             USA                 (N64W147)
TAO = Taoyuan                    Taiwan              (N25E121)
RES = Resolute Bay               Canada              (N74W094)
CHU = Churchill                  Canada              (N58W094)
KEA = Keakawapu HI               USA                 (N20W156)
RAM = Ramey AFB                  Puerto Rico         (N18W067)
ARG = Argentia                   Canada              (N48W053)
BER = Bermuda                    Bermuda             (N32W064)
PAL = Palehua HI                 USA                 (N21W158)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)
CNV = Cape Canaveral FL          USA                 (N28W080)
BOU = Boulder CO                 USA                 (N40W105)
ANC = Anchorage AK               USA                 (N61W150)


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.


