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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 18 August
To: solar-daily@lut.fi
Date: Wed, 18 Aug 93 21:03:33 MDT
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Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
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Status: OR

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 18 AUG 93
                    ---------------------------------------


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

     MUR  ASH  SAL  TOM  DIX  MAG  KHA  JUL  UPS  BOU  GOO  EIE  TAO  RES  KEA  ARG  BER  NIC  DYS  LEA
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z:      3.0  3.1  3.2                 2.9  2.7  3.2  3.0  3.2  3.4   F        2.9  3.0  2.9  3.3  3.5
01Z:      2.9  3.0  3.1       2.8       2.7  2.8       2.9  3.1  2.9  3.0       3.1  2.9  3.0  3.4  3.3
02Z:      3.0  2.9  2.8       3.2       3.0  2.7       2.5  2.9  2.7  3.0       2.9  3.0  3.2  3.5  3.9
03Z:      2.9  2.9  2.7       2.9       2.9  3.0        A   2.9  2.8   F         B   2.7  3.1   A   3.2
04Z: 3.0  2.8  2.9  3.0       3.2       3.3             A   2.8  2.9  2.9       3.0  2.9  3.2   A    A
05Z: 3.0  2.6  2.9  3.1       3.2  2.7  3.3  2.8        A   2.7  2.9   F        2.9  3.1       2.7  3.2
06Z:      2.7  2.6  3.1  2.5  3.0       3.3            2.7   A   2.9             B    A         A   3.4
07Z: 2.9  2.8       2.9       3.0  2.8  3.0             A    A   3.0             B   2.8        A   3.2
08Z:      2.9  2.8  3.0       3.2       3.4             B   3.8  3.0             B   3.1        A   3.2
09Z:      3.0  3.0  2.9  2.8  3.0                       B    A   3.2             B   2.9       2.9   A
10Z:      3.0       3.0       3.2                       B    A   3.2             B   3.3       2.7  3.4
11Z:      2.9  3.0  3.1  2.8  3.0                       B    A   3.4            3.2  3.5       2.9  3.4
12Z:                                                    B    A   3.4       3.0  3.1  3.2       3.2  2.5
13Z:                                                   2.9   A   2.6       2.9  3.4  3.8       3.0  3.1
14Z:                                                   3.1   B   2.7       2.8   B   3.0       3.0  3.0
15Z:                                                    A    A   2.8       2.9  3.2  2.7       2.8  2.9
16Z:                                                   2.9   A   2.9       2.8  2.9  3.1  3.0  3.2  3.0
17Z:                                                   2.9   B   3.1       3.2  2.9  3.0  3.4  3.0  3.1
18Z:                                                   2.8   B   3.1            2.8  3.0  3.5  2.9  3.2
19Z:                                                   2.7  3.3  3.0            2.8  3.1   C   3.0  2.8
20Z:                                                   2.9  3.4                 2.9   A   3.3  2.9  3.1
21Z:                                                   3.0  3.7                 3.2   A   2.9  2.9  2.9
22Z:                                                   2.9  3.0  3.3   F        2.9   A   2.9  3.2  3.3
23Z:                                                   3.3  3.1  3.3  3.0       2.9  2.5  2.9  3.2  3.4
=========================================
Estimated Average Global M(3000)F2:  3.02.


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

     MUR  ASH  SAL  TOM  DIX  MAG  KHA
     ---  ---  ---  ---  ---  ---  ---
00Z: 1.5  1.6  2.0  1.0  1.4  1.4
01Z: 1.5  1.8  2.0  1.0       1.5
02Z:      1.7  2.7  1.0  3.0  1.6
03Z:      1.8  1.8  1.0  3.2  1.3
04Z: 1.0  1.8  1.0  1.0  2.0  1.5
05Z: 1.2  1.6  3.0  1.0       1.3  1.2
06Z: 2.1  2.0  1.0  1.0  3.2  1.2
07Z: 2.8  2.0       1.6       1.3  1.1
08Z: 3.1  1.7  3.2  1.3  1.3  1.2
09Z:      2.0  3.3  1.3  1.8  1.3
10Z:      2.0       1.0  1.3  1.3
11Z:      1.7  3.5  1.0  1.0  1.6
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  ASH  TOM  DIX  MAG  KHA
     ---  ---  ---  ---  ---  ---
00Z: 4.3  3.9       3.6  5.9
01Z: 4.3  3.5            3.3
02Z:      2.7  3.0       3.4
03Z:      3.1  3.6       3.2
04Z:      3.4  5.6  3.5  3.5
05Z:      4.0  3.8       3.6
06Z:      4.9  3.4       2.9
07Z:      5.7  5.7       3.6  3.5
08Z:      5.8            3.2
09Z:      5.8       3.2  5.4
10Z:      5.6       3.3  2.1
11Z:      3.8
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  ASH  SAL  TOM  DIX  MAG  KHA  JUL  UPS  POI  BOU  OTI  GOO  EIE  TAO  RES  KEA  ARG  BER  NIC  DYS  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:       4.0  3.7  4.1  4.4  4.8       3.1  2.3  4.6  4.9       5.3  4.6  6.4   F        5.5  5.7  4.1  5.3  6.6
01Z:       4.4  4.0  4.8       5.0       2.6  2.0  4.1            3.4  4.6  7.1  4.0       4.9  4.6  3.9  5.1  6.9
02Z:       4.9  4.6  4.6  4.6  5.3       2.2  2.1  3.9            3.1  4.5  6.2  4.0       4.2  4.6  3.7  4.5  5.5
03Z:       5.4  4.8  5.2  4.5  5.7       2.2  3.0  3.2             A   4.7  7.6   F         B   5.0  3.6   A   7.2
04Z:  4.5  5.8  5.0  5.3  4.5  5.5       3.9       2.9             A   4.2  9.6  4.0       3.0  4.4  4.6   A    A
05Z:  4.8  6.0  5.1  5.5       5.5  6.1  5.2  4.7  3.3             A   3.6 10.1   F        2.6  4.1       2.9  7.5
06Z:  5.1  7.0  5.1  5.7  5.0  5.6       5.3       4.5            2.9   A  11.0             B    A         A   7.8
07Z:  5.3  8.1       5.8       6.2  5.9  5.7       5.4             A    A  12.0             B   4.9        A   7.4
08Z:  5.0  9.4  5.3  6.0  4.6  6.0       6.4                       B   3.8 12.6             B   4.1        A   7.4
09Z:       9.0  5.4  5.9  5.2  6.4                                 B    A  14.6             B   3.2       3.1   A
10Z:       8.0       5.7  4.1  7.1                                 B    A  15.2             B   4.5       3.2  4.1
11Z:       6.9  5.1  5.4  4.5  6.4                                 B    A  15.0            4.6  5.0       2.9  3.8
12Z:                                                         4.2   B    A  14.3       4.6  5.2  5.9       3.7  3.4
13Z:                                                         5.0  5.5   A   7.8       4.3  5.7  5.2       4.8  3.5
14Z:                                                         5.0  5.8   B   6.8       4.0   B   6.0       5.2  3.5
15Z:                                                         5.3   A    A   6.8       3.9  5.1  6.7       5.6  3.1
16Z:                                                         5.1  5.3   A   7.2       3.2  5.1  6.5  7.0  5.3  3.3
17Z:                                                         5.4  5.3   B   6.8       4.6  5.1  6.8  8.3  6.7  3.1
18Z:                                                         5.3  5.2   B   6.0            5.2  6.7  8.5  6.4  3.5
19Z:                                                              5.5  3.9  5.8            5.3  7.0   C   6.3  3.3
20Z:                                                              5.8  4.1                 5.6   A   4.5  6.2  3.1
21Z:                                                              5.8  4.0                 6.3   A   4.3  6.0  3.4
22Z:                                                              5.6  4.8  5.6   F        5.8   A   4.1  5.7  5.1
23Z:                                                              3.9  4.7  7.2  4.6       5.8  5.7  4.1  5.8  6.8
=========================================
Estimated Average Global foF2:  5.34 MHz.


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

      MUR  ASH  SAL  TOM  DIX  MAG  KHA  JUL  UPS  BOU  GOO  EIE  TAO  RES  KEA  ARG  BER  NIC  DYS  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:      12.0 11.5 13.1                 9.0  6.2 15.8 15.9 14.7 21.8   F       16.0 17.1 11.9 17.5 23.1
01Z:      12.8 12.0 14.9      14.0       7.0  5.5       9.9 14.3 20.6 12.0      15.2 13.3 11.7 17.3 22.8
02Z:      14.7 13.3 12.9      17.0       6.6  5.7       7.8 13.1 16.7 12.0      12.2 13.8 11.8 15.8 21.5
03Z:      15.7 13.9 14.0      16.5       6.4  8.9        A  13.6 21.3   F         B  13.5 11.2   A  23.0
04Z: 13.5 16.2 14.5 15.9      17.6      12.9             A  11.8 27.8 11.6       9.0 12.8 14.7   A    A
05Z: 14.4 15.6 14.8 17.0      17.6 16.5 17.2 13.4        A   9.7 29.3   F        7.5 12.7       7.8 24.0
06Z:      18.9 13.3 17.7 12.5 16.8      17.5            7.8   A  31.9             B    A         A  26.5
07Z: 15.4 22.7      16.8      18.6 16.5 17.1             A    A  36.0             B  13.7        A  23.7
08Z:      27.3 14.8 18.0      19.2      21.8             B  14.4 37.8             B  12.7        A  23.7
09Z:      27.0 16.2 17.1 14.6 19.2                       B    A  46.7             B   9.3       9.0   A
10Z:      24.0      17.1      22.7                       B    A  48.6             B  14.8       8.6 13.9
11Z:      20.0 15.3 16.7 12.6 19.2                       B    A  51.0           14.7 17.5       8.4 12.9
12Z:                                                     B    A  48.6      13.8 16.1 18.9      11.8  8.5
13Z:                                                   16.0   A  20.3      12.5 19.4 19.8      14.4 10.8
14Z:                                                   18.0   B  18.4      11.2   B  18.0      15.6 10.5
15Z:                                                     A    A  19.0      11.3 16.3 18.1      15.7  9.0
16Z:                                                   15.4   A  20.9       9.0 14.8 20.1 21.0 17.0  9.9
17Z:                                                   15.4   B  21.1      14.7 14.8 20.4 28.2 20.1  9.6
18Z:                                                   14.6   B  18.6           14.6 20.1 29.8 18.6 11.2
19Z:                                                   14.9 12.9 17.4           14.8 21.7   C  18.9  9.2
20Z:                                                   16.8 13.9                16.2   A  14.8 18.0  9.6
21Z:                                                   17.4 14.8                20.2   A  12.5 17.4  9.9
22Z:                                                   16.2 14.4 18.5   F       16.8   A  11.9 18.2 16.8
23Z:                                                   12.9 14.6 23.8 13.8      16.8 14.2 11.9 18.6 23.1
===============================================
Estimated Average Global MUF(3000)F2: 16.10 MHz.


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

      BOU  TAO  ANC  CNV  PAL  SHE  OSA
     ---- ---- ---- ---- ---- ---- ----
00Z:   72  230   83  190  340
01Z:   67  260   80  170  320
02Z:   51  320   79  140  270
03Z:   41  310   81  120  210
04Z:   30  440   87   97  160
05Z:   17  600   97   88  130
06Z:  8.5  700   97   89  110
07Z:  8.4  690  100   83   92
08Z:  4.2  670   96   82   81
09Z:  4.4  690   81        78
10Z:   20  640   70   76   73
11Z:   19  510   47   77
12Z:   19        49  120   71
13Z:   21  270   42  150   63
14Z:   35  220   31  200   57
15Z:   54  190   35  230   52
16Z:   81  200   15  250   50
17Z:  100            280   87
18Z:  110        21  280  110
19Z:  110        23  270  140
20Z:   96        34  250  160
21Z:   86        33  230  250
22Z:   82  200   26  230  290
23Z:   83  250   24  230  320


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)
MAG = Magadan                    USSR                (N60E151)
KHA = Khabarovsk                 USSR                (N48E135)
JUL = Juliusruh/Rugen            Germany             (N54E013)
UPS = Uppsala                    Sweden              (N60E018)
POI = Poitiers                   France              (N46E000)
BOU = Boulder CO                 USA                 (N40W105)
OTI = Ottawa                     Canada              (N45W076)
GOO = Goose Bay                  Canada              (N53W060)
EIE = Eielson AFB AK             USA                 (N64W147)
TAO = Taoyuan                    Taiwan              (N25E121)
RES = Resolute Bay               Canada              (N74W094)
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)
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.


