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From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9310210556.AA28240@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 20 October
To: solar-daily@lut.fi
Date: Wed, 20 Oct 93 23:56:18 MDT
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Status: RO

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 20 OCT 93
                    ---------------------------------------


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

     MUR  SAL  DIX  ASH  SVE  TOM  KHA  MAG  JUL  UPS
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z:      2.8       2.7  2.4  3.1       3.4  2.9
01Z:      2.8       2.8       3.4       3.4  3.0  2.8
02Z: 3.1            3.0  2.5  3.5       3.3  3.0
03Z: 3.1  3.3  3.2  3.2  2.9  3.7       3.3  2.9  2.9
04Z: 3.1  3.4  3.3                      3.4  2.9
05Z: 3.1  3.2  3.3  3.1       3.2  3.3  3.5  3.0  3.2
06Z: 3.4  3.3  3.3            3.4  3.2  3.4  3.5
07Z: 3.5  3.3       2.9  3.0  3.3  3.5  3.2  3.6
08Z: 3.5  3.3       3.0       3.4  3.4  3.2  3.2
09Z: 3.3  3.4  3.4  2.7       3.3  3.3  3.2
10Z: 3.3  3.4       2.7  3.0  3.5       3.2
11Z: 3.3  3.4  3.3  3.2       3.4  3.1  3.1
12Z: 3.3  3.4  3.3       3.2       3.1
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:
=========================================
Estimated Average Global M(3000)F2:  3.19.


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

     MUR  SAL  DIX  ASH  SVE  TOM  KHA  MAG
     ---  ---  ---  ---  ---  ---  ---  ---
00Z: 1.0  1.6  1.6  1.8  1.8  1.2       1.0
01Z: 1.0  1.0       1.8  1.7  1.5       1.2
02Z: 1.0            1.8  1.5  1.3       1.2
03Z: 1.0  1.0  1.6  1.8  1.8  1.0       1.2
04Z: 1.0  1.0  2.0            1.2       1.2
05Z: 1.5  1.0  3.0  2.0       1.4  1.3  1.0
06Z: 2.0  1.0  2.8       1.6  1.5  1.1  1.0
07Z: 3.5  1.0  2.6  2.0  1.5  1.4  1.3  1.0
08Z: 2.4  1.0  3.0  2.0  1.6  1.4  1.2  1.0
09Z: 2.7  1.0  1.6  2.0       1.4  1.5  1.0
10Z: 4.0  1.0       2.0  1.6  1.2       1.0
11Z: 2.9  1.0  1.8  2.0  1.6  1.3  1.1  1.2
12Z: 1.4  1.0  1.6       1.0       1.2
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  SAL  DIX  ASH  SVE  TOM  KHA  MAG
     ---  ---  ---  ---  ---  ---  ---  ---
00Z: 3.5       3.8                      2.8
01Z: 4.2  2.5                           2.7
02Z:                                    3.0
03Z: 3.0       2.4                      2.6
04Z:                                    3.2
05Z:
06Z:                     2.9       2.8  1.3
07Z:                5.5  3.0       3.1
08Z:                4.0  3.0       3.2
09Z:           2.1  3.8            1.9
10Z:                3.0       1.9
11Z:                               3.0
12Z:                     3.0       1.9
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  SAL  DIX  ASH  SVE  TOM  KHA  MAG  JUL  UPS  POI  WAR
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:       2.7       3.7  3.3  3.2       4.8  3.2       3.8  3.6
01Z:       2.4       3.6  4.0  4.4       5.1  3.2  2.6  3.8  3.5
02Z:  2.5            4.0  4.0  6.9       4.9  3.2       3.9   C
03Z:  2.5  4.0  4.8  6.6  5.0  7.3       5.3  3.2  2.5  3.9  3.1
04Z:  2.8  6.0  5.5                      5.4  2.6       3.8   C
05Z:  3.2  6.5  6.2  9.4       8.8  6.8  5.4  2.4  2.1  3.1   C
06Z:  5.3  7.4  6.3       6.6  8.8  7.2  5.5  4.3       3.1  4.9
07Z:  7.5  7.8      11.0  7.9  9.0  8.0  4.5  5.4       5.0  5.8
08Z:  6.9  8.3      10.2  7.8  8.4  6.7  4.0  5.8            6.4
09Z:  7.0  8.2  6.5 10.4       7.8  6.3  3.8
10Z:  7.3  7.1      10.2  8.2  8.1       3.3
11Z:  7.2  7.0  6.0  8.8  7.0  6.6  5.6  3.0
12Z:  6.9  6.1  5.4       7.0       5.0
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:
=========================================
Estimated Average Global foF2:  5.57 MHz.


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

      MUR  SAL  DIX  ASH  SVE  TOM  KHA  MAG  JUL  UPS
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:       7.6      10.0  7.9  9.9      16.3  9.3
01Z:       6.7      10.1      15.0      17.3  9.6  7.3
02Z:  7.8           12.0 10.0 24.1      16.2  9.6
03Z:  7.8 13.2 15.4 21.1 14.5 27.0      17.5  9.3  7.2
04Z:  8.7 20.4 18.1                     18.4  7.5
05Z:  9.9 20.8 20.5 29.1      28.2 22.4 18.9  7.2  6.6
06Z: 18.0 24.4 20.8           29.9 23.0 18.7 15.1
07Z: 26.2 25.7      31.9 23.7 29.7 28.0 14.4 19.4
08Z: 24.1 27.4      30.6      28.6 22.8 12.8 18.6
09Z: 23.1 27.9 22.1 28.1      25.7 20.8 12.2
10Z: 24.1 24.1      27.5 24.6 28.4      10.6
11Z: 23.8 23.8 19.8 28.2      22.4 17.4  9.3
12Z: 22.8 20.7 17.8      22.4      15.5
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:
===============================================
Estimated Average Global MUF(3000)F2: 17.77 MHz.


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

NO TEC DATA PRESENTLY AVAILABLE


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

MUR = Murmansk                   USSR                (N68E033)
SAL = Salekhard                  USSR                (N66E066)
DIX = Dixon                      USSR                (N74E081)
ASH = Ashkhabad                  USSR                (N37E058)
SVE = Sverdlovsk                 USSR                (N56E061)
TOM = Tomsk                      USSR                (N56E085)
KHA = Khabarovsk                 USSR                (N48E135)
MAG = Magadan                    USSR                (N60E151)
JUL = Juliusruh/Rugen            Germany             (N54E013)
UPS = Uppsala                    Sweden              (N60E018)
POI = Poitiers                   France              (N46E000)
WAR = Warsaw                     Poland              (N52W021)


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.


