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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 05 December
To: solar-daily@lut.fi
Date: Mon, 6 Dec 93 11:17:20 MST
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Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
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Status: RO

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 05 DEC 93
                    ---------------------------------------


REPORTS OF IONOSPHERIC ABSORPTION
---------------------------------

DIX: Type of Measurement = Riometer.
     Type of Phenomenon  = Auroral Absorption.
     Start of Event: 0230Z
     Event Maximum : 0305Z,  Maximum Absorption: 1 dB
     End of Event  : 0500Z


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

     MUR  ASH  SVE  SAL  TOM  DIX  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z: 2.9  2.9       3.1  2.8       3.6
01Z: 2.8  3.1  2.8  3.1  2.9       3.7
02Z: 2.8       3.0  3.0  3.4       3.6
03Z: 3.1  3.3  2.8  3.3  3.4       3.6
04Z: 3.1  3.3       3.2  3.5       3.6
05Z: 3.1  3.3  3.3  3.4  3.3  3.2  3.6
06Z: 3.1  3.3  3.3  3.4       3.5  3.2
07Z:
08Z:
09Z:
10Z:
11Z:
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:
=========================================
Estimated Average Global M(3000)F2:  3.22.


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

     MUR  ASH  SVE  SAL  TOM  DIX  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z: 1.0  1.5  1.0  1.0  1.0  1.0  1.6
01Z: 1.4  1.7  1.6  1.6  1.3  1.0  2.1
02Z: 1.0  1.4  1.6  1.0  1.3  1.1  2.1
03Z: 1.0  1.6  2.0  1.0  1.3       2.1
04Z: 1.0  1.3  1.8  1.0  2.0       2.0
05Z: 1.0  1.4  1.0  1.0  1.8  2.2  1.2
06Z: 1.3  2.0  1.0  1.0       1.1  1.0
07Z:
08Z:
09Z:
10Z:
11Z:
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  ASH  SVE  TOM  DIX  MAG
     ---  ---  ---  ---  ---  ---
00Z: 1.9                 3.2  2.1
01Z:                     2.5
02Z:                     2.1
03Z:                1.9
04Z:      3.1
05Z:      3.2  2.0            2.0
06Z:      3.2  2.3            2.0
07Z:
08Z:
09Z:
10Z:
11Z:
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  ASH  SVE  SAL  TOM  DIX  MAG
     ---- ---- ---- ---- ---- ---- ----
00Z:  2.8  3.5  2.3  2.8  2.8       6.5
01Z:  2.4  3.4  2.2  2.6  2.7       7.0
02Z:  2.3       2.2  2.3  3.5       7.6
03Z:  2.0  4.0  3.0  2.0  5.6       7.4
04Z:  2.0  6.3  3.3  2.9  6.4       6.4
05Z:  1.8  6.5  5.5  4.6  7.8  3.1  5.6
06Z:  2.0  7.5  6.5  5.5       3.5  4.4
07Z:
08Z:
09Z:
10Z:
11Z:
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:
=========================================
Estimated Average Global foF2:  4.15 MHz.


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

      MUR  ASH  SVE  SAL  TOM  DIX  MAG
     ---- ---- ---- ---- ---- ---- ----
00Z:  8.1 10.2       8.7  7.8      23.4
01Z:  6.7 10.5  6.2  8.1  7.8      25.9
02Z:  6.4       6.6  6.9 11.9      27.4
03Z:  6.2 13.2  8.4  6.6 19.0      26.6
04Z:  6.2 20.8       9.3 22.4      23.0
05Z:  5.6 21.4 18.1 15.6 25.7  9.9 20.2
06Z:  6.2 24.8 21.4 18.7      12.2 14.1
07Z:
08Z:
09Z:
10Z:
11Z:
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:
===============================================
Estimated Average Global MUF(3000)F2: 13.37 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)
ASH = Ashkhabad                  USSR                (N37E058)
SVE = Sverdlovsk                 USSR                (N56E061)
SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
DIX = Dixon                      USSR                (N74E081)
MAG = Magadan                    USSR                (N60E151)


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.


