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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 01 October
To: solar-daily@lut.fi
Date: Sat, 2 Oct 93 12:36:24 MDT
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                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 01 OCT 93
                    ---------------------------------------


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

     SVE  SAL  TOM  DIX  KHA  MAG  JUL  UPS
     ---  ---  ---  ---  ---  ---  ---  ---
00Z:                          3.2  2.6  2.7
01Z:           3.0       3.0  3.2  2.6
02Z:           2.8       3.3  3.4  2.7
03Z: 2.9                 3.3  3.0   E   2.7
04Z:           2.8       3.1  3.4   E   2.7
05Z:      2.5  3.0       3.3  3.4  3.2  3.0
06Z:      2.7  3.1  2.8  3.3       3.4
07Z:           3.4       3.3       2.9
08Z: 3.0  2.7  3.3  2.7  3.4  3.2
09Z: 2.9  2.7  3.3  2.9  3.1  3.0
10Z: 2.9       3.5  2.9  3.0  3.2
11Z: 2.9       3.2  3.1       3.0
12Z: 3.0       3.1       2.7  2.6
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:
=========================================
Estimated Average Global M(3000)F2:  3.01.


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

     MUR  SVE  SAL  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z:                               1.0
01Z:                1.0       1.4  1.0
02Z:                1.0       1.5  1.1
03Z:      1.0                 1.8  1.0
04Z:      1.0  2.3  1.3       1.4  1.0
05Z: 2.3       1.0  1.8       1.6  1.0
06Z:           1.0  1.8  3.3  1.4
07Z:                2.0       1.3
08Z:      1.0  1.0  1.8  1.3  1.3  1.0
09Z:      1.8  3.0  1.8  3.8  1.3  1.0
10Z:      1.0       1.0  2.0  1.4  1.0
11Z:      1.6       1.0  1.8       1.0
12Z: 3.0  1.6       1.5  1.8  1.2  1.0
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  SVE  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---
00Z:                          2.7
01Z:                     3.2  2.7
02Z:           1.7       3.5  3.0
03Z:                     3.5  3.8
04Z:      2.6  2.6       3.5  2.9
05Z: 5.0       2.7       3.3  2.8
06Z:           2.6       3.0
07Z:           2.8
08Z:      4.3  2.0  2.6  2.2
09Z:      3.2            3.0
10Z:      4.0  1.4  2.4  5.2
11Z:      3.2  1.6  2.2
12Z:                2.2  3.9
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      SVE  SAL  TOM  DIX  KHA  MAG  JUL  UPS  POI
     ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:                           4.7  2.4  2.3  2.7
01Z:            3.3       6.3  5.3  2.4  2.4  2.9
02Z:            3.9       6.6  5.1  2.2  2.2  3.1
03Z:  3.3                 6.9  5.3   F   2.5  2.9
04Z:  4.0  3.7  4.7       7.3  5.4   F   2.2  3.0
05Z:       3.9  5.3       6.7  5.3  3.0  2.8  2.8
06Z:       4.1  5.5  4.2  6.2       3.7       3.3
07Z:            6.1       6.3       4.2       3.8
08Z:  5.3 14.0  6.0  3.8  6.1  4.1  4.0
09Z:  5.2 14.3  6.0  4.6  4.4  4.1
10Z:  6.0       6.2  3.4  4.6  4.0
11Z:  5.8       6.0  3.8       3.1
12Z:  6.0       5.5       4.7  2.9
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:
=========================================
Estimated Average Global foF2:  4.65 MHz.


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

      SVE  SAL  TOM  DIX  KHA  MAG  JUL  UPS
     ---- ---- ---- ---- ---- ---- ---- ----
00Z:                          15.0  6.2  6.1
01Z:            9.9      18.9 17.0  6.2
02Z:           10.9      21.8 17.3  5.9
03Z:  9.6                22.8 15.9   F   6.6
04Z:           13.2      22.6 18.4   F   5.8
05Z:       9.8 15.9      22.1 18.0  9.6  8.4
06Z:      11.1 17.0 11.8 20.5      12.6
07Z:           20.7      20.8      12.2
08Z: 15.9 37.8 19.8 10.3 20.7 13.1
09Z: 15.1 38.6 19.8 13.3 13.6 12.3
10Z: 17.4      21.7  9.9 13.8 12.8
11Z: 16.8      19.2 11.8       9.3
12Z: 18.0      17.0      12.7  7.5
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:
===============================================
Estimated Average Global MUF(3000)F2: 14.02 MHz.


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

      PAL  SHE  OSA  TAO  CNV  BOU  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  630            240  190  240  260
01Z:  630            300  140  210  250
02Z:  590            470  110  150  230
03Z:  380            820  110  130  220
04Z:  230            950  110       190
05Z:  160            860  100  110  160
06Z:  110            710  100  110  180
07Z:   73                 110  110  160
08Z:   62                 100  110  150
09Z:   57                  82   94  140
10Z:   54                  86   86  140
11Z:   45                  92   82  140
12Z:   47                 140   81  140
13Z:   41                 200   89  130
14Z:   43                      120  130
15Z:   49                      140  130
16Z:   40                      160  140
17Z:   83                      160  160
18Z:  170                      170  170
19Z:  260                 270  200  190
20Z:  370                 280  240  200
21Z:  450            120       230  250
22Z:  500            180            250
23Z:  460            220       220  230


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

MUR = Murmansk                   USSR                (N68E033)
SVE = Sverdlovsk                 USSR                (N56E061)
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)
UPS = Uppsala                    Sweden              (N60E018)
POI = Poitiers                   France              (N46E000)
PAL = Palehua HI                 USA                 (N21W158)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)
TAO = Taoyuan                    Taiwan              (N25E121)
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.


