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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 14 May
To: solar-daily@lut.fi
Date: 	Sun, 16 May 1993 00:20:48 +0300
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                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 14 MAY 93
                    ---------------------------------------


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

     ASH  SAL  DIX  KHA  MAG  TOM  UPS
     ---  ---  ---  ---  ---  ---  ---
00Z: 2.7  2.9       3.0            2.8
01Z: 2.9  3.1       3.1  2.4  3.0  2.8
02Z: 3.1  2.8  2.8  3.1       3.0  2.8
03Z:      3.0  2.7  4.5  2.8  2.9  3.0
04Z: 2.9  2.9  2.8  3.7  2.8  2.9  2.8
05Z: 2.9  3.0  2.8  3.0  2.8  3.1  2.5
06Z: 2.7  3.1       2.9  3.2  3.2
07Z: 2.9  3.0  2.8       3.0  3.1
08Z:      3.1  2.7       3.1  3.1
09Z: 2.6  3.0       3.1  3.0
10Z: 2.7  3.0  2.7  3.1  3.0  2.9
11Z:                3.0  3.0  3.1
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

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


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

     ASH  SAL  DIX  KHA  MAG  TOM
     ---  ---  ---  ---  ---  ---
00Z: 2.1  2.1  5.2  4.0  4.6
01Z: 2.2       5.0  4.8  5.2  3.1
02Z: 4.1       3.7  3.2  4.5  3.7
03Z: 6.8  3.2       3.9  4.2  5.5
04Z: 4.0  3.4       4.3  3.7  3.9
05Z: 4.8  5.2       4.5  3.2  2.9
06Z: 5.3  4.0       4.2
07Z: 4.8  4.0        10
08Z:      4.0        10  2.7
09Z: 4.1            3.2  2.2
10Z: 3.7            4.5
11Z:                     1.2  2.0
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      ASH  SAL  DIX  KHA  MAG  TOM  UPS  POI  OTI
     ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  5.0  5.1       7.0  4.9       3.8  6.0
01Z:  5.6  5.2  5.2  7.0  5.2  6.7  3.5  5.7
02Z:  5.6  5.6  5.8  6.2  5.0  6.8  3.5  5.5
03Z:       6.4  5.8  6.0  5.2  7.1  3.9  4.9
04Z:  6.8  6.5  6.0  6.5  5.3  7.2  4.4  4.3
05Z:  7.9  6.4  6.0  7.0  5.3  7.0  4.8  4.4
06Z:  8.5  6.4       7.0  5.4  7.3
07Z:  7.2  6.4  6.0       5.4  7.2       5.4
08Z:       6.8  5.7       5.9  7.0
09Z:  8.9  6.3       6.7  5.8
10Z:  8.7  6.5  5.7  7.1  6.4  6.4
11Z:                 7.5  6.8  7.0
12Z:                                          4.9
13Z:                                          5.2
14Z:                                          4.5
15Z:                                          5.5
16Z:                                          5.2
17Z:                                          5.5
18Z:                                          5.7
19Z:
20Z:
21Z:
22Z:
23Z:


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

      ASH  SAL  DIX  KHA  MAG  TOM  UPS
     ---- ---- ---- ---- ---- ---- ----
00Z: 13.5 14.8      21.0           10.6
01Z: 16.2 16.1      21.7 12.5 20.1  9.8
02Z: 17.4 15.7 16.2 19.2      20.4 10.0
03Z:      19.2 15.7 27.0 14.6 20.6 11.9
04Z: 19.7 18.9 16.8 24.1 14.8 20.9 12.3
05Z: 22.9 19.2 16.8 21.0 14.8 21.7 11.8
06Z: 23.0 19.8      20.3 17.3 23.4
07Z: 20.9 19.2 16.8      16.2 22.3
08Z:      21.1 15.4      18.3 21.7
09Z: 23.1 18.9      20.8 17.4
10Z: 23.5 19.5 15.4 22.0 19.2 18.6
11Z:                22.5 20.4 21.7
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      PAL  SHE  OSA  TAO  CNV  BOU  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  480            190  350  270  150
01Z:  500            210  290  250  140
02Z:  510            230  210  230  130
03Z:  470            280  150  220  120
04Z:  420            330  150  180  110
05Z:  370            390  150  160  110
06Z:  300            410  140       110
07Z:  230            440  140  160  110
08Z:  210            470  140  160  100
09Z:  190            490  140        70
10Z:  150            520  120  150   44
11Z:  150            390  130  150   39
12Z:  130            250  190  160   38
13Z:  120            230  260  210   44
14Z:  110            250  300  250   55
15Z:  100            170  310  290   82
16Z:  120            180  360  300  130
17Z:  170            130  390  330  160
18Z:  190             54  390  330  180
19Z:  240             46  380  300  190
20Z:  300             45  370  300  190
21Z:  350             77  360  300  190
22Z:  410            160  350  290  170
23Z:  450            180  350  270  170


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

ASH = Ashkhabad                  USSR                (N37E058)
SAL = Salekhard                  USSR                (N66E066)
DIX = Dixon                      USSR                (N74E081)
KHA = Khabarovsk                 USSR                (N48E135)
MAG = Magadan                    USSR                (N60E151)
TOM = Tomsk                      USSR                (N56E085)
UPS = Uppsala                    Sweden              (N60E018)
POI = Poitiers                   France              (N46E000)
OTI = Ottawa                     Canada              (N45W076)
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.


