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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 27 May
To: solar-daily@lut.fi
Date: Thu, 27 May 93 21:53:51 MDT
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                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 27 MAY 93
                    ---------------------------------------


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

NO M(3000)F2 DATA PRESENTLY AVAILABLE


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

NO FMIN DATA PRESENTLY AVAILABLE


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

NO CRITICAL SPORADIC E-LAYER DATA PRESENTLY AVAILABLE


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

NO CRITICAL F2-LAYER DATA PRESENTLY AVAILABLE


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

NO MUF(3000)F2 DATA PRESENTLY AVAILABLE


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

      PAL  SHE  OSA  TAO  CNV  BOU  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  490  180       260        63  340
01Z:  540            320  290   59  340
02Z:  570  200       370  240   58  330
03Z:  560  200       430  210       330
04Z:  500  240       510  200   30  330
05Z:  470  240       600  180   37  340
06Z:  310  210       670  180   27  370
07Z:  360  190       790  170   25  390
08Z:  320  170       770  170   25  380
09Z:  250  180       720  180   29  370
10Z:  210  200       700  190   30  330
11Z:  190  240            180       290
12Z:  150  260            200   46  280
13Z:  110  260       380  250       280
14Z:   85  240       180  300       280
15Z:   44  240       160  370  190  300
16Z:   79  230            430  220  330
17Z:  110  190       220  430  200  360
18Z:  140  190       140  370  170  360
19Z:  150  180       120  310  150  370
20Z:  160  160       130  280  150  360
21Z:  200  200       170  260  150  360
22Z:  250  210       240  280       360
23Z:  280  220       320  290       360


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

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.


