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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 03 May
To: solar-daily@lut.fi
Date: Tue, 4 May 93 0:27:36 MDT
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                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 03 MAY 93
                    ---------------------------------------


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

     UPS
     ---
00Z:
01Z:
02Z: 2.6
03Z: 2.8
04Z: 2.5
05Z: 2.7
06Z:
07Z:
08Z:
09Z:
10Z:
11Z:
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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)
--------------------------------------------

      UPS  POI  OTI
     ---- ---- ----
00Z:  4.4  6.0
01Z:  4.2  6.1
02Z:  3.5  5.6
03Z:  3.5  5.3
04Z:  3.9  5.1
05Z:  4.4  4.7
06Z:       5.1
07Z:       5.9
08Z:
09Z:
10Z:
11Z:
12Z:            4.6
13Z:            4.9
14Z:            5.4
15Z:            5.2
16Z:            5.0
17Z:            5.3
18Z:            5.3
19Z:
20Z:
21Z:
22Z:
23Z:


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

      UPS
     ----
00Z:
01Z:
02Z:  9.1
03Z:  9.8
04Z:  9.9
05Z: 11.7
06Z:
07Z:
08Z:
09Z:
10Z:
11Z:
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:  510  120       280  300  270  150
01Z:  520  120       350  260  250  140
02Z:  520            410  220  240  120
03Z:  450            520  170  220  120
04Z:  410            620  160       110
05Z:  360  150       680  160  170  110
06Z:  270   66       730  150  160  110
07Z:  200   67       790  150  160  100
08Z:  150  150       880  150  160  100
09Z:  120  150       870  140  160   96
10Z:  110   69            150  170   87
11Z:  100   15            150        65
12Z:   90   42       570  200  170   58
13Z:   69            510  250  240   67
14Z:   69                 300  310   62
15Z:   72                 350  340   93
16Z:   80                 370       130
17Z:  140            450  390  380  160
18Z:  180            280  390  380  170
19Z:  220  160       150  350  380  180
20Z:  270  150        43  330  370  180
21Z:  350  160        52  310  360  170
22Z:  400  170       160  300  330  160
23Z:  460  170       230  290  300  140


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

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.


