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From: oler@rho.uleth.ca (Cary Oler)
Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
Message-Id: <9302280455.AA01272@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 25 February
Date: Sat, 27 Feb 93 21:55:05 MST
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Status: OR

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 25 FEB 93
                    ---------------------------------------


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

     BOU  UPS
     ---  ---
00Z: 3.3  2.8
01Z: 3.2  2.8
02Z: 3.2
03Z: 3.2
04Z: 3.2
05Z: 3.0  2.8
06Z: 3.0
07Z: 3.0
08Z: 3.0
09Z: 2.9
10Z: 2.9
11Z: 3.0
12Z: 3.0
13Z: 3.0
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      BOU  UPS  POI  OTI
     ---- ---- ---- ----
00Z:  8.5  2.2  4.0
01Z:  7.4  2.1  4.2
02Z:  6.3       4.2
03Z:  5.6       4.1
04Z:  4.4       4.3
05Z:  4.3  2.0  4.3
06Z:  4.0  4.1  3.6
07Z:  3.9  5.5  5.9
08Z:  4.0  7.1  7.5
09Z:  4.0  7.6  7.9
10Z:  4.0  8.1  9.4
11Z:  4.0  8.2  9.1
12Z:  3.7  8.5  9.6
13Z:  3.8  8.0  9.8  7.3
14Z:  5.8  8.1 10.3  8.1
15Z:  7.1  8.2 10.3  8.2
16Z:  8.7  8.5  9.6
17Z:  8.4  7.3  9.0
18Z:  9.7  5.7  7.7
19Z: 10.0       6.7 10.4
20Z: 10.1  3.1  5.9
21Z:  9.6  3.0  5.0  9.0
22Z:  9.3  2.4  4.2
23Z:  8.7  2.3  4.5


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

      BOU  UPS
     ---- ----
00Z: 28.5  6.3
01Z: 23.7  5.8
02Z: 19.8
03Z: 17.9
04Z: 13.9
05Z: 13.1  5.6
06Z: 12.2
07Z: 11.7
08Z: 11.8
09Z: 11.6
10Z: 11.6
11Z: 12.0
12Z: 11.1
13Z: 11.4
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

NO DATA PRESENTLY AVAILABLE


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

BOU = Boulder CO                 USA                 (N40W105)
UPS = Uppsala                    Sweden              (N60E018)
POI = Poitiers                   France              (N46E000)
OTI = Ottawa                     Canada              (N45W076)


DESCRIPTIVE CODES WHICH MAY APPEAR IN THE FOF2 AND M(3000) 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


     TEC values in this experimental daily report have not been checked
     for errors and may occasionally contain a few.  Total electron
     content values

