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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 08 May
To: solar-daily@lut.fi
Date: Sun, 9 May 93 16:19:07 MDT
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                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 08 MAY 93
                    ---------------------------------------


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

     MAG  ASH  SAL  TOM  KHA
     ---  ---  ---  ---  ---
00Z:                     3.1
01Z:      2.7       3.2  2.5
02Z: 2.4  2.7            2.3
03Z:      3.1            3.0
04Z:      2.5       2.7  2.9
05Z:                2.6  3.1
06Z:      2.8
07Z:                     3.2
08Z:           3.0       3.0
09Z:
10Z:                     2.6
11Z:                     2.7
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

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


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

     DIX  MAG  ASH  SAL  KHA
     ---  ---  ---  ---  ---
00Z:      3.3            4.9
01Z:      3.3  2.8       3.8
02Z:      3.3  2.9       3.7
03Z: 3.5       3.9
04Z:           4.2       3.8
05Z:                     3.8
06Z:           3.6
07Z:                     4.0
08Z:                3.7
09Z: 3.8
10Z:                     2.0
11Z: 4.2
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  DIX  MAG  ASH  SAL  TOM  KHA
     ---- ---- ---- ---- ---- ---- ----
00Z:            5.1                 6.3
01Z:            5.2  4.4       4.4  6.1
02Z:            5.7  5.2            5.9
03Z:                 7.5            7.7
04Z:                 6.4       5.2  6.9
05Z:       4.9                 5.0  7.0
06Z:                 7.5
07Z:                                6.3
08Z:                      4.5       6.5
09Z:
10Z:  4.8                           7.2
11Z:  5.0                           8.4
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MAG  ASH  SAL  TOM  KHA
     ---- ---- ---- ---- ----
00Z:                     19.5
01Z:      11.9      14.1 15.2
02Z: 13.7 14.0           13.6
03Z:      23.2           23.1
04Z:      16.0      14.0 20.0
05Z:                13.0 21.7
06Z:      21.0
07Z:                     20.2
08Z:           13.5      19.5
09Z:
10Z:                     18.7
11Z:                     22.7
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:  470  180       180  320       170
01Z:  490  130       240  320  270  190
02Z:  480  110       320  340  280  190
03Z:  490  190            340  270  200
04Z:  460  110       460  330  220  130
05Z:  370  200       450  290  180  130
06Z:  150  130       410  220  150  120
07Z:   94  110            180  140  110
08Z:   71                 150  140   59
09Z:   68  130            130  140   87
10Z:   74  110            120  150   59
11Z:   70  100            130  160   55
12Z:   66  110       330  140  160   61
13Z:   53  120       260  130  170   60
14Z:   40  120       230  140  180   64
15Z:   41  120       180  160  200   83
16Z:   74  120       190  170  210  100
17Z:  160  110       230  140  230  140
18Z:                 160       220  140
19Z:                 120       240
20Z:                  90       240
21Z:                  92       230
22Z:  520  170       120  190  240
23Z:  420   79       180  190  220  130


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

MUR = Murmansk                   USSR                (N68E033)
DIX = Dixon                      USSR                (N74E081)
MAG = Magadan                    USSR                (N60E151)
ASH = Ashkhabad                  USSR                (N37E058)
SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
KHA = Khabarovsk                 USSR                (N48E135)
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.


