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From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9308010038.AA29821@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 23 July
To: solar-daily@lut.fi
Date: Sat, 31 Jul 93 18:38:11 MDT
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Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
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Status: OR

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 23 JUL 93
                    ---------------------------------------


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

     BOU  MUR  ASH  SAL  TOM  DIX  KHA  MAG  JUL  UPS  MAU  VBG  GOO  TAO  RES  CHU  KEA  RAM  ARG
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 3.2                           3.1       2.8  2.8  2.5  3.0  2.9  3.0   F        2.5  3.3  3.3
01Z:           2.7  2.9  3.2       3.1       2.8  3.0  2.6  3.3  3.0  3.0   F        2.6  3.0  3.1
02Z:      3.3  2.8  3.0  3.0                 2.7  2.9  3.0  3.4  2.9  3.3   F        3.1  3.0  3.0
03Z:           2.9  2.6                      2.7  2.8  3.1  3.1  2.9  3.0   F        3.1  2.8  3.0
04Z:           3.0  3.0            2.7       3.1  2.9  3.1  3.3  2.5  2.9  3.0       3.1  2.7   B
05Z:           2.9  2.9  3.0       2.9       2.7  2.8  3.0  2.9  3.0  2.9  3.2       3.1  2.8  3.2
06Z:      3.1  2.9  2.9            2.8       2.9       3.2  3.1  3.0  2.7            3.2  2.9  2.7
07Z:      2.6  2.8       3.2       3.0  2.8  2.9       2.8  3.1  2.6  2.9            2.9  3.0   B
08Z:      2.8       2.9  3.3       3.0  2.8  2.7       2.9  3.2  3.2  3.2            2.9  2.9  3.2
09Z:      2.8  3.0  2.9  3.0            3.0            3.0  3.3  3.1  3.4            3.0  3.0  3.2
10Z:      2.6  3.0  3.1                 3.1            2.9  3.0  3.2  3.0            2.9  3.1  3.5
11Z:      2.8  2.6  3.0  3.1  2.8       3.0            2.8  3.0  3.1   R             2.9  3.7   A
12Z:      2.8  3.3  3.0  3.2  2.8                      3.0  3.6  2.8   R             3.1  3.1   B
13Z:      2.9  3.2  3.2  3.0  2.9       3.0            3.2  3.8  3.2   R         R   3.2  3.1   A
14Z:      3.1  2.9  3.1  3.1  3.2       3.0            3.2  3.5  3.6   F        2.5  3.2  2.9   A
15Z:      3.1  3.0       3.0  3.1       3.0            2.9  3.1  3.8   F         R   2.9  2.9   B
16Z:      3.1  2.9  3.3  3.1  3.1       3.0            3.5  3.1  3.1   F        2.8  3.5  2.7   B
17Z:      3.1  2.6  3.1  2.9  2.9       2.9            3.2  2.8  2.9  3.3       2.8  3.2  3.3   B
18Z:      3.1       3.1       3.1                           2.9  3.5   A         F        2.6  3.1
19Z:                                                        3.0  3.3   I        2.7       2.9   A
20Z:                                                        3.0  3.0   I        2.8       3.0  3.0
21Z:                                                        2.9  2.9  3.1   F             2.8  3.0
22Z:                                                        3.1  3.0  3.3   F             3.0  3.1
23Z:                                                        3.0  3.1  3.4   F             3.2  2.8
=========================================
Estimated Average Global M(3000)F2:  3.01.


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

     MUR  ASH  SAL  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z:                          1.2
01Z:      1.6  1.0  1.0       1.3  1.0
02Z: 1.0  1.5  1.0  1.2            1.0
03Z:      1.8  1.0  1.0            1.0
04Z: 2.9  2.0  1.0  1.1       1.2  1.0
05Z: 1.0  2.0  1.0  1.0       1.3  1.0
06Z: 1.5  2.0  1.0  1.0  1.6  1.1  1.0
07Z: 1.5  2.2  1.0  1.7  1.5  1.2  1.0
08Z: 1.0  2.2  1.0  1.6  1.6  1.1  1.0
09Z: 1.2  2.1  1.0  1.0  1.2  1.0  1.0
10Z: 3.5  2.0  1.0       1.0       1.0
11Z: 1.0  1.7  1.0  1.0  1.2       1.0
12Z: 1.0  1.7  1.0  1.0  1.0
13Z: 1.0  2.0  1.0  1.0  1.0       1.0
14Z: 1.3  1.6  1.0  1.0  1.0       1.0
15Z: 2.8  1.6  1.0  1.0  1.0       1.0
16Z: 2.8  1.4  1.0  1.0  1.4       1.0
17Z: 1.0  1.6  1.0  1.0  1.6       1.0
18Z: 2.1       1.0       1.8
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  ASH  SAL  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z:                          5.5
01Z:           2.6  3.1       4.9  5.3
02Z:      2.4  2.7  6.0            3.8
03Z:      4.7       6.1            3.4
04Z:       10       8.8       4.1  3.6
05Z:      5.0  3.7  8.5       5.5  4.1
06Z:      8.6  3.7   13       4.8  4.2
07Z:      8.8  3.9  7.0       3.1  4.6
08Z:       12  3.6  7.0       5.3  4.9
09Z:      9.6  4.1  5.6       9.9  3.1
10Z:      5.5
11Z:      5.4  4.0  5.3            3.2
12Z:      4.8  3.6  3.3  4.2
13Z:      4.6       4.7  3.0
14Z:      5.2       5.4            2.0
15Z:      6.2  4.0  5.3  3.0
16Z:      4.0  5.0  5.2  3.8
17Z: 4.5  4.0  4.0  6.7  3.0       1.4
18Z:                     2.8
19Z:
20Z:
21Z:
22Z:
23Z:


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

      BOU  MUR  ASH  SAL  TOM  DIX  KHA  MAG  JUL  UPS  WAR  POI  OTI  MAU  VBG  GOO  TAO  RES  CHU  KEA  RAM  ARG
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  5.9                           6.3       5.3  4.5   B   6.0       8.0  6.7  6.5  7.0   F        8.0  5.6  5.8
01Z:            4.7  4.9  5.3       6.3       4.6  4.1  4.6  5.7       8.8  7.3  5.3  6.6   F        8.8  6.0  5.3
02Z:       4.5  5.4  5.2  5.5            4.7  4.0  4.1   B   5.1      10.1  6.8  4.5  7.5   F       10.1  3.3  5.6
03Z:            6.8  5.0                 5.1  4.3  3.9   B   5.1       9.4  6.4  4.0  6.7   F        9.4  5.8  5.0
04Z:       4.8  7.5  5.6            6.0  5.1  5.0  4.8   B   4.2       8.3  6.4  3.8  6.6  5.2       8.3  5.4   B
05Z:       5.3  7.3  5.5  5.8       6.2  4.9  5.1  4.5  5.1  4.4       7.8  5.1  3.9  8.0  5.1       7.8  5.5  4.1
06Z:       6.0  7.9  5.6       5.5  6.2  4.8  5.2       5.6  5.5       7.4  5.3  2.9  9.2            7.4  5.3  4.5
07Z:       5.4  7.6       6.5  5.0  6.2  5.1  5.4       6.1  6.4       6.6  5.0  2.9 10.0            6.6  5.3   B
08Z:       5.8       5.6  6.0  5.5  6.0  5.4  6.2                      6.8  4.9  3.4 11.0            6.8  3.9  3.7
09Z:       6.0  8.4  5.6  6.1  5.4       5.7                           6.3  4.9  4.1 11.2            6.3  3.7  4.0
10Z:       5.5  8.4  5.7       5.2       5.7                           6.2  6.4  4.4  9.8            6.2  4.1  4.3
11Z:       5.8  7.5  5.5  6.2  5.5       5.7                           6.4  4.6  4.9   R             6.4  4.5   A
12Z:       5.6  6.9  5.5  5.9  5.5                                4.6  6.5  4.2  5.3   R             6.5  5.2   B
13Z:       5.7  7.0  5.3  6.0  5.2       6.0                           6.1  5.0  5.3   R         R   6.1  5.4   A
14Z:  5.4  5.8  6.2  5.6  6.0  5.5       5.7                      5.3  4.9  6.7  5.2   F        4.6  4.9  6.0   A
15Z:  5.9  5.3  6.4       6.0  5.2       5.0                      5.2  3.8  6.1  5.2   F         R   3.8  5.8   B
16Z:  5.9  5.2  7.0  5.4  6.3  5.0       4.3                      5.4  4.3  6.5  5.6   F        5.1  4.3  5.9   B
17Z:  5.7  5.3  7.2  5.6  6.2  4.8       4.1                      5.6  5.4  6.4  5.5  5.0       5.3  5.4  5.7   B
18Z:  6.0  5.0       5.3       4.8                                5.4  5.9  7.2  5.2   A        5.4       5.8  5.7
19Z:   A                                                          5.3  6.3  7.1  5.3   I        5.3       5.8   A
20Z:  5.8                                                         5.2  6.1  7.1  5.3   I        5.2       5.5  5.7
21Z:  5.5                                                         5.3  6.4  7.0  5.5  3.9   F             5.5  5.7
22Z:  5.5                                                              8.3  6.7  5.9  6.0   F             5.9  5.7
23Z:  5.4                                                              9.2  6.8  5.8  6.5   F             6.0  5.8
=========================================
Estimated Average Global foF2:  5.79 MHz.


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

      BOU  MUR  ASH  SAL  TOM  DIX  KHA  MAG  JUL  UPS  MAU  VBG  GOO  TAO  RES  CHU  KEA  RAM  ARG
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 18.6                          19.5      14.8 12.8 20.0 20.1 18.9 21.0   F       20.0 18.5 19.1
01Z:           12.7 14.2 17.0      19.5      12.9 12.3 22.9 24.1 15.9 19.8   F       22.9 18.0 16.4
02Z:      14.8 15.1 15.6 16.5                10.8 11.9 30.8 23.1 13.1 24.8   F       31.3  9.9 16.8
03Z:           19.7 13.0                     11.6 10.9 29.1 19.8 11.6 20.1   F       29.1 16.2 15.0
04Z:           22.5 16.8           16.2      15.5 13.9 25.7 21.1  9.5 19.1 15.6      25.7 14.6   B
05Z:           21.2 16.0 17.4      18.0      13.8 12.4 23.8 14.8 11.7 23.2 16.3      24.2 15.4 13.1
06Z:      18.6 22.9 16.2           17.4      15.1      23.3 16.4  8.7 24.8           23.7 15.4 12.2
07Z:      14.0 21.3      20.8      18.6 14.3 15.7      18.8 15.5  7.5 29.0           19.1 15.9   B
08Z:      16.2      16.2 19.8      18.0 15.1 16.7      19.7 15.7 10.9 35.2           19.7 11.3 11.8
09Z:      16.8 25.2 16.2 18.3           17.1           18.9 16.2 12.7 38.1           18.9 11.1 12.8
10Z:      14.3 25.2 17.7                17.7           18.0 19.2 14.1 29.4           18.0 12.7 15.1
11Z:      16.2 19.5 16.5 19.2 15.4      17.1           18.2 13.8 15.2   R            18.6 16.6   A
12Z:      15.7 22.8 16.5 18.9 15.4                     19.8 15.1 14.8   R            20.1 16.1   B
13Z:      16.5 22.4 17.0 18.0 15.1      18.0           19.5 19.0 17.0   R         R  19.5 16.7   A
14Z:      18.0 18.0 17.4 18.6 17.6      17.1           15.7 23.4 18.7   F       11.5 15.7 17.4   A
15Z:      16.4 19.2      18.0 16.1      15.0           11.0 18.9 19.8   F         R  11.0 16.8   B
16Z:      16.1 20.3 17.8 19.5 15.5      12.9           15.1 20.1 17.4   F       14.3 15.1 15.9   B
17Z:      16.4 18.7 17.4 18.0 13.9      11.9           17.3 17.9 16.0 16.5      14.8 17.3 18.8   B
18Z:      15.5      16.4      14.9                          20.9 18.2   A         F       15.1 17.7
19Z:   A                                                    21.3 17.5   I       14.3      16.8   A
20Z:                                                        21.3 15.9   I       14.6      16.5 17.1
21Z:                                                        20.3 16.0 12.1   F            15.4 17.1
22Z:                                                        20.8 17.7 19.8   F            17.7 17.7
23Z:                                                        20.4 18.0 22.1   F            19.2 16.2
===============================================
Estimated Average Global MUF(3000)F2: 17.42 MHz.


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

      BOU  TAO  PAL  SHE  OSA  CNV  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  210  220  320            170  200
01Z:  200  250  350            160  190
02Z:  200  280  360            140  190
03Z:  170  310  320            110  190
04Z:  150  360  260             93  200
05Z:  130  420  240            100  190
06Z:  120  440  210            120  200
07Z:  120       170             98  200
08Z:  120       150             74  190
09Z:  120  290  140             44  170
10Z:  120  280  130             37  170
11Z:  110       120             43  160
12Z:  120       120             86  160
13Z:  160       110            130  150
14Z:  210        83            160  140
15Z:  230        49            190  160
16Z:  250        50            200  200
17Z:  240       110            230  210
18Z:  240       130            240  230
19Z:  220       160            230  230
20Z:  210   49  180            200  220
21Z:        56  210            170  220
22Z:  190  120  270            170  220
23Z:       150  310            170  210


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

BOU = Boulder CO                 USA                 (N40W105)
MUR = Murmansk                   USSR                (N68E033)
ASH = Ashkhabad                  USSR                (N37E058)
SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
DIX = Dixon                      USSR                (N74E081)
KHA = Khabarovsk                 USSR                (N48E135)
MAG = Magadan                    USSR                (N60E151)
JUL = Juliusruh/Rugen            Germany             (N54E013)
UPS = Uppsala                    Sweden              (N60E018)
WAR = Warsaw                     Poland              (N52W021)
POI = Poitiers                   France              (N46E000)
OTI = Ottawa                     Canada              (N45W076)
MAU = Maui HI                    USA                 (N20W157)
VBG = Vandenberg AFB CA          USA                 (N34W120)
GOO = Goose Bay                  Canada              (N53W060)
TAO = Taoyuan                    Taiwan              (N25E121)
RES = Resolute Bay               Canada              (N74W094)
CHU = Churchill                  Canada              (N58W094)
KEA = Keakawapu HI               USA                 (N20W156)
RAM = Ramey AFB                  Puerto Rico         (N18W067)
ARG = Argentia                   Canada              (N48W053)
PAL = Palehua HI                 USA                 (N21W158)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)
CNV = Cape Canaveral FL          USA                 (N28W080)
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.


