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From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9307210844.AA05687@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 20 July
To: solar-daily@lut.fi
Date: Wed, 21 Jul 93 2:44:18 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 20 JUL 93
                    ---------------------------------------


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

     MUR  ASH  SAL  MAG  JUL  TOM  DIX  KHA  MAU  VBG  GOO  TAO  RES  CHU  KEA  RAM  NIC  DYS
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 2.9  2.6  3.0  3.2  3.0                 2.8  3.2  3.0   R   3.0       2.8  3.0       3.1
01Z: 3.0  2.7  3.0  3.2  2.9                 2.9  3.1  3.0   A    F        2.9  3.6  3.2  3.1
02Z: 2.8  2.9       3.0  2.7                 3.0  3.3  2.8  3.1   F        3.0  2.9  3.3  3.2
03Z: 2.8       3.1  3.0  2.8                 3.2  3.3  2.9   C    F        3.2  2.9       3.2
04Z: 2.8       2.8  3.0  2.9            3.0  3.4  3.2  2.9  2.7   F        3.4  2.9  3.1  3.1
05Z:           2.8  2.8  2.9            2.8  3.5  3.3  3.1  3.0  3.2       3.5  3.0  3.1  3.0
06Z: 2.7  2.7  2.8  2.8  2.8            2.8  3.3  2.9  2.8  3.0            3.3  3.2  3.2  3.0
07Z: 2.8  2.5  3.0  2.8  2.9  2.9       2.8  2.8  2.9  2.5  3.0            2.9  2.9   C   2.8
08Z: 2.9  2.7  2.8  2.8  3.0  2.8  2.8  3.0  2.8  2.8  2.8  3.0            2.8  2.7   C   2.8
09Z:      2.7  2.9  2.8       3.0  2.8  3.0  3.0  2.9  3.2  3.0            3.0  3.1   C   2.3
10Z: 3.1  2.8  3.1  3.0       3.0       2.8  3.0  2.7  2.7  3.0            3.0  3.0   C   2.9
11Z: 3.0  2.7  2.9  3.0       2.9       2.7  2.9  2.8  3.2  3.2            2.9  3.1  2.8  2.7
12Z: 2.8  2.6  3.1  2.9       3.0       2.7  3.0  2.8  3.1  3.1            3.0  3.7       3.0
13Z:      2.7  3.1  3.0       3.2       2.7  3.0  2.7  3.1  3.0        R   3.0  2.8       3.2
14Z:      2.9  3.0  3.3            2.8  3.0  3.2  3.1  3.0   R        2.9  3.2  2.7  2.9  2.9
15Z: 2.9  2.9  3.0  3.0       3.0  2.8  2.9  2.9  3.2  3.3   R         R   2.9  3.1  2.8  3.1
16Z: 2.9  2.6  2.3  3.0       3.0            3.5  2.8  3.2  3.1       3.0  3.5  3.1       3.2
17Z:           3.1  2.8                      2.7  2.8  3.1   A         F   2.7  2.9       2.8
18Z:                                              2.8  2.7   F        2.8       2.7       2.8
19Z:                                              2.7  2.7  3.0       2.6       2.8       2.8
20Z:                                                   2.6   F        2.5       2.6       2.8
21Z:                                              3.2  2.8  2.5       2.8       3.2
22Z:                                              2.9  2.7  3.5   F             2.8
23Z:                                                   2.9  3.5                           2.9
=========================================
Estimated Average Global M(3000)F2:  2.95.


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

     MUR  ASH  SAL  MAG  TOM  DIX  KHA
     ---  ---  ---  ---  ---  ---  ---
00Z: 2.0  1.8  1.0  1.0
01Z: 1.0  1.8  1.0  1.0
02Z: 1.0  1.5       1.0
03Z: 1.0       1.0  1.0
04Z: 1.0  1.5  1.0  1.0            1.5
05Z: 3.0  1.8  1.0  1.0            1.3
06Z: 2.6  1.8  1.0  1.0            1.4
07Z: 3.1  1.8  1.0  1.0  1.7       1.2
08Z: 1.5  1.9  1.0  1.0  1.0  1.0  1.3
09Z:      2.0  1.0  1.0  1.0  1.2  1.1
10Z: 1.0  2.0  1.0  1.0  1.0  1.2  1.0
11Z: 1.0  1.9  1.0  1.0  1.0  1.0  1.2
12Z: 2.5  1.8  1.0  1.0  1.0  1.0  1.3
13Z: 2.6  1.3  1.0  1.0  1.0  1.0  1.4
14Z: 1.0  1.3  3.0  1.0       1.0  1.2
15Z: 1.0  1.6  1.7  1.0  1.1  1.2  1.2
16Z: 1.5  1.7  1.0  1.0  1.0
17Z:           1.0  1.0       1.0
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  ASH  SAL  MAG  TOM  DIX  KHA
     ---  ---  ---  ---  ---  ---  ---
00Z:      2.4  3.7  3.8
01Z: 3.2  2.5  3.0  3.5
02Z:      3.4       3.3
03Z:                3.7
04Z:      4.0       3.6            3.9
05Z:      8.2  4.0  3.5            3.9
06Z:      4.0  4.5  3.4            4.1
07Z:      4.1  4.0  3.6  3.6       4.3
08Z:      5.6  4.2  3.7  3.5       3.3
09Z:      7.2  5.6  4.3  3.3       3.0
10Z:      7.6  3.0  2.2  2.9  4.0  3.8
11Z:      4.1                 2.6  3.3
12Z:      3.5                 4.0  4.0
13Z:                          3.9  4.9
14Z:      2.9                 3.5  5.0
15Z:      3.8            2.2  2.8  5.7
16Z:      2.0  2.4       2.9
17Z:           5.0  1.4       5.6
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      BOU  MUR  ASH  SAL  MAG  JUL  WAR  TOM  DIX  KHA  POI  OTI  MAU  VBG  GOO  TAO  RES  CHU  KEA  RAM  NIC  DYS  TOW
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  6.0  5.0  5.6  4.8  6.1  6.3  5.8                 6.1      11.0  7.8  7.2   R   6.4      11.0  7.1       7.2  6.6
01Z:       5.0  5.7  5.2  5.8  5.4   B                  6.2      11.6  7.8  6.5   A   6.3      11.6  5.4  5.7  6.6
02Z:       5.0  6.8       5.6  5.0  4.8                 6.2      12.6  7.7  5.6  8.2   F       12.6  6.7  5.6  7.5  7.5
03Z:       5.0       5.6  5.3  4.7   B                  6.2      13.6  7.3  5.1   C   4.7      13.6  5.9       7.0  8.0
04Z:       5.0       5.6  5.6  5.2  5.6            6.0  6.1      13.1  7.6  4.4  9.5   F       13.1  5.5  7.6  6.4  7.1
05Z:       5.0  7.0  5.6  5.3  5.6  5.6            5.8  5.6      11.7  7.0  3.6 11.8  5.8      11.7  5.3  7.3  5.2  6.3
06Z:       5.7  6.4  6.0  5.2  5.3   A             5.7            8.8  5.7  4.3 12.6            8.8  4.7  7.4  4.6  5.6
07Z:       6.0  6.7  6.1  5.6  6.0   R   6.2       5.9            7.9  4.8  3.8 12.2            7.9  4.1   C   4.5  5.9
08Z:       6.0  7.4  6.1  5.8  6.5       6.6  6.0  6.0            7.9  4.6  4.5 11.6            7.9  4.2   C   4.2  5.1
09Z:            8.0  6.1  6.3            6.8  6.0  6.3            7.8  4.6  4.5 11.0            7.8  4.1   C   3.9  5.8
10Z:       6.5  8.4  6.0  7.1            6.4  5.2  6.9            8.0  4.0  7.1 11.8            8.0  4.8   C   3.7  4.0
11Z:       6.1  8.5  5.9  8.2            6.2       8.0            7.5  4.0  5.1 11.0            7.5  5.3  8.7  3.5  3.9
12Z:       6.0  7.0  5.9  8.0            6.5  5.2  8.2       5.7  6.9  3.8  5.2  9.1            6.9  5.9       4.9  4.5
13Z:       5.5  6.9  5.6  7.4            6.2  4.3  7.7       5.2  6.8  6.2  5.4  8.0        R   6.8  6.4       5.7
14Z:       5.3  7.7  5.4  6.9                 5.0  7.0            6.4  5.4  5.4   R        5.0  6.4  6.7  8.5  6.8
15Z:       5.2  7.3  5.1  5.5            6.1  5.0  6.7       6.4  5.6  7.9  5.3   R        4.9  5.6  7.3  7.9  7.6  2.8
16Z:       5.0  7.6  4.8  5.1            6.3                 5.9  6.1  6.2  5.5  8.2       5.5  6.1  6.8       7.1
17Z:                 4.6  4.2                                6.3  5.7  6.7  5.5   A         F   5.7  6.0       7.5
18Z:                                                         5.9       7.1  5.4   F        5.5       5.8       7.6
19Z:                                                                   7.5  5.6  5.0       5.3       6.0       7.6
20Z:                                                                        6.3   F        5.3       6.4       8.0
21Z:                                                                   7.1  6.4  3.9       5.7       6.9
22Z:                                                                   8.8  4.7  6.0   F             6.3
23Z:                                                                        4.4  6.5                           8.2
=========================================
Estimated Average Global foF2:  6.49 MHz.


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

      MUR  ASH  SAL  MAG  JUL  TOM  DIX  KHA  MAU  VBG  GOO  TAO  RES  CHU  KEA  RAM  NIC  DYS
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 14.5 14.6 14.4 19.5 18.9                30.8 25.0 21.6   R  19.2      30.8 21.3      22.3
01Z: 15.0 15.4 15.6 18.6 15.7                33.6 24.2 19.5   A    F       33.6 19.4 18.2 20.5
02Z: 14.0 19.7      16.8 13.5                37.8 25.4 15.7 25.4   F       37.8 19.4 18.5 24.0
03Z: 14.0      17.4 15.9 13.2                43.5 24.1 14.8   C    F       43.5 17.1      22.4
04Z: 14.0      15.7 16.8 15.1           18.0 44.5 24.3 12.8 25.6   F       44.5 16.0 23.6 19.8
05Z:           15.7 14.8 16.2           16.2 40.4 23.1 11.2 35.4 18.6      41.0 15.9 22.6 15.6
06Z: 15.4 17.3 16.8 14.6 14.8           16.0 29.0 16.5 12.0 37.8           29.0 15.0 23.7 13.8
07Z: 16.8 16.8 18.3 15.7 17.4 18.0      16.5 22.5 13.9  9.5 36.6           22.9 11.9   C  12.6
08Z: 17.4 20.0 17.1 16.2 19.5 18.5 16.8 18.0 22.1 12.9 12.6 34.8           22.1 11.3   C  11.8
09Z:      21.6 17.7 17.6      20.4 16.8 18.9 23.0 13.3 14.4 33.0           23.4 12.7   C   9.0
10Z: 20.1 23.5 18.6 21.3      19.2      19.3 23.6 10.8 19.2 35.4           24.0 14.4   C  10.7
11Z: 18.3 23.0 17.1 24.6      18.0      21.6 21.8 11.2 16.3 35.2           21.8 16.4 24.4  9.4
12Z: 16.8 18.2 18.3 23.2      19.5      22.1 20.7 10.6 16.1 28.2           20.7 21.8      14.7
13Z:      18.6 17.4 22.2      19.8      20.8 20.4 16.7 16.7 24.0        R  20.4 17.9      18.2
14Z:      22.3 16.2 22.8           14.0 21.0 20.5 16.7 16.2   R       14.5 20.5 18.1 24.7 19.7
15Z: 15.1 21.2 15.3 16.5      18.3 14.0 19.4 16.2 25.3 17.5   R         R  16.2 22.6 22.1 23.6
16Z: 14.5 19.8 11.0 15.3      18.9           21.0 17.4 17.6 25.4      16.5 21.4 21.1      22.7
17Z:           14.3 11.8                     15.4 18.8 17.0   A         F  15.4 17.4      21.0
18Z:                                              19.9 14.6   F       15.4      15.7      21.3
19Z:                                              20.2 15.1 15.0      13.8      16.8      21.3
20Z:                                                   16.4   F       13.2      16.6      22.4
21Z:                                              22.7 17.9  9.8      16.0      22.1
22Z:                                              25.5 12.7 21.0   F            17.6
23Z:                                                   12.8 22.8                          23.8
===============================================
Estimated Average Global MUF(3000)F2: 19.11 MHz.


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

      BOU  TAO  PAL  SHE  OSA  CNV  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  250  130  420                 150
01Z:       170  450            180  140
02Z:  250  240  490            170  130
03Z:  240  280  510            130  120
04Z:  230  320  450            110  110
05Z:  220  420  360             97  120
06Z:  200  440                  88  140
07Z:  170  430                  83  150
08Z:  160  440                  79  160
09Z:  160  430                  70  160
10Z:  160                       65  130
11Z:  150                       66  120
12Z:  160                      110  110
13Z:  200                      210  110
14Z:  240  130                 220  120
15Z:  300  120                 220  120
16Z:  330  160                 240  140
17Z:  300  140  120            270  150
18Z:  300  110                 260  160
19Z:  310  100  250            260  190
20Z:  350   94  310            290  190
21Z:  370  140  340            320
22Z:  310  200  400            290
23Z:  290  200  460            250


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)
MAG = Magadan                    USSR                (N60E151)
JUL = Juliusruh/Rugen            Germany             (N54E013)
WAR = Warsaw                     Poland              (N52W021)
TOM = Tomsk                      USSR                (N56E085)
DIX = Dixon                      USSR                (N74E081)
KHA = Khabarovsk                 USSR                (N48E135)
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)
NIC = Nicosia                    Cyprus              (N35E033)
DYS = Dyess AFB TX               USA                 (N32W099)
TOW = Townsville                 Australia           (S19E147)
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.


