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From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9308011646.AA09524@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 27 July
To: solar-daily@lut.fi
Date: Sun, 1 Aug 93 10:46:47 MDT
X-Mailer: ELM [version 2.3 PL11]
Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
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Status: OR

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 27 JUL 93
                    ---------------------------------------


REPORTS OF IONOSPHERIC ABSORPTION
---------------------------------

KRE: Type of Measurement = Riometer.
     Type of Phenomenon  = Auroral Absorption.
     Start of Event: 1310Z
     Event Maximum : 1345Z,  Maximum Absorption: 1 dB
     End of Event  : 1400Z


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

     SAL  TOM  DIX  MAG  BOU  MUR  ASH  JUL  UPS  VBG  GOO  TAO  RES  KEA  RAM  ARG  BER  NIC  DYS  TOW  MAU
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 3.0  2.9       3.2  3.1            3.0        A   3.0  3.3       2.6  3.1   B    B   2.9  3.1  3.5  2.6
01Z: 3.1  3.3       3.2       3.1  3.0  2.7       3.1  3.0  3.1       2.7  2.7   B    B   3.0  3.1       2.7
02Z: 2.9  2.6  2.8  2.6       3.1  3.1  2.8  2.8  3.4  2.9  3.3       2.8  3.1   B    B   3.2  3.4  3.2  2.8
03Z: 3.1  3.3  3.0  2.9       3.2  3.4  2.8       3.2  2.8   A        3.0  3.0   B    B   3.2  2.9  3.4  3.0
04Z: 3.1  3.2       3.0       3.1  3.2  2.9  2.9  2.4  2.8  2.7       3.2  2.9   B   3.2  3.2   A        3.2
05Z: 3.2  2.9       3.1       3.1  2.9  3.0  3.3  2.9  3.1  2.7  3.2  3.2  2.9  2.9  3.0  3.0  2.9  3.3  3.2
06Z: 3.0  3.1       3.1       2.9  2.7  3.0       3.0  2.9  2.7       3.2  3.0   B   2.9  3.0  2.9  3.3  3.2
07Z: 3.0  3.2       3.2       3.0  2.9  3.0       2.9  3.0  2.9       3.1  3.1   B   3.0  3.1  2.9       3.1
08Z: 3.0  3.1       3.2       2.8  2.9  3.1       3.1  3.1  3.0       3.0  2.9   B    B   3.2  3.0  2.9  3.0
09Z: 3.1  2.9  2.8  3.2       3.0  2.9            2.8  2.9  2.9       3.0  2.9  3.0   A        3.0       3.0
10Z: 3.0  2.8  2.9  3.0            2.9                 2.9  3.2       2.6  3.1   A   3.3  2.8  3.0       2.5
11Z: 2.9  3.1  2.9  3.0            2.9            2.4  3.3  3.1       3.3  2.8  3.1  3.3  2.8  3.0       3.3
12Z: 3.0  3.1  3.1  3.2       3.1  3.0            2.8  3.2  3.1       3.2  3.2  3.1  3.5  2.8  3.5       3.2
13Z: 3.1  3.0  3.1  3.0       3.0  2.9            4.3  3.5  3.3       3.2  3.2   B   3.7  2.9  2.8       3.2
14Z: 3.1       3.1  3.0       3.1  3.0            3.0  3.1  3.1       3.1       3.4   A   2.9  3.1  2.6  3.1
15Z: 3.3       3.2  3.0       3.3  2.9            3.5  3.1   I        3.0        B   3.0  3.0  3.3       3.0
16Z: 3.3  2.9  3.2  3.0       3.5  3.0            3.3  2.6  3.0       2.9  2.8  2.9  3.3  3.2  3.2       2.9
17Z: 3.1  2.7       3.0       3.1                 2.9  2.9  3.0       3.5  3.6   A   2.9  3.4  2.8  3.5  3.5
18Z:      3.0       3.2       3.0  2.9            2.7  2.8   R             2.5  3.1   A    C        3.0
19Z:      2.8       3.2       3.0  2.8            2.9  3.2  3.0            3.0   A   3.3  2.9
20Z:      2.8       3.1       3.1  2.9            3.1  2.9  3.2            2.9  3.1  3.1  3.0
21Z:      2.9       2.8            2.8            2.8  3.1  3.1            2.9  3.1  3.1  3.1
22Z: 3.1  2.9       3.0            2.8            3.1  3.0  3.3            3.0   B   3.6  2.9       3.4
23Z: 3.0  3.2  2.8  3.2            2.6            3.3  3.0  3.5   F        3.2   B    B   2.9
=========================================
Estimated Average Global M(3000)F2:  3.04.


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

     SAL  TOM  DIX  MAG  MUR  ASH
     ---  ---  ---  ---  ---  ---
00Z: 1.0  1.0  1.4  1.0
01Z: 1.0  1.5       1.0  1.0  1.8
02Z: 1.0  1.3  1.5  1.0  1.0  2.0
03Z: 1.0  1.4  1.2  1.0  1.0  2.0
04Z: 1.0  1.3  1.3  1.0  1.0  2.5
05Z: 1.0  1.0  1.3  1.0  1.0  2.4
06Z: 1.0  1.7       1.0  1.0  2.2
07Z: 1.0  1.3  1.4  1.0  1.0  1.9
08Z: 1.0  1.6  1.3  1.0  1.0  1.8
09Z: 1.0  1.5  1.5  1.0  1.0  2.5
10Z: 1.0  1.0  1.3  1.0  1.0  1.8
11Z: 1.0  1.8  1.3  1.0  1.0  2.0
12Z: 1.0  1.4  1.6  1.0  1.0  2.0
13Z: 1.0  1.0  1.0  1.0  1.0  2.0
14Z: 1.0  1.0  1.2  1.0  1.0  2.0
15Z: 1.0       1.2  1.0  1.0  2.0
16Z: 1.0  1.0  1.2  1.0  1.0  2.0
17Z: 1.0  1.0  1.0  1.0  1.0
18Z: 1.0  1.0  1.0  1.0  3.5  1.8
19Z: 1.0  1.0  1.0  1.0  2.0  2.0
20Z: 1.0  1.0  1.0  1.0  1.5  1.8
21Z: 1.0  1.0  1.0  1.0  1.7  2.0
22Z: 1.0  1.0  1.0  1.0  1.0  1.8
23Z: 1.0  1.0  1.0  1.0  1.0  2.0


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

     SAL  TOM  DIX  MAG  MUR  ASH
     ---  ---  ---  ---  ---  ---
00Z: 2.2  2.0  2.8  3.5
01Z: 2.5  3.5       3.6  4.2  5.2
02Z: 2.7  3.0  3.0  3.4  2.3  4.0
03Z: 2.8  3.3       3.8       4.0
04Z: 3.1  4.0       3.6  3.1  4.5
05Z: 3.5  4.0  3.0  3.8  4.0  9.8
06Z: 3.8  3.6       3.7  4.4  3.8
07Z: 4.4  3.5       3.7  4.0  4.8
08Z: 5.0  4.8       3.5  4.4  4.9
09Z: 4.8  4.6       2.4  4.0  4.6
10Z: 6.0  3.8       2.1  4.4  5.2
11Z: 3.5       3.0  1.6  4.0  4.4
12Z: 3.5  2.8  3.0  1.8  5.0  6.2
13Z:      2.3  2.6  1.8  6.5  7.2
14Z:      6.5  2.9  1.9  3.5  5.6
15Z:           2.8  4.2       4.8
16Z: 4.7  4.7  4.0  2.2       4.2
17Z: 4.0  6.0  6.0  2.2
18Z: 4.4  2.5  6.2  2.4       4.5
19Z: 3.8  2.7  5.2  2.4  3.2  3.3
20Z: 2.7  2.3  6.2  3.2  5.0  4.5
21Z: 4.7       6.0  3.9  4.0  3.2
22Z: 3.0       5.0  4.2  4.0  3.2
23Z:      2.2  3.9  4.5  7.0  3.2


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

      SAL  TOM  DIX  MAG  BOU  MUR  ASH  JUL  WAR  UPS  POI  OTI  CAM  VBG  GOO  TAO  RES  KEA  RAM  ARG  BER  NIC  DYS  TOW  MAU  MNZ  BEI
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  5.1  5.9  5.0  5.3  5.6            5.1  4.9  5.1  5.0       6.5   A   6.8  7.0       9.7  6.8   B    B   6.4  6.2  7.6  9.7  6.2  7.1
01Z:  5.5  5.5       5.2       4.5  5.0  4.6  4.3       4.6       8.2  7.5  6.7  7.5      10.2  4.6   B    B   5.6  6.7      10.2  6.9  7.5
02Z:  5.4  6.3  5.3  5.4       4.8  5.8  4.1  4.1  4.0  4.6            7.3  5.6  7.5      10.8  5.7   B    B   5.6  6.4  7.6 10.8  6.4  7.0
03Z:  5.7  6.6  5.3  5.8       5.0  7.0  4.0  4.1       4.5       7.5  7.8  5.2   A       11.6  6.4   B    B   4.7  4.9  7.6 11.6  6.3  6.5
04Z:  5.8  6.5  5.4  5.8       5.5  7.6  4.9  5.2  5.3  4.3       7.1  6.0  4.9  7.7      12.0  5.7   B   5.5  5.4   A   6.9 12.0  6.4  6.9
05Z:  5.9  5.5  5.4  5.7       6.2  6.9  6.0  6.1  5.8  4.3       6.7  6.2  4.4  9.0  5.1 11.2  5.4  4.9  5.5  7.0  4.3  8.5 11.2  6.4  7.3
06Z:  5.9  6.7       5.6       6.0  7.2  6.2  6.8                 6.9  4.7  3.7  9.5       9.7  5.0   B   5.6  8.0  4.2  7.2  9.7  7.0  6.9
07Z:  6.0  6.3  5.5  5.9       5.5  9.0  6.2  6.1       5.8       6.4  4.6  3.4 10.0       8.6  5.1   B   5.6  7.8  4.3       8.6  6.8  6.6
08Z:  6.0  6.5  5.5  5.9       6.4  8.0  6.8  6.8       6.0       4.6  4.5  3.9 10.0       8.0  4.5   B    B   6.9  4.4  5.8  8.0  6.9
09Z:  5.9  6.0  5.5  5.9       6.3  7.4  7.1  6.7       6.5       3.7  4.4  4.7 10.8       7.6  4.0  4.8   A        4.0  6.9  7.6  6.9
10Z:  6.1  6.5  5.4  6.1       5.7  7.2  6.8  6.9       6.1       3.8       5.0 11.0       7.8  4.6   A   5.7  7.6  4.0  3.1  7.8  6.2
11Z:  5.6  5.9  5.4  6.8       5.6  7.0  6.7  6.2       6.3       3.1  5.4  5.8  9.4       8.8  5.0  5.9  5.8  7.6  3.9  4.1  8.8  6.5
12Z:  6.0  6.0  5.6  6.9       6.0  7.3  6.4  6.2       6.2  5.3  2.9  5.1  5.4  9.2       8.2  6.2  5.5  6.6  7.8  4.9  3.8  8.2  6.0
13Z:  5.8  6.4  5.8  6.8       6.1  7.2  6.3  6.5       6.7  5.5  3.2  7.2  5.9  9.5       6.9  6.2   B   5.5  8.1  5.3  2.3  6.9  7.4
14Z:  6.0       5.6  6.2  5.8  5.9  7.4  6.7  6.4       6.7  6.2  3.4  7.1  6.1 10.3       5.7       6.1   A   8.1  6.6  3.9  5.7  8.0  8.2
15Z:  5.5       5.4  5.9  6.0  5.8  7.8  6.4  6.7       6.8  5.9  3.5  5.9  5.5   I        5.5        B   6.4  9.0  7.6       5.5  7.4
16Z:  5.3  7.0  5.3  5.3  6.3  5.5  8.2  6.3  6.3       6.5  5.7  4.0  6.5  5.4  9.0       5.3  5.9  6.3  6.1  9.1  6.6  3.4  5.3  7.2  5.9
17Z:  6.0  6.3       4.5  6.4  5.5       6.2  6.2       6.3  6.0  3.7  6.4  5.6  8.6       6.9  5.9   A   6.3  8.5  6.2  3.9  6.9  6.3  5.4
18Z:       5.6       4.6  6.6  5.2  6.2  6.9  6.6       6.3  6.0  4.1  6.5  5.6   R             6.2  5.7   A    C        3.0  5.4  5.2  4.9
19Z:       5.0       4.9  6.7  5.0  6.0  6.8  6.4       7.2  5.9  4.1  6.7  5.6  8.8            6.4   A   6.2  6.6       3.3  6.8  5.2  4.9
20Z:       4.3       5.6  6.3  5.0  5.5  7.0  6.8       8.1  5.9  3.5  7.0  5.5  8.0            6.0  5.6  6.2  6.5       4.0  6.7  5.6  4.8
21Z:       4.1       5.3  6.0       5.4  7.1  6.2       7.8  5.8  4.8  6.9  6.1  6.0            6.2  5.9  5.9  6.2       4.1  7.7  4.5  5.1
22Z:  4.6  4.0       5.8  6.0       5.0  6.5   C        7.2       5.8  7.5  6.0  7.3            6.5   B   5.8  6.5       5.9  8.7  4.5  5.9
23Z:  4.3  4.5  4.8  5.2  5.9       5.0  5.8  6.0       6.7       6.1  6.4  6.5  7.3   F        5.8   B    B   6.8            9.3  4.8  6.3
=========================================
Estimated Average Global foF2:  6.20 MHz.


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

      SAL  TOM  DIX  MAG  BOU  MUR  ASH  JUL  UPS  VBG  GOO  TAO  RES  KEA  RAM  ARG  BER  NIC  DYS  TOW  MAU
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 15.3 17.1      17.0 17.5           15.3        A  20.4 23.1      25.2 21.1   B    B  18.6 19.2 26.6 25.2
01Z: 17.0 18.1      16.6      13.9 15.0 12.4      23.2 20.1 23.2      27.5 12.4   B    B  16.8 20.8      27.5
02Z: 15.7 16.4 14.8 14.0      14.9 18.0 11.5 11.0 24.8 16.2 24.8      30.2 17.7   B    B  17.9 21.8 24.3 30.2
03Z: 17.7 21.8 15.9 16.8      16.0 23.8 11.2      25.0 14.6   A       34.8 19.2   B    B  15.0 14.2 25.8 34.8
04Z: 18.0 20.8      17.4      17.0 24.3 14.2 15.4 14.4 13.7 20.8      38.4 16.5   B  17.6 17.3   A       37.8
05Z: 18.9 16.0      17.7      19.2 20.0 18.0 19.1 18.0 13.6 24.3 16.3 35.8 15.7 14.2 16.5 21.0 12.5 28.0 35.8
06Z: 17.7 20.8      17.4      17.4 19.4 18.6      14.1 10.7 25.6      31.0 15.0   B  16.2 24.0 12.2 23.8 30.6
07Z: 18.0 20.2      18.9      16.5 26.1 18.6      13.3 10.2 29.0      26.7 15.8   B  16.8 24.2 12.5      26.7
08Z: 18.0 20.1      18.9      17.9 23.2 21.1      13.9 12.1 30.0      24.0 13.1   B    B  22.1 13.2 16.8 23.6
09Z: 18.3 17.4 15.4 18.9      18.9 21.5           12.3 13.6 31.3      22.8 11.6 14.4   A       12.0      22.8
10Z: 18.3 18.2 15.7 18.3           20.9                14.5 35.2      20.3 14.3   A  18.8 21.3 12.0      19.9
11Z: 16.2 18.3 15.7 20.4           20.3           13.0 19.1 29.1      29.0 14.0 18.3 19.1 21.3 11.7      29.0
12Z: 18.0 18.6 17.4 22.1      18.6 21.9           14.3 17.3 28.5      26.2 19.8 17.0 23.1 21.8 17.1      26.2
13Z: 18.0 19.2 18.0 20.4      18.3 20.9           31.0 20.6 31.4      22.1 19.8   B  20.4 23.5 14.8      22.1
14Z: 18.6      17.4 18.6      18.3 22.2           21.3 18.9 31.9      17.7      20.7   A  23.5 20.5 10.1 17.7
15Z: 18.1      17.3 17.7      19.1 22.6           20.6 17.0   I       16.5        B  19.2 27.0 25.1      16.5
16Z: 17.5 20.3 17.0 15.9      19.2 24.6           21.4 14.0 27.0      15.4 16.5 18.3 20.1 29.1 21.1      15.4
17Z: 18.6 17.0      13.5      17.0                18.6 16.2 25.8      24.1 21.2   A  18.3 28.9 17.4 13.7 23.8
18Z:      16.8      14.7      15.6 18.0           17.6 15.7   R            15.5 17.7   A    C        9.0
19Z:      14.0      15.7      15.0 16.8           19.4 17.9 26.4           19.2   A  20.5 19.1
20Z:      12.0      17.4      15.5 16.0           21.7 16.0 25.6           17.4 17.4 19.2 19.5
21Z:      11.9      14.8           15.1           19.3 18.9 18.6           18.0 18.3 18.3 19.2
22Z: 14.3 11.6      17.4           14.0           23.2 18.0 24.1           19.5   B  20.9 18.9      20.1
23Z: 12.9 14.4 13.4 16.6           13.0           21.1 19.5 25.6   F       18.6   B    B  19.7
===============================================
Estimated Average Global MUF(3000)F2: 18.84 MHz.


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

      BOU  TAO  PAL  SHE  OSA  CNV  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  200  260  360                 210
01Z:       310  420            170  210
02Z:  200  350  450            140  210
03Z:  200  360  460            100  210
04Z:  160  390  450             90  210
05Z:  140  400  400             80  210
06Z:  120  440  330             80  210
07Z:  120  450  280             82  200
08Z:       450  230             72  200
09Z:  120  480  210             51  200
10Z:  110  530  190             43  210
11Z:  110       180             44  220
12Z:  110       160             86  220
13Z:  150       120            130  220
14Z:            100            180  210
15Z:  230        90            210  220
16Z:  240        91            200  260
17Z:  240  140  140            220  310
18Z:  240  130  140            230  320
19Z:  250  110  190            210  300
20Z:  240  110  230            200  300
21Z:  220  110  250            180  300
22Z:  210  140  290            190  270
23Z:  200  120  350            190  220


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

SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
DIX = Dixon                      USSR                (N74E081)
MAG = Magadan                    USSR                (N60E151)
BOU = Boulder CO                 USA                 (N40W105)
MUR = Murmansk                   USSR                (N68E033)
ASH = Ashkhabad                  USSR                (N37E058)
JUL = Juliusruh/Rugen            Germany             (N54E013)
WAR = Warsaw                     Poland              (N52W021)
UPS = Uppsala                    Sweden              (N60E018)
POI = Poitiers                   France              (N46E000)
OTI = Ottawa                     Canada              (N45W076)
CAM = Camden                     Australia           (S34E151)
VBG = Vandenberg AFB CA          USA                 (N34W120)
GOO = Goose Bay                  Canada              (N53W060)
TAO = Taoyuan                    Taiwan              (N25E121)
RES = Resolute Bay               Canada              (N74W094)
KEA = Keakawapu HI               USA                 (N20W156)
RAM = Ramey AFB                  Puerto Rico         (N18W067)
ARG = Argentia                   Canada              (N48W053)
BER = Bermuda                    Bermuda             (N32W064)
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)
MAU = Maui HI                    USA                 (N20W157)
MNZ = Manzhouli                  China               (N49E117)
BEI = Beijing                    China               (N40E116)
KRE = Krenkel                    USSR                (N80E058)


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.


