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From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9308010129.AA02389@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 24 July
To: solar-daily@lut.fi
Date: Sat, 31 Jul 93 19:29:23 MDT
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Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
X-Sequence: 906
Status: OR

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 24 JUL 93
                    ---------------------------------------


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

KRE: Type of Measurement = Riometer.
     Type of Phenomenon  = Auroral Absorption.
     Start of Event: 1735Z
     Event Maximum : 1740Z,  Maximum Absorption: 1 dB
     End of Event  : 1800Z


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

     MAU  VBG  GOO  TAO  RES  KEA  RAM  ARG  BER  NIC  DYS  TOW  BOU  MUR  ASH  SAL  TOM  DIX  MAG
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 2.8  3.4  2.9  3.1  3.0  2.9  3.0  3.2   B        3.1       3.2  3.1  3.0  3.2  3.0  2.6  3.0
01Z: 2.8  3.3  3.1  3.1  3.1  2.9  3.1   A    B        3.3       3.1  3.1  3.1  3.0  3.0       2.8
02Z: 3.0  3.3  3.0  3.0   F   3.0  2.9  3.5   B        3.1  3.2  3.4  2.8  2.9  3.0  2.9       3.1
03Z: 3.0  3.0  2.8  3.0  3.1  3.0  2.9   B    B        3.2  3.3  3.2  3.5  2.5  3.0  2.7  2.6  2.8
04Z: 3.1  3.1  2.6  2.8  3.2  3.1  3.1   B    B        3.1  2.8  3.2  3.1
05Z: 3.3  3.1  3.0   C   3.2  3.3  2.9  3.3   B             3.1  3.2       3.0       3.0       3.1
06Z: 3.0  3.1  3.0   C        3.1  2.9  3.1   B        3.0  3.3  3.2       2.8  2.9            3.2
07Z: 2.8  3.0  3.1   C        2.9  3.0   B    B        3.1       3.2  3.0  2.8       2.8       3.4
08Z: 2.9  3.5  3.2   R        2.9  2.9   B    B        3.1       3.2            3.0            3.1
09Z: 2.8  2.7  3.3   R        2.9  3.0  3.3   A        3.2  3.4  3.1       2.8       3.2       3.1
10Z:      3.4  3.1  3.3        A   3.2  3.3  3.1       3.1       3.5       2.7       3.1  2.8  3.0
11Z: 2.9  2.8  3.1  3.2       2.9  3.4  3.0  3.0       2.9       3.4       2.8  3.0  3.1  2.8  3.0
12Z: 3.3  2.7  2.9  3.1       3.4  3.2  3.4  3.3       3.1       3.6       2.9  3.1  3.1  3.0  3.0
13Z: 3.5  3.7  3.3  2.9       3.5  3.2   B    A        3.1       3.6  3.0  2.9  3.2  3.2  3.0  3.0
14Z: 3.3  3.1  3.5  2.8       3.3  2.9   A   2.8       3.0            3.0  2.9  3.1       3.1  3.0
15Z: 3.2  3.1  3.0   I        3.2  2.8  3.2   A        3.0            3.2  3.1  3.1  3.1  3.1  3.0
16Z: 2.8  4.0  3.1   I        2.9  2.8   A    A   3.1  3.0  2.9       3.2
17Z: 3.5  2.8  3.0   I        3.5  2.9  3.0   A   3.1  2.8                 3.0  3.1            3.2
18Z:       A   2.8   I             2.9   A   3.8  3.1  2.7            3.0  3.0  3.0  3.0  3.0  2.8
19Z:      3.1  2.7   R             2.7  3.0   A   3.2  2.8            3.0  2.6  2.8  2.8  3.0  2.8
20Z:      3.4  2.9  3.1            2.9  3.1  3.4  3.0  2.8  3.3       3.1  2.6  3.0  2.9       3.0
21Z:       A   2.9  2.9            3.0  3.1  3.5  3.0  2.9  3.6       3.1  2.6  3.0  3.1  3.0  3.0
22Z:      3.2  2.9  3.2   F        3.0  3.0  3.6  3.0  3.1  3.5       3.0  2.6  3.1       3.0  3.2
23Z:      3.1  3.1  3.3   F        3.0  3.2   B   3.0  3.0                 2.6       3.0
=========================================
Estimated Average Global M(3000)F2:  3.06.


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

     MUR  ASH  SAL  TOM  DIX  MAG
     ---  ---  ---  ---  ---  ---
00Z: 1.0  1.3  1.0  1.0  1.0  1.0
01Z: 1.0  1.3  1.0  1.0  1.0  1.0
02Z: 1.0  1.3  1.0  1.0  1.2  1.0
03Z: 1.0  1.2  1.0  1.0  1.0  1.1
04Z: 1.0
05Z: 1.0  2.1  1.0  1.0  1.0  1.0
06Z: 1.0  2.7  1.0       1.0  1.0
07Z: 1.0  2.5       1.0  1.0  1.0
08Z: 1.0  2.7  1.0       1.0  1.0
09Z: 1.0  3.7       1.0  1.2  1.0
10Z: 1.0  2.1       1.0  1.0  1.0
11Z:      2.1  1.0  1.0  1.2  1.0
12Z: 1.5  2.0  1.0  1.0  1.3  1.0
13Z: 1.0  1.9  1.0  1.0  1.3  1.0
14Z: 1.0  1.8  1.0       1.0  1.0
15Z: 1.0  2.0  1.0  1.0  1.0  1.0
16Z: 1.0
17Z:      1.8  1.0       3.0  1.0
18Z: 1.0  1.8  1.0  1.3  1.0  1.0
19Z: 1.0  1.8  1.0  1.0  1.0  1.0
20Z: 1.7  1.7  1.0  1.0  1.0  1.0
21Z: 1.5  1.8  1.0  1.0  1.0  1.0
22Z: 1.3  1.8  1.0       1.0  1.0
23Z:      1.6       1.0       1.0


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

     MUR  ASH  SAL  TOM  DIX  MAG
     ---  ---  ---  ---  ---  ---
00Z: 3.5       3.8  2.0  3.0  4.0
01Z: 3.5  2.5  5.0  3.0  3.0  3.9
02Z: 3.0  2.6       4.0  3.0  3.4
03Z: 4.0  4.0       4.2       3.4
04Z: 4.2
05Z: 5.0  5.6  3.9  7.4  4.0  3.2
06Z: 4.2  6.6  3.7       4.5  3.2
07Z: 5.0  5.4       3.6  3.3  3.1
08Z: 6.5   10  3.5       3.3  2.9
09Z:  10  5.5       3.0       2.7
10Z: 5.1  5.0       2.9       2.4
11Z:      4.0  4.0       3.0  1.3
12Z: 5.0  4.7  4.0  3.5
13Z: 4.2  5.7       4.5       3.4
14Z: 5.0  4.0  2.5       3.2  3.6
15Z: 4.1  4.8  5.0  4.0  3.0  1.3
16Z: 4.0
17Z:      5.2  2.4       7.0  1.2
18Z:      4.4            4.0  2.0
19Z:      4.2            4.2  2.2
20Z:      4.2            6.4  2.6
21Z:      4.0       2.3  5.2  3.2
22Z:      5.2            4.0  3.5
23Z:      8.0       2.0       4.8


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

      MAU  CAM  VBG  GOO  TAO  RES  KEA  RAM  ARG  BER  NIC  DYS  TOW  BOU  MUR  ASH  SAL  TOM  DIX  MAG
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 10.0  6.0  6.6  6.2  6.5  5.7 10.0  5.7  5.9   B        6.0       5.6  5.0  4.8  4.7  5.0  5.0  5.1
01Z: 10.4  6.9  7.0  6.4  7.3  5.8 10.4  5.7   A    B        6.0       5.6  5.0  4.4  5.0  5.3  5.0  5.2
02Z: 10.9  7.0  6.2  5.5  7.5  5.7 10.9  5.5  4.1   B        6.5  7.0  5.8  5.0  5.6  5.3  5.8  5.0  5.3
03Z: 10.4  7.6  6.2  4.9  7.1  5.7 10.4  5.3   B    B        5.5  6.8  5.7  5.0  6.8  5.5  5.8  5.0  5.3
04Z: 10.4  7.8  6.4  4.6  7.3  5.7 10.4  5.0   B    B        4.6  6.4  5.3  5.5
05Z:  9.6  7.0  6.4  4.2   C   5.1  9.6  4.8  4.1   B             7.3  4.8  5.4  9.0  5.1  6.0  5.2  5.4
06Z:  7.5  6.3  5.5  3.3   C        7.5  4.7  4.4   B        4.7  7.2  4.2  5.8  8.6  5.5       5.2  5.6
07Z:  7.1  6.3  5.4  3.5   C        7.1  4.4   B    B        4.6       4.2  6.0  7.4       5.8  5.2  5.8
08Z:  7.1  4.7  5.5  4.2   R        7.1  3.8   B    B        4.5  5.6  3.6            5.7       5.3  5.4
09Z:  6.1  3.5  6.5  4.8   R        6.1  3.7  4.7   A        4.1  4.8  3.7       8.0       6.3  5.2  5.8
10Z:  6.6  3.5  4.2  5.1 12.5       6.6  4.4  5.4  5.3       3.7  3.3  3.6  6.0  7.8       5.8  5.4  5.9
11Z:  7.1  3.3  3.9  5.2 11.2       7.1  5.3  5.7  5.4       3.9  3.1  3.0       7.4  5.5  6.0  5.2  6.6
12Z:  7.1  3.8  4.3  5.6  7.9       7.1  5.7  5.5  5.9       4.9  3.8  3.7  5.8  7.8  6.5  5.7  5.5  6.5
13Z:  6.8  3.7  5.0  5.6  7.5       6.8  5.9   B    A        5.4       4.5  5.5  7.0  5.5  5.9  5.5  6.1
14Z:  4.7  3.7  6.0  5.3  7.0       4.7  6.0   A   6.0       7.3  3.9  5.6  5.7  6.6  5.6       5.2  5.8
15Z:  3.8  3.8  6.9  5.8   I        3.8  6.5  6.0   A        7.9  3.2  7.0  5.3  7.2  5.6  6.2  5.2  5.4
16Z:  4.1  4.0  6.8  5.8   I        4.1  6.6   A    A   7.3  8.2  3.7  7.1  5.3
17Z:  6.2  4.1  6.2  6.1   I        6.2  6.6  6.0   A   7.6  7.5  3.6  7.0       7.0  5.2            4.1
18Z:  6.2  4.7   A   5.9   I             6.6   A   7.1  7.4  7.9  3.6  6.3  5.1  7.0  5.0  5.3  5.0  4.9
19Z:  6.7  4.3  6.2  6.0   R             6.4  5.7   A   7.4  7.9  3.8  6.6  4.5  7.0  4.4  4.9  5.0  5.1
20Z:  7.0  3.0  7.9  6.3  7.3            6.5  6.1  6.2  6.3  9.0  4.4  7.1  5.3  7.0  4.5  4.6       5.0
21Z:  7.8  4.6   A   6.0  6.5            6.5  6.1  6.7  5.9  8.2  5.1  6.4  4.8  7.0  4.5  4.3  5.0  4.9
22Z:  8.5  6.3  7.2  7.0  7.0   F        6.8  6.4  5.8  6.2  7.4  6.4  6.3  5.1  7.0  4.4       5.0  4.9
23Z:  8.9  6.5  7.2  6.2  7.7   F        6.5  7.0   B   6.0  6.8        A        6.6       4.6       4.9
=========================================
Estimated Average Global foF2:  5.92 MHz.


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

      MAU  VBG  GOO  TAO  RES  KEA  RAM  ARG  BER  NIC  DYS  TOW  BOU  MUR  ASH  SAL  TOM  DIX  MAG
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 28.5 22.4 18.0 20.1 17.1 29.0 17.1 18.9   B       18.6      17.8 15.5 14.4 15.0 15.0 13.0 15.3
01Z: 29.6 23.1 19.8 22.6 18.0 30.2 17.7   A    B       19.8      17.5 15.5 13.6 15.0 15.9      14.6
02Z: 32.2 20.5 16.5 22.5   F  32.7 16.0 14.3   B       20.1 22.4 19.8 14.0 16.2 15.9 16.8      16.4
03Z: 30.7 18.6 13.7 21.3 17.7 31.2 15.4   B    B       17.6 22.4 18.1 17.5 17.0 16.5 15.7 13.0 14.8
04Z: 32.2 19.8 12.0 20.4 18.2 32.2 15.5   B    B       14.3 17.9 16.9 17.0
05Z: 31.7 19.8 12.6   C  16.3 31.7 13.9 13.5   B            22.6 15.5      27.0      18.0      16.7
06Z: 22.9 17.0  9.9   C       23.2 13.6 13.6   B       14.1 23.8 13.3      24.1 16.0           17.9
07Z: 20.2 16.2 10.8   C       20.6 13.2   B    B       14.3      13.4 18.0 20.7      16.2      19.7
08Z: 20.6 19.2 13.4   R       20.6 11.0   B    B       13.9      11.3           17.1           16.7
09Z: 17.4 17.6 15.8   R       17.7 11.1 15.5   A       13.1 16.3 11.5      22.4      20.2      18.0
10Z:      14.3 15.8 41.2        A  14.1 17.8 16.4      11.5      12.5      21.1      18.0 15.1 17.7
11Z: 20.6 10.9 16.1 35.8      20.6 18.0 17.1 16.2      11.3      10.1      20.7 16.5 18.6 14.6 19.8
12Z: 23.8 11.6 16.2 24.5      24.1 18.2 18.7 19.5      15.2      13.4      22.6 20.1 17.7 16.5 19.5
13Z: 23.8 18.5 18.5 21.8      23.8 18.9   B    A       16.7      16.2 16.5 20.3 17.6 18.9 16.5 18.3
14Z: 15.5 18.6 18.6 19.6      15.5 17.4   A  16.8      21.9           17.1 19.1 17.4      16.1 17.4
15Z: 12.0 21.4 17.4   I       12.2 18.2 19.2   A       23.7           17.0 22.3 17.4 19.2 16.1 16.2
16Z: 11.7 27.2 18.0   I       11.9 18.5   A    A  22.6 24.6 10.7      17.0
17Z: 21.4 17.4 18.3   I       21.7 19.1 18.0   A  23.6 21.0                21.0 16.1           13.1
18Z:        A  16.5   I            19.1   A  27.0 22.9 21.3           15.3 21.0 15.0 15.9 15.0 13.7
19Z:      19.2 16.2   R            17.3 17.1   A  23.7 22.1           13.5 18.2 12.3 13.7 15.0 14.3
20Z:      26.9 18.3 22.6           18.9 18.9 21.1 18.9 25.2 14.5      16.4 18.2 13.5 13.3      15.0
21Z:        A  17.4 18.9           19.5 18.9 23.4 17.7 23.8 18.4      14.9 18.2 13.5 13.3 15.0 14.7
22Z:      23.0 20.3 22.4   F       20.4 19.2 20.9 18.6 22.9 22.4      15.3 18.2 13.6      15.0 15.7
23Z:      22.3 19.2 25.4   F       19.5 22.4   B  18.0 20.4        A       17.2      13.8
===============================================
Estimated Average Global MUF(3000)F2: 18.10 MHz.


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

      TAO  ANC  CNV  PAL  BOU  SHE  OSA
     ---- ---- ---- ---- ---- ---- ----
00Z:  160  200  160  350  190
01Z:  140  200  160  370
02Z:       190  140  390  180
03Z:       190  100  380  170
04Z:       190   96  360
05Z:       200   95  330  150
06Z:       200   86       150
07Z:  450  190   81       130
08Z:  610  200   73       120
09Z:  690  170   48       120
10Z:  640  160   42       120
11Z:  490  170   54       110
12Z:  290  150   82       110
13Z:  210  150  120       150
14Z:  170  150  160       210
15Z:  160  160  190       250
16Z:  150  210  230       270
17Z:  120  240  250       270
18Z:       240  250
19Z:   99            180  260
20Z:   94  260  270  220  280
21Z:  100  240  260  250
22Z:  150  240  220  270  230
23Z:  200  220  190  300  210


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

MAU = Maui HI                    USA                 (N20W157)
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)
ANC = Anchorage AK               USA                 (N61W150)
CNV = Cape Canaveral FL          USA                 (N28W080)
PAL = Palehua HI                 USA                 (N21W158)
BOU = Boulder CO                 USA                 (N40W105)
MUR = Murmansk                   USSR                (N68E033) (GOES-2)
ASH = Ashkhabad                  USSR                (N37E058) (GOES-2)
SAL = Salekhard                  USSR                (N66E066) (GOES-2)
TOM = Tomsk                      USSR                (N56E085) (GOES-2)
DIX = Dixon                      USSR                (N74E081) (GOES-2)
MAG = Magadan                    USSR                (N60E151) (GOES-2)
KRE = Krenkel                    USSR                (N80E058)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)


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.


