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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 27 August
To: solar-daily@lut.fi
Date: Wed, 1 Sep 93 22:58:57 MDT
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Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
X-Sequence: 976
Status: RO

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 27 AUG 93
                    ---------------------------------------


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

KER: Type of Measurement = Riometer.
     Type of Phenomenon  = Auroral Absorption.
     Start of Event: 0945Z
     Event Maximum : 1655Z,  Maximum Absorption: 2 dB
     End of Event  : 2400Z


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

     MUR  SAL  KHA  MAG  JUL  UPS  ASH  DIX  BOU  WLP  MAU  VBG  GOO  TAO  KEA  ARG  BER  NIC  DYS  LEA
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 2.9  3.0  3.4  3.4  3.1  3.0            3.6  3.3  2.9  3.4  3.0  3.4  2.9   B    B   2.9  3.1  3.4
01Z:                     2.9  3.0            3.5  3.1  3.0  3.3  3.1   A   3.0  3.1   B   2.9  3.2  3.3
02Z:                     2.9  3.0            3.5  3.1  3.3  2.9  3.3  3.3  3.3   B    B   3.0       3.5
03Z:                     3.0  3.0            3.4  3.0  3.2  3.2  3.1  3.1  3.3   B    B   3.1  3.1  3.4
04Z:                     3.1  3.3            3.4  3.0  3.3  3.4  3.0  3.1  3.4   B   3.5  3.3       3.5
05Z:                     3.4                 3.4  2.9  3.3  2.5  2.7  3.0  3.4   B   3.0  3.5       3.2
06Z: 3.0  2.9  3.1  3.4  3.0       3.0  3.1  3.2  2.9  3.2  3.2  2.4  2.8  3.3   B   3.0            3.2
07Z: 2.9  3.2  3.1  3.3  3.3       3.3  3.0  3.2  2.9  2.9  2.9   B   3.0  2.9   B   3.2  3.6       3.5
08Z: 3.0  3.1       3.2            3.2  2.9  3.2  2.9  2.8  3.1   A   3.0  2.9   B   2.9  3.3       3.4
09Z: 3.1  3.1       3.0            3.2  3.1  3.1  2.9  2.9  3.0  3.0  3.2  2.9   B   3.1  3.3       3.5
10Z:      3.1  3.0  3.2                 2.9  3.1  3.1  2.8  2.7  3.2  3.7  2.8  3.5  3.3  3.2       3.3
11Z:      3.1  3.0  3.0            3.0  3.1  3.0  3.3  2.7  2.7  3.2   A   2.7  3.1  3.7  3.4       3.1
12Z:      3.2  3.0  3.2                 3.1  3.2  3.5  3.0  3.1  3.3  3.5  3.0   A   3.3  3.1       3.3
13Z:           3.2  3.0            3.0  2.8  3.2  3.0  2.9  2.9  2.9  2.9  2.9   A   3.4  3.0       3.2
14Z:      3.1  2.8  2.8            3.0            3.2  2.9  4.0  3.0  2.8  2.9  2.9  2.9  3.0  2.9  2.9
15Z:      3.1  2.7  2.6            2.8  3.1       2.8  2.6  2.7  3.0  2.8  2.6   A   2.9  3.0  2.9  3.2
16Z:           2.7  2.7            3.0            2.8  2.4  2.7  2.8   A   2.4  3.0  2.8       3.0  2.8
17Z:           2.5                 2.8            2.8  3.3  2.9  2.6   A   3.4   A   3.1       2.8  3.5
18Z:           2.4                 2.7            2.7       2.4   A    A         A   3.0       2.7  3.6
19Z: 2.6       2.6  3.2            2.5  2.5       2.7       2.7   A    F        2.6  3.0       2.7  3.0
20Z:           2.8  3.0                           2.6       2.8  3.9   F        2.5  3.3       3.0  2.7
21Z: 3.1       3.2                 2.7            2.7       2.5  2.6   F        2.8  3.3       3.0  2.9
22Z:                                              3.1       3.6   A   3.2       3.5  3.9       3.1  3.3
23Z:                                              3.2       2.8  2.7  3.5        A   3.6       3.0  3.5
=========================================
Estimated Average Global M(3000)F2:  3.06.


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

     MUR  SAL  KHA  MAG  ASH  DIX
     ---  ---  ---  ---  ---  ---
00Z: 1.0  1.0  1.2  1.2
01Z:
02Z:
03Z:
04Z:
05Z:
06Z: 1.0  1.0  1.3  1.2  2.0  1.4
07Z: 1.0  1.0  1.1  1.1  1.6  1.7
08Z: 1.0  1.0  1.1  1.0  1.6  1.0
09Z: 1.7  1.0  1.2  1.1  1.9  1.2
10Z:      1.0  1.3  1.1       1.0
11Z:      1.0  1.2  1.5  1.9  1.0
12Z:      1.0  1.6  1.4       1.0
13Z:           1.2  1.5  1.8  2.0
14Z:      3.2  1.4  1.6  2.0  1.0
15Z:      2.7  1.1  1.5  1.8  1.2
16Z:      1.0  1.1  1.6  1.5  1.0
17Z:      1.0  1.1  1.7  1.5  1.4
18Z:      1.0  1.1  1.6  2.0  1.6
19Z: 1.2  1.0  1.0  1.2  1.5  1.0
20Z: 1.0  1.0  1.0  1.2       1.0
21Z: 1.0       1.1  1.2  1.5  1.0
22Z: 1.0  1.0  1.2  1.2       1.2
23Z: 1.4            1.2       1.2


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

     MUR  SAL  KHA  MAG  ASH  DIX
     ---  ---  ---  ---  ---  ---
00Z: 4.0  3.8  6.8  4.5
01Z:
02Z:
03Z:
04Z:
05Z:
06Z:      3.6  3.0       3.9  3.2
07Z:      4.8  3.3  2.5  3.7  4.2
08Z: 4.0  4.0  8.8  2.2  3.7  3.2
09Z:      4.0  8.5  2.2  3.7
10Z:           4.5            4.0
11Z:      3.0  6.0       3.6  3.6
12Z:           5.0            4.5
13Z:           5.5       3.0  5.0
14Z:           3.7       2.6  4.3
15Z:           3.0       3.4  5.0
16Z:      7.0  2.2       3.7  6.8
17Z:      5.3  2.3       2.6  6.8
18Z:      5.1  2.5  2.6       5.0
19Z: 4.3  5.0  3.0  2.0  2.5  3.8
20Z: 6.8  5.0  2.3  2.2       4.4
21Z: 6.8       3.0  2.4  3.0  4.0
22Z: 4.6  2.7  2.4  2.4       4.2
23Z: 5.0                      4.4


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

      MUR  SAL  KHA  MAG  JUL  UPS  ASH  DIX  POI  BOU  WLP  OTI  MAU  VBG  GOO  TAO  RES  KEA  ARG  BER  NIC  DYS  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  4.0  3.0  6.3  5.6  4.2  3.5                 6.3  6.7      11.0  7.4  6.3  6.3  5.8 11.0   B    B   4.5  7.9  7.5
01Z:                      3.8  3.0            4.5  6.4  6.2      12.0  6.5  5.4   A   5.6 12.0  5.3   B   4.3  7.9  7.4
02Z:                      3.8  2.4            4.3  6.6  5.8      13.6  8.4  4.0  8.5   F  13.6   B    B   4.2       8.1
03Z:                      3.6  2.8            4.2  6.2  5.3      11.0  6.7  3.1  7.6   I  11.0   B    B   4.3  7.0  7.7
04Z:                      3.8  3.6            4.0  5.3  4.7      10.1  6.4  2.7  7.5   I  10.1   B   4.1  5.5       6.5
05Z:                      4.8                 3.9  4.2  4.4      10.1  7.0  2.5  7.7   F  10.1   B   4.8  8.3       7.4
06Z:  4.9  5.6  6.0  5.7  5.8  4.7  8.2  5.4  4.9  3.7  4.1       6.8  4.5  2.5  7.8       6.8   B   4.7  8.7       7.4
07Z:  5.5  6.0  6.0  5.9  6.0  6.0  8.5  5.5  6.1  3.5  4.0       5.8  6.4   B   9.2       5.8   B   4.4  7.0       7.2
08Z:  5.8  6.0       5.4   A   5.8  8.2  5.3  6.3  3.6  3.7       5.5  4.3   A  10.4       5.5   B   3.2  6.7       6.7
09Z:  6.0  6.2       6.4       6.4  7.6  5.7  6.2  3.0  3.4       5.6  4.7  4.0 10.4       5.6   B   3.7  7.0       6.8
10Z:       6.0  7.1  7.5       6.7       6.0  6.8  2.9  3.7       5.6  7.2  4.3 11.6       5.6  4.9  5.2  7.1       5.5
11Z:       6.0  7.6  6.9       5.9  7.7  5.0  6.5  2.6  5.5       5.3  4.3  4.6   A        5.3  5.0  5.9  6.8       3.8
12Z:       5.4  7.4  5.8       6.7       4.6  6.7  2.4  6.2       5.3  5.1  5.0  5.7       5.3   A   6.5  7.0       3.6
13Z:            6.8  4.7       6.2  7.8  5.0  6.8  3.5  6.0  5.1  4.5  6.4  5.1  5.6       4.5   A   7.1  8.1       3.8
14Z:       4.5  5.2  3.7       6.4  7.1       6.6  4.0  6.8       4.5  5.0  5.5  5.4       4.5  5.9  7.4  8.2  6.5  3.8
15Z:       4.2  5.0  3.0       6.4  7.7  4.8  7.3  4.4  7.4  5.6  3.8  5.5  5.6  5.5       3.8   A   7.3  7.8  5.9  3.5
16Z:            4.6  2.6       5.9  7.6       6.8  5.9  8.5  6.7  3.3  6.0  6.1   A        3.3  6.9  9.3       9.2  3.5
17Z:            4.2                 6.6       8.0  6.2  7.9  7.0  3.8  6.1  6.3   A        3.8   A   8.9       9.1  4.4
18Z:            3.8            2.8  6.2       9.4  6.2  8.1  6.3  4.9  6.9   A    A              A   9.3       9.0  4.1
19Z:  4.0       4.0  3.8            5.7  4.8  9.2  6.1  7.5  5.8  4.9  6.9   A    F             6.6  8.6       9.1  2.8
20Z:            4.0  3.5       2.3            8.9  6.2  6.9  6.0  5.8  8.8  5.4   F             6.7  7.1       9.6  3.0
21Z:  4.0       4.2            3.0  5.3       8.5  6.2  7.6  7.8  6.8  8.2  5.5   F             7.6  6.7       9.5  3.0
22Z:                           3.2            6.9  6.0  7.2       7.5  7.9   A   4.7   G        6.2  5.9       8.8  4.6
23Z:                           2.5            6.0  5.8  6.0       7.8  5.8  4.2  5.3   F         A   7.2       7.0  7.9
=========================================
Estimated Average Global foF2:  5.98 MHz.


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

      MUR  SAL  KHA  MAG  JUL  UPS  ASH  DIX  BOU  WLP  MAU  VBG  GOO  TAO  KEA  ARG  BER  NIC  DYS  LEA
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 11.6  9.0 21.4 19.0 13.0 10.3           22.5 22.1 31.9 25.2 18.9 21.4 31.9   B    B  13.1 24.5 25.5
01Z:                     11.0  9.0           22.1 19.2 35.4 21.4 16.7   A  36.0 16.4   B  12.5 25.3 24.4
02Z:                     11.0  7.1           22.9 18.0 44.9 24.4 13.2 28.0 44.9   B    B  12.6      28.4
03Z:                     10.8  8.3           21.1 15.9 35.8 21.4  9.6 23.6 36.3   B    B  13.3 21.7 26.2
04Z:                     11.8 12.1           18.2 14.1 33.8 21.8  8.1 23.2 34.3   B  14.3 18.1      22.8
05Z:                     16.3                14.3 12.8 33.8 17.5  6.8 23.1 34.3   B  14.4 29.1      23.7
06Z: 14.7 16.2 18.6 19.4 17.4      24.6 16.7 12.0 11.9 22.1 14.4  6.0 21.8 22.4   B  14.1           23.7
07Z: 16.0 19.2 18.6 19.5 19.8      28.0 16.5 11.0 11.6 16.8 18.6   B  27.6 16.8   B  14.1 25.2      25.2
08Z: 17.4 18.6      17.3   A       26.2 15.4 11.3 10.7 15.7 13.3   A  31.2 16.0   B   9.3 22.1      22.8
09Z: 18.6 19.2      19.2           24.3 17.7  9.4  9.9 16.2 14.1 12.0 33.3 16.2   B  11.5 23.1      23.8
10Z:      18.6 21.3 24.0                17.4  9.1 11.5 15.4 19.4 13.8 42.9 15.7 17.1 17.2 22.7      18.1
11Z:      18.6 22.8 20.7           23.1 15.5  7.9 18.1 14.3 11.6 14.7   A  14.3 15.5 21.8 23.1      11.8
12Z:      17.3 22.2 18.6                14.3  7.6 21.7 15.9 15.8 16.5 19.9 15.9   A  21.4 21.7      11.9
13Z:           21.8 14.1           23.4 14.0 11.2 18.0 13.1 18.6 14.8 16.2 13.1   A  24.1 24.3      12.2
14Z:      13.9 14.6 10.4           21.3           21.8 13.1 20.0 16.5 15.1 13.1 17.1 21.5 24.6 18.9 11.0
15Z:      13.0 13.5  7.8           21.6 14.9      20.7  9.9 14.9 16.8 15.4  9.9   A  21.2 23.4 17.1 11.2
16Z:           12.4  7.0           22.8           23.8  7.9 16.2 17.1   A   7.9 20.7 26.0      27.6  9.8
17Z:           10.5                18.5           22.1 12.7 17.7 16.4   A  12.9   A  27.6      25.5 15.4
18Z:            9.1                16.7           21.9      16.6   A    A         A  27.9      24.3 14.8
19Z: 10.4      10.4 12.2           14.2 12.0      20.2      18.6   A    F       17.2 25.8      24.6  8.4
20Z:           11.2 10.5                          17.9      24.6 21.1   F       16.8 23.4      28.8  8.1
21Z: 12.4      13.4                14.3           20.5      20.5 14.3   F       21.3 22.1      28.5  8.7
22Z:                                              22.3      28.4   A  15.0      21.7 23.0      27.3 15.2
23Z:                                              19.2      16.2 11.3 18.6        A  25.9      21.0 27.6
===============================================
Estimated Average Global MUF(3000)F2: 18.29 MHz.


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

      BOU  TAO  ANC  CNV  PAL  SHE  OSA
     ---- ---- ---- ---- ---- ---- ----
00Z:       220  120  210  380
01Z:       270  110  170  430
02Z:       310  100  130  460
03Z:       280   99   94  400
04Z:       310   96   77  330
05Z:       370  100   76
06Z:       440   97   70
07Z:       520  100   60
08Z:       610  100   65
09Z:             79
10Z:             66
11Z:             56
12Z:             54   84
13Z:             52  150
14Z:       130   47  190
15Z:  100        46  190
16Z:  150  120   58  230
17Z:  200  120   72  310
18Z:  200  110   80  320
19Z:  200  110   88  350
20Z:  200  110   81  400
21Z:  180  120   77  400
22Z:  150  180   76  390
23Z:  120  190   78  290


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

MUR = Murmansk                   USSR                (N68E033)
SAL = Salekhard                  USSR                (N66E066)
KHA = Khabarovsk                 USSR                (N48E135)
MAG = Magadan                    USSR                (N60E151)
JUL = Juliusruh/Rugen            Germany             (N54E013)
UPS = Uppsala                    Sweden              (N60E018)
ASH = Ashkhabad                  USSR                (N37E058)
DIX = Dixon                      USSR                (N74E081)
POI = Poitiers                   France              (N46E000)
BOU = Boulder CO                 USA                 (N40W105) (GOES-2)
WLP = Wallops Island VA          USA                 (N37W075)
OTI = Ottawa                     Canada              (N45W076)
MAU = Maui HI                    USA                 (N20W157)
VBG = Vandenberg AFB CA          USA                 (N34W120)
GOO = Goose Bay                  Canada              (N53W060)
TAO = Taoyuan                    Taiwan              (N25E121) (ETS II)
RES = Resolute Bay               Canada              (N74W094)
KEA = Keakawapu HI               USA                 (N20W156)
ARG = Argentia                   Canada              (N48W053)
BER = Bermuda                    Bermuda             (N32W064)
NIC = Nicosia                    Cyprus              (N35E033)
DYS = Dyess AFB TX               USA                 (N32W099)
LEA = Learmonth                  Australia           (S21E115)
ANC = Anchorage AK               USA                 (N61W150) (GOES-3)
CNV = Cape Canaveral FL          USA                 (N28W080) (GOES-2)
PAL = Palehua HI                 USA                 (N21W158) (GOES-3)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)
KER = Kergulen Island            France              (S49E070)


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.


