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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 31 July
To: solar-daily@lut.fi
Date: Mon, 2 Aug 93 9:38:09 MDT
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Status: OR

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 31 JUL 93
                    ---------------------------------------


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

     VBG  GOO  EIE  TAO  RAM  ARG  BER  NIC  DYS  TOW  MUR  SAL  TOM  DIX  KHA  ASH  MAG
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 3.2  3.2  2.9  3.5  3.3  3.3  3.4   C    A   3.5       3.0  2.9  2.8  3.0  2.8  2.8
01Z: 3.1  3.1  2.9  3.0  3.5  3.0  3.1  2.9  3.0       2.4  3.1       2.9  3.3  3.0  3.2
02Z: 3.1  2.9  2.7  2.8  3.1  2.9  3.2   C   3.1  3.4  3.0  3.1  3.0  2.8  3.0  2.8  3.2
03Z: 3.1  2.4  3.1  2.9  3.0   B   2.7  2.9  3.2  3.3  3.1  2.7  3.1       2.9  3.0
04Z: 3.2  2.7  3.0  2.7  2.8  2.9  2.9  2.8  2.9  3.2  3.1  2.9  3.0       3.0  2.9
05Z: 3.3  2.9  2.3  2.7  2.9  2.8  3.1  3.2  2.8  3.6            3.0  2.8  3.0  2.9  3.0
06Z: 3.2  2.7  3.3  2.9  2.8   B   2.9  3.6  3.1  3.4            3.0       3.0       3.0
07Z: 3.0  3.0  2.8  3.2  2.8   B   3.2  3.5  2.9  3.5       3.0  3.2  2.8  2.8       3.0
08Z: 2.9  3.3  3.2  3.3  3.0   B   3.7  2.9  3.1  3.4  2.8  2.9  3.0  2.8            3.1
09Z: 3.0  3.3  3.0  3.3  3.0  4.0  3.5  3.2  3.0       2.8  3.1  3.1  2.7       2.9  3.0
10Z: 3.0       3.0  3.0  3.4  3.4  3.5  2.9  2.9  2.6  3.0  3.1  3.1  2.8            3.2
11Z: 3.2       2.9  3.1  3.4   A   3.4  3.0  3.2       2.9  3.1       2.8       2.6
12Z: 2.8       2.7       3.7  3.3  3.2  3.0  3.3  2.9
13Z: 3.0       2.7       3.0   A   3.0  3.1  3.1
14Z: 3.5       2.7       3.3   B   3.3  3.1  3.0
15Z: 2.7       2.8       3.5   B   3.0  3.2  3.0
16Z: 2.9       2.9       3.1   A   2.9       3.1
17Z: 2.9       2.9       3.3   A   3.0       2.7
18Z: 2.8       2.8       2.9   A   2.9       3.0
19Z: 2.8       3.0       3.1  3.0            3.0
20Z:
21Z:
22Z:
23Z:
=========================================
Estimated Average Global M(3000)F2:  3.03.


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

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


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

     MUR  SAL  TOM  DIX  KHA  ASH  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z: 8.3  4.0  2.7  4.0  5.7       4.2
01Z: 5.0  4.2  7.0  4.0  5.6  3.0  7.1
02Z: 4.5  3.6  6.2  3.2  6.5  4.0  5.4
03Z: 3.5  4.0  6.3       5.2  3.9
04Z: 3.0  3.8  7.2  3.4       3.2
05Z:           7.0  3.1       4.3  3.2
06Z:           5.0  3.2  6.0       3.2
07Z:      6.7  5.3  3.2  4.9       3.3
08Z:      4.9                      4.0
09Z:      4.8       3.0       4.0  4.5
10Z: 3.3  3.6       4.5            5.9
11Z:      4.3                 3.7
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      CAM  VBG  GOO  EIE  TAO  RAM  ARG  BER  NIC  DYS  TOW  MUR  SAL  TOM  DIX  KHA  ASH  MAG
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  6.3  5.5  6.9  5.2  6.0  5.8  6.2  4.7   C    A   8.0       4.6  5.2  5.0  7.8  4.6  5.7
01Z:  7.2  5.7  5.9  5.4  6.5  4.5  5.8  4.8  4.9  5.6       4.2  5.1       5.2  6.7  4.4  5.9
02Z:       6.7  4.7  5.3  7.9  5.4  5.1  4.4   C   6.1  7.3  4.8  5.0  6.2  5.4  6.0  5.0  5.5
03Z:  8.5  6.3  4.4  5.4  8.3  4.7   B   5.5  4.4  5.9  7.0  5.0  5.2  6.3       5.9  6.0
04Z:  7.3  6.0  4.2  5.3  8.8  4.9  4.9  5.4  5.4  5.0  7.0  5.0  5.6  6.0  5.2  6.0  6.6
05Z:  6.3  5.7  3.6 10.9  9.0  4.8  4.8  4.9  6.8  4.9  6.9  5.2       6.0  5.7  6.2  7.5  5.7
06Z:  6.7  5.1  3.7  4.6 10.4  4.4   B   5.3  8.0  4.7  7.1            6.2  5.6  5.8       5.5
07Z:  5.6  4.5  3.7  5.0 11.4  4.4   B   4.8  5.8  4.3  6.2       5.6  6.6  5.5  5.7       5.6
08Z:  4.5  4.3  4.0  4.0 11.5  3.8   B   4.4  6.1  4.4  5.6  5.6  5.7  6.5  5.5            5.9
09Z:  3.9  4.1  4.3  4.1  9.4  3.5  4.1  4.3  6.1  3.7  4.3  5.7  5.7  5.9  5.2       6.8  6.4
10Z:  3.9  4.2       3.9  9.0  4.2  5.4  5.5  6.6  3.4  3.1  5.9  5.4  5.7  5.4            7.8
11Z:  3.9  4.9       3.8  8.4  5.0   A   6.1  7.4  3.5  3.2  5.6  5.6       5.3       6.8
12Z:  3.2  4.3       4.2       5.9  5.7  5.7  6.7  3.9  3.7
13Z:  3.2  3.9       4.4       5.8   A   6.5  6.7  4.5  3.6
14Z:  3.6  4.4       4.8       6.2   B   6.6  6.8  5.1  2.2
15Z:  3.9  5.4       5.2       5.8   B   6.6  7.0  6.0  3.0
16Z:  3.9  5.9       5.7       6.5   A   7.0       6.3
17Z:  4.2  6.3       5.3       6.1   A   6.7       6.4
18Z:  4.2  6.0       5.3       6.6   A   6.3       6.6
19Z:  3.9  6.3       5.4       6.1  5.8            6.7
20Z:  3.1
21Z:  3.4
22Z:  6.0
23Z:
=========================================
Estimated Average Global foF2:  5.55 MHz.


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

      VBG  GOO  EIE  TAO  RAM  ARG  BER  NIC  DYS  TOW  MUR  SAL  TOM  DIX  KHA  ASH  MAG
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z: 17.6 22.1 15.1 21.0 19.1 20.5 16.0   C    A  28.0      13.8 15.1 14.0 23.4 12.9 16.0
01Z: 17.7 18.3 15.7 19.5 15.8 17.4 14.9 14.2 16.8      10.1 15.8      15.1 22.1 13.2 18.9
02Z: 20.8 13.6 14.3 22.1 16.7 14.8 14.1   C  18.9 24.8 14.4 15.5 18.6 15.1 18.0 14.0 17.6
03Z: 19.5 10.6 16.7 24.1 14.1   B  14.9 12.8 18.9 23.1 15.5 14.0 19.5      17.1 18.0
04Z: 19.2 11.3 15.9 23.8 13.7 14.2 15.7 15.1 14.5 22.4 15.5 16.2 18.0      18.0 19.1
05Z: 18.8 10.4 25.1 24.3 13.9 13.4 15.2 21.8 13.7 24.8           18.0 16.0 18.6 21.8 17.1
06Z: 16.3 10.0 15.2 30.2 12.3   B  15.4 28.8 14.6 24.1           18.6      17.4      16.5
07Z: 13.5 11.1 14.0 36.5 12.3   B  15.4 20.3 12.5 21.7      16.8 21.1 15.4 16.0      16.8
08Z: 12.5 13.2 12.8 38.0 11.4   B  16.3 17.7 13.6 19.0 15.7 16.5 19.5 15.4           18.3
09Z: 12.3 14.2 12.3 31.0 10.5 16.4 15.1 19.5 11.1      16.0 17.7 18.3 14.0      19.7 19.2
10Z: 12.6      11.7 27.0 14.3 18.4 19.2 19.1  9.9  8.1 17.7 16.7 17.7 15.1           25.0
11Z: 15.7      11.0 26.0 17.0   A  20.7 22.2 11.2      16.2 17.4      14.8      17.7
12Z: 12.0      11.3      21.8 18.8 18.2 20.1 12.9 10.7
13Z: 11.7      11.9      17.4   A  19.5 20.8 13.9
14Z: 15.4      13.0      20.5   B  21.8 21.1 15.3
15Z: 14.6      14.6      20.3   B  19.8 22.4 18.0
16Z: 17.1      16.5      20.1   A  20.3      19.5
17Z: 18.3      15.4      20.1   A  20.1      17.3
18Z: 16.8      14.8      19.1   A  18.3      19.8
19Z: 17.6      16.2      18.9 17.4           20.1
20Z:
21Z:
22Z:
23Z:
===============================================
Estimated Average Global MUF(3000)F2: 16.85 MHz.


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

      TAO  ANC  CNV  PAL  SHE  OSA  BOU
     ---- ---- ---- ---- ---- ---- ----
00Z:  230   97  150  280            120
01Z:  240   87  160  300            120
02Z:  230   92  130  350            120
03Z:  270   93  100  370            100
04Z:       100   93  310             67
05Z:  290  100   94  240             42
06Z:  340  110   89  180             40
07Z:  390  100   87  190             41
08Z:  360   85   75  190             38
09Z:  280   56   60  200             31
10Z:  210   36       210             31
11Z:  140   20       190             31
12Z:  120   19   76  160
13Z:   93   17  110  130             32
14Z:   65   16  150   93             31
15Z:   98   35  160   78             31
16Z:  100   68  190   60
17Z:  120  100  210   82             30
18Z:  110  120  200  100             30
19Z:       120  200  120             29
20Z:       120                       31
21Z:       120
22Z:
23Z:                                 30


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

CAM = Camden                     Australia           (S34E151)
VBG = Vandenberg AFB CA          USA                 (N34W120)
GOO = Goose Bay                  Canada              (N53W060)
EIE = Eielson AFB AK             USA                 (N64W147)
TAO = Taoyuan                    Taiwan              (N25E121)
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)
MUR = Murmansk                   USSR                (N68E033)
SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
DIX = Dixon                      USSR                (N74E081)
KHA = Khabarovsk                 USSR                (N48E135)
ASH = Ashkhabad                  USSR                (N37E058)
MAG = Magadan                    USSR                (N60E151)
PAL = Palehua HI                 USA                 (N21W158)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)
BOU = Boulder CO                 USA                 (N40W105)


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.


