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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 09 December
To: solar-daily@lut.fi
Date: Thu, 9 Dec 93 21:11:40 MST
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Status: RO

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 09 DEC 93
                    ---------------------------------------


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

     MUR  ASH  SVE  SAL  DIX  MAG  TOM  JUL  WLP  MAU  VBG  GOO  EIE  TAO  CHU  KEA  ARG  BER  NIC  DYS
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z:      3.1                 3.3        C   3.2  3.3       4.2  2.9  3.3             B        3.4
01Z:      2.9                 3.2        C        3.3                 3.7                      3.3
02Z:      3.1                 3.4        C        3.4       2.2        F                       3.8
03Z: 2.7                      3.5        C   2.6  3.6       2.5   B    F              B    B   3.0  3.2
04Z:      3.3       3.4  3.4  3.6        C        3.8       2.3  3.6   F              B    B   3.3
05Z:      3.2  3.2  3.3  3.2  3.6        C        3.5        B        3.3             B    B   3.8
06Z:      3.2  3.0  3.3  3.1  3.4        C   3.0  2.8        B   3.0  3.6             B    B   3.8  3.4
07Z:                                    3.4  2.9  3.2        B   4.1  3.5             B   3.2  3.8  2.5
08Z: 3.3  3.1  3.3                      3.6  2.7  3.3        A    A   3.3             B   3.0  3.3  3.0
09Z: 3.2  3.0  2.9  3.4       2.8            2.8  3.4        B    B   3.6             B        3.5  3.1
10Z: 3.6  3.3            3.4       3.4        A   3.0       3.5   B   3.4             B   2.7  3.6  3.2
11Z: 3.6  3.3  3.2  3.4  2.9  2.8            2.7  2.9       2.6  4.5  3.1             B   3.3  3.3  3.2
12Z: 3.4            3.2                      3.5  3.3       3.5  3.1  3.5       3.4  3.5  3.6  3.5  3.4
13Z: 3.5  3.1       3.3  3.1                 3.5  3.6       3.3  4.5  3.4       3.6  3.7  3.3  3.7  3.4
14Z: 3.4  3.3       3.3       2.9            3.3  3.8       3.3   A   3.2   R   3.9  3.6       3.6  3.6
15Z: 3.4  3.2  3.2       2.8       2.6       3.6  3.0       3.5  2.5  2.8   F   3.0  3.5  3.2  3.8  3.6
16Z: 3.3  2.7            3.1                 3.3  3.0       3.8  2.5  2.8  3.4  3.1  3.5  3.5  3.7  3.7
17Z:      3.4                                3.3  3.5       3.5  2.7  3.0  3.3  3.5  3.1  3.7  3.6  3.5
18Z:                     3.1                 3.2            3.2  2.5  3.2  3.3       3.6  3.6  3.4  3.0
19Z:                                         3.4            3.1  3.0  3.6  3.3       3.3  3.5  3.3  3.6
20Z:                                         3.4            3.2  3.1  2.7   F        3.7       2.9  3.4
21Z:                                         3.4            3.1       3.7  3.4       3.3  3.2  3.1  3.7
22Z:                                         3.4            3.2  3.1  2.9            3.1   B   3.0  3.6
23Z:                                         3.0       3.4  2.2  3.2  3.7            3.3   B   3.0  3.7
=========================================
Estimated Average Global M(3000)F2:  3.28.


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

     MUR  ASH  SVE  SAL  DIX  MAG  TOM
     ---  ---  ---  ---  ---  ---  ---
00Z: 1.3  1.2            1.4  1.0
01Z: 1.0  1.1            1.6  1.0
02Z:      1.4            2.1  1.1
03Z: 1.0       1.8       1.5  1.3
04Z: 1.0  1.4  1.5  1.0  1.5  1.0
05Z:      1.2  1.0  2.0  2.1  1.0
06Z: 1.0  1.6  1.0  2.5  2.5  1.0
07Z:
08Z: 1.0  1.5  1.0
09Z: 7.3  1.5  1.0  2.7       1.0
10Z: 1.2  1.4  1.0       1.2       1.0
11Z: 1.2  1.5  1.0  1.6  1.0  1.0
12Z: 1.0       1.7  1.5       1.0
13Z: 1.4  1.5  1.5  1.5  1.0  1.0
14Z: 1.0  1.1  1.5  1.5  1.0  1.0
15Z: 1.2  1.5  1.8       1.0  1.0  1.0
16Z: 1.1  1.2            1.0  1.0
17Z:      1.2            1.0  1.0
18Z:                     1.0  1.0
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  ASH  SVE  DIX  MAG  TOM
     ---  ---  ---  ---  ---  ---
00Z: 4.0            3.0  3.3
01Z: 2.7            3.0  1.5
02Z:                3.1  1.6
03Z:                2.2  1.4
04Z: 2.0            1.6  2.0
05Z:           2.0       1.7
06Z: 3.4       5.4       1.9
07Z:
08Z: 1.8       2.8
09Z: 2.0       3.0
10Z:           3.0            4.0
11Z: 2.2  3.0  2.6  2.0
12Z:
13Z:                1.7
14Z:                1.8  3.0
15Z:                2.6       3.6
16Z:                2.6  2.2
17Z:                2.4
18Z:                5.0
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  ASH  SVE  SAL  DIX  MAG  TOM  JUL  WAR  POI  WLP  MAU  OTI  VBG  GOO  EIE  TAO  CHU  KEA  ARG  BER  NIC  DYS
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:       3.4                 5.2        C    A   2.7  3.2 13.0            8.1  3.7 11.4             B        3.1
01Z:       3.5                 5.8        C    R   2.6      11.0                     14.8                      3.1
02Z:       4.0                 6.6        C    C   2.7       9.0            2.3        F                       3.4
03Z:  2.0       2.5       2.3  7.1        C    C   2.6  2.4  8.8            2.7   B    F              B    B   2.4  3.2
04Z:       6.6  3.0  2.2  2.8  6.5        C    C   2.4       6.7            3.2  3.9   F              B    B   2.5
05Z:       7.4  6.0  3.8  3.0  5.2        C    C   2.0       3.7             B       14.0             B    B   5.4
06Z:       6.6  6.3  4.4  3.8  4.4        C   3.3  1.9  2.4  2.9             B   2.9 12.4             B    B   6.3  2.8
07Z:                                     3.6  4.6  3.0  2.4  3.8             B   2.6 11.6             B   2.9  6.3  2.8
08Z:  3.6  7.0  6.3                      5.5  6.2       2.5  4.4             A    A  12.4             B   3.0  6.9  2.9
09Z:  4.6  8.6  6.3  4.8       1.8                      2.5  3.1             B    B  11.4             B        7.5  3.2
10Z:  5.1  7.0  6.5       3.0       6.2                  A   2.7            9.2   B   8.5             B   3.0  7.3  3.1
11Z:  5.3  8.1  5.5 13.7  2.0  2.0                      3.0  3.2            7.6  3.5  6.1             B   5.7  6.6  2.8
12Z:  3.6       5.5 13.0                                5.0  3.5            4.7  4.6  6.4       3.5  6.2  6.9  6.9  2.7
13Z:  3.5  5.4  3.5  2.6  1.9                           5.9  4.8  4.7       5.6  3.0  6.1       4.8  6.3  7.5  7.3  3.9
14Z:  3.6  4.3  3.0  2.0       2.5                      7.0  2.5  5.5       6.3   A   4.1   R   2.5  7.4       6.2  6.7
15Z:  3.0  3.3  2.6       4.0       2.6                 6.6  2.5  6.2       6.4  3.6  2.7   F   1.5  6.2  7.5  4.3  6.8
16Z:  2.0  3.0            4.0                           8.1  2.8  6.9       6.6  3.8  2.6  5.3  2.8  6.8  7.7  3.4  6.9
17Z:       2.5                                          7.2  5.2  6.9       6.7  3.1  2.8  5.8  5.2  6.5  7.6  3.5  7.5
18Z:                      3.8                           7.5       7.0       6.6  3.4  3.2  5.4       6.2  7.0  2.8  7.9
19Z:                                                    7.3                 5.9  4.6  3.1  5.8       5.7  6.7  2.6  8.3
20Z:                                                    6.5                 4.9  5.3  3.2   F        4.4       2.8  8.9
21Z:                                                    6.4                 4.3       2.3  6.2       3.8  5.8  2.6  7.4
22Z:                                                    4.1                 3.7  5.8  2.6            3.6   B   2.9  6.4
23Z:                                                    4.0            6.8 10.7  5.7  5.3            3.1   B   3.3  6.3
=========================================
Estimated Average Global foF2:  5.04 MHz.


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

      MUR  ASH  SVE  SAL  DIX  MAG  TOM  JUL  WLP  MAU  VBG  GOO  EIE  TAO  CHU  KEA  ARG  BER  NIC  DYS
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:      10.5                17.2        C  10.2 42.9      34.0 10.7 37.6             B       10.5
01Z:      10.2                18.6        C       36.8                54.8                     10.2
02Z:      12.4                22.4        C       30.6       5.1        F                      12.9
03Z:  5.4                     24.9        C   6.2 31.7       6.8   B    F              B    B   7.2 10.2
04Z:      21.8       7.5  9.5 23.4        C       25.1       7.4 14.0   F              B    B   8.2
05Z:      23.7 19.2 12.5  9.6 18.7        C       13.1        B       46.2             B    B  20.5
06Z:      21.1 18.9 14.5 11.8 15.0        C   7.2  8.3        B   8.7 44.6             B    B  23.9  9.5
07Z:                                    12.2  7.0 12.2        B  10.7 40.6             B   9.3 23.9  7.0
08Z: 11.9 21.7 20.8                     19.8  6.8 14.5        A    A  40.9             B   9.0 22.8  8.7
09Z: 14.7 25.8 18.3 16.3       5.0            7.0 10.5        B    B  41.0             B       26.2  9.9
10Z: 18.4 23.1           10.2      21.1        A   8.0      32.2   B  28.9             B   8.1 26.3  9.9
11Z: 19.1 26.7 17.6 46.6  5.8  5.6            8.1  9.3      19.8 15.8 18.9             B  18.8 21.8  9.0
12Z: 12.2           41.6                     17.5 11.7      16.4 14.3 22.4      11.9 21.7 24.8 24.1  9.2
13Z: 12.2 16.7       8.6  5.9                20.6 17.3      18.5 13.5 20.7      17.3 23.3 24.8 27.0 13.3
14Z: 12.2 14.2       6.6       7.2           23.1  9.6      20.8   A  13.1   R   9.8 26.6      22.3 24.1
15Z: 10.2 10.6  8.3      11.2       6.8      23.8  7.5      22.4  9.0  7.6   F   4.5 21.7 24.0 16.3 24.5
16Z:  6.6  8.1           12.4                26.7  8.5      25.1  9.5  7.3 18.0  8.7 23.8 26.9 12.6 25.5
17Z:       8.5                               23.8 17.9      23.4  8.4  8.4 19.1 18.2 20.1 28.1 12.6 26.2
18Z:                     11.8                24.0           21.1  8.5 10.2 17.8      22.3 25.2  9.5 23.7
19Z:                                         24.8           18.3 13.8 11.2 19.1      18.8 23.4  8.6 29.9
20Z:                                         22.1           15.7 16.4  8.6   F       16.3       8.1 30.3
21Z:                                         21.8           13.3       8.5 21.1      12.5 18.6  8.1 27.4
22Z:                                         13.9           11.8 18.0  7.5           11.2   B   8.7 23.0
23Z:                                         12.0      23.1 23.5 18.2 19.6           10.2   B   9.9 23.3
===============================================
Estimated Average Global MUF(3000)F2: 16.54 MHz.


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

      TAO  ANC  CNV  PAL  BOU  SHE  OSA
     ---- ---- ---- ---- ---- ---- ----
00Z:  520  130            110
01Z:  680  140            100
02Z:  740                  76
03Z:  810  120  110  190   53
04Z:  810  100  110  120   40
05Z:  800   90  100   69   35
06Z:  790   84   95   48   32
07Z:  700   82   94   54   28
08Z:  640   81  100   49   25
09Z:  480   81  100   40   23
10Z:  280   80   99   38   29
11Z:  170   81   95   39
12Z:  150   79   98   51   29
13Z:  120   79  140   58   27
14Z:  110   79  180   38   33
15Z:  110   83  200   35   66
16Z:  110   85  190   40   84
17Z:  110   89  200   70
18Z:  110  110  220  120
19Z:  110  140  240  170  210
20Z:   93  160  230  250  200
21Z:   88  180  220  270
22Z:  130  180  160  290  140
23Z:  190  220  140  400


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

MUR = Murmansk                   USSR                (N68E033)
ASH = Ashkhabad                  USSR                (N37E058)
SVE = Sverdlovsk                 USSR                (N56E061)
SAL = Salekhard                  USSR                (N66E066)
DIX = Dixon                      USSR                (N74E081)
MAG = Magadan                    USSR                (N60E151)
TOM = Tomsk                      USSR                (N56E085)
JUL = Juliusruh/Rugen            Germany             (N54E013)
WAR = Warsaw                     Poland              (N52W021)
POI = Poitiers                   France              (N46E000)
WLP = Wallops Island VA          USA                 (N37W075)
MAU = Maui HI                    USA                 (N20W157)
OTI = Ottawa                     Canada              (N45W076)
VBG = Vandenberg AFB CA          USA                 (N34W120)
GOO = Goose Bay                  Canada              (N53W060)
EIE = Eielson AFB AK             USA                 (N64W147)
TAO = Taoyuan                    Taiwan              (N25E121)
CHU = Churchill                  Canada              (N58W094)
KEA = Keakawapu HI               USA                 (N20W156)
ARG = Argentia                   Canada              (N48W053)
BER = Bermuda                    Bermuda             (N32W064)
NIC = Nicosia                    Cyprus              (N35E033)
DYS = Dyess AFB TX               USA                 (N32W099)
ANC = Anchorage AK               USA                 (N61W150)
CNV = Cape Canaveral FL          USA                 (N28W080)
PAL = Palehua HI                 USA                 (N21W158)
BOU = Boulder CO                 USA                 (N40W105)
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.


