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From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9312140538.AA12672@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 13 December
To: solar-daily@lut.fi
Date: Mon, 13 Dec 93 22:38:03 MST
X-Mailer: ELM [version 2.3 PL11]
Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
X-Sequence: 1190
Status: RO

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 13 DEC 93
                    ---------------------------------------


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

DIX: Type of Measurement = Riometer.
     Type of Phenomenon  = Auroral Absorption.
     Start of Event: 0000Z
     Event Maximum : 0050Z,  Maximum Absorption: 1 dB
     End of Event  : 0700Z


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

     MUR  ASH  SVE  DIX  MAG  SAL  JUL  TOM  BOU  MAU  VBG  GOO  EIE  TAO  CHU  ARG  BER  NIC  DYS
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 2.8  3.0  2.7       3.5                 3.7  3.0  3.3  3.0  3.3  3.8       3.3        C   3.5
01Z:      3.3  2.7       3.6  2.8                 3.2  3.5  3.0  3.3  3.7        B        3.6   A
02Z: 2.8  3.1  2.8       3.6  2.8  3.1            3.3  3.5  2.7  3.4  3.4       3.2       3.7
03Z: 3.1                 3.6       3.1            3.1                 3.4                 2.8
04Z: 3.0                 3.8  2.9  3.4            3.8                 3.6                 3.4
05Z: 3.1  3.4  3.1       3.6       3.6            3.3  4.0  2.4   B   3.4        B        3.7  2.8
06Z: 3.1  3.3       3.3  3.5  3.4  3.6  3.5       3.0  3.5   A    B   3.3       2.9       3.7  3.4
07Z: 3.5  3.2       3.4  3.3       3.4  3.3       2.8  2.9       2.3  3.5                  C   3.5
08Z: 3.5       3.3  3.5  3.2  3.5  3.6  3.4       3.3  3.6       3.2  3.5                 4.2   B
09Z:                     3.2            3.6       3.3  3.9       3.6  4.0                 3.9  2.9
10Z: 3.5  3.2  3.3       3.2  3.3       3.3       3.0  3.0        A   3.7                 3.8  3.2
11Z: 3.3  3.2  3.1  3.1  3.0  3.4       3.5       3.2  3.2        A   3.3            3.4  3.6  3.0
12Z: 3.4  3.3            3.2  3.1       3.1       3.0  3.1        A   3.1            3.4  3.6  3.1
13Z: 3.5  3.1                 3.4       3.3       3.8  3.1  3.3  4.0  3.5       3.4  3.5  3.6  3.2
14Z:      2.9  3.0       2.9  3.0       3.0       3.7  3.2  3.5  2.6  3.4   R   3.8       3.0  3.6
15Z: 3.4  2.9  3.2       3.0                      3.1  3.4  3.5  2.8  3.4   F   3.4       3.6  3.5
16Z:      2.8            2.9            3.2       3.2  3.2  3.6  2.3  3.4        A   3.5  3.5  3.8
17Z:      2.7            3.0            3.1       3.2  3.2  3.2  2.8  3.4   F   3.4   A   3.0  3.6
18Z:      2.8            3.0                           4.3  3.5  3.0  3.5  3.5  3.6  3.5  3.3  3.5
19Z:                                                   3.4  3.6  2.9  3.4  3.4  3.6  3.4  3.2  3.5
20Z:                                                   3.5  3.0  3.3  3.3  3.4   B   3.6  3.0  3.6
21Z:                                                   3.3  3.2  3.3  3.5  3.4   B   3.4  2.9  3.2
22Z:                                                   3.4  2.9  3.3  2.9   F    B   3.6  3.1  3.5
23Z:                                                   3.2  2.7  3.3  3.5        B   3.6  3.2  3.9
=========================================
Estimated Average Global M(3000)F2:  3.30.


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

     MUR  ASH  SVE  DIX  MAG  SAL  TOM
     ---  ---  ---  ---  ---  ---  ---
00Z: 1.0  1.6  1.8  1.6  1.3
01Z: 1.0  1.6  1.8       1.7  1.5
02Z: 1.0  1.6  1.8  2.2  1.6  1.0
03Z: 1.0                 1.7  1.0
04Z: 1.0       1.0       1.1  1.0
05Z: 1.0  1.4  1.6       1.0
06Z: 1.0  2.0  1.0  1.4  1.0  1.8  1.5
07Z: 1.0  2.0       1.3  1.0       1.5
08Z: 1.0       1.6  1.1  1.0  1.0  1.7
09Z:                     1.0       1.4
10Z: 1.0  2.0  1.0  1.0  1.0  1.0  1.0
11Z: 1.4  2.0  1.8  1.2  1.0  1.0  1.0
12Z: 1.0  2.0  1.6  1.3  1.0  1.0  1.0
13Z: 1.2  2.0  1.8  1.0  1.0  1.0  1.5
14Z: 1.5  2.0  1.8  1.0  1.0  1.0  2.0
15Z: 1.0  2.0  1.5  1.0  1.0  1.0
16Z:      2.0  1.0  1.0  1.0  1.0  1.5
17Z:      2.0  1.0  1.0  1.0  1.6  1.3
18Z:      1.7       1.0  1.0  1.5
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  ASH  SVE  DIX  MAG  SAL  TOM
     ---  ---  ---  ---  ---  ---  ---
00Z: 2.0            3.2
01Z: 2.7
02Z: 2.8            3.1
03Z:
04Z:                     1.9
05Z:      3.7            1.9
06Z:           3.0       2.2       2.4
07Z:      3.6            2.0       2.4
08Z:           2.8       1.9       2.4
09Z:                     1.9       1.9
10Z:           2.6  1.8  1.9       1.5
11Z:      3.0       1.7       1.3
12Z:      3.0       2.0
13Z:      3.0       2.9       1.4
14Z: 5.6  2.2       3.2
15Z:                3.2  2.0  2.0
16Z:           3.2  3.0  2.5  2.0
17Z:           2.6  5.2  2.1  2.6
18Z:      2.6       4.8  1.3  5.0
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  ASH  SVE  DIX  MAG  SAL  JUL  UPS  TOM  POI  BOU  MAU  VBG  GOO  EIE  TAO  CHU  ARG  BER  NIC  DYS
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  3.3  4.0  3.0       5.6        A             3.6  4.8 11.0  5.7  2.4  5.5  8.0       2.6        C   3.9
01Z:       3.5  3.0       5.9  1.8   A             3.5      11.1  4.0  2.3  4.4  7.2        B        3.9   A
02Z:  3.8  3.5  3.0       6.5  1.8  2.9            3.6      10.1  3.5  2.4  3.6  6.9       2.4       3.8
03Z:  3.3                 6.1  1.5  2.4            3.7       8.0                 8.4                 2.5
04Z:  2.5       3.8       5.9  1.9  2.2  2.2       3.8       6.1                 7.9                 2.4
05Z:  2.0  6.2  5.8       4.9       2.2            2.5       3.9  4.3  3.1   B   8.4        B        4.8  4.1
06Z:  2.0  6.9  6.3  3.0  3.6 14.3  2.2       6.7  2.7       2.6  3.2   A    B   8.3       3.1       5.9  4.1
07Z:  2.6  7.4       3.5  3.1       3.7       6.5  3.0       3.0  3.3       2.4  8.1                  C   2.9
08Z:  3.9       6.1  3.2  2.6  5.4  5.1       6.7            4.7  5.4       3.7  7.8                 4.5   B
09Z:                      2.0                 6.3            3.7  4.2       3.7  7.1                 5.8  3.0
10Z:  4.7  6.0  6.0  2.0  1.6 14.5            4.8            3.5  3.1        A   4.8                 6.3  3.3
11Z:  5.4  6.6  5.5  1.8  1.7 14.3            4.6            3.5  3.5        A   4.8            4.9  5.7  3.3
12Z:  4.2  6.7  5.5  2.2  2.4 12.4            2.8            2.6  3.3        A   5.3            6.9  5.5  3.2
13Z:  2.9  5.4  3.3            2.0            2.4            5.0  2.9  5.9  4.0  5.2       6.8  7.2  6.0  4.0
14Z:       5.2  3.0       3.1  1.8            2.9            2.8  3.3  6.4  2.7  4.7   R   6.1       4.7  6.3
15Z:  2.1  3.4  2.5       3.4                                2.5  6.2  7.2  2.6  3.9   F   7.3       3.5  8.3
16Z:       3.7            3.5                 2.0            2.0  7.9  7.0  3.8  4.1        A   8.8  2.7  8.2
17Z:       3.1  1.8       3.1                 2.3            4.3  6.8  6.4  2.2  4.2  5.9  6.9   A   2.3  6.7
18Z:       3.0            3.0                                     9.0  6.6  3.0  4.3  7.1  6.6  6.5  2.5  7.3
19Z:                                                              8.1  6.6  3.8  4.4  7.1  5.8  6.7  2.5  6.9
20Z:                                                              7.8  4.9  5.1  3.6  7.2   B   5.9  2.5  6.9
21Z:                                                              7.7  4.0  5.9  3.1  7.7   B   5.5  2.6  7.3
22Z:                                                              7.3  3.7  6.2  2.8  6.2   B   4.2  2.7  6.2
23Z:                                                              7.0  2.8  6.7  4.7        B   4.3  2.6  5.4
=========================================
Estimated Average Global foF2:  4.71 MHz.


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

      MUR  ASH  SVE  DIX  MAG  SAL  JUL  TOM  BOU  MAU  VBG  GOO  EIE  TAO  CHU  ARG  BER  NIC  DYS
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  9.2 12.0  8.1      19.6        A       17.8 33.5 18.8  7.2 18.1 30.4       8.6        C  13.7
01Z:      11.6  8.1      21.2  5.0   A            35.5 14.0  6.9 14.5 26.6        B       14.0   A
02Z: 10.6 10.8  8.4      23.4  5.0  9.0           33.8 12.2  6.5 12.2 23.5       7.7      14.1
03Z: 10.2                22.0       7.4           24.8                28.6                 7.0
04Z:  7.5                22.4  5.5  7.5           23.5                28.4                 8.2
05Z:  6.2 21.1 18.0      17.6       7.9           12.9 17.2  7.4   B  28.6        B       17.8 11.5
06Z:  6.2 22.8       9.9 12.6 48.6  7.9 23.4       7.7 11.2   A    B  27.4       9.0      21.8 13.9
07Z:  9.1 23.7      11.9 10.2      12.6 21.4       8.4  9.6       5.5 28.4                  C  10.2
08Z: 13.7      20.1 11.2  8.3 18.9 18.4 22.8      15.5 19.4      11.8 27.3                18.9   B
09Z:                      6.4           22.7      12.2 16.4      13.3 28.4                22.6  8.7
10Z: 16.4 19.2 19.8       5.1 47.8      15.8      10.3  9.3        A  17.8                23.9 10.6
11Z: 17.8 21.1 17.0  5.6  5.1 48.6      16.1      11.0 11.2        A  15.8           16.7 20.5  9.9
12Z: 14.3 22.1            7.7 38.4       8.7       7.8 10.2        A  16.4           23.5 19.8  9.9
13Z: 10.2 16.7                 6.8       7.9      19.2  9.0 19.5 16.0 18.2      23.1 25.2 21.6 12.8
14Z:      15.1  9.0       9.0  5.4       8.7      10.4 10.6 22.4  7.0 16.0   R  23.2      14.1 22.7
15Z:  7.1  9.9  8.0      10.2                      7.8 21.1 25.2  7.3 13.3   F  24.8      12.6 29.1
16Z:      10.4           10.2            6.4       6.5 25.3 25.2  8.7 13.9        A  30.8  9.4 31.2
17Z:       8.4            9.3            7.1      14.0 21.8 20.5  6.2 14.3   F  23.5   A   6.9 24.1
18Z:       8.4            9.0                          38.7 23.1  9.0 15.1 24.9 23.8 22.8  8.2 25.6
19Z:                                                   27.5 23.8 11.0 15.0 24.1 20.9 22.8  8.0 24.1
20Z:                                                   27.3 14.7 16.8 11.9 24.5   B  21.2  7.5 24.8
21Z:                                                   25.4 12.8 19.5 10.8 26.2   B  18.7  7.5 23.4
22Z:                                                   24.8 10.7 20.5  8.1   F    B  15.1  8.4 21.7
23Z:                                                   22.4  7.6 22.1 16.4        B  15.5  8.3 21.1
===============================================
Estimated Average Global MUF(3000)F2: 15.53 MHz.


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

      BOU  TAO  ANC  CNV  PAL  SHE  OSA
     ---- ---- ---- ---- ---- ---- ----
00Z:       250  160  120  410
01Z:   74  240  120  110
02Z:   51  280            340
03Z:   42  370
04Z:   42  380            110
05Z:   42  350   97  100   69
06Z:   44  330   94  110   45
07Z:   44  280   94  110   44
08Z:   37  240   93  110   44
09Z:   35  190   91  110   47
10Z:   38  160   91  120   49
11Z:   38  150   89  120   55
12Z:   37  140   87  110   64
13Z:       130   88  160   48
14Z:   42  130   89  180   28
15Z:   77  120   92  210   30
16Z:  110  130   93  250   31
17Z:  120  130   95  210   61
18Z:  150  120  110  200  120
19Z:  180  110  150  190  190
20Z:  180   94  200  190  260
21Z:  160   90  230  190  310
22Z:  150  120  200  170  390
23Z:       210  170  160  520


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

MUR = Murmansk                   USSR                (N68E033)
ASH = Ashkhabad                  USSR                (N37E058)
SVE = Sverdlovsk                 USSR                (N56E061)
DIX = Dixon                      USSR                (N74E081)
MAG = Magadan                    USSR                (N60E151)
SAL = Salekhard                  USSR                (N66E066)
JUL = Juliusruh/Rugen            Germany             (N54E013)
UPS = Uppsala                    Sweden              (N60E018)
TOM = Tomsk                      USSR                (N56E085)
POI = Poitiers                   France              (N46E000)
BOU = Boulder CO                 USA                 (N40W105)
MAU = Maui HI                    USA                 (N20W157)
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)
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)
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.


