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From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9306261647.AA12068@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 25 June
To: solar-daily@lut.fi
Date: Sat, 26 Jun 93 10:47:25 MDT
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Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
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Status: OR

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 25 JUN 93
                    ---------------------------------------


REPORTS OF SUDDEN IONOSPHERIC DISTURBANCES
------------------------------------------

HIR: Type = Slow S-SWF,  Importance=3,  Start=0303Z, Max=0313Z, End=0350Z
     Time Accuracy not within 2 minutes,  Time Confidence=Fair


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

     MUR  ASH  SAL  TOM  MAG  JUL  MAU  VBG  GOO  EIE  TAO  RES  CHU  KEA  RAM  ARG  NIC  DYS  TOW
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z:                3.4       2.6  2.8  4.4  2.7  3.2   A    F        2.8  2.8   B        2.7  3.4
01Z: 2.6       2.5  2.6       2.6  2.8  3.1  2.8  3.0   A   2.8       2.8  2.7   B        2.9  3.4
02Z:           2.5  2.4       2.8  2.8  3.2  2.8  3.4   A    F        2.9  3.0   B        3.0  2.5
03Z:           2.3  2.8       2.8  3.0  3.0  2.2  2.9   A   2.8       3.1  2.7   B        2.9  3.1
04Z:           2.3  2.9       2.5  3.2  2.7  2.8  2.8   A   2.9       3.2  2.6   B        2.8  3.3
05Z:      2.9  2.6  2.7       2.7  3.0  3.0   A   3.0   I   3.0       3.0  2.9   B        2.9
06Z:      2.7  2.6       2.8  2.5  3.0  3.1  2.4  2.8  2.8            3.0  2.7   B        2.9
07Z:                          2.8  3.0  2.6  2.7  2.8   A             3.0  2.8   B        2.6  3.4
08Z:                          2.8  3.0  2.8  2.2  2.9  3.1            3.0  2.6   A        3.0
09Z:                               2.8  3.0   B    A   3.2            2.9  2.6  2.7       2.8
10Z:                               2.9  3.4   A    A   3.2            2.9  3.1   B        2.8  3.4
11Z:                               2.7  2.4  3.9   B    A             2.7  3.3   B        2.7
12Z:                               2.6  3.3  3.7   A   2.9            2.6  2.7   B        3.4
13Z:                               2.8  3.0  3.7   A   2.8        R   2.8  3.0   B        3.1
14Z:                               3.0  3.2  3.7   A   3.0        R   3.1  2.8   B        2.8  3.8
15Z:                               2.7  3.3  3.5       2.9        R   2.7   A    A        4.1  3.0
16Z:                               3.0   A   3.3  2.5  3.2        R   3.0  2.5  2.9  2.8  4.1
17Z:                               3.1   A   3.6  3.3  2.9        R   3.1  3.5   B   3.1  2.5  3.2
18Z:                                    2.8  2.5  4.2  3.2        R        3.5   A   3.3  3.0  2.6
19Z:                                    2.6  3.1  3.6  3.2       2.4       2.5   B   3.2   A
20Z:                                     A   3.0  3.4  3.1       2.6       2.7   B   3.0  2.7
21Z:                                     A   2.7  3.8  2.9   F             2.8   B   2.8  2.9  3.4
22Z:                                    2.8  2.9  3.4  3.0   F             2.9   B        2.8
23Z:                                    2.7  3.0  3.2  3.0  2.6            3.0   B        2.8
=========================================
Estimated Average Global M(3000)F2:  2.95.


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

     MUR  ASH  SAL  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z: 1.5            1.0       1.3  1.0
01Z: 1.0       1.0  1.0            1.1
02Z: 1.0       1.0  1.0  1.8
03Z: 1.0       1.0  1.0
04Z: 1.0       1.0  1.0            1.0
05Z: 1.0  2.2  1.0  1.3  3.1
06Z: 1.0  3.4  1.0  1.0            1.0
07Z:
08Z:
09Z:
10Z:
11Z:
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  ASH  SAL  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---  ---
00Z: 5.0       5.2  3.8       6.5  5.4
01Z: 3.2       5.0  3.4            5.4
02Z:                6.1  4.0
03Z: 3.7            5.2
04Z:                               3.5
05Z:       12       3.6
06Z:      9.5                      4.1
07Z:
08Z:
09Z:
10Z:
11Z:
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  ASH  SAL  TOM  DIX  KHA  MAG  JUL  POI  MAU  CAM  VBG  GOO  EIE  TAO  RES  CHU  KEA  RAM  ARG  NIC  DYS  TOW
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:            4.3  5.2       6.5       4.7  5.6 11.6  7.1  6.2  4.1  4.7   A    F       11.6  5.5   B        5.7 10.6
01Z:  4.0       4.3  5.0                 4.4  5.3 11.6  7.3  6.0  4.2  5.2   A   5.0      11.6  4.5   B        6.4  7.9
02Z:  4.0       4.6  5.0       6.4       4.5  5.3 12.0  8.9  6.1  3.6  4.3   A    F       12.0  5.6   B        6.6  7.5
03Z:  4.1       4.8  5.3                 4.2  4.4 13.0  8.4  6.1  3.3  5.6   A   4.9      13.0  5.3   B        5.2  7.0
04Z:  4.3       4.9  5.4            4.9  4.2  3.9 12.0  7.7  6.4  3.7  5.7   A   5.2      12.0  5.6   B        4.9  7.6
05Z:  4.9  8.2  5.1  5.6  5.0            4.9  4.3 11.0  6.9  5.7   A   5.8   I   4.5      11.0  5.8   B        4.5
06Z:  5.0  8.8  5.1                 5.0  5.1  5.1  9.7  7.2  4.8  2.9  4.2  6.7            9.7  5.4   B        4.5
07Z:                                     5.5  5.1  9.6  6.5  4.6  3.5  4.2   A             9.6  5.0   B        4.5  6.6
08Z:                                     6.0       8.5  5.0  4.8  7.3  4.6  7.5            8.5  4.1   A        5.0
09Z:                                               7.9  4.5  4.5   B    A   8.4            7.9  3.0  4.2       4.6
10Z:                                               7.8  4.5  4.6   A    A   8.2            7.8  3.4   B        3.9  3.1
11Z:                                               6.9  4.5  3.8  4.1   B    A             6.9  4.4   B        3.5  3.4
12Z:                                               6.8  5.1  4.3  4.4   A   6.6            6.8  5.2   B        4.4
13Z:                                               7.3  5.3  4.1  4.3   A   6.8        R   7.3  8.2   B        5.2
14Z:                                               7.2       4.8  4.6   A   7.1        R   7.2  5.5   B        5.2  3.9
15Z:                                               5.9       4.6  4.9       7.0        R   5.9   A    A        4.7  2.8
16Z:                                               5.4        A   5.3  5.2  7.0        R   5.4  5.7  5.7  8.8  4.6  3.1
17Z:                                               5.9  4.4   A   5.1  4.6  8.4        R   5.9  5.5   B  10.6  5.7  3.3
18Z:                                                    4.7  6.0  5.2  4.2  8.5        R        5.5   A   9.8  5.6  3.1
19Z:                                                    4.3  5.6  5.6  4.5  8.5       4.9       5.7   B   8.4   A   3.6
20Z:                                                    3.6   A   5.6  4.7  6.9       5.3       5.9   B   7.1  5.9
21Z:                                                    4.4   A   5.5  4.4  6.5   F             6.2   B   7.3  6.2  5.7
22Z:                                                    6.0  5.7  5.6  4.8  6.6   F             6.2   B        5.8  7.1
23Z:                                                    6.7  5.6  6.2  4.8  8.3  5.2            5.8   B        5.5
=========================================
Estimated Average Global foF2:  5.93 MHz.


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

      MUR  ASH  SAL  TOM  MAG  JUL  MAU  VBG  GOO  EIE  TAO  RES  CHU  KEA  RAM  ARG  NIC  DYS  TOW
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:                17.7      12.2 32.5 27.3 11.1 15.0   A    F       32.5 15.4   B       15.4 36.0
01Z: 10.4      10.8 13.0      11.4 32.5 18.6 11.8 15.6   A  14.0      32.5 12.2   B       18.6 26.9
02Z:           11.5 12.0      12.6 34.2 19.5 10.1 14.6   A    F       34.8 16.8   B       19.8 18.8
03Z:           11.0 14.8      11.8 39.6 18.3  7.3 16.2   A  13.7      40.3 14.3   B       15.1 21.7
04Z:           11.3 15.7      10.5 38.4 17.3 10.4 16.0   A  15.1      38.4 14.6   B       13.7 25.1
05Z:      23.8 13.3 15.1      13.2 33.0 17.1   A  17.4   I  13.5      33.0 16.8   B       13.1
06Z:      23.8 13.3      14.0 12.8 28.6 14.9  7.0 11.8 18.8           29.1 14.6   B       13.1
07Z:                          15.4 28.3 12.0  9.4 11.8   A            28.8 14.0   B       11.7 22.4
08Z:                          16.8 25.5 13.4 16.1 13.3 23.2           25.5 10.7   A       15.0
09Z:                               22.5 13.5   B    A  26.9           22.9  7.8 11.3      12.9
10Z:                               22.6 15.6   A    A  26.2           22.6 10.5   B       10.9 10.5
11Z:                               18.3  9.1 16.0   B    A            18.6 14.5   B        9.4
12Z:                               17.7 14.2 16.3   A  19.1           17.7 14.0   B       15.0
13Z:                               20.1 12.3 15.9   A  19.0        R  20.4 24.6   B       16.1
14Z:                               22.0 15.4 17.0   A  21.3        R  22.3 15.4   B       14.6 14.8
15Z:                               15.6 15.2 17.1      20.3        R  15.9   A    A       19.3  8.4
16Z:                               15.9   A  17.5 13.0 22.4        R  16.2 14.2 16.5 24.6 18.9
17Z:                               18.3   A  18.4 15.2 24.4        R  18.3 19.2   B  32.9 14.2 10.6
18Z:                                    16.8 13.0 17.6 27.2        R       19.2   A  32.3 16.8  8.1
19Z:                                    14.6 17.4 16.2 27.2      11.8      14.2   B  26.9   A
20Z:                                      A  16.8 16.0 21.4      13.8      15.9   B  21.3 15.9
21Z:                                      A  14.9 16.7 18.9   F            17.4   B  20.4 18.0 19.4
22Z:                                    16.0 16.2 16.3 19.8   F            18.0   B       16.2
23Z:                                    15.1 18.6 15.4 24.9 13.5           17.4   B       15.4
===============================================
Estimated Average Global MUF(3000)F2: 17.49 MHz.


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

      TAO  PAL  SHE  OSA  CNV  BOU  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  190  340  200       160  240  170
01Z:  200  360  200            240  170
02Z:  230       200       100  240  160
03Z:  260  400  200       130  210  160
04Z:  280  370  200       100  200  160
05Z:  290  270  200        98  190  160
06Z:  300  190  190       100  180  170
07Z:  320  160  160       100  170  160
08Z:  330  140  150       100  160  160
09Z:  370  110  140       110       150
10Z:  330  110  130        82  160  100
11Z:  210   94  120        83  160   99
12Z:  170   85  120       120  170   96
13Z:  140   84  110       160  200   99
14Z:  130   74  180       160  230  110
15Z:  120   43  180       170  230  130
16Z:  110   42  180       170  240  170
17Z:  110   82  150       190  250  200
18Z:  110   89  140       190  250  200
19Z:  110  130  130       200  250  220
20Z:  110  140  130       200  250  240
21Z:  140  160  140       180  250  220
22Z:  200  200  150       160  230  220
23Z:  230  230  190       160  220  210


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

HIR = Hiraiso                    Japan               (N36E141)
MUR = Murmansk                   USSR                (N68E033)
ASH = Ashkhabad                  USSR                (N37E058)
SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
DIX = Dixon                      USSR                (N74E081)
KHA = Khabarovsk                 USSR                (N48E135)
MAG = Magadan                    USSR                (N60E151)
JUL = Juliusruh/Rugen            Germany             (N54E013)
POI = Poitiers                   France              (N46E000)
MAU = Maui HI                    USA                 (N20W157)
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)
RES = Resolute Bay               Canada              (N74W094)
CHU = Churchill                  Canada              (N58W094)
KEA = Keakawapu HI               USA                 (N20W156)
RAM = Ramey AFB                  Puerto Rico         (N18W067)
ARG = Argentia                   Canada              (N48W053)
NIC = Nicosia                    Cyprus              (N35E033)
DYS = Dyess AFB TX               USA                 (N32W099)
TOW = Townsville                 Australia           (S19E147)
PAL = Palehua HI                 USA                 (N21W158)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)
CNV = Cape Canaveral FL          USA                 (N28W080)
BOU = Boulder CO                 USA                 (N40W105)
ANC = Anchorage AK               USA                 (N61W150)


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

          SFD = Sudden Frequency Deviation
Typical S-SWF = Short Wave Fadeout with a sudden dropout.
   Slow S-SWF = Short Wave Fadeout with a slow dropout of 5 to 15 minutes
                and a gradual recovery
        G-SWF = Short Wave Fadeout with fade irregular in dropout and
                irregular in recovery
          SEA = Sudden Enhancement of Atmospherics
        SPA-A = Sudden Phase Anomaly with Phase Advance
         SCNA = Sudden Cosmic Noise Absorption
          SES = Sudden Enhancement of signal 0.15 to 200 KHz
        SPA-R = Sudden Phase Anomaly with Phase Retardation


     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.


