From solar-daily-request@lut.fi Mon May 10 09:35:47 1993
Received: from lut.fi by cs.tut.fi with SMTP id AA12721
  (5.65c/IDA-1.4.4 for <rko@cs.tut.fi>); Mon, 10 May 1993 09:35:45 +0300
Received: by lut.fi with TULP
	(5.65c8/IDA-1.4.4/Kim-2.2) id AA18340; Mon, 10 May 1993 09:35:16 +0300
Received: from rho.uleth.ca by lut.fi with SMTP
 (5.65c8/IDA-1.4.4/Kim-2.2) id AA18291; Mon, 10 May 1993 09:34:07 +0300
Return-Path: <oler@rho.uleth.ca>
Received: by rho.uleth.ca (5.57/Ultrix3.0-C)
 id AA05247; Mon, 10 May 93 00:33:29 -0600
From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9305100633.AA05247@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 09 May
To: solar-daily@lut.fi
Date: Mon, 10 May 93 0:33:27 MDT
X-Mailer: ELM [version 2.3 PL11]
X-Charset: FI
X-Char-Esc: 29
Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
X-Sequence: 756
Status: OR

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 09 MAY 93
                    ---------------------------------------


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

ARC: Type of Measurement = Riometer.
     Type of Phenomenon  = Auroral Absorption.
     Start of Event: 0011Z
     Event Maximum : 0302Z,  Maximum Absorption: 3 dB
     End of Event  : 0600Z


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

     ASH  SAL  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---
00Z: 2.9                      2.8
01Z: 2.9                 3.0  2.9
02Z: 2.8                 3.0  3.2
03Z: 2.9                 3.0  3.0
04Z:                     3.0  3.0
05Z:           2.5       2.8  3.1
06Z:                     3.0
07Z:      2.6            3.1  3.2
08Z: 2.4                 3.1  3.0
09Z:           2.6       3.1  3.1
10Z: 2.6       2.7  2.6  3.1  3.4
11Z: 2.8       2.9       3.0  3.0
12Z: 2.7       2.8  2.8  2.9
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

     ASH  SAL  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---  ---
00Z: 2.0       1.2  1.2  1.3  1.0
01Z: 2.0                 1.3  1.0
02Z: 2.0       1.0       1.3  1.0
03Z: 2.0       1.0       1.1  1.0
04Z:           1.1       1.1  1.0
05Z:           1.9       1.2  1.0
06Z:                     1.1
07Z:      1.8  1.0       1.3  1.0
08Z: 2.0  3.2  1.5       1.3  1.0
09Z: 2.0       1.1  2.1  1.5  1.0
10Z: 2.0       1.5  3.0  1.3  1.1
11Z: 2.0       1.0       1.2  1.0
12Z: 2.0       1.0  2.7  1.0  1.0
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

     ASH  TOM  DIX  KHA  MAG
     ---  ---  ---  ---  ---
00Z: 2.6       6.0  6.8
01Z: 3.0            5.0
02Z: 3.8
03Z: 3.0  3.2
04Z: 3.5  3.3
05Z: 3.4  3.3
06Z: 4.8
07Z: 4.1
08Z: 3.8
09Z: 4.2
10Z: 3.8            2.3
11Z: 4.0            2.5  2.0
12Z: 3.8  2.7  3.5  3.2  1.4
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      ASH  SAL  TOM  DIX  KHA  MAG
     ---- ---- ---- ---- ---- ----
00Z:  4.0                      5.3
01Z:  3.8                 6.5  6.3
02Z:  4.0                 7.0  6.1
03Z:  3.8                 6.8  6.9
04Z:                      7.5  7.2
05Z:            4.4       7.4  7.4
06Z:                      8.8
07Z:       4.8            7.4  7.7
08Z:  5.8                 7.8  7.0
09Z:            4.7  4.5  6.7  7.6
10Z:  5.8       4.6  5.2  6.8  6.1
11Z:  6.0       4.6       7.0  5.6
12Z:  5.8       4.6  5.2  7.0
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      ASH  SAL  TOM  DIX  KHA  MAG
     ---- ---- ---- ---- ---- ----
00Z: 11.6                     14.8
01Z: 11.0                19.5 18.3
02Z: 11.2                21.0 19.5
03Z: 11.0                20.4 20.7
04Z:                     22.5 21.6
05Z:           11.0      20.7 22.9
06Z:                     26.4
07Z:      12.5           22.9 24.6
08Z: 13.9                24.2 21.0
09Z:           12.2      20.8 23.6
10Z: 15.1      12.4 13.5 21.1 20.7
11Z: 16.8      13.3      21.0 16.8
12Z: 15.7      12.9 14.6 20.3
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      PAL  SHE  OSA  TAO  CNV  BOU  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  480  180       260       210  140
01Z:  450  140       340  160  200  110
02Z:  440  190       450  160  200  130
03Z:  430  160       690  150  170  110
04Z:  410  200       840  160  140   65
05Z:  370  200       930  170  130   49
06Z:  300  180       970       140   11
07Z:  230  200            170  150  4.1
08Z:  210  200            140  150   27
09Z:  190  190            110  140   19
10Z:  150  150            100  130   18
11Z:  140  100            100  130   20
12Z:  170  100       310  120  140   23
13Z:  130  100       270  140  170   25
14Z:   97   97            160  200   26
15Z:   89   99            170  240
16Z:  100                 180  250
17Z:  170  150       220  200  250
18Z:  190  190       170  190  250
19Z:  190  160       160  200  250
20Z:  240  230       100  210  250   54
21Z:  300  230        71  230  260   63
22Z:  330  240       130  250  270   87
23Z:  310  220       210  300        95


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

ARC = Archangelsk                USSR                (N64E040)
ASH = Ashkhabad                  USSR                (N37E058)
SAL = Salekhard                  USSR                (N66E066)
TOM = Tomsk                      USSR                (N56E085)
DIX = Dixon                      USSR                (N74E081)
KHA = Khabarovsk                 USSR                (N48E135)
MAG = Magadan                    USSR                (N60E151)
PAL = Palehua HI                 USA                 (N21W158)
SHE = Shemya AK                  USA                 (N52E174)
OSA = Osan AB                    Korea               (N37E127)
TAO = Taoyuan                    Taiwan              (N25E121)
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


     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.


