From solar-daily-request@lut.fi Fri May 21 07:55:19 1993
Received: from lut.fi by cs.tut.fi with SMTP id AA12593
  (5.65c/IDA-1.4.4 for <rko@cs.tut.fi>); Fri, 21 May 1993 07:55:17 +0300
Received: by lut.fi with TULP
	(5.65c8/IDA-1.4.4/Kim-2.2) id AA11469; Fri, 21 May 1993 07:54:53 +0300
Received: from rho.uleth.ca by lut.fi with SMTP
 (5.65c8/IDA-1.4.4/Kim-2.2) id AA11302; Fri, 21 May 1993 07:53:12 +0300
Return-Path: <oler@rho.uleth.ca>
Received: by rho.uleth.ca (5.57/Ultrix3.0-C)
 id AA02267; Thu, 20 May 93 22:51:55 -0600
From: oler@rho.uleth.ca (Cary Oler)
Message-Id: <9305210451.AA02267@rho.uleth.ca>
Subject: Daily Summary of Ionospheric Data for 20 May
To: solar-daily@lut.fi
Date: Thu, 20 May 93 22:51:52 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: 779
Status: OR

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 20 MAY 93
                    ---------------------------------------


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

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


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

     MUR  ASH  SAL  DIX  MAG  TOM  KHA
     ---  ---  ---  ---  ---  ---  ---
00Z: 2.0  2.0  1.0  3.8  1.0
01Z: 1.0  2.0  1.0       1.0  1.0  1.2
02Z: 1.0  2.0  1.0  2.8  1.0  1.0  1.2
03Z: 1.0  2.0  1.0  1.5  1.0  1.0  1.3
04Z: 2.0  2.0  1.0  3.2       1.0
05Z:      2.0  1.0  2.9       1.0
06Z: 1.0  2.0  1.0  1.6  1.0  1.2  1.2
07Z:
08Z:      2.0            1.0       1.1
09Z:
10Z:      2.0  1.6       1.1  1.2
11Z:      2.0  2.0       1.0  1.0  1.1
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

     MUR  ASH  DIX  MAG  TOM  KHA
     ---  ---  ---  ---  ---  ---
00Z: 3.6  2.7       3.1
01Z: 2.8  2.2       3.1  3.3  5.2
02Z:      2.6       3.4  7.0  6.0
03Z:      4.0  3.0  3.5  3.8  4.4
04Z:      3.6            4.0
05Z:      3.5            3.7
06Z:      3.6            3.3  5.0
07Z:
08Z:      3.9       2.5       3.0
09Z:
10Z:      4.8       1.9  3.3
11Z:      4.5            4.6  3.2
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  ASH  SAL  DIX  MAG  TOM  KHA  OTI
     ---- ---- ---- ---- ---- ---- ---- ----
00Z:  4.6  6.0  5.0  4.8  4.9
01Z:  5.3  6.0  5.0       4.9  5.8  5.5
02Z:  5.3  5.9  4.8  4.8  4.9       5.9
03Z:  5.3  6.9  5.0  5.0  4.6  6.4  5.7
04Z:  5.0  9.0  5.3  5.0       6.6
05Z:       9.1  5.6  5.2       6.6
06Z:  5.2  9.1  6.0  5.0  5.1  6.6  5.8
07Z:
08Z:      10.2            5.7       5.8
09Z:
10Z:       8.6  5.7       6.2  6.8
11Z:       8.0  5.8       6.3  6.1  7.3
12Z:                                     4.2
13Z:
14Z:                                     5.4
15Z:                                     6.0
16Z:                                     5.8
17Z:                                     6.0
18Z:                                     5.7
19Z:
20Z:
21Z:
22Z:
23Z:


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

      MUR  ASH  SAL  DIX  MAG  TOM  KHA
     ---- ---- ---- ---- ---- ---- ----
00Z: 13.3 17.4 14.0 12.5
01Z: 15.9 18.0 14.0           16.2 17.0
02Z: 15.4 17.7 13.4                17.7
03Z: 15.9 18.6 14.0           19.2 17.7
04Z: 13.5 24.3 16.4           20.5
05Z:      27.3 15.1           20.5
06Z:      23.7 18.0      15.8 19.1 17.4
07Z:
08Z:      28.6           16.5      17.4
09Z:
10Z:      24.1 16.5      18.6 20.4
11Z:      22.4 18.0      18.9 18.9 21.2
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:
18Z:
19Z:
20Z:
21Z:
22Z:
23Z:


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

      PAL  SHE  OSA  TAO  CNV  BOU  ANC
     ---- ---- ---- ---- ---- ---- ----
00Z:  450  220       230       240  210
01Z:  480            220  260  240  210
02Z:  460            270  210  240  190
03Z:  440            300  170  220  180
04Z:  390            310  150  170  180
05Z:  340            310  140  150  190
06Z:  280            320  140  140  190
07Z:  260            330  150       180
08Z:  230            350  150       170
09Z:  220            340  140  150  150
10Z:  150            280  130  150  130
11Z:  140            180  140  150  120
12Z:  140            130  170       130
13Z:   82            120  170  190  130
14Z:   68             78  180  230  140
15Z:   62             73  210       160
16Z:   75             78  240       200
17Z:  150  120        96  250  290  230
18Z:  200  190        54  260  290  250
19Z:  250  170            280  280  250
20Z:  310  180        41  270  260  230
21Z:  370  190        66  250  250  220
22Z:  450  200       140  240  240  210
23Z:                      250  240  210


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

MUR = Murmansk                   USSR                (N68E033)
ASH = Ashkhabad                  USSR                (N37E058)
SAL = Salekhard                  USSR                (N66E066)
DIX = Dixon                      USSR                (N74E081)
MAG = Magadan                    USSR                (N60E151)
TOM = Tomsk                      USSR                (N56E085)
KHA = Khabarovsk                 USSR                (N48E135)
OTI = Ottawa                     Canada              (N45W076)
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.


