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AL7MI > PROPAG 17.05.96 15:10l 96 Lines 3805 Bytes #-11015 (0) @ WW
BID : 15628_KA6EYH
Read: GUEST
Subj: HF Propagation May 05
Path: DB0AAB<DB0SL<DB0RGB<DB0ABH<DB0SRS<DB0ZDF<DB0GE<F6KVE<F1TIV<F8KLY<
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Sent: 960505/0955Z @:KA6EYH.#NOCAL.CA.USA.NA #:15628 [Pacifica] $:15628_KA6EYH
From: AL7MI@KA6EYH.#NOCAL.CA.USA.NA
To : PROPAG@ALLUS
Bulletin downloaded via anonymous FTP from ftp.sel.noaa.gov
(132.163.224.101)
*--<< AL7MI - University of Alaska Fairbanks >>--*
73 de Michael
AX25: AL7MI @KA6EYH.#NOCAL.CA.USA.NOAM
Internet: fbdx@aurora.alaska.edu
Prepared jointly by the U.S. Air Force
and the U.S. Dept. of Commerce, NOAA, Space Environment Center
SUBJ: HF RADIO PROPAGATION REPORT
JOINT USAF/NOAA BULLETIN PREPARED AT THE 50TH WEATHER SQUADRON,
FALCON AFB, COLORADO.
PRIMARY HF RADIO PROPAGATION REPORT ISSUED AT 05/0504Z MAY 96.
PART I. SUMMARY 05/0000Z TO 05/0600Z MAY 96/
FORECAST 05/0600Z TO 05/1200Z MAY 96.
QUADRANT
I II III IV
0 TO 90W 90W TO 180 180 TO 90E 90E TO 0
REGION POLAR N4 N5 N5 N5
AURORAL N4 N4 N5 N5
MIDDLE N6 N6 N6 N6
LOW N6 N6 N7 N7
EQUATORIAL N6 N7 N7 N7
PART II.
GENERAL DESCRIPTION OF HF RADIO PROPAGATION CONDITIONS
OBSERVED DURING THE 24 HOUR PERIOD ENDING 05/2400Z, AND FORECAST
CONDITIONS FOR THE NEXT 24 HOURS. CONDITIONS HAVE CONTINUED TO
REMAIN NORMAL TO GOOD.
FORECAST: EXPECT NO SIGNIFICANT CHANGES.
PART III. SUMMARY OF SOLAR FLARE INDUCED IONOSPHERIC DISTURBANCES
WHICH MAY HAVE CAUSED SHORT WAVE FADES IN THE SUNLIT HEMISPHERE
DURING THE 24 HOUR PERIOD ENDING 04/2400Z MAY 96 . . . NONE.
PROBABILITY FOR THE NEXT 24 HOURS . . . . NIL.
PART IV. OBSERVED/FORECAST 10.7 CM FLUX AND K/AP.
THE OBSERVED 10.7 CM FLUX FOR 04 MAY 96 WAS 069.
THE FORECAST 10.7 CM FLUX FOR 05, 06, AND 07 MAY 96
ARE 070, 072, AND 072.
THE OBSERVED K/AP VALUE FOR 04 MAY 96 WAS 02/10.
THE FORECAST K/AP VALUES FOR 05, 06, AND 07 MAY 96
ARE 02/08, 02/08, AND 02/08.
SATELLITE X-RAY BACKGROUND: LT A1.0.
THE EFFECTIVE SUNSPOT NUMBER FOR 04 MAY 96 WAS 010.0.
======================================================================
27 DAY 10.7 CM SOLAR RADIO FLUX FORECAST PREPARED 04 MAY 96
THE FLUX ON 04 MAY 96 WAS 69. THE 90-DAY MEAN FLUX WAS 70.
10 CM SOLAR RADIO FLUX GRAPH
OBSERVED FLUX VERSUS TIME /L'LAST 27 DAYS/
APR 7 11 16 21 26 1 3 MAY
. X . . . X . . . . X . . . . X . . . . X . . . . X . X .
76.
75. P P
74. P P P P P P P P P P P P P
73. . . . . P . P . . . . . . . . . . . . . P P P . P . . MEAN
72. P L
71. P L B B L B B B B B B B B B B B
70. P P B B B B B B B B L L
69. L L L L L L
68. L L L L L L L L L L L
67. P L L L L
66. . . . . . . . . . . . . . . . . . . . . . . . . . . . M10PCT
65. P
64.
. X . . . X . . . . X . . . . X . . . . X . . . . X . X .
MAY 5 9 14 19 24 29 31 MAY
PREDICTED FLUX VERSUS TIME /P'PREDICTION B'FBAR/
P20PCT' 88 P10PCT' 80 MEAN ' 73 M10PCT' 66 M20PCT' 58
27 DAYS
DATE FLUX F BAR AGO
5 MAY 70 70 68
6 MAY 70 70 69
7 MAY 71 70 69
8 MAY 72 70 68
9 MAY 73 70 68
10 MAY 67 70 69
11 MAY 73 70 69
12 MAY 74 70 68
13 MAY 74 70 68
14 MAY 74 70 69
15 MAY 75 70 70
16 MAY 74 70 70
17 MAY 75 71 71
18 MAY 74 71 74
19 MAY 74 71 72
20 MAY 74 71 71
21 MAY 74 71 68
22 MAY 74 71 67
23 MAY 74 71 68
24 MAY 74 71 68
25 MAY 73 71 67
26 MAY 73 71 68
27 MAY 73 71 68
28 MAY 74 71 67
29 MAY 73 71 67
30 MAY 74 71 68
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