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Date: Sat, 15 Jan 94 20:59:40 PST From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu> Errors-To: Info-Hams-Errors@UCSD.Edu Reply-To: Info-Hams@UCSD.Edu Precedence: Bulk Subject: Info-Hams Digest V94 #41 To: Info-Hams Info-Hams Digest Sat, 15 Jan 94 Volume 94 : Issue 41 Today's Topics: Daily Summary of Solar Geophysical Activity for 14 January VANITY CALLS INFO Weekly Solar Terrestrial Forecast & Review for 14 January Send Replies or notes for publication to: <Info-Hams@UCSD.Edu> Send subscription requests to: <Info-Hams-REQUEST@UCSD.Edu> Problems you can't solve otherwise to brian@ucsd.edu. Archives of past issues of the Info-Hams Digest are available (by FTP only) from UCSD.Edu in directory "mailarchives/info-hams". We trust that readers are intelligent enough to realize that all text herein consists of personal comments and does not represent the official policies or positions of any party. Your mileage may vary. So there. ---------------------------------------------------------------------- Date: Fri, 14 Jan 1994 21:12:52 MST From: cs.utexas.edu!math.ohio-state.edu!cyber2.cyberstore.ca!nntp.cs.ubc.ca!alberta!adec23!ve6mgs!usenet@uunet.uu.net Subject: Daily Summary of Solar Geophysical Activity for 14 January To: info-hams@ucsd.edu /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY 14 JANUARY, 1994 /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ (Based In-Part On SESC Observational Data) SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 14 JANUARY, 1994 ----------------------------------------------------------- !!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 014, 01/14/94 10.7 FLUX=090.2 90-AVG=102 SSN=046 BKI=3333 3323 BAI=014 BGND-XRAY=B1.9 FLU1=6.6E+06 FLU10=1.3E+04 PKI=3344 4333 PAI=019 BOU-DEV=023,036,035,033,033,020,019,024 DEV-AVG=027 NT SWF=00:000 XRAY-MAX= C1.6 @ 1612UT XRAY-MIN= B1.4 @ 0138UT XRAY-AVG= B2.5 NEUTN-MAX= +001% @ 2335UT NEUTN-MIN= -004% @ 0835UT NEUTN-AVG= -0.3% PCA-MAX= +0.1DB @ 0645UT PCA-MIN= -0.3DB @ 0740UT PCA-AVG= -0.0DB BOUTF-MAX=55354NT @ 0325UT BOUTF-MIN=55325NT @ 1950UT BOUTF-AVG=55338NT GOES7-MAX=P:+000NT@ 0000UT GOES7-MIN=N:+000NT@ 0000UT G7-AVG=+056,+000,+000 GOES6-MAX=P:+123NT@ 1606UT GOES6-MIN=N:-072NT@ 0635UT G6-AVG=+081,+029,-034 FLUXFCST=STD:095,100,105;SESC:095,100,105 BAI/PAI-FCST=015,012,010/015,012,010 KFCST=2344 3322 2334 2222 27DAY-AP=013,009 27DAY-KP=2233 2343 3332 2221 WARNINGS=*SWF ALERTS= !!END-DATA!! NOTE: The Effective Sunspot Number for 13 JAN 94 was 53.0. The Full Kp Indices for 13 JAN 94 are: 4- 4o 3o 3o 5- 3+ 3- 4o SYNOPSIS OF ACTIVITY -------------------- Solar activity became low. Region 7648 (N07W79) produced a C1/SF at 0916Z. Another C1 occurred at 1612Z and was coincident in time with the beginning of an active surge region near NE05. The delta configuration in Region 7650 (N05W67) appears to have faded. Solar activity forecast: solar activity should continue generally low with the emphasis shifting from the west limb to the new region at the east limb. Due to the lack of frequent burst activity, it is likely old Region 7640 will not be as active this rotation as it was last rotation. The geomagnetic field was generally unsettled to active. Intermittent minor to major storm periods were observed at some high latitude sites. Geophysical activity forecast: the geomagnetic field should continue unsettled to slightly active for 15-16 Jan. High latitudes should expect isolated storm conditions. Mostly unsettled levels are predicted for 17 Jan. Event probabilities 15 jan-17 jan Class M 20/20/20 Class X 01/01/01 Proton 01/01/01 PCAF Green Geomagnetic activity probabilities 15 jan-17 jan A. Middle Latitudes Active 40/40/30 Minor Storm 15/15/10 Major-Severe Storm 01/01/01 B. High Latitudes Active 50/50/40 Minor Storm 20/20/10 Major-Severe Storm 05/05/01 HF propagation conditions were near-normal from the middle to equatorial paths. Occasional minor signal degradation persisted on higher latitude paths, particularly night-sector transauroral circuits. Similar, if not gradually improving, conditions are expected over the next 72 hours. COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS ======================================================== REGIONS WITH SUNSPOTS. LOCATIONS VALID AT 14/2400Z JANUARY ---------------------------------------------------------- NMBR LOCATION LO AREA Z LL NN MAG TYPE 7648 N07W80 022 0110 DAO 08 006 BETA 7650 N05W68 010 0150 EAO 12 011 BETA 7651 S06W47 349 0030 HRX 01 001 ALPHA REGIONS DUE TO RETURN 15 JANUARY TO 17 JANUARY NMBR LAT LO 7640 N08 206 7641 N05 201 7644 N10 195 LISTING OF SOLAR ENERGETIC EVENTS FOR 14 JANUARY, 1994 ------------------------------------------------------ A. ENERGETIC EVENTS: BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP 0157 0157 0157 130 0343 0343 0344 4000 POSSIBLE CORONAL MASS EJECTION EVENTS FOR 14 JANUARY, 1994 ---------------------------------------------------------- BEGIN MAX END LOCATION TYPE SIZE DUR II IV NO EVENTS OBSERVED INFERRED CORONAL HOLES. LOCATIONS VALID AT 14/2400Z --------------------------------------------------- ISOLATED HOLES AND POLAR EXTENSIONS EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN NO DATA AVAILABLE FOR ANALYSIS SUMMARY OF FLARE EVENTS FOR THE PREVIOUS UTC DAY ------------------------------------------------ Date Begin Max End Xray Op Region Locn 2695 MHz 8800 MHz 15.4 GHz ------ ---- ---- ---- ---- -- ------ ------ --------- --------- --------- 13 Jan: 0336 0341 0348 B4.4 0912 0918 0922 B6.8 SF 7650 N07W50 1048 1058 1103 SF 7650 N04W50 1520 1525 1530 B4.0 SF 7648 N06W56 1815 1825 1834 B4.0 2015 2025 2041 B6.8 REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY ------------------------------------------------ C M X S 1 2 3 4 Total (%) -- -- -- -- -- -- -- -- --- ------ Region 7648: 0 0 0 1 0 0 0 0 001 (16.7) Region 7650: 0 0 0 2 0 0 0 0 002 (33.3) Uncorrellated: 0 0 0 0 0 0 0 0 003 (50.0) Total Events: 006 optical and x-ray. EVENTS WITH SWEEPS AND/OR OPTICAL PHENOMENA FOR THE LAST UTC DAY ---------------------------------------------------------------- Date Begin Max End Xray Op Region Locn Sweeps/Optical Observations ------ ---- ---- ---- ---- -- ------ ------ --------------------------- NO EVENTS OBSERVED. NOTES: All times are in Universal Time (UT). Characters preceding begin, max, and end times are defined as: B = Before, U = Uncertain, A = After. All times associated with x-ray flares (ex. flares which produce associated x-ray bursts) refer to the begin, max, and end times of the x-rays. Flares which are not associated with x-ray signatures use the optical observations to determine the begin, max, and end times. Acronyms used to identify sweeps and optical phenomena include: II = Type II Sweep Frequency Event III = Type III Sweep IV = Type IV Sweep V = Type V Sweep Continuum = Continuum Radio Event Loop = Loop Prominence System, Spray = Limb Spray, Surge = Bright Limb Surge, EPL = Eruptive Prominence on the Limb. ** End of Daily Report ** ------------------------------ Date: Thu, 13 Jan 1994 15:42:40 GMT From: psinntp!arrl.org!gswanson@uunet.uu.net Subject: VANITY CALLS INFO To: info-hams@ucsd.edu The text of the NPRM in PR Docket 93-305, dealing with the Commission's proposed Vanity Call Sign program, is available electronically on the following services: Compuserve, America Online, BIX and NVN (National Video Network). The file is named 'VANITY" on there services. The file is also available on the Internet from the ARRL information server. Send a message to "info@arrl.org" with the following (and only the following) in the text of the message: "SEND FCC-93-305". If you want to find out more about the info server, put only the word "HELP" in the text of your message. If you have Internet ftp capability, the file is available in the /pub/hamradio/ARRL file area on world.std.com (file name is FCC-93-305). The file is also available for downloading from the ARRL bulletin board (203-666-0578) with the file name VANITY. And, finally, the full text will be printed in Feburary QST. 73, Glenn KB1GW ------------------------------ Date: Fri, 14 Jan 1994 06:44:12 MST From: library.ucla.edu!agate!usenet.ins.cwru.edu!magnus.acs.ohio-state.edu!math.ohio-state.edu!cyber2.cyberstore.ca!nntp.cs.ubc.ca!alberta!adec23!ve6mgs!usenet@network.ucsd.edu Subject: Weekly Solar Terrestrial Forecast & Review for 14 January To: info-hams@ucsd.edu --- SOLAR TERRESTRIAL FORECAST AND REVIEW --- January 14 to January 23, 1994 Report Released by Solar Terrestrial Dispatch P.O. Box 357, Stirling, Alberta, Canada T0K 2E0 Accessible BBS System: (403) 756-3008 --------- SOLAR AND GEOPHYSICAL ACTIVITY FORECASTS AT A GLANCE ---------------------------------------------------- |10.7 cm|HF Propagation +/- CON|SID AU.BKSR DX| Mag| Aurora | |SolrFlx|LO MI HI PO SWF %MUF %|ENH LO MI HI LO MI HI %|K Ap|LO MI HI| --|-------|-----------------------|-------------------------|----|--------| 14| 097 | G G P F 40 -10 70| 40 NA NA NA 01 20 30 30|4 15|NV NV MO| 15| 105 |VG G F F 40 00 75| 40 NA NA NA 01 15 25 30|3 12|NV NV MO| 16| 115 |VG G F F 40 +05 70| 40 NA NA NA 01 10 20 35|2 10|NV NV LO| 17| 115 |VG G F F 40 +10 70| 40 NA NA NA 01 05 15 35|2 10|NV NV LO| 18| 120 |VG G F F 40 +10 70| 40 NA NA NA 01 05 15 40|2 10|NV NV LO| 19| 125 |VG G F F 40 +15 65| 40 NA NA NA 01 05 15 45|2 08|NV NV LO| 20| 125 |VG G F F 40 +15 65| 40 NA NA NA 01 05 15 45|2 08|NV NV LO| 21| 130 |VG G F F 40 +20 65| 40 NA NA NA 01 05 15 45|2 08|NV NV LO| 22| 130 |VG G F F 40 +20 65| 40 NA NA NA 02 10 20 45|2 10|NV NV LO| 23| 135 |VG G P P 40 +15 65| 40 NA NA NA 02 20 30 40|3 12|NV LO MO| PEAK PLANETARY 10-DAY GEOMAGNETIC ACTIVITY OUTLOOK (14 JAN - 23 JAN) ________________________________________________________________________ | EXTREMELY SEVERE | | | | | | | | | | | HIGH | | VERY SEVERE STORM | | | | | | | | | | | HIGH | | SEVERE STORM | | | | | | | | | | | MODERATE | | MAJOR STORM | | | | | | | | | | | LOW - MOD. | | MINOR STORM | | | | | | | | | | | LOW | | VERY ACTIVE | * | | | | | | | | | | NONE | | ACTIVE |***|** | | | | | | | | * | NONE | | UNSETTLED |***|***|***|** |** |** |** |** |** |***| NONE | | QUIET |***|***|***|***|***|***|***|***|***|***| NONE | | VERY QUIET |***|***|***|***|***|***|***|***|***|***| NONE | |-------------------|---|---|---|---|---|---|---|---|---|---|------------| | Geomagnetic Field |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| Anomaly | | Conditions | Given in 8-hour UT intervals | Intensity | |________________________________________________________________________| CONFIDENCE LEVEL: 75% NOTES: Predicted geomagnetic activity is based heavily on recurrent phenomena. Transient energetic solar events cannot be predicted reliably over periods in excess of several days. Hence, there may be some deviations from the predictions due to the unpredictable transient solar component. 60-DAY GRAPHICAL ANALYSIS OF GEOMAGNETIC ACTIVITY ____________________________________________________________ 51 | J | 48 | J | 46 | J | 43 | J | 41 | J | 38 | M J | 36 | MM J | 33 | MM J | 31 | MM J | 28 | MM J | 26 | MM J | 23 | MM J | 20 | AMM J A A| 18 | AA AMM J A AAA AA| 15 | AA AMM AJ AA AAAA AAA| 13 | AA AMM AJ AAU U AAAA AAA| 10 | AA AMM AJ AAU U AAAAU U AAA| 8 |U AAU U U AMMUU AJ U UAAUUUUUUU AAAAU U U AAA| 5 |UQAAU Q QU U AMMUUQAJQUUU UAAUUUUUUUUU AAAAUQ UQU AAA| 3 |UQAAUQQQQQUQQUQAMMUUQAJQUUUQQUAAUUUUUUUUUQQQQAAAAUQQUQUQQAAA| 0 |UQAAUQQQQQUQQUQAMMUUQAJQUUUQQUAAUUUUUUUUUQQQQAAAAUQQUQUQQAAA| ------------------------------------------------------------ Chart Start Date: Day #320 NOTES: This graph is determined by plotting the greater of either the planetary A-index or the Boulder A-index. Graph lines are labelled according to the severity of the activity which occurred on each day. The left- hand column represents the associated A-Index for that day. Q = Quiet, U = Unsettled, A = Active, M = Minor Storm, J = Major Storm, and S = Severe Storm. CUMULATIVE GRAPHICAL CHART OF THE 10.7 CM SOLAR RADIO FLUX ---------------------------------------------------------- ____________________________________________________________ 151 | | 148 | * | 145 | ** | 142 | * ** | 139 | * ***** | 136 | * ***** * | 133 | ** ****** * | 130 | ** ****** ** | 127 | ************ | 124 | ************** | 121 | *************** | 118 | **************** | 115 | ***************** | 112 | ***************** | 109 | * ******************* | 106 | * * * ******************* | 103 | * ***** *** ******************** | 100 |***** ** ********* ********************** | 097 |********** ********** *********************** | 094 |********** ************ ************************| 091 |*********** *************** **************************| 088 |***************************** **************************| 085 |******************************* ****************************| 082 |************************************************************| ------------------------------------------------------------ Chart Start: Day #320 GRAPHICAL ANALYSIS OF 90-DAY AVERAGE SOLAR FLUX ----------------------------------------------- ____________________________________________________________ 103 | | 102 | *****| 101 | ***********| 100 | ****************| 099 | *********************| 098 | *********************************| 097 | ***************************************| 096 | ******************************************| 095 | **********************************************| 094 | **********************************************************| 093 |************************************************************| 092 |************************************************************| ------------------------------------------------------------ Chart Start: Day #320 NOTES: The 10.7 cm solar radio flux is plotted from data reported by the Penticton Radio Observatory (formerly the ARO from Ottawa). High solar flux levels denote higher levels of activity and a greater number of sunspot groups on the Sun. The 90-day mean solar flux graph is charted from the 90-day mean of the 10.7 cm solar radio flux. CUMULATIVE GRAPHICAL CHART OF SUNSPOT NUMBERS --------------------------------------------- ____________________________________________________________ 161 | | 154 | * | 147 | * | 140 | ** | 133 | ** * *** | 126 | *** ***** | 119 | * *** ****** | 112 | ** * *** ****** | 105 | ** ******* ****** | 098 | ** * * ** ******* ******* | 091 | *** ** ** ****************** | 084 | ********** ****************** | 077 | * * *********** ****************** | 070 | ** * ************ ******************** | 063 | **** ************ ******************** * | 056 | ********* ************** ************************| 049 | ************************* * * ************************| 042 |************************** ** **************************| 035 |************************** * ** **************************| 028 |*************************** * *** **************************| 021 |************************************************************| ------------------------------------------------------------ Chart Start: Day #320 NOTES: The graphical chart of sunspot numbers is created from the daily sunspot number counts as reported by the SESC. HF RADIO SIGNAL PROPAGATION PREDICTIONS (14 JAN - 23 JAN) High Latitude Paths ________________________________________________________ | EXTREMELY GOOD | | | | | | | | | | | | VERY GOOD | | | | | | | | | | | CONFIDENCE | GOOD | | | | | | | | | | | LEVEL | FAIR | * | **|***|***|***|***|***|***|***| **| ------- | POOR |* *|* | | | | | | | |* | 70% | VERY POOR | | | | | | | | | | | | EXTREMELY POOR | | | | | | | | | | | |----------------|---|---|---|---|---|---|---|---|---|---| | PROPAGATION |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| | QUALITY | Given in 8 Local-Hour Intervals | -------------------------------------------------------- Middle Latitude Paths ________________________________________________________ | EXTREMELY GOOD | | | | | | | | | | | | VERY GOOD | | | | | * | * | * | * | * | | CONFIDENCE | GOOD | **|***|***|***|* *|* *|* *|* *|* *|***| LEVEL | FAIR |* | | | | | | | | | | ------- | POOR | | | | | | | | | | | 70% | VERY POOR | | | | | | | | | | | | EXTREMELY POOR | | | | | | | | | | | |----------------|---|---|---|---|---|---|---|---|---|---| | PROPAGATION |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| | QUALITY | Given in 8 Local-Hour Intervals | -------------------------------------------------------- Low Latitude Paths ________________________________________________________ | EXTREMELY GOOD | | | | | | | | | | | | VERY GOOD | | * | * | **| **| **| **| **| **| **| CONFIDENCE | GOOD |***|* *|* *|* |* |* |* |* |* |* | LEVEL | FAIR | | | | | | | | | | | ------- | POOR | | | | | | | | | | | 70% | VERY POOR | | | | | | | | | | | | EXTREMELY POOR | | | | | | | | | | | |----------------|---|---|---|---|---|---|---|---|---|---| | PROPAGATION |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| | QUALITY | Given in 8 Local-Hour Intervals | -------------------------------------------------------- NOTES: NORTHERN HEMISPHERE SOUTHERN HEMISPHERE High latitudes >= 55 deg. N. | High latitudes >= 55 deg. S. Middle latitudes >= 40 < 55 deg. N. | Middle latitudes >= 30 < 55 deg. S. Low latitudes < 40 deg. N. | Low latitudes < 30 deg. S. POTENTIAL VHF DX PROPAGATION PREDICTIONS (14 JAN - 23 JAN) INCLUDES SID AND AURORAL BACKSCATTER ENHANCEMENT PREDICTIONS HIGH LATITUDES __________________________________________________ ___________________ | FORECAST | Given in 8 hour local time intervals | |SWF/SID ENHANCEMENT| |CONFIDENCE|Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| |F|S|S|M|T|W|T|F|S|S| |__________|___|___|___|___|___|___|___|___|___|___| |-|-|-|-|-|-|-|-|-|-| | 0% |***|***|***|***|***|***|***|***|***|***| 0%|*|*|*|*|*|*|*|*|*|*| | 20% |***|***|***|***|***|***|***|***|***|***| 20%|*|*|*|*|*|*|*|*|*|*| | 40% |***|***|***|***|***|***|***|***|***|***| 40%| | | | | | | | | | | | 60% | * | * | * | * | * | * | * | * | * | * | 60%| | | | | | | | | | | | 80% | | | | | | | | | | | 80%| | | | | | | | | | | | 100% | | | | | | | | | | |100%| | | | | | | | | | | |==========|===|===|===|===|===|===|===|===|===|===| |-------------------| | 100% | | | | | | | | | | |100%| | | | | | | | | | | | 80% | | | | | | | | | | | 80%| | | | | | | | | | | | 60% | | | | | | | | | | | 60%| | | | | | | | | | | | 40% | * | * | * | * | **| **| **| **| **| * | 40%| | | | | | | | | | | | 20% |***|***|***|***|***|***|***|***|***|***| 20%| | | | | | | | | |*| | 0% |***|***|***|***|***|***|***|***|***|***| 0%|*|*|*|*|*|*|*|*|*|*| |----------|---|---|---|---|---|---|---|---|---|---| |-|-|-|-|-|-|-|-|-|-| |CHANCE OF |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| |F|S|S|M|T|W|T|F|S|S| | VHF DX | Given in 8 hour local time intervals | |AURORAL BACKSCATTER| |__________|_______________________________________| |___________________| MIDDLE LATITUDES __________________________________________________ ___________________ | FORECAST | Given in 8 hour local time intervals | |SWF/SID ENHANCEMENT| |CONFIDENCE|Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| |F|S|S|M|T|W|T|F|S|S| |__________|___|___|___|___|___|___|___|___|___|___| |-|-|-|-|-|-|-|-|-|-| | 0% |***|***|***|***|***|***|***|***|***|***| 0%|*|*|*|*|*|*|*|*|*|*| | 20% |***|***|***|***|***|***|***|***|***|***| 20%|*|*|*|*|*|*|*|*|*|*| | 40% |***|***|***|***|***|***|***|***|***|***| 40%|*|*|*|*|*|*|*|*|*|*| | 60% |***|***|***|***|* *|* *|* *|* *|* *|* *| 60%| | | | | | | | | | | | 80% | | | | | | | | | | | 80%| | | | | | | | | | | | 100% | | | | | | | | | | |100%| | | | | | | | | | | |==========|===|===|===|===|===|===|===|===|===|===| |-------------------| | 100% | | | | | | | | | | |100%| | | | | | | | | | | | 80% | | | | | | | | | | | 80%| | | | | | | | | | | | 60% | | | | | * | * | * | * | * | * | 60%| | | | | | | | | | | | 40% |***|***|***|***|***|***|***|***|***|***| 40%| | | | | | | | | | | | 20% |***|***|***|***|***|***|***|***|***|***| 20%| | | | | | | | | |*| | 0% |***|***|***|***|***|***|***|***|***|***| 0%|*|*|*|*|*|*|*|*|*|*| |----------|---|---|---|---|---|---|---|---|---|---| |-|-|-|-|-|-|-|-|-|-| |CHANCE OF |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| |F|S|S|M|T|W|T|F|S|S| | VHF DX | Given in 8 hour local time intervals | |AURORAL BACKSCATTER| |__________|_______________________________________| |___________________| LOW LATITUDES __________________________________________________ ___________________ | FORECAST | Given in 8 hour local time intervals | |SWF/SID ENHANCEMENT| |CONFIDENCE|Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| |F|S|S|M|T|W|T|F|S|S| |__________|___|___|___|___|___|___|___|___|___|___| |-|-|-|-|-|-|-|-|-|-| | 0% |***|***|***|***|***|***|***|***|***|***| 0%|*|*|*|*|*|*|*|*|*|*| | 20% |***|***|***|***|***|***|***|***|***|***| 20%|*|*|*|*|*|*|*|*|*|*| | 40% |***|***|***|***|***|***|***|***|***|***| 40%|*|*|*|*|*|*|*|*|*|*| | 60% |** |** |** |***|***|***|***|***|***|***| 60%| | | | | | | | | | | | 80% | | | | | | | | | | | 80%| | | | | | | | | | | | 100% | | | | | | | | | | |100%| | | | | | | | | | | |==========|===|===|===|===|===|===|===|===|===|===| |-------------------| | 100% | | | | | | | | | | |100%| | | | | | | | | | | | 80% | | | | | | | | | | | 80%| | | | | | | | | | | | 60% | * | * | * | **| **| **| **| **| **| **| 60%| | | | | | | | | | | | 40% |***|***|***|***|***|***|***|***|***|***| 40%| | | | | | | | | | | | 20% |***|***|***|***|***|***|***|***|***|***| 20%| | | | | | | | | | | | 0% |***|***|***|***|***|***|***|***|***|***| 0%|*|*|*|*|*|*|*|*|*|*| |----------|---|---|---|---|---|---|---|---|---|---| |-|-|-|-|-|-|-|-|-|-| |CHANCE OF |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| |F|S|S|M|T|W|T|F|S|S| | VHF DX | Given in 8 hour local time intervals | |AURORAL BACKSCATTER| |__________|_______________________________________| |___________________| NOTES: These VHF DX prediction charts are defined for the 30 MHz to 220 MHz bands. They are based primarily on phenomena which can affect VHF DX propagation globally. They should be used only as a guide to potential DX conditions on VHF bands. Latitudinal boundaries are the same as those for the HF predictions charts. AURORAL ACTIVITY PREDICTIONS (14 JAN - 23 JAN) High Latitude Locations ________________________________________________________ | EXTREMELY HIGH | | | | | | | | | | | CONFIDENCE | VERY HIGH | | | | | | | | | | | LEVEL | HIGH | | | | | | | | | | | ------- | MODERATE | * | | | | | | | | * |***| 70% | LOW |***|***|***|***|***|***|***|***|***|***| | NOT VISIBLE |***|***|***|***|***|***|***|***|***|***| |----------------|---|---|---|---|---|---|---|---|---|---| | AURORAL |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| | INTENSITY | Eve.Twilight/Midnight/Morn.Twilight | -------------------------------------------------------- Middle Latitude Locations ________________________________________________________ | EXTREMELY HIGH | | | | | | | | | | | CONFIDENCE | VERY HIGH | | | | | | | | | | | LEVEL | HIGH | | | | | | | | | | | ------- | MODERATE | | | | | | | | | | * | 75% | LOW | * | | | | | | | | * |***| | NOT VISIBLE |***|***|***|***|***|***|***|***|***|***| |----------------|---|---|---|---|---|---|---|---|---|---| | AURORAL |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| | INTENSITY | Eve.Twilight/Midnight/Morn.Twilight | -------------------------------------------------------- Low Latitude Locations ________________________________________________________ | EXTREMELY HIGH | | | | | | | | | | | CONFIDENCE | VERY HIGH | | | | | | | | | | | LEVEL | HIGH | | | | | | | | | | | ------- | MODERATE | | | | | | | | | | | 90% | LOW | | | | | | | | | | | | NOT VISIBLE |***|***|***|***|***|***|***|***|***|***| |----------------|---|---|---|---|---|---|---|---|---|---| | AURORAL |Fri|Sat|Sun|Mon|Tue|Wed|Thu|Fri|Sat|Sun| | INTENSITY | Eve.Twilight/Midnight/Morn.Twilight | -------------------------------------------------------- NOTE: Version 2.00b of our Professional Dynamic Auroral Oval Simulation Software Package is now available. This professional software is particularly valuable to radio communicators, aurora photographers, educators, and astronomers. For more information regarding this software, contact: "Oler@Rho.Uleth.CA", or "COler@Solar.Stanford.Edu". For more information regarding these charts, send a request for the document, "Understanding Solar Terrestrial Reports" to: "Oler@Rho.Uleth.Ca" or to: "COler@Solar.Stanford.Edu". This document, as well as others and related data/forecasts exist on the STD BBS at: (403) 756-3008. ** End of Report ** ------------------------------ End of Info-Hams Digest V94 #41 ****************************** ******************************