Xref: news.cs.tut.fi aus.radio:441 rec.radio.amateur.misc:52350 rec.radio.info:5123 Newsgroups: aus.radio,ips.solar.activity,rec.radio.amateur.misc,rec.radio.info Path: news.cs.tut.fi!news.cc.tut.fi!news.funet.fi!sunic!trane.uninett.no!nac.no!ifi.uio.no!wabbit.cc.uow.edu.au!metro!ipso!rwc From: rwc@flare.syd.ips.oz.au (Regional Warning Centre) Subject: IPS Daily Report - 26 May 94 Message-ID: <1994May26.232223.27792@ips.oz.au> Followup-To: aus.radio,rec.radio.amateur.misc Sender: news@ips.oz.au (Usenet News) Nntp-Posting-Host: flare.syd.ips.oz.au Organization: IPS Radio and Space Services. Sydney, Australia. Date: Thu, 26 May 1994 23:22:23 GMT Approved: rec-radio-info@ve6mgs.ampr.ab.ca Lines: 90 SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT ISSUED AT 26/2330Z MAY 1994 BY IPS RADIO AND SPACE SERVICES FROM THE REGIONAL WARNING CENTRE (RWC), SYDNEY. SUMMARY FOR 26 MAY AND FORECAST UP TO 29 MAY IPS Warning 15 was issued on 26 May and is still current for interval 28 May to 7 June. ----------------------------------------------------------- 1A. SOLAR SUMMARY Activity: very low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number : 071/006 1B. SOLAR FORECAST 27 May 28 May 29 May Activity Very low Very low Very low Fadeouts None expected None expected None expected Forecast 10.7 cm flux/Equivalent Sunspot Number : 070/005 1C. SOLAR COMMENT None. ----------------------------------------------------------- 2A. MAGNETIC SUMMARY Geomagnetic field at Learmonth: quiet to unsettled, with brief active period 09-12UT. Estimated Indices : A K Observed A Index 25 May Learmonth 11 2334 2222 Fredericksburg 12 24 Planetary 15 20 Observed Kp for 25 May: 3544 2324 2B. MAGNETIC FORECAST DATE Ap CONDITIONS 27 May 15 Quiet to unsettled. 28 May 20 Quiet to unsettled. 29 May 35 Quiet to unsettled initially, then increasing to active to minor storm levels. 2C. MAGNETIC COMMENT Recurrent disturbance expected from 29 May onwards. 3A. GLOBAL HF PROPAGATION SUMMARY LATITUDE BAND DATE LOW MIDDLE HIGH 26 May normal normal fair PCA Event : None. 3B. GLOBAL HF PROPAGATION FORECAST LATITUDE BAND DATE LOW MIDDLE HIGH 27 May normal normal fair 28 May normal normal normal 29 May normal normal normal-fair 3C. GLOBAL HF PROPAGATION COMMENT NONE. ----------------------------------------------------------- 4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY MUFs at Sydney were near predicted monthly values, with 15-20% enhancements 08-13UT. Observed T index for 26 May: 38 Predicted Monthly T Index for May is 30. 4B. AUSTRALIAN REGION IONOSPHERIC FORECAST DATE T-index MUFs 27 May 35 Near predicted monthly values. 28 May 30 Near predicted monthly values. 29 May 20 Near predicted monthly values. 4C. AUSTRALIAN REGION COMMENT Degraded HF comms expected after 29 May. -- IPS Regional Warning Centre, Sydney |IPS Radio and Space Services email: rwc@ips.oz.au fax: +61 2 4148331 |PO Box 5606 RWC Duty Forecaster tel: +61 2 4148329 |West Chatswood NSW 2057 Recorded Message tel: +61 2 4148330 |AUSTRALIA