Xref: news.cs.tut.fi aus.radio:447 rec.radio.amateur.misc:52531 rec.radio.info:5162 Newsgroups: aus.radio,ips.solar.activity,rec.radio.amateur.misc,rec.radio.info Path: news.cs.tut.fi!news.funet.fi!sunic!EU.net!uunet!munnari.oz.au!yoyo.aarnet.edu.au!yarrina.connect.com.au!harbinger.cc.monash.edu.au!news.cs.su.oz.au!metro!ipso!rwc From: rwc@flare.syd.ips.oz.au (Regional Warning Centre) Subject: IPS Daily Report - 30 May 94 Message-ID: <1994May30.232340.5337@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: Mon, 30 May 1994 23:23:40 GMT Approved: rec-radio-info@ve6mgs.ampr.ab.ca Lines: 89 SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT ISSUED AT 30/2330Z MAY 1994 BY IPS RADIO AND SPACE SERVICES FROM THE REGIONAL WARNING CENTRE (RWC), SYDNEY. SUMMARY FOR 30 MAY AND FORECAST UP TO 2 JUNE IPS Warning 15 was issued on 26 May and is current for interval 28 May to 7 June. ----------------------------------------------------------- 1A. SOLAR SUMMARY Activity: very low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number : 069/003 1B. SOLAR FORECAST 31 May 01 June 02 June 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: active to minor storm Estimated Indices : A K Observed A Index 29 May Learmonth 28 4444 4453 Fredericksburg 31 33 Planetary 40 37 Observed Kp for 29 May: 5655 4534 2B. MAGNETIC FORECAST DATE Ap CONDITIONS 31 May 35 Active to minor storm. 01 Jun 35 Active to minor storm. 02 Jun 35 Active to minor storm. 2C. MAGNETIC COMMENT disturbances expected until 7 June due to a coronal hole. 3A. GLOBAL HF PROPAGATION SUMMARY LATITUDE BAND DATE LOW MIDDLE HIGH 30 May normal-fair normal-fair poor-fair PCA Event : None. 3B. GLOBAL HF PROPAGATION FORECAST LATITUDE BAND DATE LOW MIDDLE HIGH 31 May normal-fair normal-fair poor-fair 01 Jun normal-fair normal-fair poor-fair 02 Jun normal normal-fair poor-fair 3C. GLOBAL HF PROPAGATION COMMENT NONE. ----------------------------------------------------------- 4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY MUFs at Sydney were near predicted monthly values to 15% depressed, with strong spread F observed during local night. Observed T index for 30 May: 23 Predicted Monthly T Index for May is 30. 4B. AUSTRALIAN REGION IONOSPHERIC FORECAST DATE T-index MUFs 31 May 20 Near predicted monthly values to 15% depressed. 01 Jun 15 Near predicted monthly values to 15% depressed. 02 Jun 15 Near predicted monthly values to 15% depressed. 4C. AUSTRALIAN REGION COMMENT Strong spread F expected during local night. Degraded HF comms expected until 8 June due to coronal hole sourced activity. -- 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