Date: Fri, 11 Feb 94 04:30:59 PST From: Ham-Space Mailing List and Newsgroup Errors-To: Ham-Space-Errors@UCSD.Edu Reply-To: Ham-Space@UCSD.Edu Precedence: Bulk Subject: Ham-Space Digest V94 #25 To: Ham-Space Ham-Space Digest Fri, 11 Feb 94 Volume 94 : Issue 25 Today's Topics: Daily IPS Report - 11 Feb 94 Inexpensive GPS SAREX Keps for Feb 8 STS Downlink Two-Line Orbital Element Set: Space Shuttle Weekly IPS Report - 11 Feb 94 Send Replies or notes for publication to: Send subscription requests to: Problems you can't solve otherwise to brian@ucsd.edu. Archives of past issues of the Ham-Space Digest are available (by FTP only) from UCSD.Edu in directory "mailarchives/ham-space". 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: 10 Feb 94 23:29:33 GMT From: munnari.oz.au!newshost.anu.edu.au!sserve!usage!metro!news.ci.com.au!eram!dave@network.ucsd.edu Subject: Daily IPS Report - 11 Feb 94 To: ham-space@ucsd.edu IPS RADIO AND SPACE SERVICES AUSTRALIA Daily Solar And Geophysical Report Issued at 2330 UT 10 February 1994 Summary for 10 February and Forecast up to 13 February IPS Warning 03 was issued on 03 Feb and expires today. ----------------------------------------------------------- 1A. SOLAR SUMMARY Activity: low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number : 094/040 1B. SOLAR FORECAST 11 February 12 February 13 February Activity Low Low to moderate Low to moderate Fadeouts None expected None expected None expected Forecast 10.7 cm flux/Equivalent Sunspot Number : 090/034 1C. SOLAR COMMENT Previously flaring region (M class) has yet to appear. ----------------------------------------------------------- 2A. MAGNETIC SUMMARY Geomagnetic field at Learmonth : ??? Estimated Indices : A K Observed A Index 9 February Learmonth 21 3333 5442 Fredericksburg 27 32 Planetary 30 34 2B. MAGNETIC FORECAST DATE Ap CONDITIONS 11 Feb 20 Active. 12 Feb 20 Active. 13 Feb 20 Active. 2C. MAGNETIC COMMENT Magnetic activity did not decline as expected, futher active periods are now expected. Another recurrent disturbance is expected Feb 14-15. 3A. GLOBAL HF PROPAGATION SUMMARY LATITUDE BAND DATE LOW MIDDLE HIGH 10 Feb fair-normal fair-normal poor-fair PCA Event : None. 3B. GLOBAL HF PROPAGATION FORECAST LATITUDE BAND DATE LOW MIDDLE HIGH 11 Feb normal fair poor 12 Feb normal fair poor 13 Feb normal fair poor 3C. GLOBAL HF PROPAGATION COMMENT Propagation conditions are now expected to remain fair for mid lats and fair-poor at high lats until Feb 16. ----------------------------------------------------------- 4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY MUFs at Sydney were about 15% below predicted monthly values T index: -4 4B. AUSTRALIAN REGION IONOSPHERIC FORECAST DATE T-index MUFs 11 Feb 10 10 to 15% below predicted monthly values. 12 Feb 20 About 10% below predicted monthly values. 13 Feb 20 About 10% below predicted monthly values. Predicted Monthly T Index for February is 30. 4C. AUSTRALIAN REGION COMMENT Ionosphere did not recover as expected yesterday, probably due to continuing magnetic activity. Another disturbed period is expected Feb 14-16. -- Dave Horsfall (VK2KFU) VK2KFU @ VK2OP.NSW.AUS.OC PGP 2.3 dave@esi.COM.AU ...munnari!esi.COM.AU!dave available ------------------------------ Date: 3 Feb 1994 21:56:10 -0800 From: ftpbox!mothost!mdisea!mmddvan!vanbc.wimsey.com!vanbc.wimsey.com!not-for-mail@uunet.uu.net Subject: Inexpensive GPS To: ham-space@ucsd.edu If you call West Marine at any of their Seattlelocations you can probably get one of two "brand" name handheld gps, multi-channel units for $449.00. These give location, elevation, direction and speed of travel, and bounce quite well. I really don't think you will do much better than that, since the OEM units are priced to discourage amateur players like us. They offer less, need more external support (antennas, software and a laptop or better), but cost more. Good luck / Mark ------------------------------ Date: Mon, 7 Feb 1994 19:51:06 -0700 From: nntp.ucsb.edu!library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!math.ohio-state.edu!cyber2.cyberstore.ca!nntp.cs.ubc.ca!alberta!ve6mgs!usenet@network.ucsd.edu Subject: SAREX Keps for Feb 8 To: ham-space@ucsd.edu SB SAREX @ AMSAT $STS-60.009 SAREX Keps for Feb. 8 The official SAREX element set for today will be GSFC-009. This element set was generated by Ron Parise, WA4SIR of the Goddard Space Flight Center. Gil Carman, WA5NOM reports that the predictions using GSFC-009 differed from GSFC-005 by approximately 11 seconds. STS-60 1 22977U 94006A 94 38.25534638 0.00000289 00000-0 64918-5 0 90 2 22977 56.9888 199.2675 0009131 272.9026 87.0997 15.72311412 607 Satellite: STS-60 Catalog number: 22977 Epoch time: 94038.25534638 (07 FEB 94 06:07:41.93 UTC) Element set: GSFC-009 Inclination: 56.9888 deg RA of node: 199.2675 deg Space Shuttle Flight STS-60 Eccentricity: 0.0009131 Keplerian Elements Arg of perigee: 272.9026 deg Mean anomaly: 87.0997 deg Mean motion: 15.72311412 rev/day Semi-major Axis: 6730.4250 Km Decay rate: 0.29E-05 rev/day*2 Apogee Alt: 358.18 Km Epoch rev: 60 Perigee Alt: 345.89 Km NOTE - This element set is based on NORAD element set # 009. The spacecraft has been propagated to the next ascending node, and the orbit number has been adjusted to bring it into agreement with the NASA numbering convention. Submitted by Frank H. Bauer, KA3HDO, for the SAREX Working Group /EX ------------------------------ Date: 11 Feb 94 00:10:59 GMT From: ogicse!psgrain!usenet@network.ucsd.edu Subject: STS Downlink To: ham-space@ucsd.edu Does anyone happen to have the actual unified S-Band downlink or TDRS freqs from the Shuttle? Thanks! dwetzel@rain.com ------------------------------ Date: Thu, 10 Feb 1994 22:31:16 GMT From: pagesat.net!olivea!charnel!yeshua.marcam.com!zip.eecs.umich.edu!destroyer!sol.ctr.columbia.edu!howland.reston.ans.net!paladin.american.edu!zombie.ncsc.mil!blackbird.afit.af.@@news.cerf.net Subject: Two-Line Orbital Element Set: Space Shuttle To: ham-space@ucsd.edu The most current orbital elements from the NORAD two-line element sets are carried on the Celestial BBS, (513) *253-9767*, and are updated daily (when possible). Documentation and tracking software are also available on this system. As a service to the satellite user community, the most current elements for the current shuttle mission are provided below. The Celestial BBS may be accessed 24 hours/day at 300, 1200, 2400, 4800, or 9600 bps using 8 data bits, 1 stop bit, no parity. Element sets (also updated daily), shuttle elements, and some documentation and software are also available via anonymous ftp from archive.afit.af.mil (129.92.1.66) in the directory pub/space. STS 60 1 22977U 94006A 94041.25000000 .00000417 00000-0 75807-5 0 154 2 22977 56.9879 185.8034 0006879 304.3677 92.0407 15.71677067 1068 1994006J 1 22998U 94006J 94040.80785293 -.00000585 00000-0 00000+0 0 10 2 22998 56.9859 187.7896 0008776 293.9389 119.8855 15.72168613 19 -- Dr TS Kelso Assistant Professor of Space Operations tkelso@afit.af.mil Air Force Institute of Technology ------------------------------ Date: 10 Feb 94 23:30:14 GMT From: munnari.oz.au!newshost.anu.edu.au!sserve!usage!metro!news.ci.com.au!eram!dave@network.ucsd.edu Subject: Weekly IPS Report - 11 Feb 94 To: ham-space@ucsd.edu 4 FEBRUARY - 10 FEBRUARY 1994 Issue No 06 Date of issue: 11 February, 1994 INDICES: Date 04 05 06 07 08 09 10 10cm 095 093 095 096 095 101 094 A 10 21 39 45 42 32 ( 27) T 43 50 -4 -31 -24 21 -4 SUMMARY OF ACTIVITY February 4 Solar activity was very low. The geomagnetic field at Learmonth (WA) was mostly quiet with unsettled to active conditions 12-21UT. Ionospheric F2 critical frequencies at Sydney were near predicted monthly values to 15% enhanced during local night. February 5 Solar activity was very low. The geomagnetic field at Learmonth (WA) was mostly quiet to unsettled. Ionospheric F2 critical frequencies at Sydney were near predicted monthly values to 30% enhanced during local night. February 6 Solar activity was very low. The geomagnetic field at Learmonth (WA) was at storm levels. Ionospheric F2 critical frequencies at Sydney were about 10-20% below predicted monthly values February 7 Solar activity was very low. The geomagnetic field at Learmonth (WA) was storm levels during local night. Ionospheric F2 critical frequencies at Sydney were 10 to 30% below predicted monthly values. .SK February 8 Solar activity was very low. The geomagnetic field at Learmonth (WA) was at active to minor storm levels. Ionospheric F2 critical frequencies at Sydney were 10 to 30% below predicted monthly values. February 9 Solar activity was very low. The geomagnetic field at Learmonth (WA) was at active to minor storm levels observed during local night. Ionospheric F2 critical frequencies at Sydney were depressed 20-30% 00-02UT then recovering to near predicted values. February 10 Solar activity was low. The geomagnetic field at Learmonth (WA) was at active to minor storm levels during local night. Ionospheric F2 critical frequencies at Sydney were about 15% below predicted monthly values. Comment: Strong magnetic storm activity was observed during Feb 6-8. This activity arrived a day earlier than expected and was stronger than expected. Storm was due to a coronal hole. FORECAST FOR THE NEXT WEEK (11 - 17 FEBRUARY) SOLAR: low to moderate GEOMAGNETIC: active due to coronal hole. IONOSPHERIC: degraded HF communications expected all week. MUFs are expected to be 10-15% depressed on IPS predicted monthly values. -- Dave Horsfall (VK2KFU) VK2KFU @ VK2OP.NSW.AUS.OC PGP 2.3 dave@esi.COM.AU ...munnari!esi.COM.AU!dave available ------------------------------ End of Ham-Space Digest V94 #25 ******************************