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- Newsgroups: sci.space.news
- Path: sparky!uunet!think.com!ames!dont-send-mail-to-path-lines
- From: oler@rho.uleth.ca (Cary Oler)
- Subject: Daily Summary of Solar Geophysical Activity for 30 December
- Message-ID: <oler.725793458@honte>
- Apparently-To: sci-space-news@ames.arc.nasa.gov
- Followup-To: sci.space
- Sender: news@honte.uleth.ca (News System)
- Organization: University of Lethbridge
- Date: Thu, 31 Dec 1992 09:17:38 GMT
- Approved: sci-space-news@ames.arc.nasa.gov
- Lines: 139
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
-
- 30 DECEMBER, 1992
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- (Based In-Part On SESC Observational Data)
-
-
- SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 30 DECEMBER, 1992
- ------------------------------------------------------------
-
- !!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 365, 12/30/92
- 10.7 FLUX=125.7 90-AVG=139 SSN=084 BKI=2323 3211 BAI=009
- BGND-XRAY=B3.8 FLU1=2.5E+05 FLU10=9.4E+03 PKI=2323 3211 PAI=010
- BOU-DEV=015,027,013,025,023,010,009,005 DEV-AVG=015 NT SWF=00:000
- XRAY-MAX= C5.2 @ 0939UT XRAY-MIN= B3.1 @ 0459UT XRAY-AVG= B8.3
- NEUTN-MAX= +001% @ 2345UT NEUTN-MIN= -003% @ 0235UT NEUTN-AVG= -0.5%
- PCA-MAX= +0.1DB @ 0725UT PCA-MIN= -0.2DB @ 1950UT PCA-AVG= -0.0DB
- BOUTF-MAX=55422NT @ 1421UT BOUTF-MIN=55397NT @ 1919UT BOUTF-AVG=55411NT
- GOES7-MAX=P:+111NT@ 1907UT GOES7-MIN=N:-006NT@ 0949UT G7-AVG=+077,+033,+008
- GOES6-MAX=P:+133NT@ 1859UT GOES6-MIN=E:-013NT@ 2355UT G6-AVG=+095,-000,+042
- FLUXFCST=STD:120,115,115;SESC:120,115,115 BAI/PAI-FCST=010,010,010/010,010,010
- KFCST=0003 5000 0003 5000 27DAY-AP=012,011 27DAY-KP=2423 3322 2333 3222
- WARNINGS=*SWF
- ALERTS=**SWEEP:II=2@0255;**SWEEP:II=1@2131UTC;**SWEEP:II=1@0837UTC
- !!END-DATA!!
-
-
- SYNOPSIS OF ACTIVITY
- --------------------
-
- Solar activity was low. Region 7376 (N15W77) pro-
- duced all of today's flare activity. The largest event was a
- C5.2/SF at 0939Z. Two smaller flares were accompanied by weak
- Type II sweeps: a C1/SF at 0248Z and a C2/SF at 0825Z. This
- group continues to show growth and bright plage but seems to
- have a fairly simple magnetic structure. Region 7381 (N04W39)
- continued to decay and was stable. Surge activity was reported
- on east limb at about S12.
-
- Solar activity forecast: solar activity is expected to be
- low. Solar background and activity levels are expected to
- decline with the departure of Region 7376 from west limb on
- 1 January.
-
- CAMPAIGN NOTICE:
-
- Word from Antarctica is that HIREGS is prepared and ready
- to launch as soon as 0600UT on 31 Dec. The only impediment to
- launch now is surface winds. This campaign begins following
- successful launch and ascent of HIREGS. Observatories who wish
- to begin taking background data may do so. Adequate target
- regions are sparse. Region 7376 (N15W78 at 31/0000UT) is
- producing occasional C-class flares and should be considered as
- the primary target region at this time. The limb near SE10
- continues to exhibit optical surging but no spots are visible
- yet. This area is the secondary target. A campaign action
- notice will be issued when the actual launch time is known.
-
- The geomagnetic field was mostly quiet to unsettled. Some
- brief active periods were observed at high latitudes.
-
- Geophysical activity forecast: the geomagnetic field is
- expected to be generally unsettled for the next three days.
-
- Event probabilities 31 dec-02 jan
-
- Class M 10/10/05
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
-
- Geomagnetic activity probabilities 31 dec-02 jan
-
- A. Middle Latitudes
- Active 20/20/20
- Minor Storm 10/10/10
- Major-Severe Storm 01/01/01
-
- B. High Latitudes
- Active 20/20/20
- Minor Storm 10/10/10
- Major-Severe Storm 01/01/01
-
- HF propagation conditions improved over all regions today.
- High latitude paths transiting the auroral zones continued to
- experience minor signal degradation, but have improved steadily
- over the last 24 hours. Conditions should become near-normal
- over all regions during the next 24 to 72 hours.
-
-
- COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
- ========================================================
-
- REGIONS WITH SUNSPOTS. LOCATIONS VALID AT 30/2400Z DECEMBER
- -----------------------------------------------------------
- NMBR LOCATION LO AREA Z LL NN MAG TYPE
- 7374 S09W88 006 0080 HSX 02 001 ALPHA
- 7376 N15W78 356 0190 DAO 08 005 BETA
- 7378 N11W65 343 0040 HSX 01 001 ALPHA
- 7379 S11W39 317 0060 CAO 04 005 BETA
- 7381 N04W39 317 0170 CAO 08 011 BETA
- 7383 S05W44 322 0010 HSX 01 001 ALPHA
- 7382 S18W16 294 PLAGE
- 7384 N02W66 344 PLAGE
- 7385 S23W83 001 PLAGE
- REGIONS DUE TO RETURN 31 DECEMBER TO 02 JANUARY
- NMBR LAT LO
- 7362 S06 176
- 7360 S19 164
-
-
- LISTING OF SOLAR ENERGETIC EVENTS FOR 30 DECEMBER, 1992
- -------------------------------------------------------
- BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP SWF
- 0240 0248 0253 7376 N14W63 C1.6 SF II
- 0817 0825 0830 7376 N14W66 C2.8 SF II
- 2105 2129 2149 C2.7 II
-
-
- POSSIBLE CORONAL MASS EJECTION EVENTS FOR 30 DECEMBER, 1992
- -----------------------------------------------------------
- BEGIN MAX END LOCATION TYPE SIZE DUR II IV
- 30/B0251 A0258 N14W63 RSP C1.6 13 2
- 30/B0826 A0837 N14W66 RSP C2.8 13 1
- 30/B2131 31/A0000 RSP C2.7 44 1
-
-
- INFERRED CORONAL HOLES. LOCATIONS VALID AT 30/2400Z
- ---------------------------------------------------
- ISOLATED HOLES AND POLAR EXTENSIONS
- EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN
- NO DATA AVAILABLE FOR ANALYSIS
-
-
- ** End of Daily Report **
-