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- From: oler@rho.uleth.ca (Cary Oler)
- Newsgroups: sci.space.news
- Subject: Daily Summary of Solar Geophysical Activity for 20 December
- Message-ID: <oler.724970501@honte>
- Date: 21 Dec 92 20:41:41 GMT
- Sender: news@honte.uleth.ca (News System)
- Followup-To: sci.space
- Organization: University of Lethbridge
- Lines: 126
- Approved: sci-space-news@ames.arc.nasa.gov
- Apparently-To: sci-space-news@ames.arc.nasa.gov
-
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
-
- 20 DECEMBER, 1992
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- (Based In-Part On SESC Observational Data)
-
-
- SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 20 DECEMBER, 1992
- ------------------------------------------------------------
-
- !!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 355, 12/20/92
- 10.7 FLUX=148 90-AVG=137 SSN=150 BKI=1234 2232 BAI=011
- BGND-XRAY=B4.9 FLU1=0.0E+00 FLU10=0.0E+00 PKI=2334 2332 PAI=012
- BOU-DEV=007,019,027,053,012,012,022,018 DEV-AVG=021 NT SWF=00:000
- XRAY-MAX= C3.3 @ 1629UT XRAY-MIN= B4.6 @ 0727UT XRAY-AVG= B7.6
- NEUTN-MAX= +002% @ 2030UT NEUTN-MIN= -002% @ 2120UT NEUTN-AVG= -0.4%
- PCA-MAX= +0.1DB @ 2105UT PCA-MIN= -0.3DB @ 1950UT PCA-AVG= -0.0DB
- BOUTF-MAX=55423NT @ 0514UT BOUTF-MIN=55392NT @ 1840UT BOUTF-AVG=55413NT
- GOES7-MAX=P:+103NT@ 1810UT GOES7-MIN=N:-008NT@ 1027UT G7-AVG=+071,+029,+009
- GOES6-MAX=P:+124NT@ 1750UT GOES6-MIN=E:-015NT@ 0128UT G6-AVG=+090,-003,+037
- FLUXFCST=STD:150,150,145;SESC:150,150,145 BAI/PAI-FCST=010,010,005/010,010,010
- KFCST=2332 2223 2233 2223 27DAY-AP=028,013 27DAY-KP=5554 3433 2234 3332
- WARNINGS=
- ALERTS=
- !!END-DATA!!
-
-
- SYNOPSIS OF ACTIVITY
- --------------------
-
- Solar activity was low. Region 7374 (S08E48) is the
- most impressive Region today, showing strong growth. It had two
- flares, a C1/SF at 20/0455UT and a C2/SF at 20/1730UT. An
- uncorrelated C1 event was also observed at 19/2336UT. The
- remainder of Regions were quiet with little or no development.
- Regions 7377 (N17W23) and 7378 (N13E65) were assigned today.
-
- Solar activity forecast: solar activity is expected to be
- low. Region 7374 holds the best chance of C-class activity and
- has a small chance of an isolated M-class flare.
-
- The geomagnetic field has been at quiet to unsettled
- levels for the past 24 hours. Mid-latitude stations saw a
- brief period of active levels at 20/1200UT. High latitude
- stations experienced minor to major storm levels from 20/0900
- to 20/1200UT.
-
- Geophysical activity forecast: the geomagnetic field is
- expected to be quiet to unsettled for the entire forecast
- period.
-
- Event probabilities 21 dec-23 dec
-
- Class M 20/20/20
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
-
- Geomagnetic activity probabilities 21 dec-23 dec
-
- A. Middle Latitudes
- Active 15/15/10
- Minor Storm 05/05/05
- Major-Severe Storm 01/01/01
-
- B. High Latitudes
- Active 25/15/15
- Minor Storm 10/05/05
- Major-Severe Storm 01/01/01
-
- HF propagation conditions continued near-normal over all
- regions. Similar near-normal propagation is expected to
- persist for the next 72 hours (through 23 December inclusive).
- No recurrent signal degradation is expected until around
- 26 December.
-
-
- COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
- ========================================================
-
- REGIONS WITH SUNSPOTS. LOCATIONS VALID AT 20/2400Z DECEMBER
- -----------------------------------------------------------
- NMBR LOCATION LO AREA Z LL NN MAG TYPE
- 7368 S33W39 088 0010 BXO 03 002 BETA
- 7369 S09W09 058 0000 AXX 02 002 ALPHA
- 7370 S08W00 049 0050 CSO 04 003 BETA
- 7371 S11W77 126 0150 DSO 10 008 BETA
- 7372 S12E31 018 0050 HSX 02 001 ALPHA
- 7374 S08E48 001 0450 DAI 08 019 BETA
- 7375 N14W54 103 0070 DAO 08 010 BETA
- 7376 N17E58 351 0010 BXO 04 003 BETA
- 7377 N17W23 072 0000 AXX 00 001 ALPHA
- 7378 N13E65 344 0050 HAX 02 001 ALPHA
- 7366 S10W60 109 PLAGE
- REGIONS DUE TO RETURN 21 DECEMBER TO 23 DECEMBER
- NMBR LAT LO
- 7356 S13 318
- 7361 S16 308
-
-
- LISTING OF SOLAR ENERGETIC EVENTS FOR 20 DECEMBER, 1992
- -------------------------------------------------------
- BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP SWF
- NONE
-
-
-
- POSSIBLE CORONAL MASS EJECTION EVENTS FOR 20 DECEMBER, 1992
- -----------------------------------------------------------
- BEGIN MAX END LOCATION TYPE SIZE DUR II IV
- 20/ 1447 1630 1707 LDE C3.3 140
-
-
- INFERRED CORONAL HOLES. LOCATIONS VALID AT 20/2400Z
- ---------------------------------------------------
- ISOLATED HOLES AND POLAR EXTENSIONS
- EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN
- NO DATA AVAILABLE FOR ANALYSIS
-
-
- ** End of Daily Report **
-