Solarcycle 24

SOLAR-TERRESTRIAL DATA

 






Cycle 24 Records  (Since Jan 2008) [Firsts List]

 SOLAR Flux - 190 (9/24/2011)   SUNSPOT # 208 (11/09/11)
 FLARE - X6.9 (8/9/2011)   Geomagnetic A Indice - --
DAYS IN A ROW WITH A SUNSPOT - 198 (8/13/2011)

Latest Solar News and Updates

CME Update / Solar Update
2/24/2012 by Kevin VE3EN at 21:10 UTC
Comment on Message Board

Updated 2/24/2012 @ 21:10 UTC
Coronal Mass Ejection Part II and III
A pair of explosions can be viewed in the latest STEREO Behind COR2 images. The latest events were the result of a filament eruption. This first blast appears to be headed north and is not Earth directed. The second event may be Earth directed, however more images will be needed to confirm this. Watch the movie presentation below.

UPDATE: As per the latest WSA-Enlil Solar Wind Prediction, a glancing blow CME impact will be possible late on February 26th. Click HERE to watch the latest model run.

Updated 2/24/2012 @ 14:20 UTC
Solar Update
Solar activity is currently very low. Sunspots 1420 and 1422 are rotating towards the western limb. New sunspot 1423 was numbered on Thursday and a small new sunspot rotated into view off the eastern limb.

A filament channel eruption in the northeast quadrant, produced a bright Coronal Mass Ejection (CME) early Friday morning. A portion of the cloud may be Earth directed.

Sunspot 1423 and new Region (Friday) - SDO

SE Limb Prominences (Thursday) - By Ron Cottrell

Added 2/23/2012 @ 11:50 UTC
Coronal Mass Ejection
A Coronal Mass Ejection (CME) is seen in the latest STEREO Ahead COR2 images on Thursday morning, and the source appears to be a filament channel eruption near region 1419 in the northwest quadrant. The blast site is circled below in the STEREO Ahead image. After a close look, the expanding cloud appears to be directed mostly to the west and not towards Earth. [Movie]

NOAA Solar Report - [SIDC Report]

						
								Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.

Updated Feb 24 2200 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 055 Issued at 2200Z on 24 Feb 2012

IA.  Analysis of Solar Active Regions and Activity from  23/2100Z
to 24/2100Z:  Solar activity was very low.  An asymmetrical, halo CME
was observed in SOHO/LASCO C2 imagery beginning at 24/0346Z.  The
associated event was a filament eruption centered near N32E38 which
was observed in SDO/AIA 304 imagery beginning at 24/0225Z.  New
Region 1424 (N09E68) rotated on the East limb and was numbered.

IB.  Solar Activity Forecast:  Solar activity is expected to be very
low with a chance for C-class activity for the next three days (25 -
27 February).

IIA.  Geophysical Activity Summary 23/2100Z to 24/2100Z:
The geomagnetic field was mostly quiet.  Solar wind speeds at the ACE
spacecraft ranged from approximately 400 - 460 km/s while the Bz
component of the Interplanetary Magnetic Field did not vary much
beyond +/- 5 nT.

IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be mostly quiet on days 1 and 2 (25 - 26 February).  A
glancing blow from todays CME is expected to become geoeffective
early on day 3 (27 February) causing unsettled to active periods
with isolated minor storm periods possible.

III.  Event Probabilities 25 Feb-27 Feb
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green


[Latest and Full Report]
				

Sunspot Summary - [SolarHam.com Sunspot Summary]

				:Solar_Region_Summary: 2012 Feb 23
# Region   Location         Sunspot Characteristics
#           Helio                      Spot  Spot  Mag.
# Num   Lat.,CMD  Long.  Area  Extent  class count class
 1420    N11W71    198     30     1     HRX    1      A
 1421    N14W06    133      0     1     AXX    1      A
 1422    N15W52    179    130     5     CAO    9      B
 1423    N18E70     57    120     2     HSX    1      A

A - Alpha (single polarity spot).
B - Beta (bipolar spot configuration).
G - Gamma (atypical mixture of polarities).
BG - Beta-Gamma (mixture of polarities in a dominantly bipolar configuration).
D - Delta (opposite polarity umbrae within single penumbra).
BD - Beta with a Delta configuration.
BGD - Beta-Gamma with a Delta configuration.

[Latest Sunspot Summary]




Latest Solar News and Updates

Solar Update
2/4/2012 by Kevin VE3EN at 14:25 UTC
Comment on Message Board

Updated 2/4/2012 @ 14:25 UTC
Solar Update
Solar activity remains at very low levels. Sunspots 1410 and 1413 remain stable and are both showing signs of decay. A small new sunspot formed at mid latitude. Expect our side of the Sun to remain quiet this weekend.

A faint CME is seen in the latest Lasco and STEREO images. It appears to be Earth facing, but directed to the north.

The only current visible Sunspots (Saturday) - SDO

CaK image of 1410 and 1413 (Friday) - By Ron Cottrell


Added 2/3/2012 @ 16:20 UTC
Farside Activity
The Earth facing side of the Sun may be quiet, however the farside of the Sun appears to be a different story. Yesterday there were two Coronal Mass Ejections, including this one which was directed to the north and away from Earth.

Farside Coronal Mass Ejection (Thursday) - SDO


Added 2/1/2012 @ 15:55 UTC
31 Days in 15 Seconds
Below is video showing the 31 day Sunspot rotation for January 2012.
Images by SDO/HMI.

NOAA Solar Report - [SIDC Report]

Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.

Updated Feb 03 2200 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 034 Issued at 2200Z on 03 Feb 2012

IA.  Analysis of Solar Active Regions and Activity from  02/2100Z
to 03/2100Z:  Solar activity was at very low levels.  The disk and
limb was quiet and stable with no Earth-directed CMEs observed
during the period.

IB.  Solar Activity Forecast:  Solar activity is expected to be very
low to low for the next three days (04 - 06 February).

IIA.  Geophysical Activity Summary 02/2100Z to 03/2100Z:
The geomagnetic field was at quiet to unsettled levels with isolated
high latitude active periods due to the waning effects of a
geoeffective coronal hole high speed stream.  During the period, ACE
satellite observations indicated wind speeds averaged about 425 km/s
while the Bz component of the interplanetary magnetic field varied
between +/- 5 nT.

IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at mostly quiet levels for the next three days (04 -
06 February).

III.  Event Probabilities 04 Feb-06 Feb
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       Green


[Latest and Full Report]


Sunspot Summary - [SolarHam.com Sunspot Summary]


:Solar_Region_Summary: 2012 Feb 03 # Region Location Sunspot Characteristics # Helio Spot Spot Mag. # Num Lat.,CMD Long. Area Extent class count class 1408 N07W0* 139 70 1 CSO 1 B 1410 N17W29 59 190 5 CSO 4 B 1413 N08W33 63 90 6 DSO 15 B

Latest Solar News and Updates

X1.7 Solar Flare / Moderate Radiation Storm
01/27/2012 by Kevin VE3EN at 21:18 UTC
Comment on Message Board

Updated 1/27/2012 @ 21:17 UTC
Major Solar Flare / S2 Radiation Storm
Sunspot 1402 located on the northwest limb, just produced a major X1.7 Solar Flare at 18:37 UTC. An R3 Level Radio Blackout resulted ,which led to the fading of HF signals on the sunlit side of Earth. Signals have since recovered. The proton levels are on the rise again and the Moderate S2 level Radiation Storm threshold has been reached. A movie of the solar flare is listed below. You can also monitor SolarHam Facebook for more updates.

This event generated Type II and Type IV sweep frequency events. A 10cm Radio Burst (TenFlare) lasting 37 minutes was observed and measured 810 pfu.

SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jan 27 1809 UTC
Maximum Time: 2012 Jan 27 1824 UTC
End Time: 2012 Jan 27 1846 UTC
Duration: 37 minutes
Peak Flux: 810 sfu

ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2012 Jan 27 2105 UTC
NOAA Scale: S2 - Moderate

UPDATE A Full Halo coronal mass ejection (CME) is seen in the latest Lasco and STEREO Ahead COR2 images. Due to the spots location, initial indications appear that it is directed to the west. More data will be needed to determine if a glancing blow will be possible.

Full Halo CME (Friday) - STEREO Ahead COR2


Added 1/27/2012 @ 20:25 UTC
Top 10 Flares of Cycle 24
So where does the latest solar event rank in the top 10 list of Solar Flares during Solar Cycle 24?. The X1.7 on Friday ranks #7. Below is the updated Top 10 list of solar flares during Cycle 24 and is organized by Size, Date, Year and Sunspot number.

X6.9 - August 9 2011 (1263)
X2.2 - February 15 2011 (1158)
X2.1 - September 6 2011 (1283)
X1.9 - November 3 2011 (1339)
X1.9 - September 24 2011 (1302)
X1.8 - September 7 2011 (1283)
X1.7 - January 27 2012 (1402)
X1.5 - March 9 2011 (1166)
X1.4 - September 22 2011 (1302)
M9.3 - August 4 2011 (1261)


Updated 1/27/2012 @ 14:30 UTC
Solar Update
Sunspot 1402 is now located on the western limb and will soon be out of direct Earth view. This region continued to produce C-Class flares over the past 24 hours.

New Sunspot 1410 was numbered on Thursday as it rotated into view off the eastern limb. A couple of small sunspots appear to be forming today at various locations, including the southern hemisphere. There will remain the chance for C-Class flares heading into the weekend.

A CME is seen in the latest Lasco images off the southwest limb. This appears to be a non Earth directed explosion.

New Sunspot 1410 and small companion (Friday) - SDO

Magnetic Looping above 1402 (Thursday) - SDO


Added 1/26/2012 @ 19:45 UTC
The Sun in 24 hours
Here is a new 24 Hour, GOES-15 Solar X-Ray Imager (SXI) movie. You can see activity around both Sunspot 1402 in the northwest quadrant and a new region on the northeast limb. The movie includes the C6.4 flare from early this morning.



Older News - Click HERE >>>

NOAA Solar Report - [SIDC Report]

						
								Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.

Updated 26 2200 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 026 Issued at 2200Z on 26 Jan 2012

IA.  Analysis of Solar Active Regions and Activity from  25/2100Z
to 26/2100Z:  Solar activity was low. Region 1402 (N29W72) produced
several C-class events, the largest a C7 flare at 26/0149Z. The
region also produced a long duration C6 flare at 26/0542Z. An
associated partial-halo CME was first visible in C2 LASCO imagery at
26/0436Z (plane-of-sky speed approx 1044 km/s). The CME appears to
be directed well north of the ecliptic plane and towards the STEREO
A spacecraft. It is not expected to be geoeffective.

IB.  Solar Activity Forecast:  Solar activity is expected to be low
with a slight chance for an isolated M-class event on day one (27
January). Activity is expected to decrease to low levels on days two
and three (28-29 January) after Region 1402 rotates around the west
limb.

IIA.  Geophysical Activity Summary 25/2100Z to 26/2100Z:
The geomagnetic field was quiet during the past 24 hours. The greater
than 10 MeV Proton event that began at 23/0530Z and reached a
maximum value of 6310 pfu at 24/1530Z, is still in progress.

IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled on days one and two (27-28
January) due to a recurrent coronal hole high speed stream (CH HSS).
Mostly quiet conditions are expected on day three (29 January) as
effects from the CH HSS subside. The greater than 10 MeV Proton
event is expected to decrease below the 10 pfu threshold early on
day one (27 January).

III.  Event Probabilities 27 Jan-29 Jan
Class M    10/01/01
Class X    01/01/01
Proton     50/01/01
PCAF       Yellow


[Latest and Full Report]

				

Sunspot Summary - [SolarHam.com Sunspot Summary]

				:Solar_Region_Summary: 2012 Jan 26
# Region   Location         Sunspot Characteristics
#           Helio                      Spot  Spot  Mag.
# Num   Lat.,CMD  Long.  Area  Extent  class count class
 1402    N29W72    207    270     8     DSC    9      B
 1405    N13W60    194     10     1     AXX    1      A
 1408    N08E03    131    110     3     CSO    4      B
 1410    N16E66     69    120     3     HSX    1      A
		
A - Alpha (single polarity spot).
B - Beta (bipolar spot configuration).
G - Gamma (atypical mixture of polarities).
BG - Beta-Gamma (mixture of polarities in a dominantly bipolar configuration).
D - Delta (opposite polarity umbrae within single penumbra).
BD - Beta with a Delta configuration.
BGD - Beta-Gamma with a Delta configuration.

[Latest Sunspot Summary]

Major X1.9 Solar Flare / Sunspot 1339
11/03/2011 by Kevin VE3EN at 11:22 UTC
Comment on Message Board

Strong X1.9 Solar Flare :
Sunspot 1339 produced a major X1.9 Solar Flare at 20:46 UTC Thursday evening. An R3 Level Radio Blackout and a 10cm Radio Burst resulted. More to follow.

SUMMARY: 10cm Radio Burst
Begin Time: 2011 Nov 03 2016 UTC
Maximum Time: 2011 Nov 03 2027 UTC
End Time: 2011 Nov 03 2032 UTC
Duration: 16 minutes
Peak Flux: 620 sfu

1339 Produces a second M-Class Flare :
Big Sunspot 1339 is back at it again, producing an M2.5 Solar Flare which peaked at 11:11 UTC Thursday morning. This is the second M-Class event within the past 24 hours and expect the possibility for more Moderate flare activity on Thursday.

Sunspot 1339 / Solar Update :
Solar activity is now at high levels with a major X1.9 solar flare and multiple M-Class and C-Class events taking place around big Sunspot 1339. This region will continue to be a threat for strong solar flares. Sunspot 1339 will soon be in position for earth directed Coronal Mass Ejections (CMEs). More updates to follow.

A sunspot looks to be reforming in a plage area located to the southeast of region 1338. Elsewhere, Sunspot 1330 will be rotating onto the western limb and out of direct Earth view.

Big Sunspot 1339 (Wednesday) - SDO

Sunspot 1338 and small companion (Thursday) - SDO

NOAA Solar Report - [SIDC Report]

						
								
										
Prepared jointly by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center and the U.S. Air Force. Updated 2011 Nov 02 2200 UTC Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 306 Issued at 2200Z on 02 Nov 2011
IA. Analysis of Solar Active Regions and Activity from 01/2100Z to 02/2100Z: Solar activity was low. Region 1339 (N18E63) produced occasional C-class flares, the largest of which was a C7/Sf at 02/1721Z. It rotated more fully into view as a Dkc/beta-gamma group. No significant changes were observed in Region 1339, but analysis was hampered by east limb proximity. No significant changes occurred in the remaining regions. IB. Solar Activity Forecast: Solar activity is expected to be low through the period (03 - 05 November) with a chance for an M-class flare from Region 1339. IIA. Geophysical Activity Summary 01/2100Z to 02/2100Z: Geomagnetic field activity ranged from quiet to active levels with minor to major storm periods detected at high latitudes due to persistent effects from a coronal transient. IIB. Geophysical Activity Forecast: Geomagnetic field activity is expected to be at quiet to unsettled levels through the period (03 - 05 November) with a chance for active levels on 05 November due to a coronal hole high-speed stream. The CME mentioned in yesterdays report is expected to arrive at Earth early on 04 November, but is not expected to significantly disturb the field. III. Event Probabilities 03 Nov-05 Nov Class M 50/50/50 Class X 05/05/05 Proton 01/01/01 PCAF Green [Latest and Full Report]

:Solar_Region_Summary: 2011 Nov 02 # Region Location Sunspot Characteristics # Helio Spot Spot Mag. # Num Lat.,CMD Long. Area Extent class count class 1324 N13W0* 300 20 3 CSO 2 B 1330 N05W82 256 210 5 CSO 2 B 1332 N30W40 215 10 1 AXX 1 A 1333 N10W71 245 10 6 BXO 3 B 1334 N11W17 191 80 7 CSO 6 B 1335 N17W11 185 10 3 BXO 5 B 1337 N17E38 136 10 2 BXO 3 B 1338 S14E54 120 230 7 DAO 5 B 1339 N18E63 111 560 8 DKC 4 BG


Massive X6.9 Solar Flare
08/09/2011 by Kevin VE3EN at 22:00 UTC
Comment on Message Board

Massive X6.9 Solar Flare :
The largest solar flare of Cycle 24 took place at 08:05 UTC Tuesday and registered a whopping X6.9. The source was Sunspot 1263 which is nearing the Western Limb. Because of its location, any large explosions may not be fully earth directed. When watching video images from the STEREO website, it appears the CME (although bright), is less intense than the one caused by the M9.3 flare from last week. A minor S1 Radiation Storm resulted soon after the blast. The latest Lasco C2 movie shows the Coronal Mass Ejection caused by the X6.9 Solar Flare and it looks like a majority of the blast is not earth directed. At the same time you can also see Protons racing past the onboard satellite camera.

Two M-Class Flares : A second M-Class flare, this time a M2.5 took place at 03:54 UTC Tuesday morning around Sunspot 1263. This is in addition to the earlier M3.5 flare which I reported on Monday afternoon. The first flare produced a small, but fast moving (2010 km/s) Coronal Mass Ejection (CME). Because of the location of Sunspot 1263 near the western limb, it does not appear that these flares will impact earth.

M2.5 Solar Flare (Early Tuesday)

Sunspot 1263 (Early Tuesday) - SDO


				:Solar_Region_Summary: 2011 Aug 08
# Region   Location         Sunspot Characteristics
#           Helio                      Spot  Spot  Mag.
# Num   Lat.,CMD  Long.  Area  Extent  class count class
 1263    N18W68    298    450    14     EKC   13    BGD
 1266    N18W12    242     50     6     DSI   20      B
 1267    S17W14    243     10     7     BXO    5      B
 1268    N20E04    225      0     3     AXX    2      A
		
A - Alpha (single polarity spot).
B - Beta (bipolar spot configuration).
G - Gamma (atypical mixture of polarities).
BG - Beta-Gamma (mixture of polarities in a dominantly bipolar configuration).
D - Delta (opposite polarity umbrae within single penumbra).
BD - Beta with a Delta configuration.
BGD - Beta-Gamma with a Delta configuration.

[Latest Sunspot Summary]


						
								Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.

Updated 2011 Aug 09 2200 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 221 Issued at 2200Z on 09 Aug 2011

IA.  Analysis of Solar Active Regions and Activity from  08/2100Z
to 09/2100Z:  Solar activity was high.  Region 1263 (N17W83) produced
an X6/2b flare at 09/0805Z, the largest x-ray event so far in Cycle
24.  This flare was accompanied by multi-frequency radio emissions,
including a Tenflare (710sfu), and Type II (1551 km/s) and IV
signatures. A full halo CME was subsequently observed in LASCO C3
imagery at 09/0906Z.  Initial plane-of-sky speed was estimated to be
about 1000 km/s.  Earlier in the period, a CME was observed in LASCO
C3 imagery at 0406Z.  This event was attributed to an M2/1b flare
from Region 1263 at 09/03435Z.  While the area of Region 1263
diminished over the last 24 hours, the longitudinal extent expanded,
and the region ended the period as an Ehc type spot group with a
beta-gamma-delta magnetic configuration.

IB.  Solar Activity Forecast:  Solar activity is likely to be low to
moderate.  A slight chance for an isolated X-class flare, and/or
proton event, remains for Day 1 (10 August). Event probabilities are
expected to gradually decrease as Region 1263 rotates around the
west limb.

IIA.  Geophysical Activity Summary 08/2100Z to 09/2100Z:
The geomagnetic field was quiet to unsettled through the period under
the continued influence of a coronal hole high speed stream.  Solar
wind speed at the ACE spacecraft was approximately 600 km/s for most
of the period.  The Bz component of the interplanetary magnetic
field was predominantly near zero. The greater than 100 MeV protons
crossed the 1 pfu event threshold at 09/0825Z, reached a maximum of
2 pfu at 09/0855Z, and ended at 09/1045Z.  The greater than 10 MeV
protons crossed the 10 pfu event threshold at 09/0845Z, reached a
maximum of 26 pfu at 09/1210Z, and ended at 09/1715Z. The greater
than 2 MeV electron flux at geosynchronous orbit reached high levels
during the period.

IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be predominantly quiet to unsettled for the next three
days (10-12 August).  Unsettled conditions are expected on Day 1 (10
August) as a weak remnant of the 08 August CME arrives.  Currently,
a return to mostly quiet conditions is expected on Days 2 and 3
(11-12 August).  Analysis of the 09/0906Z CME is presently underway
to determine its potential geoeffectiveness.

III.  Event Probabilities 10 Aug-12 Aug
Class M    60/40/20
Class X    10/10/05
Proton     99/60/10
PCAF       Yellow





[Latest and Full Report]

				










Below is a link to very interesting data, charts and graphics from presentation at the Cycle 24 conference in Napa, California in December 2008. Thanks Paul VE1DX for the information.

"Based on minimum in August of 2008, A large cycle (sunspot number of ~135) would then peak in 2012 while a small cycle (sunspot number ~ 75) would peak in 2013."

http://sprg.ssl.berkeley.edu/RHESSI/napa2008/talks/MonI_Hathaway.pdf


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28.06 | 12:56

Tack för qso 2014-06-28 på 3695 kc. Det var mitt första qso på kortvåg, ber om ursäkt för en något valhänt hantering av micken. 73 de SA4CMF.

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10.11 | 17:03

Hei Per Dagfinn.
Har et spørsmål : Har dere noe ferdig pensum som dere bruker til amatørkurset. Vi har tenkt å få igang et kurs her i Gudbrandsdalen.

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12.10 | 00:25

Hi Willem,
VHF repeater: 145750 kHz
11 m: 27395 FM ?? maybe
60 m: 5380 kHz USB
80 m : 3702 kHz +/-

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07.06 | 03:20

Var bare inne å titte Per-Dagfinn 73 fra Moss de LA1YKA

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