MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Target region continues to decay quietly. We'll switch to
the new region rotating over the southeast limb. The new
target region has bright plage and is displaying minor surging.
It is too close to the limb to ascertain its magnetic configuration.
C-class events possible in the next 24 hour period.
The position of the target region on April 28 at 05:00 UT is:
S23E80 (Solar X = -865", Solar Y = -360")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
NOAA 1465, continues to slowly decay but remains
the most interesting region on the visible solar disk.
1465 produced a C2.4 event at 04/27/11:02 UT.
The largest x-ray event of the period was an unexpected
M1.1 event at 04/27/08:24 UT. Its source region was
NOAA 1466 (N12W33). C-class events possible with
a slight chance of an isolated M-class event in the next
24 hours.
The position of NOAA 1465 on April 27 at 11:00 UT is:
S18W45 (Solar X = 642", Solar Y = -244")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
NOAA 1465 is slowly and quietly decaying but is still the most
interesting region on the visible solar disk. C-class events
possible with a slight chance of an isolated M-class event in
the next 24 hour period.
The position of NOAA 1465 on April 26 at 13:00 UT is:
S17W34 (Solar X = 511, Solar Y = -218")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
NOAA 1465 is mostly unchanged maintaining an interesting
"self-contained" sunspot group. Most of the region's umbrae
are within a common penumbra but it is not a complex magnetic
delta configuration because the opposite polarity umbrae are
not within a distance of 1 heliographic degree. C-class events
probable with a chance of an isolated M-class event in the
next 24 hour period.
The position of NOAA 1465 on April 25 at 13:00 UT is:
S19W20 (Solar X = 309", Solar Y = -241")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
NOAA 1465 increased its penumbral area. 1465 is a
"self-contained" region with almost all umbrae within
a single large penumba but the opposite polarities are
too far apart to qualify as a complex magnetic delta
configuration. C-class events expected with a chance
of an isolated M-class event in the next 24 hour period.
The position of NOAA 1465 on April 24 at 11:00 UT is:
S18W07 (Solar X = 110", Solar Y = -219")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
NOAA 1465 developed significantly since the last message.
1465 added sunspot count, sunspot area, and magnetic complexity.
The region is currently classified D-type/beta-gamma-delta.
The target will switch from NOAA 1459 (S15W34) to 1465 today.
C-class events certain with a good chance of an M-class event
within the next 24 hour period.
The position of NOAA 1465 on April 23 at 13:00 UT is:
S18E06 (Solar X = -095", Solar Y = -218")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Target region NOAA 1459 is mostly unchanged. It was the source
of two minor C-class events since the last message. NOAA 1465
also produced a C-class event. C-class events probable in the
next 24 hours.
The position of NOAA 1459 on April 22 at 13:00 UT is:
S15W21 (Solar X = 331", Solar Y = -172")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Target EFR, NOAA 1465, was the source of 6 C-class events
since the last message. It has now stabilized with a beta magnetic
configuration. We'll switch the target to NOAA 1459, S16W08.
1459 has added a few more spots and increased its magnetic complexity
to beta-gamma. C-class events are possible with a slight chance of an
isolated M-class event in the next 24 hour period. In addition to 1459,
NOAA regions 1460,1462,1463, and 1465 have the potential to
produce C-class events with a slight chance of an isolated
M-class event.
The position of NOAA 1459 on April 21 at 15:00 UT is:
S16W08 (Solar X = 128", Solar Y = -183")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The target region will switch today to a strong EFR located in the
southeast. Former target region, NOAA 1463, is maintaining
a weak beta-gamma magnetic configuration but continues
in decay phase. The target region could produce C-class
activity in the next 24 hour period. Several other NOAA
regions (1459,1460,1462 and 1463) on the visible disk
also have the potential to produce C-class events.
The position of the EFR target on April 20 at 13:00 UT is:
S17E47 (Solar X = -670", Solar Y = -223")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The target EFR, now numbered NOAA 1463, produced C-class activity
in the past 24 hour period. 1463 is now in decay phase but
has retained minor mixed polarities. Additional C-class events
possible in the next 24 hours. NOAA regions 1459, S16E20, and
1460, N16E04 also have the potential to produce C-class events.
The position of NOAA 1463 0n April 19 at 13:00 UT is:
S26W44 (Solar X = 597", Solar Y = -361")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)