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)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The target of choice today will switch from NOAA 1461 to
a strong EFR located in the southwestern quadrant.
This EFR was the source of 4 C-class events today
The largest was a C8.9 at 04/18/12:39 UT.
C-class events expected with the chance of an M-class
event in the next 24 hour period.
The position of the target EFR on April 18 at 12:30 UT is:
S26W29 (Solar X = 418", Solar Y = -349")
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, now numbered NOAA 1461, was the source
of an M1.7 limb event at 04/16/17:40 UT. The event produced
a very impressive flare spray off the northeast limb.
The region also produced two C-class events. 1461 is
currently an unimpressive plage with an H-type/alpha
sunspot group. Additional C-class activity is possible in
the next 24 hour period.
The position of NOAA 1461 on April 17 at 03:30 UT is:
N12E75 (Solar X = -904", Solar Y = 221")
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)