Date: Tue, 23 Apr 2002 07:29:53 -0600 (MDT)
Subject: Sac Peak ASP Target (23-Apr-2002)

Hello,

This is our last mail from Sac Peak. We finish this ASP observation
on Apr 23 at 18:00 UT. We have monitored the active region evolution 
of NOAA 9912 in these several days. This region is still gradually 
growing, and we are sorry that we cannot follow NOAA 9912 until the 
region goes beyond the west limb.

The position of NOAA 9912 on 23-Apr-2002 12:00 UT is:

N10W32, (499",234") 

Thank you very much for your cooperation!

Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Mon, 22 Apr 2002 07:27:36 -0600 (MDT)
Subject: Sac Peak ASP Target (22-Apr-2002)

Hello,

We at Sac Peak are now tracking an active region evolution
of NOAA 9912. New magnetic flux emergence seemed to occur
on Apr 21(UT) in the middle area of the region, and this 
caused significant growth of pre-existing spots. 
We will observe this region all through our last observing 
run.

The position of NOAA 9912 on 22-Apr-2002 11:00 UT is:

N10W19, (307",243") 


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Sun, 21 Apr 2002 22:29:49 +0900
Subject: Sac Peak ASP Target (21-Apr-2002)

Hello,

We at Sac Peak are now tracking the evolution of an active
region NOAA 9912. This region maintains compact but strong
bipolar structure. On Apr 20, some C-class events occurred
in this region.

The position of NOAA 9912 on 21-Apr-2002 11:00 UT is:

N10W05, (82",249")


Yukio Katsukawa,
Masahito Kubo,
and Yasushi Sakamoto
@ Sac Peak Observatory 


Date: Sat, 20 Apr 2002 09:01:06 -0600 (MDT)
Subject: Sac Peak ASP Target (20-Apr-2002)

Hello,

Our target of this weekend is an active region NOAA9912. 
This region is now formed to compact but strong bipole 
structure. Many spots can be seen in both polarity area.

The position of NOAA 9912 on 20-Apr-2002 13:00 UT is:

N09E07, (-115",234") 


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Fri, 19 Apr 2002 08:20:39 -0600 (MDT)
Subject: Sac Peak ASP Target (19-Apr-2002)

Hello,

We at Sac Peak have been monitoring the evolution of an active
region NOAA 9907. On Apr. 18(UT) small new flux emergence occurred
around a leading spot. This emergence caused C-class events. This 
NOAA 9907 seems to be gradually decaying, so we would like to change 
our main target to NOAA 9912 from Apr. 20(UT). This region is newly 
formed active region.  We will track evolution of NOAA 9912 over this 
weekend.

The position of NOAA 9912 on 19-Apr-2002 12:00 UT is:

N11E21, (-337",262")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Thu, 18 Apr 2002 08:08:19 -0600 (MDT)
Subject: Sac Peak ASP Target (18-Apr-2002)

Hello,

We at Sac Peak are now monitoring the long-time evolution of 
the active region NOAA 9907. This region seems to be gradually
decaying. Following spots of plus polarity have spread over.
But there is mixed-polarity region in the central part, and
some magnetic activity is expected in this region.

The position of NOAA 9907 on 18-Apr-2002 13:00 UT is:

S03W15, (248",36")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Wed, 17 Apr 2002 07:41:17 -0600 (MDT)
Subject: Sac Peak ASP Target (17-Apr-2002)

Hello,

We at Sac Peak are now monitoring the evolution of an active
region NOAA9907. This region seems to be gradually decaying. 
Following spots are going away from leading spots.  If we have 
a chance, we would like to observe NOAA9906 in addition to 
NOAA9907. M-class events are expected in this region. 
But, our main target is still NOAA9907.

The position of NOAA 9907 on 17-Apr-2002 13:00 UT is:

S03W01, (16",40")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Tue, 16 Apr 2002 07:23:04 -0600 (MDT)
Subject: Sac Peak ASP Target (16-Apr-2002)

Hello,

It is very fine in this morning at Sac Peak. Our target is an 
active region NOAA 9907, and we will track this region for 
a few days. The magnetic configuration of this region seems 
to be unchanged since yesterday.

The position of NOAA 9907 on 16-Apr-2002 08:00 UT is:

S04E16, (-264",21")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Mon, 15 Apr 2002 07:19:19 -0600 (MDT)
Subject: Sac Peak ASP Target (15-Apr-2002)

Hello,

We at Sac Peak have tracked the active region NOAA 9899. Now this
region goes to the west limb. We still observe NOAA 9899 today,
but we will change our target from Apr 16. Our next target is
NOAA 9907. Some C-class flares are continuously occurring in 
this region.

The position of NOAA 9899 on 15-Apr-2002 10:00 UT is:

N19W38, (558",380")


The position of NOAA 9907 on 15-Apr-2002 10:00 UT is:

S04E27, (-434",16")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Sun, 14 Apr 2002 07:26:06 -0600 (MDT)
Subject: Sac Peak ASP Target (14-Apr-2002)

Hello,

Our target of this weekend is still NOAA 9899. We will track this
active region until Moday. A big leading sunspot of plus polarity 
is intermittently fragmenting. A dark filament can be seen on the
east side of the leading spot in H alpha images. Southern plus 
porality region becomes smaller.

The position of NOAA 9899 on 14-Apr-2002 12:00 UT is:

N18W26, (400",376")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Sat, 13 Apr 2002 07:22:58 -0600 (MDT)
Subject: Sac Peak ASP Target (13-Apr-2002)

Hello,

Our target of this weekend is still NOAA 9899. A leading sunspot 
of plus polarity is still very large, but we can see small 
fragmenation of the spot yesterday. We can also see dark filaments
surrounding the big spot in H alpha images. Configurations of small 
satellite spots of minus polarity seem to be unchanged.

The position of NOAA 9899 on 13-Apr-2002 11:00 UT is:

N17W10, (159",370")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Fri, 12 Apr 2002 07:13:55 -0600 (MDT)
Subject: Sac Peak ASP Target (12-Apr-2002)

Hello,

We at Sac Peak are now tracking the active region NOAA 9899,
and will continue to observe this region for this weekend.
Satellite spots of minus polarity are rapidly moving in an 
eastward direction. We can also see dark filaments surrounding 
the big spot in H alpha images.

The position of NOAA 9899 on 12-Apr-2002 12:00 UT is:

N18E02, (-31", 388")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Thu, 11 Apr 2002 07:22:12 -0600 (MDT)
Subject: Sac Peak ASP Target (11-Apr-2002)

Hello,

The setup of ASP @ Sac Peak is now completed. From this morning (about 
14:00UT), we can start our observations. Our target is still the active 
region NOAA 9899. This region has a strong sunspot of plus polarity 
and small satellite spots of minus polarity around the plus polarity. 
In this region, M1.6 class flare occurred on 10-Apr-2002 18:48 UT.

The position of NOAA 9899 on 11-Apr-2002 12:00 UT is:

N18E15, (-236", 386")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Wed, 10 Apr 2002 07:31:00 -0600 (MDT)
Subject: Sac Peak ASP Target (10-Apr-2002)

Hello,

The instrument setup of ASP @ Sac Peak is still under going now. Some 
instrument problems have delayed our setup, but it will be completed 
today. When the setup is finished, we would like to follow the 
active region NOAA9899 that is the same region as in the yesterday's
mail. On 9-Apr-2002, two M-class flares occurred in this region at 
0:38UT and 12:54UT. And some C-class flares are continuously occurring
too. 

The position of NOAA 9899 on 10-Apr-2002 13:00 UT is:

N18E25, (-386", 381")

Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Tue, 9 Apr 2002 07:27:48 -0600 (MDT)
Subject: Sac Peak ASP Target (9-Apr-2002)

Hello,

We are sorry, but we forgetted to introduce ourself in the yesterday's
mail. We at Sac Peak (Katsukawa, Kubo, and Sakamoto) will track an active
region evolution with ASP instrument. Our target will be informed every day 
by us instead of Shimizu-san for you. We appreciate if you observe the 
same active region.

We started setting up of the ASP instrument from yesterday, and it will
be completed by today's evening. When setting up is completed, we would
like to follow the active region NOAA 9899 which is the same region as
in the yesterday's mail. M2.1-class flare occured at 0:38UT in this 
region, and this region is certainly evolving.

The position of NOAA 9899 on 9-Apr-2002 12:00 UT is:

N18E39, (-575", 370")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory


Date: Mon, 8 Apr 2002 08:05:57 -0600 (MDT)
Subject: Sac Peak Target (8-Apr-2002)


Hello,

We have arrived at Sac Peak today. We at Sac Peak would like to 
follow an active region NOAA 9899 for tomorrow and hopefully for 
the next a few days.  In this region, a C9.6 class flare occured 
at 2:20UT yesterday and some C-class events also occured after the 
event. This active region is still near the limb, but it is 
moving to the disk center soon. We expect that the region evolves 
as the region get closer to the disk center.

The position of NOAA 9899 on 8-Apr-2002 13:00 UT is:

N18E51, (-710", 356")


Yukio Katsukawa,
Masahito Kubo, 
and Yasushi Sakamoto
@ Sac Peak Observatory