November 16-19, 2003

 

KST UHF operation memorandam for November BY S. Nozawa

@(Using Netscape might be in trouble on this page.)

Experiment name: tau2pl (CP2)

 

This SP (CP2) is a long-run experiment started just after a 5-day CP2 run to make an 8-day window data.@ Both mainland KST radar and ESR are operated.@ Four countries are involved such as Japan, Norway, Sweden and Germany.

 

elan files:tau2pl-elan (just use taul2pl series)

Pulse scheme: tau2pl

Start time: 15:00 UT on November 16, 2003

End time: 14:06 UT on November 19, 2003

(Time period from 09:00 UT to 14:06 UT on November 19 is just compensated for the gaps.)

Participants: Satonori Nozawa, Kazuhiro Adachi and Yuichiro Tanaka

(Yasunobu Ogawa is in charge for ESR operation)

 

Before our experiment: CP2 (from 9 UT on November 11)

After our experiment: Nothing

 

IMPORTANT NOTE:

From 12:24 UT on November 17 to the end of experiment (14:06 UT on November 19), we have ran cp2w due to a problem of the rails.

cp2w is modified cp2 scan file where the two eastward positions are mirrored around 180 deg.@ This is to avoid 160 deg azimuth where there is concrete broken under the rails and one of the wheels dips making noises in the antenna structure.

cp2w:@ (180.0, 90.0) -> (193.5, 64.0) -> (226.7, 61.6) -> (184.0, 77.1)

 

---------------------------------------------------------------------------

Note: (time in UT)

November 16

@@@@@ Raining.@ It has been very active in the ionosphere over a few days.

 

STILL CP

14:31@ 1188 kW@@ Somehing wrong with Sodankyla data (mike said),

@@@@@@@ but we are not sure.

14:54@ stop exp for sod and restart sodnakyla since there was a suspicious that no signal

@@@@@@ was received. After the restart the signal was much stronger.

 

15:00 @ START@ (only for Tromsoe: just let remote sites go)

15:02@ runexp tau2pl 1500 cp2 SP

@@@ @@eablerec

@@@@@ guisdap –a@ (<- analysis of data)

 

16:12@ 1159 W

17:09@ Signals at Sodankyla is weak..@ So, restarted the experiment at SOD.

@sod stopexp; sod runexp tau2pl 1000 cp2;sod enablerec

 

19:09@ Restarted sodankyla due to its weak signal.

@sod stopexp

19:12@ sod runexp tau2pl 1912 cp2;sod enablerec

 

23:39@ Restarted sodankyla due to its weak signal.

@sod stopexp

23:42@ sod runexp tau2pl 2342 cp2;sod enablerec

 

November 17

 

00:05@ guisdap –a:@@ restarted analysis

 

02:18@ High reflection power ?

02:20@ Recovered.

 

07:41@ HRP

07:42@ 1262 kW

 

08:02@ HRP

08:03@ 1154 kW

 

10:51@ HRP

10:52@ 1163 kW

@@@@@@ no signal

10:57@ 1115 kW

 

*** cp2w is modified cp2 scan file where the two eastward positions are mirrored around 180 deg.@ This is to avoid 160 deg azimuth where there is concrete broken under the rails and one of the wheels dips making noises in the antenna structure.@ At the same time HFLT677 plasma line option was started and at 12:27.@ The LO2 was changed from 122 to 124 MHz (for plasma measurements).

cp2w:@ (180.0, 90.0) -> (193.5, 64.0) -> (226.7, 61.6) -> (184.0, 77.1)

 

12:17@ stop experiment

12:24@ runexp tau2pl 1224 cp2w SP 292.9@ HRFT677

12:25@ enablerec

 

15:09@ HRP@ (interlock)

15:17@ recovered,@ 1120 kW

 

20:31@ HRP

20:33@ 1222 kW

 

22:58@ HRP

22:59@ 1272 kW

 

23:00@ HRP

23:02@ 1087 kW

23:11@ 1135 kW

 

November 18

00:00@ RECORDING STOP.@ SERIOUS.@ We had to restart EROS.

00:07@ enablerec (but did not work)

00:10@ stopexp

00:16@ runexp tau2pl 0018 cp2w SP 292.9 HFLT677

00:20@ stop exp.@ runexp tau2pl 0024 cp2w SP 292.9 HFLT677

00:24@ enablerec (but did not work)

00:27@ stopexp

 

00;35@ restarted EROS

00:38@ runexp tau2pl 0042 cp2w SP 292.9 HFLT677

00:43@ enablerec:@ RECOVERED.

 

 

00:50@ 1237 kW

 

01:03@ Found Sodankyla also stopped.

01:05@ sod runexp tau2pl 01:06 cp2w SP 292.9 HFLT677

01:06@ sod runexp tau2pl 01:12 cp2w SP

01:12@ sod enablerec

 

08:33@ HRP

08:37@ 1125 kW

09:13@ 1215 kW

13:57@ HRP

14:00@ 1013 kW

18:01@ HRP

18:01@ 1317 kW

 

CLEAR SKY!!@ High activity was going on.

Nice aurora!

 

20:58@ 1296 kW

22:01@ HRP

22:04@ 1278 kW

 

November 19

00:30@ HRP

00:31@ 1294 kW

00:33@ HRP

00:34@ 1260 kW

 

06:31@ HRP

06:32@ 1249 kW

 

09:00@ This experiment was supposed to be stopped, but Mike and Ingmar kindly gave us an offer that we can extend the experiment by 4-5 hours.

 

11:37@ stopexp:@ EISCAT people wanted to check the antenna problem.

11:54@ startexp tau2pl 1100 cp2w SP 292.9 HFLT677

 

14:06@ stopexp@ (all sites)