October 16, 2001

KST UHF  operation memorandam for October 16 BY S. Nozawa

Experiment name:  CP1LT  (normal cp1lt)

       Optical-IS simultaneous observation
       This SP will be for a simultaneous observation with a 
       multi-wavelengths fixed angle photometer that will be
       installed at Ramfjord in early October.

elan files: cp1lt.elan, cp1lk.elan, cp1ls.elan  (just use cp1lt series)
directory: /kst/exp/cp1lt (cp1lk , cp1ls )
Pulse scheme: cp1lt
Start time: 16:00 UT on October 16, 2001
End time: 01:51 UT on Ocotber 17, 2001
Participants:  Satonori Nozawa, Masaki Kono, and Kazuhiro Adachi


Before our experiment:  Nothing
After our experiment:  Nothing
VHF radar is being operated simultaneously (CP7 with 2.6 MW)

For test, cp1lt was runned since 15:30 LT and
continuted. (before this, tau2 was being tested and
its result is not satisfactory. So, I decided to run cp1lt
after discussions with Mike and Roger.

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Note: (time in UT)
October 16
16:00            START    (enablerec; kir enablerec; sod eneablerec)
                     800 kW 
16:08             800 kW
16:10:45             HRP

16:12            808 kW
16:50            782 kW
18:14                HRP
18:16           739 kW
18:17            821kW

18:49            HRP
18:50:50         448kW
18:52:30         615kW
19:10           700 kw
19:30           We can see a discrete auroral under conditions of clear sky and new-moon.

20:19    706 kW
22:13      728 kW
22:31      901 kw    (Tw engineers were shwithced at 22:00UT)
22:35     912 kW
23:00      HRP
23:01      911kW
23:16      HRP
23:18       766 kW


23:39     kir pointrheight 183.8, 77.1, 253.4   (from 292.9 km)  SNR 6-8%
23:39     sod pointrheight 183.8, 77.1, 253.4   (from 292.9 km) SNR 3-4 %

October 17

00:09     kir pointrheight 183.8, 77.1, 234.9
00:09    sod pointrheight 183.8, 77.1, 234.9
Became worse

00:10     kir pointrheight 183.8, 77.1, 253.4
00:10    sod pointrheight 183.8, 77.1, 253.4

Data at sodankyla looks something wrong.

00:16    sod setclockdelay
              then looks fine but still very low SNR (a few %)

01:10, 01:13, 01:19, 01:24  HRP
01:29   600 kW

01:32  HRP
01:33   540 kW

01:33, 0138, 01:43 HRP
01:46 500 kW
01:49  HRP
01:50  HRP

01:52   stop, END

CANCELED 1-hour.


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Summary:
Very low Tx power (500 - 800 kW).  
Clear sky in the beggining, but cloudy afterwards.

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