Last updated on November 1, 2016

Tromsø UHF operation memorandum for experiments between October 30 and November 1, 2016 

Experiment name: SP_NI_PA1
PI: Keisuke Hosokawa (UEC)
Resources: NI(13)

(1) 2016:10:29 (Sat) 23 UT - 2016:10:30 (Sun) 03 UT (4 hours)
(2) 2016:10:30 (Sun) 23 UT - 2016:10:31 (Mon) 03 UT (4 hours)
(3) 2016:10:31 (Mon) 23 UT - 2016:11:01 (Tue) 04 UT (5 hours)

eroshost: 129.242.31.100  (t49851)
Pulse scheme: beata 
elan files: t45001:/kst/exp/beata/beata
scan pattern file (for UHF beata): /kst/exp/scans/kst/ni/icsom4_pattern.elan

Participants: Yasunobu Ogawa and Toru Takahashi

Before our experiment: Nothing
After our experiment: Nothing 
Other instruments.

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October 29, 2016 (Saturday)
(UHF)
22:40 run /kst/exp/ni/beata/beata 22:40 icsom4 NI
23:00:10 TX on (with 1.5 MW)
23:00:14 enablerecording
23:10 guisdap –a (on eiscat@ culebra)

October 30, 2016 (Sunday)
02:55 stopexp 02:59:50

Note: It was partially a clear sky and aurora was seen around 
the field aligned direction from 02:25 to 02:35 UT on October 30, 2016.

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 (UHF)
October 30, 2016 (Sunday)
22:38 run /kst/exp/ni/beata/beata 22:40 icsom4 NI
23:00:40 enablerecording
23:01:10 TX on (with 1.5 MW)
23:03 guisdap –a (on eiscat@culebra)
23:07:15 UHF Crowber. Tx recovered at 23:09:20.
23:10:00 UHF Crowber. Tx recovered at 23:13.

October 31, 2016 (Monday)
02:34 stopexp 02:59:50

Note: It was a clear sky and the E-region above Tromsø was actively 
ionized. Diffuse aurora appeared above EISCAT Tromsø site during 
this observation period. Patchy structures of diffuse aurora traveled 
into the FOV of UHF radar several times after 01:30 UT on October 31.

 
 
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(UHF)
October 31, 2016 (Monday)
22:25 Warming up by Arild (EISCAT staff)
22:33 run /kst/exp/ni/beata/beata 22:30 icsom4 NI
23:00:02 enablerecording
23:00:10 Tx on (with 1.5 MW)
23:01 guisdap –a (on eiscat@culebra)

November 1, 2016 (Tuesday)
03:41 stopexp 03:59:50

Note: It was clear sky and the ionization in the E region was active 
from 23:00 to 02:30 UT. Diffuse aurora and auroral arcs always appeared 
above EISCAT Tromsø site during this observation period. Pulsating 
Auroras were captured by all-sky camera after 01 UT and likely to be 
into the FOV of UHF radar beam. 

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