Advertisement
Table 1 Summary of instruments and observation sites for the NLC event on June 21, 2015
| Site name (abbreviation) | Location | Instruments (camera system) | Period of NLC detection HH:MM:SS in local standard time (LST = UT + 9 h) [shooting interval (min)] | Weather condition and remarks |
|---|---|---|---|---|
| Nayoro (NYR) | 44.37°N, 142.48°E | Nikon D90 +F#2.8/f = 15 mm | 02:23:07–02:38:07LST (5 min) | Clear. Most of the structure is hidden by a mountain |
| Moshiri (MSR) | 44.37°N, 142.27°E | Nikon D90 +F#2.8/f = 10 mm | 02:09:55–02:17:55LST (3 min) | Partly cloudy and foggy. Most of the structure is hidden by a mountain |
| Monbetsu (MON) | 44.34°N, 143.32°E | Nikon D300S +F#4/f = 12 mm | 02:00:13–02:45:13LST (15 min) | Clear |
| Rikubetsu (RIK) | 43.53°N, 143.61°E | Nikon D700 +F#2.8/f = 20 mm | 01:54:54–02:34:54LST (5 min) | Clear. Some images are saturated due to bright twilight sky |
| Otaru (OTR) | 43.17°N, 140.97°E | Canon EOS 7D +F#8/f = 35 mm | 02:14:**−02:40:**LST (Manual) | Clear. Data provided by Mr. Masamichi Shisa (photographer) |
