Grassland Square Emergency Heliport
Daylight today(Aug 30, 2026, local time)
About 13h 2m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.
About Grassland Square Emergency Heliport
Grassland Square Emergency Heliport is a heliport in Koto, Tokyo, Japan. It observes Asia/Tokyo local time. The nearest airport is Tokyo Haneda International Airport (HND), about 5 nm to the s.
Summary generated from this airport’s structured data — reference only.
Live traffic nearby
Aircraft currently within ~40 nm, from live ADS-B. Positions are approximately real-time — not for navigation.
Live ADS-B by adsb.lol & the OpenSky Network. Not for navigation.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (0)
No runway data recorded for this airport.
Airspace in this area(6)
| Name | Class | Type | Floor | Ceiling |
|---|---|---|---|---|
| TOKYO INTL PCA-1 | Class C | Controlled | 3000 ft MSL | 4000 ft MSL |
| TOKYO INTL PCA-2 | Class C | Controlled | 700 ft MSL | 4000 ft MSL |
| TOKYO-HANEDA CTR | Class D | CTR | GND | 3000 ft MSL |
| TOKYO ACA-3 | Class E | Controlled | 700 ft MSL | FL240 |
| TOKYO TCA-30 | Class E | Controlled | 2500 ft MSL | 10000 ft MSL |
| TOKYO TCA-27 | Class E | Controlled | 4000 ft MSL | 10000 ft MSL |
Approximate bounding-box match from OpenAIP · all Japan airspace. Reference only — consult official charts for exact boundaries and status.
Tall obstacles nearby
| Obstacle | Height AGL | Top (MSL) | Lit |
|---|---|---|---|
| 東京スカイツリー | 2,080 ft | 36 ft | — |
| 東京タワー | 1,093 ft | 148 ft | — |
| ミッドタウンタワー | 814 ft | 95 ft | — |
| 六本木ヒルズ森タワー | 781 ft | 148 ft | — |
| 渋谷スクランブルスクエア | 755 ft | 72 ft | — |
| 新宿パークタワー | 745 ft | 128 ft | — |
| 聖路加タワー | 722 ft | 59 ft | — |
| 汐留シティセンター | 709 ft | 33 ft | — |
Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.
Nearby airports
Great-circle distance and true bearing from Grassland Square Emergency Heliport.
Frequently asked questions
Where is Grassland Square Emergency Heliport located?
Grassland Square Emergency Heliport is heliport located in Koto, Tokyo, Japan.
What time zone is Grassland Square Emergency Heliport in?
Grassland Square Emergency Heliport is in the Asia/Tokyo time zone (UTC+09:00).
What is the magnetic variation at Grassland Square Emergency Heliport?
The magnetic variation (declination) at Grassland Square Emergency Heliport is approximately 7.9° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Grassland Square Emergency Heliport?
The nearest airport to Grassland Square Emergency Heliport is Tokyo Haneda International Airport (HND), about 5 nm to the s, followed by Urayasu Emergency Runway and Iwabuchi Watergate Auxiliary Airfield.
Is the information on this page suitable for flight planning?
No. Grassland Square Emergency Heliport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.