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Sky Lens
Belgium Airspace Intelligence
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Observation Query
Date & Time (local)
Observer location
📍 Click map to set location
Conditions
☀ Day
🌙 Night
Radius (km)
Min satellite elevation (°)
▶ Refine observation details (optional)
Direction you looked
N
NE
E
SE
S
SW
W
NW
Sky position (elevation)
Horizon
Low
Medium
High
Overhead
Exact (°):
cone ±
°
Movement
Stationary
Slow
Fast
Erratic/hovering
Moved FROM
N
NE
E
SE
S
SW
W
NW
TO
N
NE
E
SE
S
SW
W
NW
Duration
< 5 s
5–30 s
1–5 min
> 5 min
Number of lights
1
2
3–4
5+
Colours seen
Light behaviour
Steady
Slow flash
Strobe
Multiple
Sound
Silent
Hum/buzz
Moderate
Loud
Pulsing
Search
✕ Clear
Enter a date/time and click Search
Live Status
—
aircraft tracked
Last update:
—
Collector:
—
Satellites loaded:
—
Altitude legend
0 – 5,000 ft
5,001 – 10,000 ft
10,001 – 20,000 ft
20,001 – 30,000 ft
30,001 – 40,000 ft
40,001 – 50,000 ft
50,001+ ft
Satellite
Info
Night visibility:
· Aircraft strobes ~40 km · Landing lights ~80 km
· Satellites: sunlit only · Contrails ~150 km
Day visibility:
· Aircraft body ~10–15 km · Contrails ~150 km
Tips:
· Sound delay: ~3 s per km
· ISS = most commonly misidentified
· Stationary bright = Venus/Jupiter/star
· Flashing ~1 s = aircraft strobe
· Steady red+green = nav lights
· Smooth steady = satellite
Data Manager:
Open Data Manager ↗
🔒 Data Manager — admin only
LIVE
⏮ First
▶ Play
Slow
Normal
Fast
Very fast
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Data: —
Jump to UTC:
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Map Layers
Aircraft
Tracks
Satellites
☁ Precip
Class G
✈ VFR Fields
Drone Zones
RC Fields
Airspace
⛔ Restricted GND–195m
✓ Drone free
RC Airspace
Airports
Obstacles
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