Helicopters over Westmont

Police helicopters over Westmont

138 of 484 recorded passes over Westmont were police helicopters — 29% of the traffic here, 13.5 hours overhead in total.

Most often: LAPD (N472LA), 9 recorded passesusually 1am–4amtypically 400–600 ft

Police aircraft typically fly tight, repeated orbits over one spot to support officers on the ground, and can hold for a long time.

Private and charter helicopters over Westmont

124 of 484 recorded passes over Westmont were private and charter helicopters — 26% of the traffic here, 5 hours overhead in total.

Most often: Prestige Air (N109HN), 14 recorded passestypically 200–600 ft

Private and charter aircraft are usually in transit, on a tour or a survey flight, and pass through without stopping.

Sheriff's helicopters over Westmont

121 of 484 recorded passes over Westmont were sheriff's helicopters — 25% of the traffic here, 7 hours overhead in total.

Most often: LASD (N956LA), 15 recorded passesusually 12am–3amtypically 500–800 ft

Sheriff's aircraft fly patrol, search and rescue across the county, and orbit a scene the same way police aircraft do.

News helicopters over Westmont

92 of 484 recorded passes over Westmont were news helicopters — 19% of the traffic here, 4.8 hours overhead in total.

Most often: AIR7 (N71HD), 20 recorded passestypically 800–1,150 ft

News helicopters hold a wider circle at a higher altitude and arrive after a story is already underway; several at once usually means something is being covered live.

Why is a police helicopter circling over Westmont?

Police helicopters account for 29% of the 484 helicopter passes recorded over Westmont. The one you see most is LAPD (N472LA), 9 recorded passes. They are usually 1am–4am here. They typically fly at 400–600 ft above sea level. Police aircraft typically fly tight, repeated orbits over one spot to support officers on the ground, and can hold for a long time.

Is that a sheriff's helicopter over Westmont?

Sheriff's helicopters account for 25% of the 484 helicopter passes recorded over Westmont. The one you see most is LASD (N956LA), 15 recorded passes. They are usually 12am–3am here. They typically fly at 500–800 ft above sea level. Sheriff's aircraft fly patrol, search and rescue across the county, and orbit a scene the same way police aircraft do.

Is that a news helicopter over Westmont?

News helicopters account for 19% of the 484 helicopter passes recorded over Westmont. The one you see most is AIR7 (N71HD), 20 recorded passes. They typically fly at 800–1,150 ft above sea level. News helicopters hold a wider circle at a higher altitude and arrive after a story is already underway; several at once usually means something is being covered live.

How high do helicopters fly over Westmont?

From the passes recorded here: police helicopters at 400–600 ft; private and charter helicopters at 200–600 ft; sheriff's helicopters at 500–800 ft; news helicopters at 800–1,150 ft. These are the middle half of measured altitudes above sea level for each group, not a floor or a ceiling.

How long do helicopters stay over Westmont?

Most passes are brief — a minute or two straight through. The aircraft that stay longest here are police helicopters: 13.5 hours overhead across 138 recorded passes. Police aircraft typically fly tight, repeated orbits over one spot to support officers on the ground, and can hold for a long time.

How can I tell if it's police or a news helicopter?

Police aircraft usually fly tight, repeated orbits over one spot and often stay for a long time. News helicopters tend to hold a wider circle at a higher altitude and arrive after an incident is already underway. This page labels each aircraft by its operator, so you don't have to guess.

Where does this data come from?

GTLA AirWatch tracks public ADS-B and MLAT broadcasts that aircraft transmit about their own position, the same open data used by air-traffic enthusiasts worldwide. It is updated every few seconds.