Helicopters over Diamond Bar

Private and charter helicopters over Diamond Bar

364 of 656 recorded passes over Diamond Bar were private and charter helicopters — 55% of the traffic here, 9.6 hours overhead in total.

typically 1,600–2,000 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 Diamond Bar

65 of 656 recorded passes over Diamond Bar were sheriff's helicopters — 10% of the traffic here, 2.2 hours overhead in total.

Most often: LASD (N956LA), 7 recorded passestypically 1,350–1,550 ft

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

Police helicopters over Diamond Bar

65 of 656 recorded passes over Diamond Bar were police helicopters — 10% of the traffic here, 2.6 hours overhead in total.

Most often: Ontario PD (N30NT), 4 recorded passesusually 12pm–3pmtypically 1,550–1,800 ft

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

News helicopters over Diamond Bar

58 of 656 recorded passes over Diamond Bar were news helicopters — 9% of the traffic here, 3 hours overhead in total.

Most often: SkyCAL / SkyFOX 11 (N39CL), 5 recorded passesusually 5am–8amtypically 1,800–2,100 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.

Is that a sheriff's helicopter over Diamond Bar?

Sheriff's helicopters account for 10% of the 656 helicopter passes recorded over Diamond Bar. The one you see most is LASD (N956LA), 7 recorded passes. They typically fly at 1,350–1,550 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.

Why is a police helicopter circling over Diamond Bar?

Police helicopters account for 10% of the 656 helicopter passes recorded over Diamond Bar. The one you see most is Ontario PD (N30NT), 4 recorded passes. They are usually 12pm–3pm here. They typically fly at 1,550–1,800 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 news helicopter over Diamond Bar?

News helicopters account for 9% of the 656 helicopter passes recorded over Diamond Bar. The one you see most is SkyCAL / SkyFOX 11 (N39CL), 5 recorded passes. They are usually 5am–8am here. They typically fly at 1,800–2,100 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 Diamond Bar?

From the passes recorded here: private and charter helicopters at 1,600–2,000 ft; sheriff's helicopters at 1,350–1,550 ft; police helicopters at 1,550–1,800 ft; news helicopters at 1,800–2,100 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 Diamond Bar?

Most passes are brief — a minute or two straight through. The aircraft that stay longest here are private and charter helicopters: 9.6 hours overhead across 364 recorded passes. Private and charter aircraft are usually in transit, on a tour or a survey flight, and pass through without stopping.

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 Live 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.