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Launch detail

Ariane 5 ECA | Intelsat 37e & BSAT-4a

Name: Ariane 5 ECA | Intelsat 37e & BSAT-4a
Start: 2017-09-29T21:47:00.000Z
End: 2017-09-29T22:25:00.000Z
Location: Ariane Launch Area 3

Arianespace • Ariane 5 ECA • Ariane Launch Area 3 (NA)

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SuccessROUTINE

Intelsat 37e & BSAT-4a

Arianespace • Ariane 5 ECA • LA-3

T- countdown

Intelsat 37e is a geostationary communications satellite for Intelsat, another one of the EpicNG series. It weighs about 6700 kg and is equipped with C-band, Ku-band and Ka-band transopnders. Intelsat 37e is a replacement for the Intelsat 901 spacecraft in the 18Â° W orbital slot, covering Europe, Africa, South America and North America. BSAT-4a is a geostationary communications satellite for the Japanese satellite operator B-SAT. Satellite is equipped with 24 Ku transponders and weighs about 3500 kg. It is to reside in 110Â° East orbital position, providing high-resolution direct television broadcasting to Japan.

Rocket profile

Ariane 5 ECA

Photo credit: ESA/CNES/Arianespace/Optique vidéo du CSG•License: ESA Standard Licence

Variant: ECA

Length: 57.7 m

Diameter: 5.4 m

Reusable: No

Manufacturer

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Ariane 5 ECA launches across time.

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Launch info

Provider

Arianespace

Vehicle

Ariane 5 ECA

Pad

Ariane Launch Area 3 (LA-3)

State

NET

2017-09-29T21:56:00+00:00

Window start

2017-09-29T21:47:00+00:00

Window end

2017-09-29T22:25:00+00:00

Orbit

Geostationary Transfer Orbit

Mission type

Communications

Launch site

Guiana Space Centre, French Guiana

Reusable

GTO capacity (kg)

10500

Pad satellite view

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Satellite preview

Ariane Launch Area 3

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Guiana Space Centre, French Guiana5.23900, -52.76800Provider map

Intelsat 37e & BSAT-4a

Rocket

Ariane 5 ECA

Manufacturer: ArianeGroup

Ariane 5 is a heavy-lift launch vehicle, part of the Ariane rocket family.

Maiden flight

2002-12-11

Launch mass (t)

780

Vehicle wiki

Links & sources

Watch coverageLive/Replay Pad satellite mapSatellite Rocket wikiReference VA239 - 09/29/2017Official Webcast Arianespace Vol VA239 / Intelsat 37e et BSAT-4a (VF)Official Webcast Flight VA239 – Intelsat 37e and BSAT-4a | Ariane 5 Launch | ArianespaceOfficial Webcast Ariane 5 orbits Intelsat 37e and BSAT-4a on Arianespace’s latest mission from the SpaceportOfficial Webcast

Service provider

Arianespace

Provider news

Commercial • FRA

Arianespace SA is a multinational company founded in 1980 as the world's first commercial launch service provider. It undertakes the production, operation, and marketing of the Ariane programme. Their vehicles launch exclusively from French Guiana in South America.

Objects from this launch

4 objects

SATCAT inventory for 2017-059

Last checked: 2026-03-10T18:11:00.805+00:00

Last success: 2026-03-10T18:11:00.805+00:00

Last non-empty: 2026-03-10T18:11:00.805+00:00

Latest snapshot: 2026-03-10T18:11:00.805+00:00

Snapshot hash: 5b96d32f205db208158e63b6083c6bfca630158e4e8443bfd6f764931c16ef0c

LL2 payloads: 0SATCAT payloads: 2Delta: +2RB: 1DEB: 1UNK: 0

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SATCAT payload objects

INTELSAT 37E (IS-37E)
2017-059ANORAD 42950PAYIntelsat (ITSO)Ops: +
Technical details
Orbit type: ORBOrbit center: EALaunch site: FRGUIPeriod: 1436.10 min
Inc: 0.0°
35778 km → 35795 km
BSAT-4A
2017-059BNORAD 42951PAYJapan (JPN)Ops: +
Technical details
Orbit type: ORBOrbit center: EALaunch site: FRGUIPeriod: 1436.08 min
Inc: 0.1°
35768 km → 35805 km

SATCAT non-payload objects

ARIANE 5 DEB [SYLDA]
2017-059DNORAD 42953DEBFrance (FR)Ops: D
Technical details
Orbit type: IMPOrbit center: EALaunch site: FRGUIPeriod: 95.14 min
Inc: 6.5°
117 km → 934 km
ARIANE 5 R/B
2017-059CNORAD 42952RBFrance (FR)
Technical details
Orbit type: ORBOrbit center: EALaunch site: FRGUIPeriod: 579.45 min
Inc: 6.2°
262 km → 33029 km

Change log

Launch update history

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Update 1

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Launch story

Mission stats

Provider, rocket, pad, and booster history tied to this launch.

2026 snapshot

Provider legacy

Arianespace

260

Lifetime launches

9 in 2026

Arianespace has 260 launches on record, with 9 in 2026.

Rocket track record

Ariane 5 ECA

Successful missions

0 in 2026

Ariane 5 ECA has 71 successful missions on record, with 0 in 2026.

Pad history

Ariane Launch Area 3

Pad launches

6 in 2026

Ariane Launch Area 3 has 96 launches from this pad on record, with 6 in 2026.

Rocket reliability

97% all time

2026: no completed missions yet

Pad turnaround

93d

Reported pad reuse cadence.

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