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DELTA-V
Launch status: TBDSpX

Falcon 9 Block 5 | CHORUS

SpaceX launches Falcon 9 Block 5 carrying CHORUS from Unknown Pad, Cape Canaveral SFS, FL, USA at 2026-12-31 00:00:00Z. The operator has not published how precise that target time is. The date is still provisional and can move.

COUNTDOWN

TBD
NASA’s SpaceX Crew-9 members stand in front of a Falcon 9 first-stage booster
Falcon 9 Block 5 — library photograph, not this flightNASA / JSC · public domainNASA
TIME TO T-0
T-··:··:··
NET (UTC)2026-12-31 00:00:00Z
WINDOWINSTANTANEOUS

FLIGHT PLAN

FILED
OPERATORSpaceX
VEHICLEFalcon 9 Block 5
PAYLOADCHORUS
MISSION TYPEEarth Science
TARGET ORBITLEO
VEHICLE FAMILYFalcon
PADUnknown Pad
SITECape Canaveral SFS, FL, USA
WINDOW OPEN2026-12-31 00:00:00Z
WINDOW CLOSE2026-12-31 00:00:00Z
NET PRECISIONQ4
REUSABLEYES

The window is instantaneous: the vehicle flies at T-0 or stands down to the next opportunity. Current date is a placeholder or rough estimation based on unreliable or interpreted sources.

FIELD KIT / OPTICS

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MISSION BRIEF

FILED

CHORUS is MDA's next generation Earth observation constellation, consisting of 2 radar satellites (C-band SAR and X-band SAR), in a 53.5 degree 600 km altitude LEO, with the X-band trailing the C-band by 60 minutes. A collaborative multi-sensor constellation, CHORUS will bring together diverse and unique imagery and data sources and provide a new level of near real-time insight and innovative Earth observation services. Operating in a unique mid-inclination orbit, CHORUS will be able to image day or night, regardless of weather conditions, with daily access of up to 95% of the coverage area. From an industry-leading 700km-wide imaging swath down to sub-metre high resolution, CHORUS will provide the most extensive and unrivalled Earth observation radar imaging capacity available on the market in a single mission.

SOURCE: LAUNCH LIBRARY 2 // THE SPACE DEVS

LAUNCH CORRIDOR

FROM THIS PAD
Due east
The lowest orbit inclination a direct launch from here can reach — 28.5°, which is this pad’s own latitude. It also collects the most free speed from Earth’s rotation.
Due south
The polar and sun-synchronous corridor: 90° inclination, passing over both poles. It gets no help from Earth’s spin, which is why it costs more payload.

Drag the globe to turn it. The shading is the real terminator, and it moves.

A globe of the Earth centred on Unknown Pad at latitude 28.46 degrees north, longitude 80.53 degrees west. Two curved lines leave the pad. The solid gold line runs due east and marks the lowest orbital inclination a direct launch from this site can reach, 28.5 degrees, equal to the pad’s latitude of 28.5 degrees. The dashed cyan line runs due south and marks the polar corridor at 90 degrees inclination. The darkened part of the globe is the night side. Surface wind is blowing from 77°, at 3 km/h, shown as the cyan arrow at the pad.

LAUNCH SITE

FIXED
PAD DESIGNATION

Unknown Pad

Cape Canaveral SFS, FL, USA, United States of America

LATITUDE28°27′29″ N28.4580°
LONGITUDE80°31′41″ W-80.5280°
90°N90°SEQUATORWIND FROM ENE · 3 km/h
180°W0° MERIDIAN180°E
PAD±28° BANDWIND (DOWNWIND)
ON SITE NOWWIND FROM ENE · 3 km/hPARTLY CLOUDY24.9 °CCLOUD 59%

OBSERVED 2026-08-28 02:15:00Z // OPEN-METEO (CC BY 4.0) // GENERAL CONDITIONS, NOT LAUNCH CRITERIA

Minimum direct inclination 28°. From 28° north of the equator, a direct ascent cannot enter an orbit inclined less than 28°, because an orbit of inclination i never passes over latitudes beyond ±i. Reaching an equatorial plane — what a geostationary transfer ultimately needs — therefore costs a plane change of 28° somewhere in the flight, while inclinations of 28° and above are available straight off the pad. The ground here is carried eastward at about 409 m/s (465 m/s at the equator, falling with the cosine of latitude), and a due-east launch keeps that head start.

DATUM WGS-84 // EQUIRECTANGULAR PROJECTION // ORBIT FIGURES DERIVED FROM THE PUBLISHED LATITUDE

Site map of Unknown Pad, Cape Canaveral SFS, FL, USA, United States of America.
SITE PLAN // SOURCE: LAUNCH LIBRARY 2

PAD CONDITIONS

OBSERVED

SURFACE WIND @ 10 M

3km/h

Blowing from the east-north-east, bearing 77 degrees

GUSTING

6km/h

Partly cloudy

CLOUD COVER59%
WIND DIRENE · 77°
PRECIP NOW0.0 mm
PRECIP CHANCE14%
TEMP24.9 °C
HUMIDITY91%
OBSERVED2026-08-28 02:15:00Z
STATION FIX28.458°, -80.528°

SOURCE: OPEN-METEO CC BY 4.0

The observed block is general weather for the coordinates of Unknown Pad, not launch-commit criteria. Those are written per mission by the operator and the range, cover conditions this forecast does not carry at all (electric fields, cloud layers aloft, winds through the vehicle’s own load limits), and are published only by the operator. Wind is a common reason countdowns stop for weather — that is general context, not a rule about this flight, and no number in this block is a threshold. Nothing here is a go or no-go call, and no operator figure was published for this attempt.

COMMON QUESTIONS

ANSWERED

What time does Falcon 9 Block 5 · CHORUS launch?

SpaceX is targeting 2026-12-31 00:00:00Z for Falcon 9 Block 5 | CHORUS. The operator has not published how precise that target time is. The window is instantaneous: the vehicle flies at T-0 or stands down to the next opportunity.

Where can I watch Falcon 9 Block 5 · CHORUS launch?

No official webcast has been published for Falcon 9 Block 5 | CHORUS yet. When SpaceX posts a feed it is linked from this page, and the live countdown here runs against the published T-0 in the meantime.

What is Falcon 9 Block 5 · CHORUS carrying?

CHORUS is MDA's next generation Earth observation constellation, consisting of 2 radar satellites (C-band SAR and X-band SAR), in a 53.5 degree 600 km altitude LEO, with the X-band trailing the C-band by 60 minutes.

Where does Falcon 9 Block 5 · CHORUS launch from?

Falcon 9 Block 5 | CHORUS lifts off from Unknown Pad, Cape Canaveral SFS, FL, USA, United States of America. The pad sits at 28.4580, -80.5280.