PERFORM

SERENA

Sequencer Ensuring Reliable and Enhanced Nominal Actuations

OVERVIEW

SERENA (Sequencer Ensuring Reliable and Enhanced Nominal Actuations) is a specialized deployment sequencer designed to manage critical spacecraft actuations and payload separation sequences. Capable of handling up to two separation signals for each payload, SERENA is built around a modular, dual-redundant architecture to ensure fail-safe execution while protecting system health across all mission phases. An integrated internal supervisor enables an ultra-low-power sleep mode (consuming just a few milliamperes) allowing the unit to remain safely dormant throughout platform integration, testing, and transit until activation.

QUICK SPECS
SERENA
ELECTRICAL
INTERFACE
BATTERY TYPE

Redundant Li-ion 8S1P packs with independent charging and temperature monitoring

ACTUATION TIME

Per port configurable from 1ms to 100s max.

ACTUATION VOLTAGE

Battery bus. Typically 33V

NUMBER OF PORTS

Configurable. Up to 16 in groups of 4.

OVER CURRENT PROTECTION

Fixed Trimming OCP at 3A per actuation line

DATA INTERFACE

Data connection with the host rocket or satellite through redundant CAN interfaces and redundant RS-485 interfaces

SERENA
MECHANICAL
INTERFACE
TOTAL MASS (without interface screws and harness)

Max ~2.0 kg

MAX STACK HEIGHT

146mm

FOOTPRINT SIZE (L x W)

190mm x 100mm

ROCKET SIDE INTERFACE

4 x M4 bolts thru

QUALIFICATION STATUS

TRL9

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SERENA
SERVICES
IN-ORBIT SERVICES

Coordinated services to support your spacecraft once it is already in space. UARX uses its in-space logistics capability, orbital transfer vehicles and mission operations expertise to relocate satellites, host and operate payloads, and prepare assets for deorbit or follow-on servicing, extending mission value beyond the initial launch phase.

IOT
MISSIONS

Low-footprint small-sat platforms optimised for continuous IoT sensing and messaging coverage with efficient power and link budgets.

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OTV SERVICES

Orbital Transfer Vehicle services providing last-mile delivery, in-orbit servicing, technology demonstrations and debris removal to extend mission value beyond launch.

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SERENA being tested

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