FLOCK 4A-20 (44091)

COSPAR: 2019-018P | Alt Name: Flock 4a-20
DECAYED

Image
FLOCK 4A-20 Satellite Image
Additional Sources
Launch Details

Launch Date

April 1, 2019

Launch Site

SRILR

Launch Pad

SLP

Launch Vehicle

PSLV-QL

Orbital Elements

NORAD ID

44091

International Designator

2019-018P

Decay Date

4/6/2023

Basic Satellite Info

Name

FLOCK 4A-20

Alternative Name

Flock 4a-20

Type

Payload

Status

Decayed

Owner

PLAN

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Summary
FLOCK 4A-20 is a CubeSat (3U) satellite built by PLAN and owned by the same entity. Launched on April 1, 2019, from SRILR using the PSLV-QL launch vehicle, this technology demonstration satellite has dimensions of 0.3 meters in length and diameter, with a span of 0.3 meters. It weighs 5.7 kilograms both at launch and dry mass. Equipped with PS0, PS1 or PS2 imaging payload as part of its Dove 2232 mission, the satellite uses solar cells and batteries for power supply. Its design includes a Box+2 pan shape without any motor except in some cases where it uses FEEP technology for propulsion. The expected operational lifetime is approximately one year when in International Space Station (ISS) orbit or two to three years in Sun-Synchronous Orbit (SSO).
Physical Characteristics

Length

0.3

Diameter

0.1

Span

0.3

Dry Mass

5.7

Launch Mass

5.7

Shape

Box+2 pan

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Dove 2232

Purpose

Technology

Mission

Technology

Manufacturer

PLAN

Life Expectancy

~ 1 year (ISS orbit); 2-3 years (SSO)

Bus

Cubesat 3U

Configuration

CubeSat (3U)

Motor

None (most); FEEP (#Flock-3p')

Equipment

PS0, PS1 or PS2 imaging payload

Power System

Solar cells, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

X Report 24 Sep 2025

X Report 24 Sep 2025

SpaceX prepares for the launch of significant NASA and NOAA missions, while Starship's 11th test flight edges closer.

X Report 5 May 2025

X Report 5 May 2025

SpaceX celebrated Star Wars Day with a successful launch of Starlink satellites, furthering its mission to enhance global internet access. Lego also revealed a new collectible set tied to the franchise.

Space Brief 4 Nov 2024

Space Brief 4 Nov 2024

China's Tiangong space station completes crew rotation, Rocket Lab prepares for confidential launch, and Japan successfully launches military satellite with its H3 rocket.

X Report 19 Jan 2025

X Report 19 Jan 2025

SpaceX prepares to launch 27 Starlink satellites in its first mission since the recent Starship explosion, while the FAA investigates debris reports from the failed test flight.

SpaceX Starfall Reentry Capsule Debuts, X Report 23 Jun 2026

SpaceX Starfall Reentry Capsule Debuts, X Report 23 Jun 2026

SpaceX Starfall reentry capsule debuted June 23: the 2,100 kg disk launched on a Falcon 9 from Cape Canaveral to demo cargo return from orbit.

Space Brief 9 Sep 2024

Space Brief 9 Sep 2024

Today's Space Brief explores new satellite launches, significant reentries, funding milestones, and critical policy updates.

X Report 17 May 2025

X Report 17 May 2025

SpaceX gains regulatory approval for a new Starship test flight, further expands its role in U.S. defense, and successfully launches 26 additional Starlink satellites. United Airlines also rolls out Starlink Wi-Fi on its flights.

Lagrange Points

Lagrange Points

Five spots in the Earth-Sun system where the gravitational tug of two massive bodies and the pull of circular motion all cancel out, creating gravitational parking spaces where spacecraft can sit for decades with almost no fuel.