SENTINEL-1B (41456)

COSPAR: 2016-025A | Alt Name: Sentinel-1B

Image
SENTINEL-1B Satellite Image
Additional Sources
Launch Details

Launch Date

April 25, 2016

Launch Site

FRGUI

Launch Pad

ELS

Launch Vehicle

Soyuz-ST-A

Orbital Elements

NORAD ID

41456

International Designator

2016-025A

Epoch

Sat, 04 Jul 2026 06:41:55 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

98.09°

Right Ascension

246.70°

Eccentricity

Calculating...

Argument of Perigee

71.74°

Period

96.05 min

Mean Motion

14.99 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

SENTINEL-1B

Alternative Name

Sentinel-1B

Type

Payload

Status

Non-operational

Owner

COPERN/ESA

Country

EU

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 41456U 16025A   26185.27911833  .00001727  00000-0  14650-3 0  9996
2 41456  98.0925 246.6989 0016843  71.7423 288.5630 14.99265484546341

Source: Celestrak

Summary
SENTINEL-1B is an Earth observation satellite equipped with a C-band synthetic aperture radar (SAR). It was launched on April 25, 2016, from the Guiana Space Centre using a Soyuz-ST-A launch vehicle. The satellite has dimensions of 3.42 meters in length and 1.6 meters in diameter, with a span of 21.04 meters. Its dry mass is 2027 kilograms, and it had an initial launch mass of 2157 kilograms. SENTINEL-1B was manufactured by THALES for COPERN/ESA and is part of the Sentinel mission for radar-based Earth observation. It uses two deployable solar arrays and batteries for power generation. The satellite has a lifetime expectancy of 7.25 years and features an AOCS motor system. Its shape is described as a box with four panels, and it operates in orbit for its intended purpose of providing continuous Earth observation data.
Physical Characteristics

Length

3.42

Diameter

1.6

Span

21.04

Dry Mass

2027

Launch Mass

2157

Shape

Box + 4 pan

Radar Cross Section

5.5865

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Sentinel-1B

Purpose

Earth observation (Radar)

Mission

Earth observation (Radar)

Manufacturer

THALES

Life Expectancy

7.25 years

Bus

Prisma

Configuration

Prima Bus

Motor

AOCS

Equipment

C-band synthetic aperture radar (SAR)

Power System

2 deployable solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Map
This tool will help you track the satellite's position and predict its upcoming passes over your location. Simply input the coordinates or click the geolocation button to get started.
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

The Day We Banned the Word "Film"

The Day We Banned the Word "Film"

On January 20, 1972, the second KH-9 HEXAGON lifted off from Vandenberg - carrying the most sophisticated reconnaissance system ever built by engineers who weren't allowed to say 'film,' 'camera,' or even talk to each other about what they were doing.

Starship Flight 12 Targets May 19 with Redesigned Ship | KeepTrack X Report

Starship Flight 12 Targets May 19 with Redesigned Ship | KeepTrack X Report

SpaceX targets May 19 for Starship Flight 12 debut, while CRS-34 delivers 6,500 lbs of cargo to ISS aboard a Falcon 9.

First Nuclear-Powered Commercial Satellite Flies on Transporter-17 | KeepTrack X Report

First Nuclear-Powered Commercial Satellite Flies on Transporter-17 | KeepTrack X Report

SpaceX's Transporter-17 rideshare carried 81 payloads including history's first nuclear-powered commercial satellite on July 7.

X Report 20 Dec 2024

X Report 20 Dec 2024

SpaceX gears up for multiple significant missions while managing a Crew Dragon delay. Vast Space partners with SpaceX for ISS missions, and Lunar landers prepare for lift-offs.

Space Brief 18 Jun 2025

Space Brief 18 Jun 2025

Today's updates cover crucial developments in satellite licensing reforms, defense cybersecurity, and AI integration within government sectors.

€140M ESA Launcher Funding at Risk of Lapse | KeepTrack Space Brief

€140M ESA Launcher Funding at Risk of Lapse | KeepTrack Space Brief

Nearly €140 million in ESA launcher development funds faces forfeiture with no replacement mechanism. Europe's independent launch capacity under pressure as Arianespace struggles.

SpaceMobile-006 (BlueBird 6)

SpaceMobile-006 (BlueBird 6)

The largest commercial antenna ever deployed in low Earth orbit belongs to a company most people have never heard of. AST SpaceMobile's BlueBird 6 is either the future of cellular connectivity or the most ambitious overreach in telecom history - and it just finished unfolding.

X Report 6 Dec 2024

X Report 6 Dec 2024

SpaceX achieves a milestone with its 350th successful mission, including a significant Starlink launch, while Starship advances in testing. Meanwhile, SpaceX boosts SiriusXM's satellite fleet and industry competitors make strides.