SENTINEL-1A (39634)

COSPAR: 2014-016A | Alt Name: Sentinel-1A

Image
SENTINEL-1A Satellite Image
Additional Sources
Launch Details

Launch Date

April 3, 2014

Launch Site

FRGUI

Launch Pad

ELS

Launch Vehicle

Soyuz-ST-A

Orbital Elements

NORAD ID

39634

International Designator

2014-016A

Epoch

Sat, 04 Jul 2026 07:18:39 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

98.18°

Right Ascension

192.59°

Eccentricity

Calculating...

Argument of Perigee

84.59°

Period

98.68 min

Mean Motion

14.59 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

SENTINEL-1A

Alternative Name

Sentinel-1A

Type

Payload

Status

Operational

Owner

ESA

Country

European Space Agency

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 39634U 14016A   26185.30462434  .00000242  00000-0  60997-4 0  9998
2 39634  98.1775 192.5874 0001379  84.5884 275.5473 14.59200764652517

Source: Celestrak

Summary
SENTINEL-1A is an Earth observation satellite equipped with C-band synthetic aperture radar (SAR), launched by ESA on April 3, 2014, from the Guiana Space Centre using a Soyuz-ST-A launch vehicle. The spacecraft measures 3.42 meters in length and has a diameter of 1.6 meters, spanning up to 21.04 meters with its solar arrays deployed. It weighs approximately 2,157 kilograms at launch and operates primarily on power from two deployable solar arrays along with batteries. The satellite is based on the Prima Bus configuration manufactured by THALES and has a mission lifetime of about 7.25 years. Its primary purpose is Earth observation using radar technology for various applications including monitoring land use, ice coverage, and disaster management.
Physical Characteristics

Length

3.42

Diameter

1.6

Span

21.04

Dry Mass

2027

Launch Mass

2157

Shape

Box + 4 pan

Radar Cross Section

4.9676

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Sentinel-1A

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.

SpaceX to Lower 4,400 Starlink Satellite Orbits for Space Safety | KeepTrack X Report

SpaceX to Lower 4,400 Starlink Satellite Orbits for Space Safety | KeepTrack X Report

SpaceX plans to lower orbits of 4,400 Starlink satellites after two collision-concern incidents. Cosmo-SkyMed Earth observation satellite launched for Italy from Vandenberg.

Falcon 9 Completes GPS III Constellation for Space Force | KeepTrack X Report

Falcon 9 Completes GPS III Constellation for Space Force | KeepTrack X Report

SpaceX's Falcon 9 delivered GPS III SV-10 at 0653 UTC, capping Lockheed Martin's 10-satellite series as SpaceX eyes a $60B AI coding acquisition pre-IPO.

X Report 15 Dec 2025

X Report 15 Dec 2025

SpaceX made significant strides in satellite deployment with successful launches of 27 and 29 Starlink satellites, marking both a milestone in landings and ongoing expansion of the Starlink constellation.

X Report 3 Jan 2025

X Report 3 Jan 2025

SpaceX's pivotal role in setting a new global launch record and the upcoming launch of the Thuraya 4-NGS satellite are spotlighted today.

Amazon vs SpaceX and the Battle for the Best Satellite Internet Service

Amazon vs SpaceX and the Battle for the Best Satellite Internet Service

SpaceX and Amazon Are Playing for Keeps to Control Satellite Broadband and Connect the World. But Is There Room for Both in the Orbit?

X Report 25 Mar 2025

X Report 25 Mar 2025

SpaceX achieves new milestones with back-to-back launches for the NRO while preparing for groundbreaking crewed polar mission FRAM2.

X Report 12 Apr 2025

X Report 12 Apr 2025

Key developments include the launch of Starshield satellites for the NRO and updates on Starlink launches and NASA access concerns involving Elon Musk's team.

108 Minutes That Changed Everything - and the 20-Year Echo That Followed

108 Minutes That Changed Everything - and the 20-Year Echo That Followed

On April 12, 1961, a 27-year-old Soviet pilot rode a modified ICBM into orbit and came back alive after 108 minutes. Exactly twenty years later, two Americans climbed aboard an untested spacecraft covered in 31,000 ceramic tiles and bet their lives that the math was right.