VIASAT-2

NORAD 42740· COSPAR 2017-029A· Active satellite· Communications· GEO
Launch
Launched on Jun 1, 2017 from Ariane Launch Area 3, French Guiana aboard a Ariane 5 ECA.
Ariane 5 ECA | ViaSat-2 & EUTELSAT 172B
VIASAT-2
Cesarhenriquebrandao · CC BY-SA 4.0 · via Wikimedia Commons
Live · TLE epoch 2026-07-13 13:07 UTC
Orbit class
GEO — Geostationary (~35,786 km, equatorial)
Operator
Viasat
Country
United States
Manufacturer
Launched
Jun 1, 2017
Mass
Apogee
35,796 km
Perigee
35,794 km
Inclination
0.02°
Period
23.94 h

About VIASAT-2

ViaSat-2 (also written as VIASAT-2) is an American commercial communications satellite operated by Viasat, Inc. and cataloged by the United States Space Surveillance Network under NORAD ID 42740. Assigned the international designator 2017-029A, the satellite was launched on June 1, 2017 and subsequently entered service in the Ka-band communications market, extending broadband internet coverage across a broad swath of the Western Hemisphere and trans-Atlantic corridors. As of the time of writing it remains in orbit, operating in geostationary orbit above the equator.

Mission and Purpose

ViaSat-2 was developed to extend and substantially expand the high-throughput satellite internet services that Viasat had pioneered with its earlier Ka-band spacecraft. Where the first-generation ViaSat-1 established the company's presence in consumer broadband from space, ViaSat-2 was designed around a considerably larger service footprint, moving beyond the continental United States to encompass Mexico, the Caribbean basin, portions of South America, and aeronautical and maritime routes crossing the Atlantic Ocean toward Europe. This geographic expansion reflected the growing commercial appetite for inflight and at-sea connectivity, markets that require continuous coverage along routes traversing open ocean where terrestrial infrastructure is unavailable.

At the time of its introduction, ViaSat-2 was promoted as the highest-capacity commercial communications satellite then in service, with a total throughput figure of 300 Gbit/s cited in its pre-launch and launch-period documentation. This figure placed it ahead of rival high-throughput satellites of the era, including HughesNet's EchoStar XIX, which had entered service in late 2016. The comparison underscored an industry-wide shift toward so-called high-throughput satellites, a class of spacecraft that uses aggressive frequency reuse and spot-beam architectures to deliver far more usable bandwidth per unit of orbital resource than traditional wide-beam telecommunications satellites. ViaSat-2 represented Viasat's contribution to this competitive segment, aiming to drive down the per-gigabyte cost of satellite broadband sufficiently to make it viable not just for rural residential customers but also for commercial aviation and shipping operators.

The satellite began providing live service to customers in late February 2018, roughly nine months after launch — a timeline consistent with the extensive in-orbit testing, beam calibration, and ground-network integration that complex high-throughput spacecraft require before commercial activation.

Orbit and Tracking

ViaSat-2 occupies a geostationary orbit, the band of space approximately 35,786 kilometers above the equator where a satellite's orbital velocity matches the rotational rate of Earth beneath it, causing the spacecraft to appear stationary relative to ground observers and ground antennas. The satellite's tracked orbital parameters confirm this placement precisely: the catalog records an apogee of 35,797 km and a perigee of 35,793 km, a difference of only four kilometers that indicates an orbit of very low eccentricity — essentially circular. Its inclination is recorded at 0.0°, meaning the orbital plane is aligned almost exactly with Earth's equatorial plane, as expected for a fully operational geostationary satellite. The orbital period is 1,436.2 minutes, or very close to 23 hours and 56 minutes, matching the Earth's sidereal rotation period and confirming the geostationary condition.

These characteristics make ViaSat-2 effectively invisible to casual tracking in the way that lower-orbit satellites are tracked — it does not arc across the sky or pass overhead in a matter of minutes. Instead, a ground observer with a suitable reference point would see the satellite hold a fixed position in the sky, day and night, indefinitely. This stability is precisely what makes geostationary orbit valuable for communications applications: a fixed dish antenna on a rooftop, a ship, or an aircraft can maintain a persistent lock on the satellite without mechanical steering, greatly simplifying and reducing the cost of the user terminal.

For tracking purposes, ViaSat-2 is listed in the public satellite catalog under NORAD ID 42740 and COSPAR designator 2017-029A. The designator encodes the launch year (2017), the sequential launch number within that year (029), and the payload identifier (A, indicating it was the primary object of that launch). These identifiers allow operators, researchers, and tracking services to unambiguously distinguish ViaSat-2 from the many hundreds of other objects in geostationary orbit.

Design and Operator

Viasat, Inc. is an American technology and satellite communications company headquartered in Carlsbad, California. The company has pursued a vertically integrated model in the satellite broadband market, developing not only the space segment but also the ground infrastructure and consumer terminals that together deliver service to end users. ViaSat-2 is the second satellite in the company's own-branded geostationary fleet, following the landmark ViaSat-1 mission that demonstrated the commercial viability of high-throughput Ka-band architecture when it entered service in 2012.

The satellite's manufacturer is not recorded in the public orbital catalog entry reviewed here. The mass of the spacecraft is likewise not publicly cataloged in the source data available to this database, and so no figure is stated here. What is known is that ViaSat-2 is categorized as a payload object — that is, a functional spacecraft as opposed to a rocket body or debris fragment — and its owner country is recorded as the United States, consistent with Viasat's American corporate domicile and the satellite's licensing under U.S. regulatory jurisdiction.

High-throughput satellites of this class are typically large, multi-kilowatt spacecraft requiring substantial launch vehicles capable of lifting them to geostationary transfer orbit. From there, onboard propulsion systems conduct the weeks-long series of apogee-raising maneuvers that circularize the orbit and bring the satellite to its operational longitude. The 2017-029A designation indicates ViaSat-2 was the primary payload of its launch, and the June 2017 launch date places it among the first wave of second-generation commercial high-throughput satellites that began transforming expectations around satellite internet capacity in the mid-2010s.

Significance and Context

ViaSat-2's entry into service came at a pivotal moment in the satellite communications industry. The previous decade had seen a series of high-throughput satellite deployments — beginning with projects like iPSTAR and ViaSat-1 itself — that collectively demonstrated the feasibility of delivering broadband speeds comparable to terrestrial DSL or cable over a satellite link. However, capacity remained a constraint, and the per-gigabyte cost of satellite data kept the technology positioned as a last-resort option for users without access to fiber or cable.

By pushing aggregate throughput to the 300 Gbit/s level across a wider geographic service area, ViaSat-2 was intended to address both the capacity ceiling and the coverage limitation simultaneously. The Atlantic route coverage in particular opened a commercially significant segment: airlines operating transatlantic flights had long struggled to offer consistent inflight Wi-Fi, and a satellite with robust coverage across both North American and European approach regions, as well as the ocean between them, was an enabling piece of infrastructure for that market.

At the same time, ViaSat-2's introduction coincided with the beginning of serious commercial activity around low-Earth-orbit broadband constellations, which would go on to represent a structural challenge to geostationary high-throughput satellite operators. The satellite's legacy is therefore partly a reflection of the high-water mark of the single-satellite, very-high-capacity geostationary model — a philosophy that Viasat continued to develop with the subsequent ViaSat-3 program aimed at even higher throughput on a global scale.

ViaSat-2 remains in orbit and, based on its stable geostationary placement, is not anticipated to decay or reenter Earth's atmosphere on any near-term timescale. Geostationary satellites at end of life are typically maneuvered to a slightly higher "graveyard" orbit to vacate their operational slot, preserving the geostationary belt for successor spacecraft. Whether ViaSat-2 has entered a reduced-service or decommissioned phase is not reflected in the catalog data available here, and current operational status is not confirmed in the source record for this entry.

Observability

ViaSat-2 is not a practical target for visual observation by amateur skywatchers. Geostationary satellites, situated nearly 36,000 km from Earth's surface, are far beyond the range at which the naked eye or most consumer-grade telescopes can resolve a spacecraft as a discrete point of light under normal viewing conditions. Unlike satellites in low Earth orbit, which move rapidly across the sky and can sometimes be seen with the unaided eye shortly after sunset or before sunrise, ViaSat-2 holds a fixed position relative to the ground and does not produce the characteristic moving point of light that makes ISS passes or Iridium flares visible. Dedicated deep-sky astrophotographers with tracking mounts sometimes image geostationary satellites as stationary dots against a field of trailing stars, but this requires deliberate effort and appropriate equipment. For most purposes, ViaSat-2 is a radio-frequency and orbital-mechanics object rather than a visual one.

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