EROS B

EROS B belongs to a series of commercial, high-resolution observation satellites manufactured by Israel Aircraft Industries’ MBT division for ImageSat International.[6] The EROS satellites resemble Israel’s Ofeq surveillance satellites, but used Russian commercial launchers to reach near-polar orbits permitting almost global coverage.[7]

The satellite’s role spans commercial imagery services and national security: Israel’s Defense Ministry received intelligence services from EROS A and EROS B, while ImageSat sold imagery services abroad, including access for the United Arab Emirates.[8][2] The first two EROS satellites were originally developed as civilian counterparts to the military Ofek series; following the launch failures of Ofek 4 and Ofek 6, they also served Israel’s defense establishment as military satellites.[5]

Development of EROS B was underway by 2002, when its manufacturer planned a launch in the first half of 2004.[6] Early descriptions used the designation EROS B1 and identified it as the successor to EROS A1, with projected panchromatic and multispectral color imagery at 0.87-meter resolution.[9] Another early projection anticipated 0.70-meter resolution when the satellite became operational in 2006.[10] These descriptions concerned planned capabilities rather than measured operational performance.[9][10]

By March 2006, ImageSat was preparing EROS B for an April launch and had raised $34 million through a bond placement, increased from a planned $30 million after the placement was oversubscribed.[11] The company had initially intended to finance the launch through a Wall Street flotation.[11] An April financing account described EROS B as a planned $100 million satellite, stated that IAI had invested $50 million toward the launch, and said the remaining funding had been obtained.[12] Launch insurance was then being finalized through a syndicate led by Lloyd’s of London, with an expected cost of $3–4 million.[12] A later account placed ImageSat’s purchase price for EROS B at $110 million.[13]

EROS B launched from Siberia in April 2006.[3] A report dated April 25 recorded a successful launch while noting that establishing whether the satellite was operational would take additional time.[3] The following day, it was expected to reach its working orbit by the weekend.[14] The launch was presented as an improvement to Israel’s ability to monitor the Middle East, particularly Iran, following the failed Ofek-6 launch.[14]

By July 2006, ImageSat was operating EROS B alongside EROS A; both were described as civilian imaging satellites that formed part of Israel’s Ofek satellite-surveillance network.[8] In 2017, EROS B was ImageSat’s sole operating commercial satellite, with EROS A no longer in use.[15] In September 2022, ImageSat announced a two-year extension, beginning that December, of a customer agreement for EROS B satellite services, documenting continued commercial use more than sixteen years after launch.[16]

At launch, a defense official said EROS B was designed to show objects as small as 70 centimeters on the ground, while another launch-period report described a camera capable of distinguishing objects as small as two feet in diameter.[3][14] In 2012, Science and Technology Minister Daniel Hershkowitz displayed detailed EROS-B images of Jerusalem’s Temple Mount and Syria’s Tabaqa Dam.[17]

International access formed part of the satellite’s commercial application.[2] A 2009 report described a new agreement giving the United Arab Emirates access to EROS B imagery, following an earlier arrangement for Abu Dhabi to obtain EROS A images.[2] The new contract was estimated at $20 million annually and included a deciphering station and images of pre-specified areas.[2] Foreign subscribers were reported to be unable to decipher images taken over Israel.[2]

By 2017, ImageSat’s customer model involved leasing agreed geographic coverage areas, with customers receiving exclusive, independent, and confidential control of satellite photographs.[15] Its principal customers were governments of countries not hostile to Israel, which received high-resolution imagery and analysis; the description concerned ImageSat’s services generally rather than identifying each service as an EROS B capability.[15]

In June 2016, Brazilian Defense Minister Raul Jungmann announced that EROS B would support security at the Rio Olympics and Paralympics through a six-month experimental arrangement.[4] He described a low-Earth-orbit satellite capable of imagery at up to 50-centimeter resolution over an area of 450 kilometers, enabling identification of objects, people, cars, and goods.[4] The announcement also raised possible future use for border surveillance, but described plans rather than confirming either the trial’s completion or subsequent border-surveillance operations.[4]

An EROS-B image taken on April 29 and discussed in 2018 showed activity at Iran’s Fordow facility: an open tunnel entrance gate, approximately thirty cars and four buses nearby, and two buildings previously under construction that appeared complete.[1]

EROS B was identified in 2012 as one of Israel’s principal satellite projects.[17] A September 2022 extension of an EROS B services agreement documented continued commercial use more than sixteen years after its 2006 launch.[16] Its combination of Israeli manufacture, commercial operation, and defense use connected the country’s space industry with both domestic security needs and international imagery markets.[1][5]

The satellite operated within an imagery sector serving primarily national-security, military, and internal-security purposes, while also offering civilian applications such as agricultural control and planning.[8] Its documented applications ranged from Israeli defense imagery services to the proposed Brazilian Olympic-security arrangement and commercial access for the United Arab Emirates.[4][2]

The activity visible in the 2018 Fordow imagery admitted more than one explanation: it could have reflected preparations to reactivate uranium enrichment or conversion of the facility to civilian research.[1] The imagery alone did not establish which explanation was correct, making the distinction between visible activity and inferred intent important in this application of EROS B’s observations.[1]