India has relaxed restrictions on the sale of high-resolution imagery of the Indian subcontinent obtained by its remote sensing satellites.

Under a revised data policy issued July 4, all imagery up to 1-meter spatial resolution shall be readily available for distribution โ€œon a non-discriminatory basis,โ€ the Indian Space Research Organisation (ISRO) announced.

The revised guidelines replace a 2001 policy that restricted public distribution of imagery sharper than 5.8-meter resolution.

While the new guidelines allow government users ready access to data of even better than 1-meter resolution, โ€œall data of better than 1-meter resolution shall be screened and cleared by the appropriate agency prior to distributionโ€ to nongovernment users in order โ€œto protect national security interests,โ€ ISRO said.

Private entities wanting to obtain submeter resolution imagery  โ€œfor developmental workโ€ will need the endorsement of at least one government agency, according to the new guidelines.

Non-Indian entities and other users, such as web-based service providers, ISRO said, โ€œcan obtain the data after further clearance from an interagency High Resolution Image Clearance Committee (HRC), already in place.โ€ Specific requests for data of sensitive areas, by any user, can be fulfilled only after obtaining clearance from this committee, ISRO said. Nondisclosure agreements also must be concluded between ISROโ€™s National Remote Sensing Centre in Hyderabad and users for data of better than 1-meter resolution.

Indiaโ€™s IRS-1C satellite launched in 1995 had a panchromatic camera with a resolution of 5.8 meters. The countryโ€™s first 1-meter-resolution remote sensing spacecraft, the so-called Technology Experiment Satellite, was not launched until 2001 and has mainly been used by Indiaโ€™s security services. The Cartosat-2 satellite launched in 2007 returns imagery with a spatial resolution of 1 meter while its successors, Cartosat-2A and Cartosat-2B, can take images with a resolution of 0.8 meter.