China launched its first civilian surveying and mapping satellite at the end of 2011.

2011年底，中国发射了第一颗民用测绘卫星。

youdao

China successfully launched a mapping satellite, "mapping satellite - I," from the northwestern Jiuquan satellite launch Center at 3:10 p.m. (Beijing time) Tuesday.

北京时间周二下午3点10分，我国在西北的酒泉卫星发射中心成功地发射了一颗测图卫星“天绘一号”。

youdao

China successfully launched a mapping satellite, "mapping satellite - I," from the northwestern Jiuquan satellite launch Center at 3:10 p. m. (Beijing time) Tuesday.

北京时间周二下午3点10分，我国在西北的酒泉卫星发射中心成功地发射了一颗测图卫星“天绘一号”。

youdao

You may be aware of Goce, the European Space Agency's gravity mapping satellite.

BBC: Satellites have an electric future

Start-up Aeryon is mainly focused on the consumer uses of drones, such as replacing satellite mapping with drone mapping.

FORBES: How Libyan Rebels Got A $120,000 Micro-Drone

Bart Bailey is CEO of 3001 Incorporated, a small satellite mapping company.

NPR: Firms Work to Locate and Pay Displaced Workers