Small satellite launcher set for first orbital test flight this week

The first test flight of Rocket Lab’s commercially-developed Electron launcher was held up by weather Sunday, but conditions could improve for a launch attempt Monday from New Zealand to place an instrumented rocket stage into Earth orbit in a demonstration of the company’s low-cost delivery system for lightweight satellites. The two-stage rocket’s launch window opens at 2100 GMT (5 p.m. EDT) Sunday, or 9 a.m. Monday in New Zealand, but officials caution the test flight could blast off any time through June 1. More

(Source: SpaceFlight Now - May 22)