Chart excludes the only launch of Conestoga from pad 0A in 1995. Chart also excludes the suborbital launch of ALV X-1 on 22 August 2008 from pad 0B.
History
Pad 0A
LP-0A was first built for the failed Conestoga rocket program. The original launch tower was subsequently demolished in September 2008. A new pad facility was built from 2009-2011 for Orbital SciencesTaurus II, now renamed Antares. Pad modifications for Antares included the construction of a Horizontal Integration Facility for launcher/payload mating and a wheeled transporter/erector that will roll out and erect the rocket on its launch pad about 24 hours prior to launch. The first launch of Antares occurred on April 21, 2013. The pad was reinforced with pilings and features a liquid fueling facility, flame trench, and deluge system for cooling and sound suppression. The pad is capable of supporting a gross liftoff weight of and can launch payloads of up to into low Earth orbit On October 28, 2014, an Orbital Systems Antares rocket, flying as mission Cygnus CRS Orb-3, crashed 6 seconds after takeoff and appeared to have done significant damage to the launch pad itself. On October 29, 2014, teams of investigators began examining debris at the crash site. By May 2015, estimates had been revised down to around US$13 million. At that time, NASA had committed US$5 million, Virginia Commercial Space Flight Authority committed US$3 million and Orbital ATK US$3 million. Repairs were underway and planned to be completed by September 2015, but repairs were only funded up to August with Virginia CSFA requesting that Orbital provide the remaining US$2 million. On September 30, 2015, the spaceport announced repairs on pad 0A had been completed. The launch pad resumed flight operations with the Cygnus CRS OA-5 mission on October 17, 2016.
Pad-0B
LP-0B became operational in 1999, and was subsequently upgraded in 2003 with the construction of a mobile service tower, which was completed in 2004. It is active, and is currently used by Minotaur rockets. The first launch from LP-0B was of a Minotaur I in December 2006, and was the first launch from the Mid-Atlantic Regional Spaceport. On October 19, 2017, the now-defunct Vector Space Systems announced plans to conduct three launches from pad 0B with its in-development Vector-R small satellite launch vehicle over the subsequent two years, with an option for 5 additional launches.
Launch Complex-2
In October 2018, Rocket Lab announced that it had selected Mid-Atlantic as its second launch site called, Rocket Lab Launch Complex-2. The new launch pad is near Pad 0A, with the first launch scheduled for August 2020.The new launch complex will also have an integration facility. In December 2019, construction was completed and Rocket Lab inaugurated the Launch Complex-2 at Mid-Atlantic Regional Spaceport. In April 2020, Rocket Lab tested an Electron rocket on the pad.