From about 10 AM PDT on September 25 until 10 AM PDT on September 29, you can log in and speak to your faction contact to gain 3 superior ground gear tech upgrades, 3 superior shield tech upgrades, and 1 major tech accelerator.
From about 10 AM PDT on October 2 until 10 AM PDT on October 6, you can log in and speak to your faction contact to gain 3 superior science tech upgrades, 3 superior engineering tech upgrades, and 1 major tech accelerator.
From about 10 AM PDT on October 9 until 10 AM PDT on October 13, you can log in and speak to your faction contact to gain 3 superior beam tech upgrades, 3 superior cannon tech upgrades, 3 superior projectile tech upgrades, and 1 major tech accelerator.