compared docking with the Agena to air-to-air refueling: You get yourself lined up, maybe five to ten feet out. The Gemini would rendezvous and dock with the Agena as soon as Gemini's first orbit toward the end of the program. Both countdowns would proceed in parallel and required close synchronization. The McDonnell Gemini spacecraft would then be launched from Launch Complex 19, as soon as 90 minutes later. Over Ascension Island, a second burn would place the Agena into a low circular orbit. The Agena first burn would occur shortly after shroud jettison and separation from the Atlas over the Atlantic Ocean. The Agena was launched from Cape Kennedy's Launch Complex 14 on top of an Atlas booster built by the Convair division of General Dynamics. It carried approximately 14,021 to 14,054 pounds (6,360 to 6,375 kg) of propellant and gas at launch, and had a gross mass at orbital insertion of 7,117 to 7,271 pounds (3,228 to 3,298 kg).Įach ATV consisted of an Agena-D derivative upper rocket stage built by Lockheed Aircraft and a docking adapter built by McDonnell Aircraft. The combined spacecraft was a 26-foot (7.92 m)-long cylinder with a diameter of 5 feet (1.52 m), placed into low Earth orbit with the Atlas-Agena launch vehicle. The spacecraft was based on Lockheed Aircraft's Agena-D upper stage rocket, fitted with a docking target manufactured by McDonnell Aircraft. The Agena Target Vehicle ( ATV), also known as Gemini-Agena Target Vehicle ( GATV) was an unmanned spacecraft used by NASA during its Gemini program to develop and practice orbital space rendezvous and docking techniques, and to perform large orbital changes, in preparation for the Apollo program lunar missions. The ATDA was used once on Gemini 9A after a second ATV launch failure on May 17, 1966, but failed as a docking target because its launch shroud failed to separate. The ATV for Gemini 6 failed on launch on October 25, 1965, which led NASA to develop the Augmented Target Docking Adapter (ATDA) as a backup, a smaller spacecraft consisting of the docking target fitted with an attitude control propulsion system, but lacking the Agena orbital change rocket. It carried approximately 14,021 to 14,054 pounds (6,360 to 6,375 kg) of propellant and gas at launch, and had a gross mass at orbital insertion of 7,117 to 7,271 pounds (3,228 to 3,298 kg). The combined spacecraft was a 26-foot (7.92 m)-long cylinder with a diameter of 5 feet (1.52 m), placed into low Earth orbit with the Atlas-Agena launch vehicle. The IMX174 sensor also uses Sony's Pregius Global Shutter function with analog memory to permit the scanning of all pixels simultaneously.The Agena Target Vehicle (ATV), also known as Gemini-Agena Target Vehicle (GATV) was an unmanned spacecraft used by NASA during its Gemini program to develop and practice orbital space rendezvous and docking techniques, and to perform large orbital changes, in preparation for the Apollo program lunar missions. With a quantum efficiency (QE) of 78%, this advanced sensor incorporates Sony's Exmor technology that enables high-speed processing, low noise, and low power dissipation using column parallel A/D conversion. The heart of this monochrome camera is a Type 1/1.2 CMOS sensor with 13.4 mm diagonal. It's ideal for high-resolution imaging of the Moon, Sun (with proper solar filter), and planets, as well as brighter deep-sky objects. Built around the Sony IMX174 sensor, this advanced camera has a resolution of 1936x1216 with 5.86 μm pixel size. The ZWO ASI174MM is a sensitive and state-of-the-art monochrome astronomy camera with 2.35 megapixel resolution and USB 3.0 download speed.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |