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Systems Tool Kit (formerly Satellite Tool Kit), often referred to by its initials STK, is a multi-physics software application from Analytical Graphics, Inc. (an Ansys company) that enables engineers and scientists to perform complex analyses of ground, sea, air, and space platforms, and to share results in one integrated environment. [1]
The chamber can provide very accurate coatings and overcoatings of 100 ± 2 Angstrom thickness (approximately 56 aluminium atoms thick), for small-to-multi-ton optics up to 1.8-meter (72-inch) in diameter, in a vacuum exceeding 7 × 10 6 Torr, using a vertical-optic, 1500-ampere discharge system.
Four original spares. Two unused Pump Modules remain – ELC-1 FRAM-7 (keel side) PM SN0007, [5] ESP-2 FRAM-1 (top side) PM SN0005. [5] [11] Two utilised – ELC-2 FRAM-6 (keel side) PM SN0004 (Installed on ESP-2 FRAM-1 during STS-121, then removed by the Exp 24 crew to replace the failed original PM SN0002 on the S1 truss. SN0002 was returned ...
Columbus is a laboratory module built by the European Space Agency. [7] It is host to scientific research in fluids, biology, medicine, materials and Earth sciences. Columbus also has four external payload locations, used to expose experiments to the vacuum of space. The Columbus module was delivered to the ISS by STS-122 on February 7, 2008. [8]
The rocket had a diameter of 1.6 m (5 ft 3 in) for the first stage and 1.3 m (4 ft 3 in) for the second stage and payload fairing. [ 4 ] On the 24th of October 2019, the company announced plans to develop a three-stage variant that would be capable of launching 100 kg (220 lb) to the Moon , 70 kg (150 lb) to Venus , or 50 kg (110 lb) to Mars .
[13] [14] [15] The crew module is the only part of the spacecraft that returns to Earth after each mission and is a 57.5° frustum shape with a blunt spherical aft end, 5.02 meters (16 ft 6 in) in diameter and 3.3 meters (10 ft 10 in) in length, [16] with a mass of about 8.5 metric tons (19,000 lb).
Boeing's CST-100 Starliner – "CST" an acronym for "Crew Space Transportation" – measures 4.6 meters (15 feet) in diameter and 5.1 meters (17 feet) in height. [106] [107] [138] The crew module of Starliner can be reused for up to ten flights, while the service module is expended during each flight.
The diagram shows a Hohmann transfer orbit to bring a spacecraft from a lower circular orbit into a higher one. It is an elliptic orbit that is tangential both to the lower circular orbit the spacecraft is to leave (cyan, labeled 1 on diagram) and the higher circular orbit that it is to reach (red, labeled 3 on diagram).