Anonymous ID: eaa4ef July 27, 2020, 11:30 p.m. No.10098927   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>8938 >>8940 >>8943 >>8961 >>8995 >>9076 >>9156 >>9210

>>10098820

Corona (satellite)

The Corona[1] program was a series of American strategic reconnaissance satellites produced and operated by the Central Intelligence Agency Directorate of Science & Technology with substantial assistance from the U.S. Air Force. The Corona satellites were used for photographic surveillance of the Soviet Union (USSR), the People's Republic of China, and other areas beginning in June 1959 and ending in May 1972.

 

Jun 1959 โ€“ Sep 1960 KH-1 "Corona", C 7.5 m First series of American imaging spy satellites. Each satellite carried a single panoramic camera and a single return vehicle. 10 systems; 1 recovery.

Oct 1960 โ€“ Oct 1961 KH-2 Coronaโ€ฒ, Cโ€ฒ (or "C-prime")* 7.5 m Single panoramic camera and a single return vehicle. 7 systems; 4 recoveries.

Aug 1961 โ€“ Jan 1962 KH-3 Coronaโ€ด, Cโ€ด (or "C-triple-prime")* 7.5 m Single panoramic camera and a single return vehicle. 9 systems; 5 recoveries.

Feb 1962 โ€“ Dec 1963 KH-4 Corona-M, Mural 7.5 m Film return. Two panoramic cameras. 26 systems; 20 recoveries.

Aug 1963 โ€“ Oct 1969 KH-4A Corona J-1 2.75 m Film return with two reentry vehicles and two panoramic cameras. Large volume of imagery. 52 systems; 94 recoveries.

Sep 1967 โ€“ May 1972 KH-4B Corona J-3 1.8 m Film return with two reentry vehicles and two panoramic rotator cameras. 17 systems; 32 recoveries.

Feb 1961 โ€“ Aug 1964 KH-5 Argon 140 m Low-resolution mapping missions; single frame camera. 12 systems; 5 recoveries.

Mar 1963 โ€“ July 1963 KH-6 Lanyard 1.8 m Experimental camera in a short-lived program. 3 systems; 1 recovery.

 

https://en.wikipedia.org/wiki/Corona_(satellite)

Anonymous ID: eaa4ef July 27, 2020, 11:37 p.m. No.10098961   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

>>10098927

How many space missions were done before they stopped? What could they have been doing up there in space? Upgrades maybe? Why was the shuttle program shut down? The Q drop say package delivery, what kind of package? New software to take control of a no longer secure comped control system maybe?

Anonymous ID: eaa4ef July 28, 2020, midnight No.10099108   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>9130

>>10099076

That's pretty much what they did but, that was the 60's, how many space launches were there during the space shuttle era? Why make new satellites and put them on expensive boosters when you can just refurbish an old one? Pull the old imaging equipment and put in newer and probably smaller imaging equipment designed to fit in the cavity left by removing the old stuff.

Anonymous ID: eaa4ef July 28, 2020, 12:10 a.m. No.10099156   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>9161 >>9162

>>10098927

Snow White and the Seven Dwarfs

Jun 21, 2010 12:00 am PST

Starting in the late 1950s and lasting for several decades, the most common form of computing was based on mainframe computers. The first major blow to the dominance of mainframes came from the broad deployment of mini computers and the second major blow came from the even broader development of personal computers. While mainframe computers never went away, they languished for years in relative obscurity. However, as will be explained in the next few newsletters, there is evidence to suggest that we are entering a new era of mainframe computing.

 

While it is common to associate mainframe computers with IBM, the reality is that several manufacturers produced mainframe computers from the late 1950s through the 1970s. The group of manufacturers was often referred to as "Snow White and the Seven Dwarfs". In that context, Snow White was IBM and the seven dwarfs were Burroughs, UNIVAC, NCR, Control Data Corporation, Honeywell, General Electric and RCA. IBM will likely be a major player in the emerging generation of mainframe computing. However, this time its competition will come from giant competitors, not dwarfs.

 

Mainframe computing was based on a few fundamental building blocks. Those building blocks were the end user devices in the branch offices, the network that connected those branch office devices, a wide area network that connected the branch offices to a data center and a mainframe computer and associated equipment such as front-end processors. This newsletter will begin the process of looking at the end user devices of the original mainframe era and compare and contrast them to the end user devices of the emerging era of mainframe computing.

 

When the original mainframe era began, the standard end user device was a dumb terminal that was often referred to as an ASCII (American Standard Code for Information Interchange) terminal. It got this name because it was a simple input/output device that transmitted and received ASCII data. In the early 1970s this device was replaced by the IBM 3270 terminal in part because the 3270 terminal minimized the number of I/O interrupts required by accepting large blocks of data known as datastreams.

 

The standard application of the original mainframe era was some form of transaction processing, such as processing insurance claims. In this environment, users were generally presented with forms to fill out. The user moved about the form with arrow, tab and backtab keys, filling in and correcting the various fields. When finished, the user pressed the Enter key. As noted, this style of computing lost favor in the client-server world that was ushered in by the ubiquitous deployment of PCs. However, as we will discuss in the next newsletter, this style of computing has gained favor in the last few years. Only now, instead of calling it a dumb terminal we call it thin client computing.

 

https://www.networkworld.com/article/2212166/snow-white-and-the-seven-dwarfs.html

Anonymous ID: eaa4ef July 28, 2020, 12:21 a.m. No.10099205   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>9227

>>10099173

Look, you have an existing frame already floating in orbit, old tech yes but you have package bays or places to put whatever is in there. Remove old tech and replace with new. Boosting things into space is all about weight, the more weight, the more fuel needed and boost power you need. Besides, you don't necessarily need to upgrade all of them, depending on the type of mission, lower grade optics may be just fine.