Prior to 1957 only one object was blasted into space with enough velocity to stay up, it was a 1 ton "manhole cover" blasted into space by a sub kiloton nuclear test. That thing probably left the solar system. It appears geosynchronous orbiting objects have been captured on telescope slides over the years. The first geosynchronous orbiting man made object went up in 1959. It starts out weird and the scientists are like oh we should find a boring explanation for what we are seeing, but they don't and it only gets weirder and they only seem to find more of them the harder they look. It's going to be a lot harder to find them now with all the stuff people have put up there. These objects appear to be geosynchronous so in theory they could stay up there for 1,000 to 2,000 years. So 2 possibilities. 1 They were there and are still there. 2 They were there, but now they're not.
"600lb manhole cover blasted into space by a sub kiloton nuclear test." Ok, I had to look that up.. The fastest man-made object is a manhole cover that was blasted into space by an underground nuclear test (zmescience.com) and for the Debbie Downers No, a Nuclear Explosion Did Not Launch a Manhole Cover into Space (gizmodo.com)
What probably happened is the Shockwave hit the cap and shattered it. But, the containment pill the gadget was in didn't shatter so there may be a slightly melted, slightly radioactive manhole cover flying through interstellar space right now.
Most astronomical photos (plates) were exposed for minutes to hours with the telescope moved by a clockwork drive. A satellite would be a streak on said plate or the stars would be a streak with the satellite as a dot - like this
They found streaks. Could be scratches, but they figured out how to tell the difference between a streak and a scratch real quick. Others looked like stars but moved a little, those are the geostationary orbiting objects. They would have to be big to see them, as geostationary is up there about 22,000 miles.
Mor It looks like this is impossible phenomenon is growing legs. The Russians claim they didn't have anything up there in 1954. "Once you have eliminated the impossible, whatever remains, however improbable must be the truth"
Also, in the news The Pentagon announced it’s opening an office specifically to chase down reports of unidentified flying objects in a press release on Wednesday. It’ll be called the All-domain Anomaly Resolution Office (AARO) and will work to collect and analyze various reports of UFO activity from across America’s various federal agencies.
A lot happened in 1959 Author Curtis Peebles notes that the original "Space Fence" or Space Surveillance System began operations in 1959.[5] The system predated the formation of NORAD and was known as the U.S. Navy Space Surveillance System (or SPASUR or NAVSPASUR).[6] From 1960 until the early 1990s the system was used in conjunction with a network of Baker-Nunn cameras that could see "an object the size of a basketball at 25,000 mi (40,000 km)".[5][7] The system was formerly operated by the U.S. Navy for NORAD from 1961 until October 2004. Initially independent as NAVSPASUR, it was run by Naval Space Command from 1993, and finally by Naval Network and Space Operations Command from 2002 until command was passed to the U.S. Air Force 20th Space Control Squadron on 1 October 2004.[1] In 2009, the operations and maintenance contract for the day-to-day management and operation of the Fence was awarded to Five Rivers Services, LLC, based in Colorado Springs, Colorado. On 30 September 2011, Five Rivers Services was awarded a US$7,022,503 firm fixed price with cost reimbursable line items contract modification to manage, operate, maintain, and logistically support the nine Air Force Space Surveillance System field stations, presumably for Fiscal Year 2012 See Air Force Space Surveillance System - Wikipedia for more and photos of the systems in use/used. This is also one of the reason the ham radio 220 band ws nixed for years.
Seen cameras that were focused and slewed to photo objects in a fixed orbit in early 1960's. Idea was that an object in orbit would appear as a dot, anything in a higher or lower orbit or stars etc would be streaks, Was working telemetry at the time in New Mexico. Know it worked for objects put into space at that time. Cameras were in area with very low light background and in hard places to get to. Some used modified AA gun mounts for tracking and others modified telescope mounts. Some of camera and mounts tracked missile launches also. Hard to remember but used tubes in electronics and film for detection, didn't have the camera chips then. Spent a lot of time developing film and a whole lot of women spent hours looking at it projected on a ground glass screen. When they found something we would blow up that area, make a print, then show it to the bosses. Seems kind of crude today but we put stuff in orbit. First major rocket area was at White Sands and with captured V-2 rockets. A Visit to Spot the V2 Launch Site at White Sands The First Launch of a V-2 Rocket From America | Smithsonian First A Bomb test was not far away. Been there a few times when stationed at Holloman AFB in 1957. Four of us in 4 wd weapons carrier, Dodge, and a very lonely place. Kind of strange place. Spanish called the road that went from Mexico up into Northern New Mexico, the road of death. If you went away from the river you died of thirst, if you stayed on the river, the Indians attacked you. Fitting place for all that the atomic age has brought us. https://www.afnwc.af.mil/About-Us/H...af.mil/About-Us/History/Trinity-Nuclear-Test/