According to the recent news, two satellites mission got failed. These two satellites were the infrared astronomical satellite, which is short for IRAS, and the other one is the gravity gradient stabilization experiment known as GGSE 4 for short. These two got past each other according to the prior news on the evening of January 29. Above from Pittsburgh Pennsylvania, around 560 miles or 900 kilometers.
According to the latest calculations, which was actually given by California based satellite, which actually tracks the company leolabs, these two defunct craft will be just from 43 feet to around 285 feet, which is basically 13 to 87 meters, this was actually taking place around 6:39 pm EST. That calculation also tells the possibility of a collision between GGSE 4 and IRAS with just 0.1%. Jonathan McDowell who is an astronomer at the Harvard Smithsonian center which is for astrophysics who basically monitors Manu of the objects circling earth which uses publicly available US tracking data, he actually said on this situation that”I would expect it to be comparable to, but maybe not quite as bad as, the Iridium-Kosmos collision in 2009.”
The crash of February 2009 actually involved the operational iridium about 33 communications satellite and also the defunct kosmos 2251 Russian military craft. It actually spawned approximately 1800 pieces of the trackable debris by the till October. McDowell actually told the space.com that”So you would see, maybe not thousands of pieces of trackable debris, but at least hundreds.”
GGSE 4 is actually weighted 85 kilograms or 190 lbs, which is less than IRAS, which is around 1090 kilograms or 2400 lbs. McDowell further said that “And that’s unfortunate because the sun-synchronous orbit is where everyone wants to be, So, there’s a bunch of satellites in that altitude range and orbit.” It also includes the weather as well as spy satellites, which took advantage of the consistent lighting.