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ISS protocol Space Debris, Space Junk:
The routine ground-based radar and optical measurements performed by the space surveillance systems of the United States and Russia tracking, correlates and cataloguing all objects larger than 5 to 10 cm in low Earth orbit, and larger than 0.3 to 1.0 m at geostationary orbit altitudes (35 700 km above the equator).
Orbits of debris objects that are large enough to be contained in the US Space Surveillance catalogue can be predicted and compared with the ISS orbit to determine whether a close approach will occur.
Assuming that both orbits can be determined with sufficient accuracy, then a predicted fly-by, or conjunction, distance can be translated into a specific in-orbit collision risk.
If this risk exceeds the ISS threshold level, as set under the ISS flight rules, then the Station performs an avoidance manoeuvre by using the engines of ESA’s Automated Transfer Vehicle (ATV).
As you can see in the first video, the ISS did not performed any manoeuvre to avoid the approaching object which means NASA and the ISS crew were unaware of this large object, and, given the speed and path of the object which seems to come from outer space, whether a UFO, meteor or other space anomaly, you can guess what would have happened if the ISS get a direct hit from the object.
On November 5, 2015 the ISS HD cam captured several other unknown space anomalies/ufos again which you can see in the next two videos.
Check out more contributions by Jeffery Pritchett ranging from UFO to Bigfoot to Paranormal to Prophecy