Overall:
In all, the article is pretty mundane. Nothing in here is all that interesting or surprising. It also doesn't make sense that the Authority would put this thing in space. It would be way cheaper to just bury it in a hole out in the middle of nowhere.
This article needs some kind of twist to get the reader's attention. Something that builds upon the established concept.
Notes:
I think it would be helpful if you give the reader a chart to explain how loud different levels of decibels are for normal sounds.
You also switch between present and past tense a few times. Be careful to stay consistent when applicable.
The walls of RPC-XXX is to be reinforced
"is" -> "are"
RPC-XXX is to be monitored on a daily basis to ensure that the object maintains it's orbit away from Earth re-entry point.
"it's" -> "its"
Any signs of RPC-XXX's re-entry is to be reported
"is" -> "are"
In the event that a shuttle is approaching RPC-XXX, a messaged is to be sent a message to cease and desist their current course.
This sentence is a bit messed up.
RPC-XXX's anomalous effects are manifest by continuously playing music with no regard for battery life or environment.
This sentence is clunky. I would change it to something like "RPC-XXX's anomalous property is that it continuously plays music…"
The music played by RPC-XXX are commonly
"are" -> "is"
RPC-XXX in the time of activation RPC-XXX will continually play the same song
I'm not really sure what this is supposed to mean. Should be reworded to be a bit more clear.
And testing for unit conversion in the event that one turns the volume now commenced.
Get rid of the "And" at the beginning of this sentence. If you want, you could replace it with something like "Furthermore, …"
testing for RPC-XXX has postponed
I would change this to "testing for RPC-XXX had been postponed".
This was especially interesting as this instance records a song that did not exist from the discovery of the cassette player, further records are necessary.
This is a run-on sentence. It should be broken up into two sentences at the comma.
any instrument use to measure it
"use" -> "used"
RPC-XXX's containment protocols is currently under revision
"is" -> "are"
operating under an even rapid increase system
"even rapid" -> "even more rapid"
It has come to my attention that due to recent events that the designation of RPC-XXX from registered item to Lesser Anomalous Object would be completely inappropriate. Because of recent events, I advise that the designation of RPC-XXX change from Alpha-Yellow to Alpha-Purple due to its anomalous capabilities presenting the object being capable of even destroying internal infrastructure.
You say "recent events" twice here and it is a bit repetitive.
