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> In its first 530 days of scientific observations, DAMPE detected 1.5 million cosmic ray electrons and positrons > "we now expect it to last 5 years" > That
by piotrkaminski 9y ago
> In its first 530 days of scientific observations, DAMPE detected 1.5 million cosmic ray electrons and positrons
> "we now expect it to last 5 years"
> That will allow the satellite to record more than 10 billion cosmic ray events.
Assuming DAMPE continues detecting cosmic ray events at its current rate, I think the total number after 5 years would be a bit over 5 million. That's a few magnitudes off of 10 billion... Math fail, or do I misunderstand something?
1.5m / 530d * 5y * 365d/y = 5.165m
- yuvalr1 9y agoYour first quotation should go: > In its first 530 days of scientific observations, DAMPE detected 1.5 million cosmic ray electrons and positrons above a certain energy threshold So presumably the total number of recorded events is more than 1.5 million.
- e2e8 9y agoFrom the paper: During these ∼530 days of operation, DAMPE has recorded more than 2.8 billion cosmic ray events, including ∼ 1.5 million CREs above 25 GeV.
- piotrkaminski 9y agoAh, makes sense now -- should've gone to the source instead of trusting the article to summarize all numbers. Thanks!