Observation record / NASA 科学动态

Software

First seen 10/20, 02:31 · Last observed 10/21, 03:35 · Source data is current

Source excerptResearch teams at NASA’s Glenn Research Center are involved in developing theory and software to predict the noise from aircraft engines.

Why it mattersA first-party publication from NASA 科学动态, useful for checking the original wording of public policies, data or events.

Published 10/20, 02:11

30 minutesRank movement—

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1 hourRank movement—

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24 hoursRank movement—

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Publication position history

26 observations

Publication feed in source order. Position changes do not count as heat or momentum.

NASA public information; third-party exceptions· Author L. Danielle Koch

View original observation times and ranks

Observation time (Beijing)	Source position
10/21, 03:35	10
10/21, 02:35	10
10/21, 01:35	9
10/21, 00:34	9
10/20, 23:34	8
10/20, 22:34	6
10/20, 21:34	5
10/20, 20:34	5
10/20, 19:34	5
10/20, 18:34	5
10/20, 17:33	5
10/20, 16:33	5
10/20, 15:33	5
10/20, 14:33	5
10/20, 13:33	5
10/20, 12:33	3
10/20, 11:33	3
10/20, 10:33	3
10/20, 09:33	2
10/20, 08:32	2
10/20, 07:32	2
10/20, 06:32	2
10/20, 05:32	2
10/20, 04:32	2
10/20, 03:32	2
10/20, 02:31	1

Daily aggregate history

日期	Best daily position	Last daily position	Observations
2026-10-20	1	8	22
2026-10-21	9	10	4