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16th Jul 2019, 20:44
Replies: 26
Views: 14,356
Posted By SysDude

Yes, we are in agreement. The almanac data...

Yes, we are in agreement. The almanac data provides a coarse spacecraft position, while the ephemeris data is finer and includes clock corrections.

Since the telemetry is embedded in the...
16th Jul 2019, 16:58
Replies: 26
Views: 14,356
Posted By SysDude

Careful with the apps. Some will paint the...

Careful with the apps. Some will paint the location on the skymap based on a database, not the actual signals.

I am currently decoding both E1 and E5 telemetry but the usability flags are most...
16th Jul 2019, 00:29
Replies: 26
Views: 14,356
Posted By SysDude

Ground Failure

Any upload that corrupts the spacecraft or payload software, or commands an inadvertent shutdown, is a "ground issue". I suppose that malicious uploads and jamming fall into this category, but I...
1st Jul 2019, 02:39
Replies: 30
Views: 19,643
Posted By SysDude

Ethnicity

ve3id brought up an excellent point about ethnicity. To be clear, the article is about locality, not ethnicity; employees within the supply chain from India are producing "some" aircraft code...
30th Jun 2019, 23:27
Replies: 30
Views: 19,643
Posted By SysDude

I pointed to the article in the OP, but I can't...

I pointed to the article in the OP, but I can't read it for you. HCL was mentioned extensively in the article. The article states that Indian SW engineers are used in the supply chains and quotes...
30th Jun 2019, 16:40
Replies: 30
Views: 19,643
Posted By SysDude

This analysis breaks down wages and other factors...

This analysis breaks down wages and other factors by country:https://towardsdatascience.com/comparison-of-software-developers-in-india-with-us-uk-germany-and-the-entire-world-8d2a1ba3218a

I ran...
30th Jun 2019, 09:02
Replies: 30
Views: 19,643
Posted By SysDude

ThreeThreeMike: Please provide finer granularity...

ThreeThreeMike: Please provide finer granularity on your wage assertions, rather than throwing darts. I summarized the article in my view, perhaps incorrectly. I am the messenger. I would love it if...
30th Jun 2019, 08:14
Replies: 30
Views: 19,643
Posted By SysDude

Futurama: Slow down.... the article clearly...

Futurama: Slow down.... the article clearly states that there were no Indian engineers in the MCAS development.

You have also stated, with numbers, that this is a potential systemic problem across...
30th Jun 2019, 06:40
Replies: 30
Views: 19,643
Posted By SysDude

$9 Per Hour Code in Boeing Jets

I haven't seen this posted here yet: https://finance.yahoo.com/news/boeings-737-max-software-outsourced-204657048.html

In short, they felt that they didn't need senior engineers on mature...
30th Oct 2018, 04:56
Replies: 2,100
Views: 1,139,917
Posted By SysDude

Agreed. Some of the plots I've seen included the...

Agreed. Some of the plots I've seen included the obvious data outliers.
15th Oct 2018, 01:01
Replies: 289
Views: 140,269
Posted By SysDude

Regardless of water damage, the data is...

Regardless of water damage, the data is recoverable.

My evidence is anecdotal, but I have recovered "water resistant" equipment soaked in 50-100 ft salt water before.

When I was a radio...
19th Sep 2018, 22:01
Replies: 45
Views: 8,735
Posted By SysDude

"Simple explanation - someone said to the...

"Simple explanation - someone said to the painter, "F off". And Bob's yer uncle."

Best one!
18th Sep 2018, 00:28
Replies: 4
Views: 6,137
Posted By SysDude

Talking They have a "striking" resemblance to the MD-11s...

They have a "striking" resemblance to the MD-11s implementation, don't they?
4th Aug 2018, 05:12
Replies: 31
Views: 11,814
Posted By SysDude

Bats in the Belfry

He was chasing bats in the belfry and found toys in the attic!
4th Jun 2016, 02:19
Replies: 1,184
Views: 2,494,664
Posted By SysDude

"Aircraft to aircraft exchange of data packages...

"Aircraft to aircraft exchange of data packages has always seemed logical to me."

Loose Rivets: You are describing an implementation of "mesh networks". The technology I am familiar with has...
26th May 2016, 15:04
Replies: 1,184
Views: 2,494,664
Posted By SysDude

Capry - The article was clear that it was...

Capry -

The article was clear that it was an ELT, which floats, sends a radio frequency beacon, and is detectable by satellite, unlike a ULB.

They are using the ELT to focus the search for the...
26th May 2016, 14:35
Replies: 1,184
Views: 2,494,664
Posted By SysDude

ELT Signal Detected

Per the WSJ an ELT signal was picked up by satellite and that is why they have localized the search area to where they are now.
24th May 2016, 22:33
Replies: 1,184
Views: 2,494,664
Posted By SysDude

Seems like some more info is about to drip.......

Seems like some more info is about to drip.... maybe some raw ACARS data too?

https://www.yahoo.com/news/greece-start-key-data-handover-egyptair-crash-wednesday-145904171.html?nhp=1
24th May 2016, 16:20
Replies: 1,184
Views: 2,494,664
Posted By SysDude

Good question T28B, I see what you are getting...

Good question T28B, I see what you are getting at. Other pilots on this forum have indicated that the area has marginal VHF voice coverage.

If the ACARS data is transmitted VHF-only, and all of...
24th May 2016, 01:45
Replies: 1,184
Views: 2,494,664
Posted By SysDude

WSJ article on mis-handling of debris: ...

WSJ article on mis-handling of debris:

EgyptAir Crash: Safety Experts Voice Fears Over Flight 804 Evidence - WSJ...
20th May 2016, 19:29
Replies: 1,184
Views: 2,494,664
Posted By SysDude

On May 20th 2016 The Aviation Herald received...

On May 20th 2016 The Aviation Herald received information from three independent channels, that ACARS (Aircraft Communications Addressing and Reporting System) messages with following content were...
Forum: North America
19th May 2015, 02:17
Replies: 80
Views: 22,769
Posted By SysDude

Nimrod tampering with wiring in cabin

First, if I saw this nimrod tampering with the wiring next to me I would probably club him to death with my cellphone or laptop, and probably have a dozen helpers. This guy needs to be placed on the...
Forum: North America
19th Jan 2015, 00:49
Replies: 21
Views: 4,057
Posted By SysDude

Runway Incursion at JFK

ABC news reported a runway incursion at JFK.

The takeoff was then delayed for 3 hours while the cockpit crew changed their shorts (my interpretation).

JetBlue: Flight Forced to Abort Takeoff...
15th Jan 2015, 22:49
Replies: 3,924
Views: 3,791,824
Posted By SysDude

Ditching is survivable

The "first" commercial jet to ditch in the open ocean: alm flight 980

ALM Flight 980 - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/ALM_Flight_980)
...
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