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Search: Posts made by: Marcelo Pacheco
Forum: sci.geo.satellite-nav (Global Satellite Navigation) June 28th 15, 05:04 AM Posted to sci.geo.satellite-nav
Replies: 3
Views: 637
Posted By Marcelo Pacheco
eLoran Progresses Toward GPS Back-Up Role in U.S., Europe

On Saturday, June 27, 2015 at 7:00:30 PM UTC-3, Alan Browne wrote:
On 2015-06-25 13:39, Sam Wormley wrote:

Guard commanding officer at the former Loran station. "A prudent
mariner...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) December 8th 14, 02:54 AM Posted to sci.geo.satellite-nav
Replies: 5
Views: 744
Posted By Marcelo Pacheco
optimum cutoff mask

On Saturday, December 6, 2014 12:38:51 PM UTC-2, Frank wrote:
Is there an optimum number of degrees to use in the cutoff mask? I use 5 degrees, and always kind of wonder if I may be degrading my...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) September 30th 14, 09:11 AM Posted to sci.geo.satellite-nav
Replies: 0
Views: 374
Posted By Marcelo Pacheco
Real reason for OCX control of GPS IIA birds

To allow for keeping NDS functional in IIA birds, so NDS can be shutdown on IIR/IIR-M birds on the same orbital slot, in order to save battery life. Anybody has any information about this as a reason...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) September 17th 14, 03:36 PM Posted to sci.geo.satellite-nav
Replies: 27
Views: 1,313
Posted By Marcelo Pacheco
Galileo Sat 5 and 6 launched

On Wednesday, September 17, 2014 8:15:51 AM UTC-3, Hans-Georg Michna wrote:
On Wed, 17 Sep 2014 01:34:22 -0700 (PDT), Marcelo Pacheco wrote:



since those 2 birds are on a wildly wrong...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) September 17th 14, 09:34 AM Posted to sci.geo.satellite-nav
Replies: 27
Views: 1,313
Posted By Marcelo Pacheco
Galileo Sat 5 and 6 launched

On Monday, September 15, 2014 7:25:41 AM UTC-3, Hans-Georg Michna wrote:
On Fri, 12 Sep 2014 09:48:16 +0200, Joop

" wrote:



Information about the...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) September 5th 14, 01:19 AM Posted to sci.geo.satellite-nav
Replies: 27
Views: 1,313
Posted By Marcelo Pacheco
Galileo Sat 5 and 6 launched

On Wednesday, August 27, 2014 1:25:16 PM UTC-3, Alan Browne wrote:
Yep. So now the insurance collective will try to reduce their loss by
"proving" the satellite is still very useful (or...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) August 25th 14, 04:37 PM Posted to sci.geo.satellite-nav
Replies: 27
Views: 1,313
Posted By Marcelo Pacheco
Galileo Sat 5 and 6 launched

On Monday, August 25, 2014 5:13:45 AM UTC-3, Terje Mathisen wrote:
On Sunday, August 24, 2014 9:49:39 AM UTC-5, Hans-Georg Michna wrote:

The Samsung Galaxy S5 apparently has the best GPS...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) August 23rd 14, 07:24 PM Posted to sci.geo.satellite-nav
Replies: 27
Views: 1,313
Posted By Marcelo Pacheco
Galileo Sat 5 and 6 launched

Bad news ! Those satellites ended up in the wrong orbit.
Galileo is orbits a 55.040 deg, 23,522 km circular
But the two birds ended up at: 49.69 deg, 13,721-25,918 km orbits
Back of the...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) August 23rd 14, 07:21 PM Posted to sci.geo.satellite-nav
Replies: 27
Views: 1,313
Posted By Marcelo Pacheco
Galileo Sat 5 and 6 launched

Bad news ! Those satellites ended up in the wrong orbit.
Galileo is orbits a 55.040 deg, 23,522 km circular
But the two birds ended up at: 49.69 deg, 13,721-25,918 km orbits
Back of the envelope...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) June 25th 14, 03:57 AM Posted to sci.geo.satellite-nav
Replies: 4
Views: 358
Posted By Marcelo Pacheco
FCC to Fine Chinese Jammer Retailer $34.9M for Online U.S. Sales

On Tuesday, June 24, 2014 7:36:28 PM UTC-3, Alan Browne wrote:
Good. But they should really find the retailers in the US and hit them too.
I bet the vast majority of sales are online direct to...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) May 17th 14, 10:37 AM Posted to sci.geo.satellite-nav
Replies: 2
Views: 365
Posted By Marcelo Pacheco
Russia threatening US with withdrawal of MK-33 and RD-180 engines

Sounds like a lot of posturing, what Russia doesn't want another billion American dollars ?

Plus ULA already stated they have a two year stockpile of RD180s.

Orbital Sciences uses NK33 for the...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) April 30th 14, 03:11 AM Posted to sci.geo.satellite-nav
Replies: 8
Views: 545
Posted By Marcelo Pacheco
ULA block buy leads to fast GPS launches ?

Finally, SpaceX is on the cusp of retrieving it's first stage booster, should happen this year. All launch costs assume no reusability. Yet the first stage is designed for refuel and relaunch, and...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) April 30th 14, 12:03 AM Posted to sci.geo.satellite-nav
Replies: 8
Views: 545
Posted By Marcelo Pacheco
ULA block buy leads to fast GPS launches ?

If Congress decided today to change and to move some or all of the
business to SpaceX you wouldn't see a first SpaceX GPS launch until
close to 2020. And the first would likely be a dummy...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) April 28th 14, 02:44 PM Posted to sci.geo.satellite-nav
Replies: 8
Views: 545
Posted By Marcelo Pacheco
ULA block buy leads to fast GPS launches ?

On Sunday, April 27, 2014 4:42:41 PM UTC-3, Alan Browne wrote:
On 2014.04.26, 23:47 , Marcelo Pacheco wrote:
On Saturday, April 26, 2014 9:54:07 PM UTC-3, Alan Browne wrote:
Please show...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) April 27th 14, 04:47 AM Posted to sci.geo.satellite-nav
Replies: 8
Views: 545
Posted By Marcelo Pacheco
ULA block buy leads to fast GPS launches ?

On Saturday, April 26, 2014 9:54:07 PM UTC-3, Alan Browne wrote:
Please show where they are off plan (not where they are off pace).

Of course I can't. But from 2010 through 2013 just 4 GPS birds...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) April 27th 14, 01:37 AM Posted to sci.geo.satellite-nav
Replies: 8
Views: 545
Posted By Marcelo Pacheco
ULA block buy leads to fast GPS launches ?

Interesting...
I was hearing a launch segment bottleneck preventing GPS launches. If we got one launch every 15 months we were lucky.
So SpaceX comes along, shows a viable alternative to ULA rockets...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) January 5th 14, 06:50 PM Posted to sci.geo.satellite-nav
Replies: 6
Views: 445
Posted By Marcelo Pacheco
Russian GLONASS monitoring stations all but barred in US

On Sunday, December 29, 2013 2:35:42 PM UTC-2, Alan Browne wrote:
http://www.nytimes.com/2013/12/29/world/europe/new-law-all-but-bars-russian-gps-sites-in-us.html?ref=technology



The law...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) July 16th 13, 01:56 AM Posted to sci.geo.satellite-nav
Replies: 6
Views: 470
Posted By Marcelo Pacheco
Parts installed “upside down” caused Russian rocket to explode last week

Agreed, however there's something to be said about the drinking problem in Russia.
It affects everything they do. Much like there's much to be said for the lazyness/lack of ethical problem of Latin...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) July 4th 13, 06:27 PM Posted to sci.geo.satellite-nav
Replies: 19
Views: 721
Posted By Marcelo Pacheco
Congress Slashes Civil GPS Funding

On Tuesday, July 2, 2013 3:32:55 AM UTC-3, miso wrote:
The problem is someone needs to sort out the winning products. Just

think of how many people have claimed to make such and such a...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) May 5th 13, 08:53 PM Posted to sci.geo.satellite-nav
Replies: 17
Views: 1,023
Posted By Marcelo Pacheco
Air Force Examining Broader Options for Next GPS III Satellite Buy

Em quinta-feira, 2 de maio de 2013 19h03min30s UTC-3, Alan Browne escreveu:
On 2013.05.02 17:20 , Marcelo Pacheco wrote:

Em quarta-feira, 1 de maio de 2013 04h08min26s UTC-3, miso

...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) October 13th 12, 04:27 PM Posted to sci.geo.satellite-nav
Replies: 10
Views: 556
Posted By Marcelo Pacheco
GPS+Galileo+Falcon 9 3 for 3, yeay !

On Saturday, October 13, 2012 9:30:17 AM UTC-3, Alan Browne wrote:
On 2012.10.12 19:34 , wrote:

Dragon docked with the ISS, Falcon 9 didn't deliver ORBcomm precisely due...
Forum: sci.geo.satellite-nav (Global Satellite Navigation) August 17th 12, 10:28 PM Posted to sci.geo.satellite-nav
Replies: 11
Views: 816
Posted By Marcelo Pacheco
Thoughts on GPS/GNSS from the CGSIC Meeting Held Earlier this Week

http://www.gpsworld.com/survey/thoughts-gpsgnss-cgsic-meeting-held-earlier-week-13351
By: Eric Gakstatter

....
4. Of the 12 Block IIF GPS satellites being built, two are in orbit with the first...
Showing results 1 to 22 of 22

 
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