Tag: gps

52 Why would GPS availability be reduced by high demand (or solar eclipse)? 2017-08-06T20:08:43.027

30 How does GPS receiver synchronize time with GPS satellites? 2014-09-23T13:17:20.830

29 Why are the GPS constellation satellites in such a high orbit? 2015-08-30T06:14:09.363

15 How far up have satellites used a GNSS for positioning, and how does the precision degrade with altitude? 2013-07-21T00:25:07.127

15 How are GPS satellite clocks synchronized with each other in the earth's frame of reference? 2016-03-07T14:13:27.697

14 What is the deepest position in space we can get a GPS signal? 2014-10-07T20:20:38.640

13 Can the satellites in Martian orbit be put to use providing a rudimentary GPS system on Mars? 2014-09-29T19:26:59.353

12 Do any spacecraft use GNSS for attitude determination? 2013-07-21T00:30:54.853

12 Will Glonass, Galileo, or BeiDou-2 satellites provide better cis-lunar navigation than GPS? 2016-04-10T09:12:53.260

10 How does GPS work exactly? 2015-01-13T09:50:50.447

9 Current situation with CoCom regulations and GPS receivers for balloons and cubesats 2016-04-07T14:09:43.500

8 Would a GPS receiver with an onboard atomic clock only need 3 satellites to determine position? 2017-06-24T15:46:28.547

7 Is GPS time at least "really close" to TAI (International Atomic Time)? 2017-07-09T09:57:30.070

6 How are artificial satellites of non-Earth celestial bodies positioned? 2014-05-03T09:19:09.293

6 Would a GPS type system on Mars really need a ground station? 2016-02-08T02:34:05.270

6 How far from earth have atomic clocks (or ultra-stable oscillators) been placed and monitored? 2016-04-07T03:35:19.773

6 Did the NASA PhoneSat actually try to use the GPS from the phone itself? 2016-05-03T04:33:23.767

6 How many satellites would be required for Solar System GPS? 2017-04-04T12:59:12.433

6 Inexplicable Offset in Satellite Laser Ranging (SLR) observations 2018-01-03T15:28:24.370

5 TLE and RINEX gps differences 2017-11-02T19:05:39.503

4 Is there any open source software that can compute GPS ground coverage? I need a free alternative to AGI's System Tool Kit (STK) 2014-04-07T21:55:38.177

4 Why do gps satellites rotate over the Earth 2014-09-23T19:51:05.917

4 How does GPS module gets time even before a fix? 2016-02-07T23:28:00.077

4 How does a cell phone GPS receiver work without an onboard atomic clock 2016-10-06T22:33:23.973

4 Why not use a rotorcraft drone or quadcopter using GPS navigation to live stream SpaceX booster landings on the droneship? 2017-03-31T15:57:36.283

4 GPS Receiver Autonomous Integrity Monitoring (RAIM) - parity space method 2017-08-05T15:12:24.630

3 Does GPS work at ISS? 2013-10-06T10:31:05.903

3 GPS constellation for Mars 2016-02-05T19:52:55.473

3 What is the magnetic equatorial anomaly and how is GAGAN unique in its ability to compensate? 2017-05-06T02:17:42.643

3 Initial condition for SGP4 in satellites without GPS, before the uplink of TLE data 2018-01-08T01:20:08.200

2 Ground longitude/latitude under a satellite (cartesian coordinates) at a specfic epoch 2016-08-25T11:31:06.233

2 How can the CYGNSS spacecrafts (actually) measure ocean roughness? 2016-11-12T17:28:22.917

2 Height of navigation satellites above Earth 2017-03-09T10:49:34.103

2 PRN number in TLE files are the same in RINEX files? (in GPS constellation) 2017-03-30T20:40:33.270

1 Would GPS work above the GPS satellites? 2015-08-03T12:02:24.810

1 Do GPS receivers use trilateration or distances between satellites? 2016-01-03T01:44:39.427

1 Has GPS been used beyond GEO? 2016-04-10T08:43:17.400

1 3D modelling of satellites around the earth 2017-05-03T12:34:09.937

1 How to get velocity vector from GPS NMEA data? 2018-03-03T17:40:05.493