Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with navigation
Search options not deleted
user 37480
Topics that relate to orbit determination and flight path control. May also be used for navigation on the surface of celestial objects.
23
votes
Accepted
Why does the Global Positioning System include particular numbers of satellites?
They designed the numbers and orbits that met a set of requirements:
Small number of satellites.
Need 4 satellites to be in view to get the accuracy they required. In reality they need more than 4 to …
- 1,219