---
name: "predict-g1yyh"
section: "1"
platform: "linux"
package: "predict"
version: "2.2.3-4+b2"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/predict-g1yyh"
---

# predict-g1yyh(1)

satellite tracking program

## NAME

predict-g1yyh - satellite tracking program

## DESCRIPTION

The  **predict-g1yyh** program is a variant on the  **predict** satellite tracking program that includes patches from John Heaton, G1YYH,  that add new functionality.  This man page documents only the features that differ between  **predict** and **predict-g1yyh.** See the  **predict** man page for information on the features of the program that are not described here!

The user may step forwards/backwards through the satellites in the Single-Sat  display using the '+' and '-' keys, and may remove blank entries from the  Selector page.

MultiSat has been reformatted to display upcoming passes below the satellites  in view. Using the 'i' and 'k' keys you can toggle between distances in  Imperial or Kilometres.   Using the 'l' and 'm' keys you can toggle between displaying the normal  latitude/longitude or Maidenhead locators for the sub-satellite location.

The SingleSat display allows use of the arrow keys to change the frequency up/down and to move to the next/previous satellite using left/right arrows.

A new method of selecting satellites is implemented.  Instead of pressing a character next to a satellite name, a scrolling menu is provided. This means that the program is now capable of handling a much larget list of satellites, currently a maximum of 250.

Finally, the height of the terminal window containing predict can be increased dynamically if you want to display more information than will fit on an 80x24 terminal window!

## SEE ALSO

[**predict**(1)](/predict/1.md),\

## AUTHOR

This manual page was written by Bdale Garbee \<bdale@gag.com\>, for the Debian GNU/Linux system (but may be used by others).
