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Ny version av Predict

Det har kommit en ny version av Predict. Fljande info frn ANS:

PREDICT version 2.2.2, a satellite tracking and orbital prediction application for the Linux and Unix operating systems, has been released. This release corrects several small bugs and adds several new features over the previous version. Some of the important changes include:

* Fixed a bug that caused GET_SAT (UDP socket) requests to fail after GET_DOPPLER requests were issued. (Tnx: KF6RFX)

* Fixed a bug in earthtrack where latitude and longitude options sent to xplanet were reversed under certain circumstances. (Tnx: ZL2BSJ)

* earthtrack has been modified to work with xplanet version 1.0 and later. Compatibility for versions of xplanet prior to 1.0 is retained through an earlier version of earthtrack that has been moved into an old_version directory.

* Orbital phase, eclipse depth, and squint angle data has been appended to the information returned to UDP client applications in response to the GET_SAT command.

* Moon tracking code was replaced with a more precise algorithm based on Meeus method.

* Added a lunar prediction mode that predicts passes of the Moon.

* Added a solar prediction mode that predicts passes of the Sun.

* Added MoonTracker , a small utility that runs in the background and directs an AZ/EL antenna array toward the position of the Moon (for EME communications).

* The Moon s declination, Greenwich hour angle, and right ascension have been appended to the information returned to UDP clients in response to the GET_MOON command.

* The Sun s declination, Greenwich hour angle, and right ascension have been appended to the information returned to UDP clients in response to the GET_SUN command.

* PREDICT now returns orbital data in NASA Two-Line format to UDP clients in response to the GET_TLE command.

* Added a new UDP socket command (GET_MODE) to return PREDICT s current tracking mode (single, multi, none) to networked clients. If PREDICT is operating in Single Satellite tracking mode, then the name of the satellite currently being tracked is returned by GET_MODE.

* In Main Menu option [G] (Edit Ground Station Information), ground station latitude and longitude may now be entered in degree, minute, second (DMS) format in addition to decimal degrees.

* The vocalizer feature was dramatically improved. Sound samples are now read from ubiquitous .wav files, making it easier for users to create samples of their own, even in languages other than English. PREDICT now articulates numeric values in their entirety (i.e.: three hundred forty nine 😉 instead of articulating each digit individually ( three four nine 😉 as was done previously. Alarms and additional announcements were added to alert a visual observer when a spacecraft is visible, when it enters into sunlight, and when it enters into eclipse.

* Added fodtrack , written by Luc Langermann, LX1GT. This utility permits AZ/EL antenna control using the Fodtrack hardware interface via the parallel port.

* Added titles to windows when PREDICT is run under X.

* The latest version of gsat (1.1.0) has been included.

* Several other coding changes were made. Linux-specific code was removed in an effort to allow easier compilation under FreeBSD, MacOS X, and other Unixes in general.

* PREDICT s main menu was expanded to handle the additional program options. The main menu also now displays the text Server Mode when the program is invoked in socket server mode (-s).

* Program documentation was updated.

PREDICT may be downloaded from:

http://www.amsat.org/amsat/ftp/software/Linux/predict-2.2.2.tar.gz

PREDICT hemsida

Klla: ANS 180

By SM0TGU

Webmaster and member of the AMSAT-SM steering group.

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