PrediSat

PrediSat is an Android app that grabs Iridium flare and satellite pass data from Heavens-Above.com and formats it for the small screen of the phone. It also includes a few features to make satellite watching easier, such as alerts, countdowns, and night mode.

Links

PrediSat in Android Market (Android-only link)
PrediSat Pro in Android Market (Android-only link)
PrediSat on AppBrain
PrediSat Pro on AppBrain
Heavens-Above (the source of satellite data for PrediSat)

Pro version

The Pro version adds some advanced features on top of what is available in the free version. It may also include early features that will later be added to the free version.
Price is $1 (USD).

Current Pro-only features:

• Ads are disabled by default and can be toggled.
  
• Multiple alert times can be set, space separated.
  
• Text-To-Speech alerts (optional).
  
• Alerts automatically created based on custom magnitude when list is loaded with new data (optional).
  
• Sightings log.
  

Changelog

^ = Based on error report from a Froyo user
Dates are based on GMT.

v1.0.6 [2010-10-14]

• Initial release of Pro.
• Fixed: Countdown timer way off after orientation change.
  
• Pro: Sightings log.
  
• Pro: Alerts automatically created based on custom magnitude when list is loaded with new data.
  
• Fixed: Back button not working as expected in web view.
  
• Changed: Night mode uses color filtering instead of replacing graphics with plain colors.
  
• Changed: Ad manager is AdWhirl, which provides much more flexibility with multiple ad networks.
  
• Pro: Text-To-Speech alerts.
  
• Pro: Multiple alert times can be set, space separated.
  
• Pro: Ads are disabled by default and can be toggled.
  
• Fixed: Detection of existing alerts with certain differences in data, alert is updated when required.
  
• Fixed: Value shown in title of 'Alert time' preference stacking when changed.
  

v1.0.5 [2010-09-24]

• Added: Alert time preference shows the current setting in it's title.
  
• Changed: Alert lists are sorted by event time instead of order they were added.
  
• Added: Description on Timezone preference clarifying that it is the standard GMT offset.
  
• Added: Menu option on main screen to toggle night mode.
  
• Added: Menu options in Alerts view to clear either list.
  
• Workaround: Detect incompatible alerts at launch and delete along with cache, preventing crash after version upgrade.
  
• Fixed: Detection of existing alerts created in different list instances.
  
• Added: Alerts can be removed through event lists.
  
• Changed: Events can be added to alerts even if alerts are currently disabled.
  
• ^Workaround: If invalid GPS coordinates received, show error instead of crashing.
  
• Added: Toast notification at alert trigger.
  
• Improved: Notification timer is much more efficient, using a native method instead of a very bloated and often buggy countdown.
  
• Added: Try setting timezone automatically at launch if not set.
  
• Fixed: Error when parser encounters trimmed/optimized HTML. (Thanks to SkepticBarista!)
  
• Fixed: Expired alerts being triggered on service modification/start if alert time is set to 0.
  

v1.0.4 [2010-09-02]

• Fixed: Event timer timezone not being calculated properly for timezones different from phone.
  
• Improved: Significantly reduced possibility of alerts being skipped because of lag.
  
• Workaround: If parser runs into problem, show error and try loading cache instead of crashing.
  

v1.0.3 [2010-08-31]

• Added: Save coordinates when opening preferences.
  
• Fixed: Alert time not applying to existing alerts when changed.
  
• ^Fixed: Crash when both pass periods are selected and one of them returns no passes.
  
• ^Fixed: Crash when alert is triggered and ringtone was not configured.
  
• Fixed: DST sometimes being 'forgotten' while running in background as service.
  

v1.0.1 and v1.0.2 [2010-08-28]

• Fixed: Two crash bugs in the web browser.
  

v1.0.0 [2010-08-28]

• Initial release to the Android Market!
  

Started development on 2010-06-29

Future releases

Feature requests

Feature requests are given strong consideration and if accepted they are given higher priority than other features of similar importance.
This list also includes features that were already in the internal to-do list when they were suggested.
Versions for feature releases are only preliminary and may change.

Suggestion	Suggested by	Through	Version	Notes
Option for white background	revmikeblack	AppBrain	v1.0.7	Part of planned feature: Custom colors
Automatically clear alerts that have completely passed	Rick	Email	v1.0.7
Date in satellite passes list	Rick	Email	v1.0.7
Preference for delayed alert removal	Rick	Email	v1.0.7	Sub-feature for automatic clearing of passed alerts
"Quiet hours" to disable alerts between certain times of day	Rick	Email	v1.0.7
Custom action when tapping list item	SuM_WuN	Mumble	v1.0.7
Indication of download progress	SuM_WuN	Mumble	v1.0.7
Menu option to add alert while viewing in browser	SuM_WuN	Mumble	v1.0.7
Condense list to most important details, touch for more info	BZWingZero	IRC DM	v1.1.0
Daytime passes	Phil	Market comment for Pro	v1.1.0	Part of planned feature: More filter options
Compass direction in status bar	SuM_WuN	Mumble	v1.1.0

Known issues

• Alerts set before a DST change that are scheduled to go off after the change are sometimes off by an hour.
  
• Some elements aren't changed to red in night mode.
  
• GPS sometimes doesn't work while airplane mode is enabled. Might be a phone or OS specific issue.
  
• Clock is often off by more than a few seconds even when synchronized with carrier. Planned solution: Use an NTP server.
  
• DST used is same as phone, so time is inaccurate if configured for a timezone currently using a different DST offset.
  
• Timezone detection is extremely limited due to inconsistency between definitions in Java and Heavens-Above.
  
• ^Error only reported on Pro, but could be in both versions: RuntimeException: Unable to start activity - NullPointerException at com.pilot51.predisat.List.onCreate(List.java:118)