App för tidsbestämning av ockultationer
Posted: 2015-09-23 17:52:20
Hittade den här gratisappen på Google Play: Occult Flash Tag ver. 0.2 (Upphovsman Erick Couto). Vet inte hur den fungerar i praktiken, men klistrar in instruktionen nedan. Erick Couto kan också nås på en e-postadress som anges i informationen till appen.
"Occult Flash Tag
Infogar en exakt tidsstämpel på astronomiska videofilmer med hjälp av telefonens blixt
This app uses the phone’s flash to mark the first and the last frame of a video with high accuracy (milliseconds). It is mainly used for analog cameras that do not have a device for timing the video while recording.
Just pick two schedules (UTC) prior to the event to be observed, a few minutes before- and a few minutes later. In time, the camera turns on the flash and the CCD censor coupled to the telescope will record a high brightness frame (white) easily detectable later.
The precise time will be shown in the app after the NTP checking.
How to use:
1 – Start record the video
2 - Set the start/end time in the app for a few minutes before the occultation
3 - Place the device near the telescope tube (front), with the flash pointed at a mirror
4 – Press the start button and wait
5 – After recording the video, store the values shown in the app in the audit field
Then just select the frames with high brightness. They will match the schedule indicated in the app with millisecond precision.
The app is open-source (Apache Licence 2.0) and developers are welcome.
Erick Couto"
Edit - Länk: https://play.google.com/store/apps/deta ... ltflashtag
"Occult Flash Tag
Infogar en exakt tidsstämpel på astronomiska videofilmer med hjälp av telefonens blixt
This app uses the phone’s flash to mark the first and the last frame of a video with high accuracy (milliseconds). It is mainly used for analog cameras that do not have a device for timing the video while recording.
Just pick two schedules (UTC) prior to the event to be observed, a few minutes before- and a few minutes later. In time, the camera turns on the flash and the CCD censor coupled to the telescope will record a high brightness frame (white) easily detectable later.
The precise time will be shown in the app after the NTP checking.
How to use:
1 – Start record the video
2 - Set the start/end time in the app for a few minutes before the occultation
3 - Place the device near the telescope tube (front), with the flash pointed at a mirror
4 – Press the start button and wait
5 – After recording the video, store the values shown in the app in the audit field
Then just select the frames with high brightness. They will match the schedule indicated in the app with millisecond precision.
The app is open-source (Apache Licence 2.0) and developers are welcome.
Erick Couto"
Edit - Länk: https://play.google.com/store/apps/deta ... ltflashtag