You succeed finally. Thanks!HK.Raymond.Tse 寫:Dear all,
With the input from Angus Lau and the tremendous assistance from Kenneth Yan, we are able to present the real-time weather charts of Remote Telescope Observatory (RTO) in Sai Kung.
The RTO is close to Pak Tam Chung (about 6km NW of Pak Tam Chung).
The real-time weather charts (2 hrs duration) can be seen at :-
http://www.raymondtse-lawyer.com/astro/ ... atory.html
The speed to show the charts may be slow due to bandwidth limitation.
Raymond Tse
Remote Telescope Observatory-Cloud Sensor Realtime Weather
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Dear all,
SQM Graph (magnitude per sq arc sec) is also added to the weather charts :-
http://www.raymondtse-lawyer.com/astro/ ... atory.html
Raymond Tse
SQM Graph (magnitude per sq arc sec) is also added to the weather charts :-
http://www.raymondtse-lawyer.com/astro/ ... atory.html
Raymond Tse
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- 文章: 1090
- 註冊時間: 週一 11 8月, 2003 16:10
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- 中子星
- 文章: 1090
- 註冊時間: 週一 11 8月, 2003 16:10
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- 中子星
- 文章: 1090
- 註冊時間: 週一 11 8月, 2003 16:10
Dear Kenneth
There is both absolute mag reading per arc sec and near
Eye limiting magNELM in the SQM reading but only
I type reading can be displayed.
For graph, the absolute reading is more sensitive
whereas NELM is not displayed in details. Thus I choose
absolute reading but it is too technical.
The is a conversion table online.
I would post up the brief conversion table
later.
Raymond Tse
There is both absolute mag reading per arc sec and near
Eye limiting magNELM in the SQM reading but only
I type reading can be displayed.
For graph, the absolute reading is more sensitive
whereas NELM is not displayed in details. Thus I choose
absolute reading but it is too technical.
The is a conversion table online.
I would post up the brief conversion table
later.
Raymond Tse
The formula for conversion between visual limiting magnitude and sky brightness(in magnitude per arc second).
From: http://members.ziggo.nl/jhm.vangastel/A ... rmules.pdf
From: http://members.ziggo.nl/jhm.vangastel/A ... rmules.pdf
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- 中子星
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No-IP routing is now used to prevent frequent changes of IP address.
SQM meter graph will be updated soon after the computer's CPU heat sink is replaced to prevent overheating of CPU; while conversion table of sky brightness magnitude to near eye limiting magnitude is added for easy reference.
http://www.raymondtse-lawyer.com/astro/ ... atory.html
SQM meter graph will be updated soon after the computer's CPU heat sink is replaced to prevent overheating of CPU; while conversion table of sky brightness magnitude to near eye limiting magnitude is added for easy reference.
http://www.raymondtse-lawyer.com/astro/ ... atory.html
-
- 中子星
- 文章: 1090
- 註冊時間: 週一 11 8月, 2003 16:10
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- 中子星
- 文章: 1090
- 註冊時間: 週一 11 8月, 2003 16:10
The SQM graph is now resumed to normal operation.
Last night we have a clear sky with little clouds. Ground surface visibility is also very high with good seeing.
Sky brightness was about 19.98 at the best.
The graphical phase is now complete. The next phase will be webcast of analogue image of sky camera via RCA signal.
Any webcast expert for analogue video image ?
Raymond Tse
Last night we have a clear sky with little clouds. Ground surface visibility is also very high with good seeing.
Sky brightness was about 19.98 at the best.
The graphical phase is now complete. The next phase will be webcast of analogue image of sky camera via RCA signal.
Any webcast expert for analogue video image ?
Raymond Tse
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