Figure Main Web Page LNO

1.

As for start, go to LNO Web Control Observatory Link as indicated in the Main Web Page. Please ensure that you have installed the latest Java Runtime Environment, preferably version 1.5 update 4 (http://www.java.com/en/download/manual.jsp) and you are using Internet Explorer (IE 6.0) for your internet browser (preferred).

Figure Logon Page

2.0

Logon Operation

2.1

Before logon, please check your screen resolution based on “NOTE” information displayed. If your resolution is not as indicated, please change at “Control Panelà Display à Settings à Screen Resolution” (Note: The higher the resolution, the greater memory usage will be used. It is preferably use in 1024x768 resolution)

2.2

Logon your username and password for authentication process.

2.3

If the authentication fails, you will be prompt back to “Back to Logon” page. If you have not registered your username and password, please contact the system administrator for registration purpose.

Figure Logon Failed

2.4

If your authentication succeeded, you will be directed into appliance web control applet page for pre-observation operation procedure to be completed.

2.5

If your authentication succeeded but you are not in scheduled for observation, please contact the system administrator for scheduling purpose.

Figure- Logon Failed Not in Scheduled to Go Online

Figure Logon Failed With Next Schedule Notification.

3.0

Pre-Observation Operation

3.1

The time display system (SERVER TIME, TIME REMAINING, CLIENT TIME) tells the current time at server, the remaining time for your observation to complete and your PC time. This will help you to know the time for both server and client system plus with your countdown time for observation time allocated for you.

3.1

Once you are connected to the appliance web control system, please go to step III, the APPLIANCES ACTIVATION/DEACTIVATION whereby step I and II were autonomously done for you by the AWC applet system. Please do take note that the switches states of the appliances are indicated at the bottom of the applet page after you have scrolled down. For further usage of the appliance web control system applet, please refer the Appliance Web Control Operational Document.

3.2

You MUST turn on the basic observation appliances before you can proceed to control the telescope system. Below are the lists of basic observation appliances.

1. Auto Dome Control

2. Robotic Mounting

3. Telescope Control Center

4. Main CCD

3.3

For observatory monitoring and telescope guidance operation, you can click at view camera button and will be directed to video server web page. Turn on the camera as listed below.

1. Inside Dome Camera I

2. Guider Scope Camera

3. Outside Dome Camera

4. Wide Angle E-Finder

3.4

Go to Step IV for establishing to telescope system. Click the establish button for make link to the telescope, dome and the main ccd. Wait for the indicator establish status from “Please wait…” to “Telescope is established”.

TIPS: View the camera at video server web pages or the appliance web page itself to see any movement of the telescope and dome for the establishment operation is in running.

3.5

Go to Step V for opening the dome shutter. Click the start open button to open the dome. The dome status can be checked at the dome status.

3.6

Click the “Link to Browser Astronomy” button which will end up the pre-observation operation and link you to the main page of the Browser Astronomy application.

Figure Appliance Web Control Applet Page – Scroll Top

Figure Appliance Web Control Applet Page – Scroll Bottom

4.0

Observation Operation

4.1

To perform observation, two basic operations in sequence should be done in order to obtain the sky image captured. They are slewing and take image operation.

4.2

Once after the pre-observation operation finished (“Link To Browser Astronomy” button is clicked), the page will be directed to “TheSky.asp?CENTERSCOPE”.  You might see several buttons for observation usage. Below are the operational and utilities descriptions buttons as for your reference.

Figure TheSky.asp after Link To Browser Astronomy is Clicked (Pre-Observation finished)

4.3

Operational Button Operation

4.3.1

Slew To - Enter the object name into the text field as indicated in the sky chart and click the Slew To button to slew to the targeted object. (i.e. M42)

NOTE: Please do NOT leave empty on the text field of the object name while Slew To is clicked.

4.3.2

Take Image - Enter the exposure time into the text field (i.e. 4) and click the Take Image button to capture the image.
NOTE: Please do NOT leave empty on the text field of the exposure time while Take Image button is clicked.

4.3.3

Camera Setting – Clicking this button will direct to the Camera Settings page. This is optional and can be left default.

4.4

Utilities Button Operation

4.4.1

Centerscope – Request the location of the telescope pointing from the sky chart

4.4.2

Zenith – Request the zenith position of the sky chart

4.4.3

West – Request the west position of the sky chart with respect to the telescope pointing.

4.4.4

East – Request the east position of the sky chart with respect to the telescope pointing.

4.4.5

North – Request the north position of the sky chart with respect to the telescope pointing.

4.4.6

Zoom out – Zoom out from the position of the telescope pointing.

4.4.7

Zoom in – Zoom in from the position of the telescope pointing

4.4.8

Move right – Move right the sky chart with respect to the telescope pointing so that objects on the right can be viewed more.

4.4.9

Move left – Move left the sky chart with respect to the telescope pointing so that objects on the left can be viewed more.

4.4.10

Move down – Move down the sky chart with respect to the telescope pointing so that objects on below can be viewed more.

4.4.11

Move up – Move up the sky chart with respect to the telescope pointing so that objects on the bottom can be viewed more.

4.5

If you cannot see the sky chart after steps 4.2, use the Zenith button so that you will see the telescope cursor and the dome rectangular shape that tells you the location of each of them in the sky chart.

Figure TheSky.asp after Zenith Button Clicked

4.6

For slewing operation, enter the object name as in the sky chart in STEP 1 and click Slew To. The telescope will start slew to the target object.  The page “slewing.asp” will display the status of the slewing towards its completion.

i.e. Target Object in Sky Chart – M93


Slewing status displayed, and keep counting towards its completion.

Slewing completed.


M93 is in the telescope pointing after slewing completion.

4.7

Capture the image by entering the exposure time and Take Image button is clicked. The CCD will start to capture and display the status of capturing towards its completion.

i.e. Capturing image – exposure time = 1 secs

CCD is start to take image.

CCD is performing imaging.


Imaging completed.

Image will be displayed after capturing in ImageDisplay.asp

4.8

In the ImageDisplay.asp page, you will find the option to download the observation captured image. It is advisable not to download the image while observation since the download can be done in Image Download Center web page once you have finished or logoff from the system. This is to ensure that your time can be saved for observation usage.

The images captured will temporarily be stored in the temp folder and copied to the user/yourname folder once you have logoff from the system.

Click back link to go back to the sky chart page.

4.9

If you have completed your observation, click the log off link to logoff from the system.

Figure Logoff.