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-
- SHOWLOG Program
-
- V1.0
-
- This program will show on screen graphic analysis of the automatic
- files that Microsats create, such as:
-
- ELTLOGXX Records single and double bit memory errors
- This file is cumulative as many days can be
- recorded in this file. It is usually the same
- file number, that grows recording new errors.
-
- AL91xxyy Recording stations and Microsat activity
- This file is created one per day, having
- on xxyy Month and Day of the log.
-
-
-
- WHAT IS NEEDED:
-
- Program had been tested on a PC-XT with CGA (Color Graphics Adapter)
-
- You need to download one of the mentioned files, that will be used as input
- for the program. After download, use PHS to extract it. I.E.
-
- PHS 301.dl /x
-
- You will have after extracting a file either ELTLOGXX.n or AL91xxyy.
-
- This file is input to this program.
-
- You will also need a recent Keplerian data file in AMSAT format such as:
- (numeric data should be on the shown positions, alphabetic data
- should be equal to this example)
-
- Satellite: LO-19
- Catalog number: 20442
- Epoch time: 91043.71839123 Don't worry if there
- Element set: 196 are many satellites on
- Inclination: 98.6819 deg the file, or if there is
- RA of node: 124.2620 deg additional information
- Eccentricity: 0.0012688 as program will use,
- Arg of perigee: 167.7080 deg search and get only
- Mean anomaly: 192.4398 deg required data.
- Mean motion: 14.29196610 rev/day
- Decay rate: .00000765 rev/day^2
- Epoch rev: 5522
-
- Program will read this ASCII file, search for the satellite needed, and
- extract keplerian data to calculate satellite position according to recorded
- time found in the logs.
-
- A earth map, that's contained on SHOWLOG.MAP, included in this package.
-
- GRAPHICS.COM, a module included in DOS, that will allow you to print
- whatever picture this program produces.
-
-
- ----------------------------------------------------------------------------
-
- ERROR LOG ANALYSIS DISPLAY
-
- When you select an ELTLOG for process, program will mark on the map,
- where the hit that caused memory error was produced.
-
- If the error was a single bit, then a cross will be marked, if
- double bit then a square will be marked.
-
- On the lower right of the screen, you will see the count of Single error and
- Double error, both separated by a slash (/).
-
- Also the memory address and the file (if applicable) are shown.
-
- Display will constantly show start date/time and actual date/time of the
- plotted error.
-
- On the lower left of the screen a bar graph will be shown, every vertical
- bar representing one day, being its highness according to the amount of
- errors, that could be measured along the scale shown.
-
- If the error was a double bit, then you will see a hole on the vertical bar.
-
- When complete log had been read, a file with the name EL91xxyy.PIC will
- be written on disk. This file is a copy of the screen, and can be
- viewed with the program using the DISPLAY selection.
-
- If you load GRAPHICS.COM before running this program, you can print
- a copy of the screen pressing Shift-PrintScreen.
-
- This chart can be used to track where memory errors are produced, there
- is a known geomagnetic perturbation known as 'South Atlantic Anomaly',
- that will easily be seen when running this program.
-
- You will see also that over populated areas, or areas where the satellite
- gets more users, there is also a tendency to show memory errors.
-
- The daily error graph can be used to track solar magnetic storms, or other
- external/internal influences that shows over time. Will be interesting to
- correlate this graph to the solar activity to see if there is any
- correspondence.
-
- Graphs over periods of time could be useful to track overall activity
- of the Microsats and tendencies if there are any.
-
-
- -----------------------------------------------------------------------------
-
-
- ACTIVITY LOG DISPLAY
-
- When you input to the program an Activity Log, the show Starts.
-
- I will like to express my appreciation and recognition to the gurus
- that make the programs that runs on the Microsats, through this program
- you can see what a lot of things these boxes can handle simultaneously.
-
- When SHOWLOG analyzes an Activity Log, you will see on the lower right
- of the screen the Satellite, AL file under analysis, Date/time, Current
- Session and Amount of free memory the satellite has.
-
- On the map, SHOWLOG will place a thin mark where one user connects, if there
- are two users then a double wide mark will be placed, if three users then
- the satellite path will be more wide, and so on.
-
- So you will see in the map where the satellite gets activity, and by the
- wideness of its path the amount of users in that area.
-
- On the lower part of the screen you will see the Call Sign that gets
- a connection, as well as its SSID (usually -0).
-
- Also is shown which uplink channel the user is using. Either ^A, ^B, ^C or ^D
- These channels corresponds to the uplink frequencies, 145,900, 920, 940 & 960
- for the Pacsat or 145,840, 860, 880, 900 for the LUSAT.
-
- Below the user Callsign, you will see which activity is performed, either
- DIRs, Downloads, Uploads, etc.
-
- When Downloads or uploads are requested, the program shows which file
- had been requested and from which position on that file.
- For example D 64E:12432 is saying that file 64E was requested and is
- being requested from its position 12432 and on. Same for uploads.
-
- There are four maximum users. When an user LOGs OFF (Disconnect), its
- display remains until this Task is being needed for other user.
-
- A fifth user is the Microsat itself, that could be doing internal functions,
- such as deleting a file, checking memory, Start/Stop Tasks, etc.
-
- This is shown on a fifth column, when it appears REJECT on this column it is
- due all tasks are in use and another user had requested connection.
-
- Also broadcast requests are being handled by the Microsat, and as such
- are being shown on this column, as well as the user that requested the
- broadcast and on which channel uplinked the request.
-
- When Activity log analysis finishes, program will give a report on
- every activity requested to the Satellite, and amount of times requested.
-
- After this screen, if you press enter, you will see a report containing all
- Callsigns (First 77 only, due lack of screen space), that contacted or
- broadcasted the Microsat during the Activity log day. The number shown for each
- callsign is the amount of LOGON plus Broadcast requests made by that station.
-
- It the station made a Broadcast, it will be marked with a tiny point close
- to the number on that Callsign number of Logons.
-
- Program will create an AL91xxyy.PIC containing map and BBS statistics and
- a file AU91xxyy.PIC containing map and users Callsigns.
-
- You can print either report pressing Alt-PrtSc.
-
- You can append several ALOG files for a continued activity show if required.
-
- Program can be slowed pressing -/+ Keys. Speed will be marked accordingly.
- Maximum speed is 10.
-
- If you like fancy noises, then press Y and will hear the Microsat Symphony.
-
- When seen, your call will be rewarded with a special sound
- by the Microsat SHOWLOG.
-
-
- Any suggestions, critics or insults are welcome.
-
- ENJOY!
-
- Best 73s, LU7ABF, Pedro Converso. AMSAT Argentina Member.