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Messages - kalvis

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Data and Software Questions / Re: COSPAR ID to ILRS format
« on: November 23, 2021, 09:20:28 AM »
Any success? I have found COSPAR international designation origins -  IGY Bulletin: No. 61, No. 62, No. 63. Trans AGU 43:345. (In case the number of components or objects of a satellite launching is large, the following convention will be used: the letters I and 0 will always be skipped; the 25th object or component will be designated AA, the 26th AB, etc., the 49th BA, etc., etc)
The question is how the ILRS Cospar id is calculated. For Tubin(2021-059X, 2105922) and Elsa-D(2021-022N, 2102213) seems that its just a conversation  according to the rule above, but there are a few examples  in the past (Lightsail 2 and GFZ-1) which doesn't follow this convention.

2015-025L     | 1502511  |40661|   Lightsail 1   
2019-036AC   | 1903629  |44420|   Lightsail 2   
1986-017JE   | 8601795  |23558|  GFZ-1

Legacy software is C and  x86 assembly  for telescope control, Labview and Delphi for data processing. Moving to C#/F#/Python/C for all tasks

Kalvis Salmins

In-Sky Safety / Re: On telescope camera for plane spotting
« on: September 14, 2017, 07:01:31 PM »
In our experience FOV is  sufficient  to have  a time to manually use safety switch to block outgoing laser beam. From the other hand - plane entering FOV of camera is a quite rare event for our system and location.

In-Sky Safety / Re: On telescope camera for plane spotting
« on: January 17, 2017, 07:56:17 PM »
We are using Mintron CCTV attached to telescope,  approx 2x4 deg FOV, plane navigation lights are visible in night.   

Telescopes / CCTV/ICCD/EMCCD cameras for tracking
« on: January 17, 2017, 07:08:59 PM »
Any ideas or suggestions for ICCD/EMCCD/CCTV camera for tasks like  visual tracking and star models? In a few SLR publications ICCD cameras are mentioned, like, but no details on specific models. The options are like starting from CCTV cameras used also  in astronomy like Watec and ending like Andora Zyla 4.2 PLUS sCMOS(?).
Requirements besides the obvious to see as much as possible:
1) Programming API, e.g. we should be able to define and display reference marks
2) Gating - we should able to shut down  camera/close shutter at certain moments
3) Pixel size, sensor size and mount are important but here we have some freedom, px count is not so important. C-mount and 1/2" CCTV like sensor size should do fine.
4) Expected lifetime - should handle regular use in tracking
Visual tracking, mount models, and optionally experiments like described in "Optical Characteristics of the Retroreflector in Space on the ADEOS Satellite in Orbit", where ICCD was used.   

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