In this paper we study the possibility of creating a multifunctional optoelectronic system capable of performing both Earth surface observation and space objects survey. It is shown that an optoelectronic camera using an interline CCD matrix can act as such system. A description of the interline CCD matrix operating procedure in time delay and integration (TDI) mode is given. Measurement result data is provided for main energy and modulation transfer characteristics of the implementation of TDI mode interline CCD.
In this paper the defects in interline CCD matrix were studied, which appear as a result of its irradiation with high-energy protons. Defects were studied in different operation modes: in frames mode and in time delay and integration (TDI) mode. By using a special organization of TDI mode we were able to localize defects in vertical register with a precision of one pixel. The dependence of the defects behavior on different system parameters was also studied, such as: temperature, exposure time in frame mode, exposure time of every step of integration in TDI mode, charge storage time in vertical register and number of integration steps in TDI mode. Also a method of removal of the influence of these defects directly during flight tests was developed and tested.
Today, in the next step of the experiment, a satellite inspector was detached from the small satellite (Cosmos-2521). The inspector is capable of diagnosing the technical condition of a/the Russian satellite from the closest possible distance using special equipment. The obtained information will be sent to Earth for detailed analysis and to decide whether the observed satellite will be restored to working order.
Kosmos-2519/2521/2523---------------------The Russian inspector satellite experiment launched in 2017 continues.From Jun 27 to Jul 19 the host satellite Kosmos-2519 made a series ofburns which changed its orbit from 644 x 659 km to 318 x 664 km.Kosmos-2521 appears to have made a single burn on Jul 20 to go from 346x 362 km to 292 x 348 km. Kosmos-2523 remains in the 553 x 665 km orbitinto which it was ejected last October.
My first article about Cosmos 2519 et al which I called "Cosmos 2519 - A Mysterious Military Satellite" has been renamed "Unidentified Flying Object", and it is in the June 2018 issue of the British Interplanetary Society's Spaceflight magazine, pages 34-39: the issue is published in early May.I have a second article underway, looking at this year's developments of the three-satellites mission, and I plan to submit that to Spaceflight at the end of June, thus having the two articles covering the first year's activities. My title for the article is currently "Further Cosmos 2521 Operations with Cosmos 2519", but I assume it will be renamed to be something like "Flying saucers are here".
Just noticed on reading the BIS Russian/Sino Technical Forum agenda your 30min afternoon talk on 2 June was called: "Cosmos 2519 - The Matryoshka Satellite" is that the name of the paper to be published?
Quote from: Magic on 08/09/2018 11:10 pmJust noticed on reading the BIS Russian/Sino Technical Forum agenda your 30min afternoon talk on 2 June was called: "Cosmos 2519 - The Matryoshka Satellite" is that the name of the paper to be published? Now that both Cosmos 2519 and 2521 appear to have stopped manoeuvring (for the time being!) I hope to finalise the paper today and send it off by the middle of next week. The working title is "Cosmos 2519 et al: Further Operations, January-July 2018", but who knows what title it will be given by Spaceflight for publication?!
You do know as soon as you send it in one or both will start manoeuvring again.
Quote from: Star One on 08/10/2018 05:59 amYou do know as soon as you send it in one or both will start manoeuvring again.Which is why I am hoping that my sight lasts long enough to do a third paper in maybe a year's time.
Sorry to hear that.
Not to go too far off topic, but your right, your Soyuz spacecraft recoveries talk was entitled “Happy Landings” in the July issue. It’s sad to see them use such a tabloid style, rather then being a good reference of record.
Now we have Cosmos 2521 on the move. No manoeuvre from Cosmos 2519 yesterday but instead Cosmos 2521 converted its perigee to a new apogee:Jul 19.827 97.899 deg 91.613 min 346-362 km 223 degJul 20.583 97.901 90.929 292- 348 93
Mr. President, in October of last year the Russian Ministry of Defense deployed a space object they claimed was a “space apparatus inspector.” But its behavior on-orbit was inconsistent with anything seen before from on-orbit inspection or space situational awareness capabilities, including other Russian inspection satellite activities. We are concerned with what appears to be very abnormal behavior by a declared “space apparatus inspector.” We don’t know for certain what it is and there is no way to verify it.
BBC catches up with the story but apparently they don't know which satellite is being talked about.https://www.bbc.co.uk/news/technology-45194333
Russia has dismissed the comments as "unfounded, slanderous accusations based on suspicions".
"The Americans are overreacting. Apparently, the time has come for that and they've found a reason. They've most likely been following the movements of the satellite and seeing where it is flying to. [They're making a big fuzz about the fact] that it is maneuvering. At the same time, they fail to mention that America also has satellites that maneuver and can approach our satellites. This is a purely political game"."This is a secret satellite. For which purposes it is being used is very difficult to say, but it is a fact that it is maneuvering. This means it can approach other satellites, both Russian and foreign. This is nothing new. The Americans have similar satellites that can also approach satellites of friendly countries and collect certain information. What kind of information they collect, how they can interact with one another or with an enemy satellite is top-secret information that neither the Americans nor we can and will reveal". "Neither we nor they have any evidence that combat systems have been placed into orbit. There is no evidence whatsoever that our satellite or American inspector satellites carry weapons to damage enemy satellites".