I’ve been reading the Airliners.net forum thread about this incident, there’s a translation from a Russian article of an interview with a radar engineer (presumably with experience in the system used to shoot down the plane),post hereand excerpts from the translation:
*"- The Ukrainian plane took off with a delay of about an hour. “It doesn’t matter, the message to the commander should have been received anyway.” But the point is not even in the schedule. The plane took off from a civilian airfield and went along a standard highway. A passenger plane cannot fly anyhow, it goes along a dedicated corridor.
The commander of the air defense system’s crew must see that the target is in the corridor allocated for passenger aircraft. This alone should show him: before him is not some American drone, but a civilian airliner. "
"- No one could confuse a passenger plane with a cruise missile under any circumstances. Unless it was just a monkey with a grenade, but a drunk monkey with a grenade. This means that Iran no longer knows what to lie.
At the Tor air defense system, as I told you last time, there are two locators. One is a panoramic one that rotates continuously and captures everything that flies around. When the plane took off from the airfield, the survey locator saw it in twenty seconds. And then all the while the plane flew, all six minutes, on the screen of the surveillance radar was the track. That is, from the very beginning of the flight it was clear where the target flew from. “Did they see the cruise missile launched from a civilian airfield?”
- Of course. While only the survey locator was working, one would still think that something military was flying next to a civilian plane. But then the missile guidance locator turns on. The missile is aimed at the target by a very narrow beam, of the order of one degree wide. He distinguishes everything so well that there can already be no mistake. The probability that not only a civilian aircraft, but also something else military will fall into this beam is zero."*
Also in that thread there is a link to a video of the TOR-M1 system in use, at the 1:00 mark it shows an optical tracking system opening up and a short view of the screen from that system inside the crew compartment at 1:31.
Also in that thread I saw the link to a video showing both missiles being fired at the airplane, the first one hits the plane at around 0:20, the second one is fired 14 or 15 seconds later. It’s clear that there was a direct line of sight from the AA battery to the airplane and the distance, from what I’ve gathered was about 5 kilometers.
The should have known it was a civilian airliner and they should have seen it too.
I’ve talked about this with an Iranian friend of mine over lunch, the people are livid about what happened there but he told me he expects nothing more than one or two low rank, expendable people to be thrown under the bus to appease the masses.
Meanwhile the Iranian government demonstrates their priorities (and level of competence):
[Iran’s elite Revolutionary Guards had taken a person who posted a video last week of the missile striking the plane into custody.
But an Iranian journalist based in London who initially posted the footage has insisted that his source is safe, and that the Iranian authorities have arrested the wrong person.](Iran plane downing: Person who filmed video 'arrested' - BBC News)
And:
“Earlier on Tuesday, Iranian judiciary spokesman Gholamhossein Esmaili said that several people had been detained over the downing of the plane.”
No, not the people who shot it down, “30 people had been arrested for “taking part in illegal gatherings” - an apparent reference to recent anti-government protests”