Quote from: Skyrocket on 02/19/2018 05:08 pmQuote from: deruch on 02/19/2018 04:55 pmWhere is the info on the mass of the MicroSats coming from? From the FCC filing, Purpose of ExperimentQuoteThe primary structure for the Microsat-2a and -2b test spacecraft will be a box design measuring 1.1m x 0.7m x 0.7m and carries the spacecraft flight computer, power system components, attitude determination and control components, propulsion components, GPS receiver, and broadband, telemetry, and command receivers and transmitters. The primary bus is mounted on the payload truss system, which also carries communications panels, inter-satellite optical link transmitters and receivers, star trackers, and a telemetry antenna. There are two 2x8 meter solar panels. Each demonstration spacecraft has a total mass of approximately 400kg This extract from the FCC licence for the whole constellation gave the mass for the whole starlink sat as 386kg.Similarly, the solar panels were 2*6*2m, which has grown as well.This sounds less like a early test satellite, and more like a full-up prototype, which has grown a little from early estimates..The box dimensions of '1.1x0.7x0.7' are interesting.
Quote from: deruch on 02/19/2018 04:55 pmWhere is the info on the mass of the MicroSats coming from? From the FCC filing, Purpose of ExperimentQuoteThe primary structure for the Microsat-2a and -2b test spacecraft will be a box design measuring 1.1m x 0.7m x 0.7m and carries the spacecraft flight computer, power system components, attitude determination and control components, propulsion components, GPS receiver, and broadband, telemetry, and command receivers and transmitters. The primary bus is mounted on the payload truss system, which also carries communications panels, inter-satellite optical link transmitters and receivers, star trackers, and a telemetry antenna. There are two 2x8 meter solar panels. Each demonstration spacecraft has a total mass of approximately 400kg
Where is the info on the mass of the MicroSats coming from?
The primary structure for the Microsat-2a and -2b test spacecraft will be a box design measuring 1.1m x 0.7m x 0.7m and carries the spacecraft flight computer, power system components, attitude determination and control components, propulsion components, GPS receiver, and broadband, telemetry, and command receivers and transmitters. The primary bus is mounted on the payload truss system, which also carries communications panels, inter-satellite optical link transmitters and receivers, star trackers, and a telemetry antenna. There are two 2x8 meter solar panels. Each demonstration spacecraft has a total mass of approximately 400kg
And she is back outside 23 hours before launch on a cold clear morning.
Quote from: Helodriver on 02/20/2018 02:59 pmAnd she is back outside 23 hours before launch on a cold clear morning.I cannot in a few minutes find a nice shot of the TEL which lets me compare the diameter of the fairings. It looks a hair bigger by eye, but I can't find an image I can simply measure it from.Anyone happen to have a nice comparison image?
And she is up.
Based on the new vertical image I can't really tell any huge difference between that fairing and any others. It seems a little bit wider than usual, but I thought I heard Fairing 2.0 would be easily distinguishable from other ones.
PAZ is vertical on the pad, and I think we have a 5.28-meter fairing. At least if my pixel-counting skills are what they used to be.
Any sign of an updated launch forecast yet? If there's not likely to be fog, I'm thinkin of making the trek.
I wonder what kind of propulsion system they used. Could they have just thrown a single Draco on there?
Quote from: sevenperforce on 02/20/2018 06:16 pmI wonder what kind of propulsion system they used. Could they have just thrown a single Draco on there?Adding carcinogenic, really toxic propellants to the fairing does not seem likely, if cold gas thrusters will work well enough.Weight isn't a _huge_ issue at this point, as 10kg on the fairing means about 1kg off the payload.Plus, in the event of a really, really marginal mission, they can simply not install the recovery hardware.
Mr. Steven is heading out for the first fairing recovery attempt with Fairing 2.0.
Quote from: sevenperforce on 02/20/2018 04:41 pmPAZ is vertical on the pad, and I think we have a 5.28-meter fairing. At least if my pixel-counting skills are what they used to be.It looks no different than the existing one, IMO. And you cannot get 8cm of accuracy from that picture.
Quote from: Michael Baylor on 02/20/2018 07:11 pmMr. Steven is heading out for the first fairing recovery attempt with Fairing 2.0. She's making good way but not exactly straining her capabilities. Wonder if that's fuel consumption or if there are speed restrictions with those giant arms. It will be interesting to see what speed she returns at, especially if we have reason to beleive she caught something...
Quote from: Lars-J on 02/20/2018 08:45 pmQuote from: sevenperforce on 02/20/2018 04:41 pmPAZ is vertical on the pad, and I think we have a 5.28-meter fairing. At least if my pixel-counting skills are what they used to be.It looks no different than the existing one, IMO. And you cannot get 8cm of accuracy from that picture.My bad. I thought the original fairing was 5 meters even.
