Quote from: Rocketdog2116 on 05/04/2021 07:13 pmHas anyone else noticed that for a lot of the more recent starlink flights the clock shows t=0 at ignition and T+2 or 3 at liftoff? Obviously the rocket is lifting off on time but it seems like that's been happening a lot recently.Well, it is really just a question of definition: Does the flight begin when the Merlins ignite, or when the clamps release?Apparently they have decided that from an engineering standpoint the flight begins at ignition.
Has anyone else noticed that for a lot of the more recent starlink flights the clock shows t=0 at ignition and T+2 or 3 at liftoff? Obviously the rocket is lifting off on time but it seems like that's been happening a lot recently.
Quote from: SpaceFinnOriginal on 05/04/2021 08:37 pmWas it also, 100th booster landing attempt?100th straight Falcon 9 and Falcon Heavy rockets without an in-flight mission failure.
Was it also, 100th booster landing attempt?
Maybe the clock isn't quite synched on the webcast for all the cameras?
Quote from: Jansen on 05/04/2021 08:55 pmQuote from: SpaceFinnOriginal on 05/04/2021 08:37 pmWas it also, 100th booster landing attempt?100th straight Falcon 9 and Falcon Heavy rockets without an in-flight mission failure.Are you counting IFA?
Quote from: b.lorenz on 05/04/2021 08:52 pmQuote from: Rocketdog2116 on 05/04/2021 07:13 pmHas anyone else noticed that for a lot of the more recent starlink flights the clock shows t=0 at ignition and T+2 or 3 at liftoff? Obviously the rocket is lifting off on time but it seems like that's been happening a lot recently.Well, it is really just a question of definition: Does the flight begin when the Merlins ignite, or when the clamps release?Apparently they have decided that from an engineering standpoint the flight begins at ignition.IIRC (doubtful, I was very young), on Saturn, it was "3, 2, 1, 0, Ignition, Liftoff", but on Shuttle it was more like "3, (Main Engine Ignition), 2, 1, 0, SRB Ignition, Liftoff".
Quote from: gongora on 05/04/2021 09:00 pmQuote from: Jansen on 05/04/2021 08:55 pmQuote from: SpaceFinnOriginal on 05/04/2021 08:37 pmWas it also, 100th booster landing attempt?100th straight Falcon 9 and Falcon Heavy rockets without an in-flight mission failure.Are you counting IFA?That wasn't a mission failure.
Quote from: Tommyboy on 05/04/2021 09:11 pmQuote from: gongora on 05/04/2021 09:00 pmQuote from: Jansen on 05/04/2021 08:55 pmQuote from: SpaceFinnOriginal on 05/04/2021 08:37 pmWas it also, 100th booster landing attempt?100th straight Falcon 9 and Falcon Heavy rockets without an in-flight mission failure.Are you counting IFA?That wasn't a mission failure.I wouldn't count it as a success in that sense either, it was a suborbital test flight
Quote from: r8ix on 05/04/2021 08:58 pmQuote from: b.lorenz on 05/04/2021 08:52 pmQuote from: Rocketdog2116 on 05/04/2021 07:13 pmHas anyone else noticed that for a lot of the more recent starlink flights the clock shows t=0 at ignition and T+2 or 3 at liftoff? Obviously the rocket is lifting off on time but it seems like that's been happening a lot recently.Well, it is really just a question of definition: Does the flight begin when the Merlins ignite, or when the clamps release?Apparently they have decided that from an engineering standpoint the flight begins at ignition.IIRC (doubtful, I was very young), on Saturn, it was "3, 2, 1, 0, Ignition, Liftoff", but on Shuttle it was more like "3, (Main Engine Ignition), 2, 1, 0, SRB Ignition, Liftoff".Except for STS-1, which had Main Engine Start at T-3 and liftoff several seconds after T-0.
https://twitter.com/c_fletcher22/status/1389656004867117067For the people who keep track of fairings
Starlink_v1.0-L25 active halve pattern corresponds to active halve of Starlink_v1.0-L10, previously flown on Starlink_v1.0-L3. Not too much to Starlink_v1.0-L22 fairing as tweeted.
Mr. Jonah finally left the LZ early this morning with OCISLY and B1049-9. It is hard to say what the delay was when the landing looked good. BTW, Shelia is just hanging out. Did they get fairings? If so will they jenga more on this weekend? So many questions. #SpaceXFleet
Quote from: Raul on 05/05/2021 11:12 pmStarlink_v1.0-L25 active halve pattern corresponds to active halve of Starlink_v1.0-L10, previously flown on Starlink_v1.0-L3. Not too much to Starlink_v1.0-L22 fairing as tweeted.Colin is a writer for NSF, but I’m not sure what his source is on this. I suggest you contact him if you feel that strongly.
