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That would be my guess. :cheers:

double current_fuel = GetPropellantMass(hProp1); double max_fuel = GetPropellantMaxMass(hProp1); double fuel_fraction = current_fuel/max_fuel; SetAnimation(anim_FROST, fuel_fraction);

Turn the tower Catch Sequence on: Focus BC_TOWER, press B. :cheers:

Attachment Manager. Possibly. Try it and see! Good luck! :cheers:

Updated scenarios for 03 July 2026 launch date.

BrianJ updated Neil Gehrels Swift Observatory with a new update entry: 260704 Read the rest of this update entry...

Cool, glad it got into orbit OK (y) Here's a launch scenario for today, starts at 05:30 UTC, Swift vectors from JPL. If you go by the reported drop time of 08:36 UTC, and are over the drop zone, a launch azimuth of 105 worked quite well for me (final orbit 360x420km, Rinc. 0.13) :cheers:

Well, here's a launch scenario for tomorrow (attached) starting at 06:00 UTC, Swift vectors from JPL Horizons. As before, if they use the same drop zone, my estimates for drop times based on Orbiter would be: 09:16 UTC 108 azimuth 09:18 UTC 110 azimuth 09:20 UTC 112 azimuth Not sure why that...

Thanks guys. I wondered what had happened today. I always have to dig quite hard to find any updates on this mission.

Here's another launch scenario (attched below) for 06:40 UTC 01 July, Swift vectors from JPL Horizons. If they use the same drop zone as before I estimate drop at: 09:50 UTC 108 azimuth 09:52 UTC 110 azimuth 09:54 UTC 112 azimuth :cheers:

"India Today" reports that today's launch was scrubbed due to weather. Possible attempt tomorrow 01 July at 09:43 UTC. :cheers: Edit: Ninja'd by Voyager_VI! :LOL:

Hey, glad you had some fun with it! (y)

Updated scenarios for 30 June Link launch date. New Link module with +Z RCS translation, fixes small bug with OrbNml+/- attitude function. Includes optional Bucholz.flt file to flatten Kwajalein runway (for Earth Hi-Res texture users).

BrianJ updated Neil Gehrels Swift Observatory with a new update entry: 260627 Read the rest of this update entry...

Here's a patch .zip with a new link.msh and link.dll module that has "Forwards" RCS added (I can't be bothered with that flipping back and forth thing). Also a new L1011 take-off scenario, starts at 07:20 UTC 30 June, Swift state vectors for that time from JPL Horizons. I'll try and do a full...

Cool! 😎 Good luck with the SyncOrbits stuff (y) I use the JPL Horizons vectors. It depends how you propagate the TLE and how old it is. The Swift LAN is drifting at about -7.6deg/day: June 27 LAN = 105.73 June 30 LAN = 83.62 In case you want to check. For now I'm going with the the 10:23 UTC...

Yes, the Pegasus steering is...idiosyncratic! Using Link Ion engines, you can reduce Rinc. by about 0.01deg per orbit - thats a lot of orbits to sit there flipping OrbNml+/-, but it can be done. I'm going with the 108deg azimuth and 10.23 UTC drop time, worry about the debris later ;) :cheers:

It ain't easy. You need to keep as much RCS fuel for the docking as possible. Doing the azimuth steering for Pegasus to align orbit is tricky, but lets say you get within 0.3deg and use the Pegasus RCS to trim the orbit to~380x420km before releasing Link. Next thing to do is use the Ion engines...

Did you enable the tower catch function?

Thanks! I'll see if I can make an update over the next couple of days (y) I haven't seen any scheduled launch webcasts - let me know if you find any. :cheers: