This NOTAM southwest of Bonero seems to be related to this launch and has a narrower window of 04:29 - 05:03 UTC:A2908/20 NOTAMNQ) WIIF/QRALW/IV/NBO/W/000/999/0046S10800E041A) WIIF B) 2012200429 C) 2012200503E) AEROSPACE FLIGHT ACTIVITIES WILL TAKE PLACE WI AREA AS FLW:001254.00S1073338.00E - 001254.00S1082520.00E - 012259.00S1082520.00E - 012259.00S1073338.00E - 001254.00S1073338.00EDRG THIS ACTIVITY ALL TFC INCOMING AND OUTGOING FM JAKARTA FIR TO SINGAPORE FIR ATS ROUTES/SEGMENTS AS MENTION BELOW ARE NOT AVBL:- M774 NOT AVBL BTN KADAR AND TANUR VICE VERSA- W23 NOT AVBL BTN PKP AND PNK VICE VERSARMK: ALL ACFT SHALL AVOID THIS AREA OR SUBJ ATC CLRF) SFC G) UNL
Someone is streaming live views of the launchpad on Douyu: https://www.douyu.com/2181701As usual I'll start a YouTube mirror for this feed when we get closer to liftoff.
This could be the reason for the delay.
Top of structure now open!