From the video, it appear, that the trajectory of the OS-X launch (red) was lower than planned (blue).
Yes, it looks like the planned peak altitude was 40 km, with actual being about 37 km. There also seemed to be a large deviation in the Z axis at 200 km downrange.
Here's the image that went with that post.
https://twitter.com/PDChina/status/1026268489135214592China has successfully developed and tested its first hypersonic experimental waverider vehicle. After separating from a carrier rocket, #StarrySky2, which rides its own shock waves, maintained ultrafast speeds above Mach 5.5 for 400+ seconds and reached Mach 6 (7,344 km/h).
Quote from: Steven Pietrobon on 08/06/2018 05:46 amHere's the image that went with that post.Do we know the launch site yet??
Quote from: russianhalo117 on 08/11/2018 08:00 pmQuote from: Steven Pietrobon on 08/06/2018 05:46 amHere's the image that went with that post.Do we know the launch site yet??XK-2 was launched very likely from as the same location as OS-X on May 17th, i.e. from the sounding rocket range near the Alxa airport (see https://forum.nasaspaceflight.com/index.php?topic=43696.40). I found some footage from a XK-2 launch video which helps to localize the position of the launch pad and the camera. Another open question is who operates this rocket range. Maybe it is under administration of the Jiuquan Satellite Launch Center which supports launches from Alxa with its tracking and control facilities. Another option is that the rocket range belongs to the Huayin Ordnance Test Center (the former Base 32) which operates a large distance weapon test range north of Alxa.
It's a nice video, but was it really taken from a satellite? In 24 seconds of video, the satellite would have moved ~180km, with about a 10 degree change of viewing angle - which is not apparent in the video. Were any of the Jilin satellites in a position to have captured this imagery at 04:10 UTC on 7th September?
Landspace of China is getting ready for something: 倒计时3天/Countdown 3 days. OneSpace did something similar ahead of its 2nd suborbital launch earlier this month. *Should* be a little too early for launch of Zhuque-1, which would be the 1st private Chinese orbital launch...
One day countdown.
https://twitter.com/AJ_FI/status/1044297401278750720 11:47 - 24. Sep. 2018QuoteLandspace of China is getting ready for something: 倒计时3天/Countdown 3 days. OneSpace did something similar ahead of its 2nd suborbital launch earlier this month. *Should* be a little too early for launch of Zhuque-1, which would be the 1st private Chinese orbital launch...https://twitter.com/AJ_FI/status/1044895338165940224 03:23 - 26. Sep. 2018 QuoteOne day countdown.
Although officials in China have yet to confirm the latest round of testing, Chinese military bloggers claim the eerie phenomenon was caused by the hypersonic glide vehicle which they know as DF-ZF.
As the DF-ZF’s test launches have all been from the Taiyuan Satellite Launch Center in North China’s Shanxi province – and because no other satellite launches were reported on the day – the sightings seem to corroborate suggestions that it was indeed the plane’s eighth flight test to date.
For the first time in history, Chinese scientists have launched a rocketsonde — a rocket designed to perform weather observations in areas beyond the range of weather balloons — from an unmanned semi-submersible vehicle (USSV) that has been solely designed and specially developed by China for this task.The results of initial sea trials conducted in 2018 were published in Advances in Atmospheric Sciences on 31 Jan 2019.
The rocketsonde used in this study, which is essentially a rocket-deployed dropsonde, was designed in cooperation with Jiangxi Xinyu Guoke Technology Co., Ltd., to meet the requirements for detecting the detailed vertical structure of the low-level troposphere at sea.