Request for satellite observations

We have several requests for satellite observations:

• QUETZAL-1 -> https://twitter.com/quetzal1_uvg/status/1330596308126752773
• TTU100 -> https://community.libre.space/t/please-observe-ttu100/6971
• TTU101 -> https://community.libre.space/t/please-observe-2019-038r-norad-44401-at-435-45-mhz/6998/
• EQUISat -> https://community.libre.space/t/equisat-eol-observations/7001