James, your signal strengths - - SNR of 10.63 dB and RSSI of -106.56 dBm - - are typical of a working system. I have gotten values like that under Americas 98W and Alphasat 25E in my travels with Pis, CHIPS, and Dreamcatchers (using the new active antenna).
Sometimes weather and local interference play havoc on signal reception, but you are seeing nominal levels. When IMARSAT satellite problems occur, this Forum fills up with lots of complaints which Syed addresses and fixes fast,
Oh yes, don't forget @pradeeka Pradeeka's experience several years ago when his bannana trees grew too fast, and blocked his Ku Band reception. Ken