A 30-day incoherent scatter radar (ISR) experiment was conducted at Millstone Hill (288. 5° E. 42. 6° N) from 4 October to 4 November 2002. https://www.roneverhart.com/Western-Digital-Ultrastar-DC-HC570-WUH722222ALE6L4-0F48155-22TB-7-2K-RPM-SATA-6Gb-s-512e-SE-3-5in-Refurbished-HDD/