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An artist's concept of BEESAT in orbit.

Early this morning (UTC), an Indian PSLV-C14 rocket carried the Oceansat-2 satellite to orbit, along with four CubeSats and two RubinSats. The RubinSats are 8 kg research modules that will remain attached to the PSLV-C14 booster.

CubeSats are very small satellites, typically only a few inches on each side. As they are a relatively inexpensive research spacecraft, they've become increasingly popular with university science programs. A number of CubeSats use Amateur Radio frequencies to downlink telemetry, as is the case with this latest group. Early reports indicate that all of the CubeSats are active.

Here are the frequencies and modes for the four CubeSats:

CubeSat	Country	Beacon Frequency (MHz)	Data Downlink (MHz)
BEESAT	Germany	436.000 (CW)	436.000-4800/9600 bps GMSK
UWE-2	Germany	n/a	437.385-1200/9600 bps AFSK/FSK
ITUpSAT1	Turkey	437.385 (CW)	437.325-19200 bps GFSK
SwissCube	Switzerland	437.505 (CW)	437.505-1200 bps FSK

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