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On December 15, 2006, XM-1 was finally powered down and then drifted back to its original location at 85° WL, where it remained as a backup to XM-3. XM-2 was similarly powered down and remained as a backup to XM-4. This makes the current active satellites as XM-3 "Rhythm" and XM-4 "Blues" with two in-orbit spares. [41] [42]
Sirius FM-3, also known as Radiosat 3, was an American communications satellite which was operated by Sirius XM Radio, previously Sirius Satellite Radio. It was constructed by Space Systems Loral and was based on the LS-1300 satellite bus. Launch occurred on 30 November 2000, at 19:59 GMT.
A Tundra orbit (Russian: орбита «Тундра») is a highly elliptical geosynchronous orbit with a high inclination (approximately 63.4°), an orbital period of one sidereal day, and a typical eccentricity between 0.2 and 0.3. A satellite placed in this orbit spends most of its time over a chosen area of the Earth, a phenomenon known as ...
There were more eyes than usual on Sirius XM Holdings (NASDAQ: SIRI) this week in anticipation of the satellite radio operator posting third-quarter results on Oct. 31. With Warren Buffett's ...
As of May 2022, there are six functional satellites in orbit: two XM, two Sirius, and two supporting both systems (one being a spare). [120] [121] XM-3 and XM-4 are the active satellites for the XM service and replaced the original XM-1 and XM-2 satellites (which were placed into disposal orbits). Sirius FM-5 and FM-6 function as the primaries ...
A highly elliptical orbit (HEO) is an elliptic orbit with high eccentricity, usually referring to one around Earth. Examples of inclined HEO orbits include Molniya orbits, named after the Molniya Soviet communication satellites which used them, and Tundra orbits. Such extremely elongated orbits have the advantage of long dwell times at a point ...
Sirius FM-5, also known as Radiosat 5, is an American communications satellite which is operated by Sirius XM Radio. It was constructed by Space Systems Loral, based on the LS-1300 bus, and carries a single transponder designed to transmit in the NATO E, F and I bands (IEEE S and X bands). It is currently being used to provide satellite radio ...
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