TDRS-M, the last satellite based on the Boeing-601
Manufacturer
Boeing
Production
Status
In service
On order
84
Launched
76
Lost
8
Maiden launch
Optus B1 13 August 1992
Last launch
TDRS-M 18 August 2017
Related spacecraft
Derivatives
Boeing 601HP[1]
← HS-376
Boeing 702 →
The Boeing 601 (sometimes referred to as the BSS-601, and previously as the HS-601) is a communications satellite bus designed in 1985 and introduced in 1987 by Hughes Space and Communications Company. The series was extremely popular in the 1990s, with more than 84 purchased by customers globally. The more advanced 601HP derivative (for "high power") was introduced in 1995.[1] Hughes, and the 601 platforms, were acquired by Boeing in 2000.
The last commercial 601 satellite was ordered in 2001 and launched in 2004. The NASA Space Communications and Navigation (SCaN) Program Office in December 2007 selected the BSS-601HP for its third generation TDRS spacecraft, adding the two 15-foot (4.5m) diameter steerable antennas. The TDRS-M satellite, launched on August 18, 2017, became the last 601 satellite to reach orbit.[2]
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