While these costs are high, they are considered the lowest for capability, offered. Therefore, while it would not serve the needs of an inexpensive/near- term demonstrator, it could serve the needs of a follow-on demonstrator immediately afterward. This will be discussed in Section 5.2. 3.4.2 SPARTAN NASA has its own version of Astro-SPAS, albeit much simpler, smaller and less capable, but much less expensive. This is called SPARTAN (Shuttle Pointing Autonomous Research Tool for Astronomy) and is shown in Figure 3.4-2.[19] SPARTAN has similar characteristics to Astro-SPAS in that it is battery powered, uses a cold gas attitude control system and has a fine pointing capability. However it is limited to a payload mass of about 150 kg. SPARTAN (Figure 3.4-2)
RkJQdWJsaXNoZXIy MTU5NjU0Mg==