Lockheed Martin Space encourages payload providers and mission planners to create missions optimized for – or at least compatible with – our versatile and highly capable LM 400 LEO/GEO Small Satellite platform. Table 1 provides a summary of typical interfaces and performance capabilities provided by the LM 400 platform. These specifications serve as a guide to those interested in flying on this bus. An actual compatibility assessment is best done through an exchange of detailed information and interface requirements, as the LM 400 is quite flexible in configuration and capability. Figure 1 shows a nominal payload volume for an externally mounted payload with internal electronics, if required. In many cases, specific interface adaptations are easily accommodated.