Documents / Official release
This Defense Intelligence Reference Document (DIA-08-1011-001), dated 1 November 2010, was prepared by the Defense Intelligence Agency's Defense Warning Office under the Advanced Aerospace Weapon System Applications program. It covers nanosatellite technologies, laser Lightcraft propulsion, a weapon mission selection study and a multi-megawatt laser study. The author recommends that the Department of Defense, working with NASA, bring laser Lightcraft propulsion research back to the United States and restart the Air Force X-50LR test flight program.
From the source: Release of 2026-09-18 Incident: 11/1/10, Las Vegas, Nevada. Released with redactions. This document is a Defense Intelligence Reference Document (DIRD), a technical reference format used by the Defense Intelligence Agency (DIA) to capture baseline knowledge on a specific topic for later analytic use. DIRDs are best understood as reference and synthesis products rather than as original research. It is one of 38 DIRDs produced under the Advanced Aerospace Weapon System Applications Program (AAWSAP) between 2009 and 2011. Because AAWSAP’s scope permitted a broad range of supporting topics, not every DIRD in the series directly concerns aerospace systems or future threat assessment. The following summary reflects the DIRD’s scope and framing at the time of writing and should not be read as implying current validation of the concepts discussed. This DIRD examines laser-propelled “Lightcraft” as a possible low-cost method to launch very small satellites into low Earth orbit by using a remote high-energy laser to supply most of the propulsion energy rather than relying entirely on onboard energy sources. The report combines a survey of nanosatellite trends with a review of “Lightcraft” propulsion concepts, vehicle design, beam-control requirements, and mission studies, and argues that the most promising application is the launch of nano- or pico-satellites, especially Earth- and space-observing payloads of a few kilograms or less. It presents the concept as potentially much cheaper than conventional multistage rockets for very small payloads, while also noting significant practical constraints including strict beam-riding geometry, atmospheric losses, demanding pointing and adaptive-optics requirements, and heavy dependence on large ground-, sea-, or air-based laser infrastructure. Overall, the document presents laser “Lightcraft” as a technically plausible launch concept whose attractiveness depends on whether the supporting laser and beam-control system can be made reliable and economical at operational scale.
UNCLASSIFIED/ /fOR. 8FFl&IAk W&li ,>all.¥ associated with a particular nanosat. Constellations that fly in close formation can benefit by the use of inter-nanosat commun ications to reduce ground station contention. The data wou ld flow from a single nanosat to the ground instead of coming from every nanosat. Communications protocols for inter-nanosat communications must be developed. AUTONOMY Support costs are high if single-satellite mission operations and data analysis practices are scaled to a constellation mission. Autonomy onboard the spacecraft and on the ground is therefore required to ensure that mission objectives are efficiently and inexpensively met. Nanosat autonomy will make use of onboard and ground-based remote agents with the overarching goal of maximizing the scientific or intelligence return from each nanosat during the mission lifetime. The remote agents achieve this goal by monitoring and appropriately controlling nanosat subsystems. Additionally, the onboard agent monitors the full complement of spacecraft sensors and instruments to heuristically separate scientific or intelligence events of interest from background events, thereby intelligently fitting the science/intelligence data within allocated spacecraft storage resources. Nanosats with distant orbits are out of communications range of a ground station for nearly a week. Nanosat subsystems cou ld be compromised if faults occurring during this blackout period were not readily addressed. An unacceptable loss of scientific or intelligence data could also occur. Therefore, the onboard agent will incorporate the capability to detect, diagnose, and recover from faults. Certain failure scenarios may not be correctable by the onboard agent. These faults will be deferred to the ground agent for handling. Each nanosat will include data in its telemetry on the health and status of each subsystem and a history of commands autonomously issued since the last ground contact. The ground system will then attempt to diagnose problems based on this data. Additionally, collective knowledge of actions taken by all nanosats in the constellation will reside within the ground system by virtue of the data dumps made during each contact. From this data the agent can detect trends and systematic conditions not otherwise observable onboard the nanosat. These highly autonomous systems will present a unique set of challenges not only to the system designers, but also to those involved in spacecraft testing. Careful consideration must be given to the design of the test program to ensure that the state space of the remote agents is validated and verified. It is equally important to implement this program in a cost-effective manner. However, we could likely justify deploying considerable resources to address this issue since the methods developed to solve these challenges can be applied to numerous missions. UNCLASSIFIED,<,<FOA QFFI&IAL HSI!! OHLY
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 77 pages are in the text index: search them above, or from the library's search.