Advancements in large format infrared (IR) focal plane technologies have created the opportunity for implementing Wide Field of View (WFOV)Overhead Persistent IR (OPIR) sensors for the missile surveillance mission. The Commercially Hosted Infrared Payload (CHIRP) is a capability-based risk-reduction pathfinder project whose purpose is to assess the risks and opportunities of designing, building and testing complex DoD experiments as secondary payloads on commercial spacecraft, within a predefined cost and schedule envelope. CHIRP will also demonstrate the ability to build and integrate components needed for a WFOV sensor, understand WFOV Staring IR phenomenology, and quantify performance levels of WFOV staring systems in a flight environment. This paper discusses the tradeoffs involved in committing to a commercially hosted mission, and the challenges in tailoring a mission assurance process for a flight demonstration. On-orbit testing of CHIRP is currently scheduled to occur in mid-2011.
Beckwith-Wiedemann syndrome (BWS) is an overgrowth syndrome characterized by neonatal hypoglycemia, abdominal wall defects, macroglossia, organomegaly, ear pits and creases, hemihypertrophy, and increased birthweight. Children with BWS have an increased risk of malignancy. The authors present the case of a 3-year-old boy diagnosed with both BWS and acute lymphocytic leukemia (ALL). This case report will elaborate on the possibilities as to how BWS and ALL may be associated due to abnormal genomic imprinting and IGF dysregulation.
The main System Safety issue facing several Air Force satellite acquisition programs is non-compliance of the contractor's System Safety Program (SSP) with regard to Air Force Instruction (AFI) Orbital Safety requirements. Prior to June 2006, the majority of defense satellite contractors believed it was acceptable to limit their on-orbit hazard analysis effort to considering potential collisions between man-made objects. They believed that the routine Mission Assurance analyses, excluding hazard analysis, could cost-effectively mitigate the risk of on-orbit mishaps due to safety-critical hazards if the USAF would give them relief from requirements to deliver "non-value-added" military standard/handbook data products. This belief was not openly challenged by the SMC Central Safety Office until 2006. Today, the SMC Central Safety Office ensures all Air Force satellite acquisition programs are aware that the contractor's SSP must be AFI Orbital Safety compliant, which includes producing documented evidence that the on-orbit operations hazard analysis is completed. To facilitate this awareness leading to appropriately managed SSPs, each Air Force satellite acquisition program has an appointed System Safety Manager (SSM) who represents and reports directly to the Acquisition Program Manager. All SSMs are thoroughly familiar with the Orbital Safety "bible" AFI 91-202, Air Force Space Command (AFSPC) Supplement 1, The US Air Force Mishap Prevention Program [1]. This AFI defines the criteria for an appropriate Orbital Safety effort. However, contractors are not required to follow any AFI policy elements that are not included in the contract. Often the only tool available to the SSM to initiate an AFI compliant Orbital Safety effort is a tailored MIL-STD-882C [2] that is on contract. One might assume that this tool alone would be sufficient to guarantee an AFI compliant Orbital Safety effort. Nonetheless, defense satellite acquisition history has shown this assumption to be false. Rather, there are additional tools, in the form of seven Orbital Safety key principles, which Air Force satellite acquisition programs must adopt to ensure their contractor's System Safety Program Plan (SSPP) fully addresses AFI policies. These seven principles are best captured in the acquisition program's System Safety Management Plan (SSMP), but they also can be effectively implemented through an Air Force Operating Instruction (OI). This paper answers the question, "How can the SSMP be tailored to assure the Acquisition Program Manager that the Orbital Safety effort is AFI compliant?"
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