TRECS is a sophisticated, labor-saving tool designed to support payload reconfiguration and command procedure generation in the satellite payload operations factory testing and in-orbit test environments. TRECS enables payload and test engineers to visualize and modify complex satellite system configurations. When the desired reconfiguration is set, TRECS generates a valid spacecraft procedure ...

Multiple factors complicate the analysis of animal telemetry location data. Recent advancements address issues such as temporal autocorrelation and telemetry measurement error, but additional challenges remain. Difficulties introduced by complicated error structures or barriers to animal movement can weaken inference. We propose an approach for obtaining resource selection inference from animal...

Wildlife telemetry research has expanded greatly in the last 2 decades, with the application of satellite tracking and archival logging technologies to study the ecology and conservation of marine mammals, birds, fishes, and turtles. Widespread and expanding use of satellite tracking to study movements and habitats of marine megavertebrates warrants a review of progress to date and a discussion...

This paper proposes a data-driven health monitoring / anomaly detection method for spacecraft systems. Especially, we focus on some common properties spacecraft telemetry data has, such as highdimensionality, multi-modality and periodicity. The proposed method first monitors the static relationships among a number of variables contained in the telemetry by hybrid of clustering and dimensionalit...

BACKGROUND Pinnipeds, including many phocid species of concern, are inaccessible and difficult to monitor for extended periods using conventional, externally attached telemetry devices that are shed during the annual molt. Archival satellite transmitters were implanted intraperitoneally into three stranded Pacific harbor seal pups (Phoca vitulina richardii) that completed rehabilitation, to eva...

Ground-support based satellite health monitoring and fault diagnosis practices involve around-theclock limit-checking and trend analysis on large amount of telemetry data. They do not scale well for future multi-platform space missions due to the size of the telemetry data and an increasing need to make the long-duration missions costeffective by limiting the operations team personnel. To utili...

BACKGROUND Pinnipeds, including many endangered and declining species, are inaccessible and difficult to monitor for extended periods using externally attached telemetry devices that are shed during the annual molt. Archival satellite transmitters were implanted intraperitoneally into four rehabilitated California sea lions (Zalophus californianus) and 15 wild juvenile Steller sea lions (Eumeto...

Rescuing a satellite once it has been launched is very difficult. Because we can only obtain information about a satellite by telemetry from the satellite itself, we cannot obtain any more information once a satellite has failed. Furthermore, space debris reentering the atmosphere is becoming a significant problem because the number of satellites is increasing. Therefore, we are currently study...

In recent years, the use of intrinsic markers such as stable isotopes to link breeding and foraging grounds of migratory species has increased. Nevertheless, several assumptions still must be tested to interpret isotopic patterns found in the marine realm. We used a combination of satellite telemetry and stable isotope analysis to (i) identify key foraging grounds used by female loggerheads nes...

Young sea turtles use the Earth's magnetic field as a source of navigational information during their epic transoceanic migrations and while homing. A new study using satellite telemetry has now demonstrated for the first time that adult turtles also navigate using the Earth's magnetic field.