The system is configured to generate a display of a tagging interface. The tagging interface may include a stitching selector. In response to a user selection of (1) a destination element that includes a first name identifier, (2) a source element that includes at least one of the plurality of pixels such that at least one of the plurality of pixels corresponding to longitude-time points comprising a second name identifier, and (3) the stitching selector, the system can be configured to indicate that the source element comprises the first name identifier.

When calculating a gimbal angle trajectory that satisfies boundary conditions set by an attitude boundary condition setter 2131 of the ground station 21, a gimbal angle trajectory calculator 2132 calculates the gimbal angle trajectory that minimizes a period of an acceleration interval within a range that satisfies driving restrictions of a gimbal, based on a gimbal angle θ.sub.0i of a start time and a gimbal angle θ.sub.ci of a fixed interval of an attitude change. Also, the gimbal angle trajectory is calculated that minimizes a period of a deceleration interval within a range that satisfies the driving restrictions of the gimbal, based on the gimbal angle θ.sub.ci of the fixed interval and a gimbal angle θ.sub.fi of a completion time of the attitude change. The obtained θ.sub.0i, θ.sub.ci, θ.sub.fi and an attitude change period τ are transmitted to the artificial satellite as gimbal angle trajectory parameters, and the control moment gyros are controlled based on the gimbal angle trajectory parameters.

When calculating a gimbal angle trajectory that satisfies boundary conditions set by an attitude boundary condition setter 2131 of the ground station 21, a gimbal angle trajectory calculator 2132 calculates the gimbal angle trajectory that minimizes a period of an acceleration interval within a range that satisfies driving restrictions of a gimbal, based on a gimbal angle θ.sub.0i of a start time and a gimbal angle θ.sub.ci of a fixed interval of an attitude change. Also, the gimbal angle trajectory is calculated that minimizes a period of a deceleration interval within a range that satisfies the driving restrictions of the gimbal, based on the gimbal angle θ.sub.ci of the fixed interval and a gimbal angle θ.sub.fi of a completion time of the attitude change. The obtained θ.sub.0i, θ.sub.ci, θ.sub.fi and an attitude change period τ are transmitted to the artificial satellite as gimbal angle trajectory parameters, and the control moment gyros are controlled based on the gimbal angle trajectory parameters.

A free-floating spherical gimbal (“gimbal”) that includes a moving portion substantially spherical in shape and partially enclosed within a larger spherical and stationary cavity. The moving portion of the spherical gimbal is maintained in a location without direct mechanical contact with the stationary cavity.

A free-floating spherical gimbal (“gimbal”) that includes a moving portion substantially spherical in shape and partially enclosed within a larger spherical and stationary cavity. The moving portion of the spherical gimbal is maintained in a location without direct mechanical contact with the stationary cavity.

Systems and methods are provided for high fidelity long-duration autonomous spacecraft navigation relative to a planet's surface and measuring the dynamics of the planet. For a planet like Earth, embodiments of the present disclosure can be used to estimate the unpredictable components of Earth's orientation with respect to the inertial frame. Embodiments of the present disclosure further enable autonomous landmark navigation by providing systems and methods for satellites to autonomously recognize landmarks, using, for example, multiple computer vision approaches to recognize multiple types of landmarks.

A computer system of the present invention comprises a processor unit, and is configured to be capable of communicating with a user device operated by a first user and a satellite. The satellite includes a religious object and an information providing means for providing information associated with the religious object. The processor unit is configured to execute at least the following: acquiring location data indicating a location on Earth of the first user; acquiring bearing data indicating a bearing; calculating, on the basis of the location data and the bearing data, a time period in which the satellite is located in a predetermined space extending toward the bearing from the location on Earth of the first user; and providing the user device with information associated with the religious object provided by the information providing means of the satellite only during the time period.

A computer system of the present invention comprises a processor unit, and is configured to be capable of communicating with a user device operated by a first user and a satellite. The satellite includes a religious object and an information providing means for providing information associated with the religious object. The processor unit is configured to execute at least the following: acquiring location data indicating a location on Earth of the first user; acquiring bearing data indicating a bearing; calculating, on the basis of the location data and the bearing data, a time period in which the satellite is located in a predetermined space extending toward the bearing from the location on Earth of the first user; and providing the user device with information associated with the religious object provided by the information providing means of the satellite only during the time period.

Metamaterials are described which can be employed with satellites, e.g., small sats, to increase the observability of such satellites. Any type of suitable metamaterial can be used. In exemplary embodiments fractal-based patterns or structures may be used.

Metamaterials are described which can be employed with satellites, e.g., small sats, to increase the observability of such satellites. Any type of suitable metamaterial can be used. In exemplary embodiments fractal-based patterns or structures may be used.