The non-contextual content of a WITSML Trajectory object. Whether or not the trajectory is growing. True ("true" or "1") indicates the that the trajectory is still growing in size (that is, trajectoryStation values are still being added). For example, it may be connected to a realtime stream. False ("false" or "0") indicates that the trajectory is closed (that is, no further trajectoryStation values will be added). Not given indicates that the status of the trajectory is not known. This value is only relevant within the context of a server. If a trajectory is tied into another trajectory, a pointer to the parent trajectory. The trajectory may be in another wellbore. Start date and time of trajectory station measurements. Note that this is NOT a server query parameter. End date and time of trajectory station measurements. Note that this is NOT a server query parameter. Minimum measured depth of trajectory. This is a query parameter. It's value will be populated by the server to reflect the values of md in the returned trajectoryStations. Maximum measured depth of trajectory. This is a query parameter. It's value will be populated by the server to reflect the values of md in the returned trajectoryStations. Name of contractor who provided the service. Magnetic declination used to correct a magnetic survey. Starting value if stations have individual values. Grid correction used to correct a survey. Starting value if stations have individual values. Azimuth used for vertical section plot/computations. Origin north-south used for vertical section plot/computations. Origin east-west used for vertical section plot/computations. True ("true" or "1") indicates that this trajectory is definitive for this wellbore. False ("false" or "0") or not given indicates otherwise. There can only be one trajectory per wellbore with definitive=true and it must define the geometry of the whole wellbore (surface to bottom). The definitive trajectory may represent a composite of information in many other trajectories. A query requesting a subset of the possible information can provide a simplistic view of the geometry of the wellbore. Is trajectory a result of a memory dump from a tool? Values are "true" (or "1") and "false" (or "0"). Is trajectory a final or intermediate/preliminary? Values are "true" (or "1") and "false" (or "0"). Specifies the definition of north. While this is optional because of legacy data, it is strongly recommended that this always be specified. Container element for trajectory station elements.