ATP-3-09-02 Field Artillery Survey Download
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Chapter 3 3-14 ATP 3-09.02 16 February 2016 EVALUATION OF SURVEY INFORMATION 3-59. The appropriate level Chief Surveyor must check the field records and computations of the target acquisition platoon survey teams. A survey team operating in the field maintains a field notebook containing a complete record of all fieldwork performed and all DA forms on which computations are performed. On completion of the survey, the field notebook, computation forms, and results of the survey are forwarded to the Chief Surveyor for checking, adjusting, and recording. 3-60. The evaluation process is designed to verify the validity of the survey consists of procedure checks, computation comparison checks, closure checks, and map verification: Procedure check. All computations and values recorded in the field notebook are checked to ensure that proper procedures, specifications, and techniques were used to complete the survey fieldwork to the required accuracy. Computation comparison check. The computations performed by the computers are compared to ensure that both sets of computations agree. Closure check. A check is made to ensure that the survey has been properly closed within fourth- order accuracy. Map verification. If the survey data passes the procedure check, computation check, and closure check, the data are plotted on the largest-scale map available to check both the validity of the survey and the accuracy of the map. If the map plots verify the recorder's field notebook description, the survey is accepted. If the map plots do not verify the recorder's field notebook description, the data are subjected to a complete computation check. If necessary, additional fieldwork is prescribed to determine whether the map or the survey is in error. Any map errors detected by survey personnel performing fieldwork should be noted in the remarks column of the field notebook and reported to higher headquarters through S-2 channels. DISSEMINATION OF SURVEY INFORMATION 3-61. Timely dissemination of survey information is as important as maintaining a complete and accurate survey information file. The operations cell maintains survey information maps and overlays to aid in the rapid dissemination of survey information to units and to aid the S-3 in preparing the survey plan. 3-62. Target acquisition platoon surveyors or their representative should contact or visit the operations cell often to keep abreast of survey plans and to obtain survey control (trigonometric lists) available in their prospective areas of interest. 3-63. The Chief Surveyor should visit the target acquisition platoon often to coordinate and discuss survey operations and requirements. During these visits, he should ensure that the surveyors are aware of available control. 3-64. Survey data can be stored and rapidly transmitted by using digital systems such as an Advanced. Field Artillery Tactical Data System. The unit SOP will dictate the procedures used to access, store, update, and disseminate survey information between echelons. 3-65. Survey information may be disseminated by radio or telephone. However, security requirements must be observed. Radio or telephone communication is the least desirable method of disseminating survey information because of possible errors in transmitting and because of problems in orally describing the survey station sketches shown on DA Form 5075. 3-66. Survey information usually is not disseminated until it has been evaluated and adjusted. During fast- moving situations in areas where limited survey control is available, there may be exceptions. In this case, the Chief Surveyor disseminating the survey data will ensure that the battalion commanders are informed that the data provided is unchecked and unadjusted. When the survey data is turned in to the operations cell, the Chief Surveyor will report which data he has disseminated and to whom. The operations will then ensure that the user gets the adjusted data when they become available.