Accession Number : ADA268456


Title :   UVPI Imaging from the LACE Satellite: The Nihka Rocket Plume


Descriptive Note : Interim rept.


Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC


Personal Author(s) : Smathers, H W ; Horan, D M ; Cardon, J G ; Malaret, E R ; Brandenburg, J E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a268456.pdf


Report Date : 12 Jul 1993


Pagination or Media Count : 87


Abstract : The Nihka flight was the first demonstration of the ability of the Ultraviolet Plume Instrument (UVPI), carried abroad the LACE (Low-power Atmospheric Compensation Experiment) satellite, to observe missiles in flight above the atmosphere. The UVPI is a small, plume-tracking instrument flown on the Naval Research Laboratory's LACE satellite, which was launched on 14 February 1990. The Nihka was launched from the Wallops Island Launch Facility in Virginia to coincide with a LACE pass. The two cameras of the UVPI were used to observe the Nihka in the ultraviolet. These cameras were a tracker camera, viewing over a relatively wide field and broad spectrum, and a plume camera that has a narrow field of view (0. 180 deg by 0. 135 deg) and can observe sources through any of four filters. A three-stage sounding rocket (called Black Brant X) was used for the test. The third stage, or Nihka, reached 190 km altitude and was successfully detected and tracked by the UVPI from a range of 448 to 463 km. The Nihka plume was successfully tracked for 3.23 seconds; 91 images of plume data (each 1/30th of a second) were acquired by using the first plume-camera filter in the 235 to 350 nm range.... Nihka rocket, LACE (Low-power Atmospheric Compensation Experiment), Ultraviolet plume instrument, Rocket plume imaging, UVPI.


Descriptors :   *TRACKING , *IMAGES , *PLUMES , *ULTRAVIOLET EQUIPMENT , *SOUNDING ROCKETS , *ROCKET EXHAUST , TEST AND EVALUATION , LOW POWER , GUIDED MISSILES , FLIGHT , ARTIFICIAL SATELLITES , CAMERAS , NAVAL RESEARCH , FILTERS , COMPENSATION , ALTITUDE , RADIOMETRY , ATMOSPHERES , ATMOSPHERICS


Subject Categories : Defense Systems
      Guided Missiles
      Miscellaneous Detection and Detectors
      Combustion and Ignition


Distribution Statement : APPROVED FOR PUBLIC RELEASE