PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2017-07-13 NOTE = "N/A" END_OBJECT = TEXT END Volume DWNVVIR_2 Dawn VIR Derived Vesta Global Mosaics V1.0 Archive ============================================================================== Brief Volume Description ============================================================================== This volume contains global mosaics of the Dawn VIR band centers and depths of pyroxene absorption bands, located at 0.9 (band I) and 1.9 microns (band II), from the Vesta encounter. The data set was acquired during the (High Altitude Mapping Orbit (HAMO), Low Altitude Mapping Orbit (LAMO), and HAMO-2) mapping phases between 2011-09-30 and 2012-07-24 . NOTE: Reading the Science Plan (located in the /DOCUMENT/SCIENCE_PLAN directory) is critical to the understanding of the Vesta observations and science objectives. Other critical documentation in the DOCUMENT directory include the volume SIS and calibration procedure. These data have been decompressed, decoded, and formatted into scientifically useful data structures from the original raw telemetry packets. These products, along with their required PDS documentation, form the level-1a data sets (EDRs). The EDRs are then calibrated using the procedure defined in the VIR_CALIBRATION document by using the calibration files found in the CALIB directory on the level-1b volumes. VIR data provided in radiance units were next converted into reflectance in order to calculate the spectral parameters, some of which are provided here as global mosaics. All data files are stored in the 'DATA' branch of the directory tree. The data are organized into subdirectories by phase and activity. JPEG images of the data files can be found in the 'BROWSE' directory. A brief overview of the mission phases and activities (including the start times and names used in the DATA subdirectories is provided in the 'Dawn Science Observations' table below. ============================================================================== Mission Facts ============================================================================== The 'Dawn Science Observations' table below provides a partial list of scientific observations made by the Dawn instruments used to produce these mosaics. It includes the observation start date, the ID of the phase in which it occurred, the activity name, and a brief description. ------------------------------------------------------------------------------ Dawn Science Observations ------------------------------------------------------------------------------ Start Mission Activity Activity Date Phase Name Description ============================================================================== ------------------------------------------------------------------------------ 11-09-29 VSH HAMO Vesta Science HAMO Phase (average range ~950 km) ------------------------------------------------------------------------------ 11-09-29 VSH CYCLE1 10 orbits of ride-along pushbroom to FC nadir imaging 11-10-06 VSH CYCLE2 9 orbits of ride-along pushbroom to FC off-nadir imaging 11-10-11 VSH CYCLE3 10 orbits of ride-along cubes and pushbroom to FC off-nadir imaging 11-10-16 VSH CYCLE4 10 orbits of ride-along cubes and pushbroom to FC off-nadir imaging 11-10-21 VSH CYCLE5 10 orbits of ride-along cubes and pushbroom to FC off-nadir imaging 11-10-26 VSH CYCLE6 10 orbits of ride-along pushbroom to FC nadir imaging ------------------------------------------------------------------------------ 11-12-12 VSL LAMO Vesta Science LAMO Phase (average range ~465 km) ------------------------------------------------------------------------------ 11-12-13 VSL CYCLE1 VIR powered off 11-12-17 VSL CYCLE2 VIR powered off 11-12-24 VSL CYCLE3 VIR powered off 11-12-31 VSL CYCLE4 VIR powered off 12-01-07 VSL CYCLE5 7 orbits (2 VIS+IR 5 VIS-only) VIR full-slit pushbroom cubes 12-01-14 VSL CYCLE6 S/C safing - no FC or VIR data acquired 12-01-21 VSL CYCLE7 7 orbits (2 VIS+IR 5 VIS-only) VIR full-slit pushbroom cubes 12-01-28 VSL CYCLE8 7 orbits (2 VIS+IR 5 VIS-only) VIR full-slit pushbroom cubes 12-02-04 VSL CYCLE9 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-02-11 VSL CYCLE10 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-02-18 VSL CYCLE11 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-02-25 VSL CYCLE12 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-03-03 VSL CYCLE13 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-03-10 VSL CYCLE14 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-03-17 VSL CYCLE15 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-03-24 VSL CYCLE16 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-03-31 VSL CYCLE17 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-04-07 VSL CYCLE18 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-04-14 VSL CYCLE19 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-04-21 VSL CYCLE20 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes 12-04-28 VSL CYCLE21 4 orbits (2 full slit 2 quarter slit) VIR VIS-IR pushbroom cubes ------------------------------------------------------------------------------ 12-06-15 VH2 HAMO_2 Vesta Science HAMO Phase (average range ~950 km) ------------------------------------------------------------------------------ 12-06-15 VH2 C0_OFFNADIR1 C0 10 orbits of VIR VIS+IR pushbroom cubes in the northern hemisphere and the south pole 12-06-20 VH2 C0_OFFNADIR2 C0 7 orbits of VIR VIS+IR pushbroom cubes in the northern hemisphere 12-06-24 VH2 CYCLE1 10 orbits of VIR VIS+IR pushbroom cubes in the southern hemisphere 12-06-29 VH2 CYCLE2 10 orbits of VIR VIS+IR pushbroom cubes in the southern hemisphere 12-07-04 VH2 CYCLE3 10 orbits of VIR VIS+IR pushbroom cubes in the equatorial region 12-07-09 VH2 CYCLE4 10 orbits of VIR VIS+IR pushbroom and scan-mirror cubes in the northern hemisphere 12-07-14 VH2 CYCLE5 10 orbits of VIR VIS+IR pushbroom cubes in the equatorial region 12-07-20 VH2 CYCLE6 10 orbits of VIR VIS+IR pushbroom cubes in the northern hemisphere ============================================================================== File Formats ============================================================================== The data files on this volume are PC binary floating point images described by detached PDS labels. The PDS label is an ASCII file containing information describing spacecraft, target, and observation parameters characterizing the associated data file. A data set description, instrument description, and other PDS documents are in .CAT files in the /CATALOG directory. In more recent versions of the Microsoft Windows operating system the .CAT by default is reserved as 'Security Catalog.' The .CAT files contained in this volume are ASCII text files, and can be read by any form of text editor. To make Windows open files with this name extension as text files right click the .CAT file, select with and choose a text editor to open the file. Additional documentation is located in the DOCUMENT directory. ============================================================================== Errata ============================================================================== Every effort has been made to assure that the data and documentation are of the best possible quality. However, mistakes are inevitable. There is a file called ERRATA.TXT found at the root level of this volume which contains a list of known deficiencies or caveats associated with data on this volume at the time this volume was produced. ============================================================================== Volume Contents and Structure ============================================================================== This section describes the volume structure and naming conventions. Below is a tree diagram of the volume, followed by a description of the directory function and key files in each directory. DWNVVIR_V1B (root directory) | |- AAREADME.TXT Describes volume contents, and organization (this file) | |- ERRATA.TXT Describes known deficiencies or caveats in the data on | this volume. | |- VOLDESC.CAT High level description of volume contents. | |- [CATALOG] PDS catalog files containing information describing the | data, instrument, instrument personnel, relevant references, | the spacecraft, and mission. | |- [DATA] Contains the 4 data files and their labels. | |- [BROWSE] Contains JPEG images of the data files and their labels. | |- [DOCUMENT] Contains documents important to the understanding and use | of the data on this archive volume. | | |- [INDEX] Contains a list of all data products on this volume and a a list of geometric parameters associated with each product. ============================================================================ Contacts ============================================================================ This volume was produced for the Planetary Data System (PDS) at the Small Bodies node. The images, and associated metadata were supplied by Dr. Angioletta Coradini at the Istituto Nazionale Di Astrofisica (INAF). The volume was assembled at the Dawn Science Center (DSC), by Joseph N. Mafi. For questions or problems regarding the volume, please contact Dr. Carol Neese at the PDS Small Bodies Node: Email neese@psi.edu Telephone 520-622-6300 Mail Carol Neese Planetary Science Institute 1700 E. Ft. Lowell, Ste. 106 Tuscon, AZ 85719-2395 USA For question regarding the data, please contact Dr. Maria Cristina De Sanctis at INAF: Internet mariacristina.desanctis@iaps.inaf.it Telephone +39 06 499344448 Mail Area di Ricerca di Tor Vergata via del Fosso del Cavaliere, 100 00133 Rome Italy For questions regarding PDS Standards or other archives available from the PDS, please contact PDS Operator at the PDS Engineering Node (at JPL): Email pds_operator@jpl.nasa.gov Telephone 818-354-4321 Mail Planetary Data System, PDS Operator Jet Propulsion Laboratory Mail Stop 202-101 4800 Oak Grove Dr. Pasadena, CA 91109-8099 USA The PDS assumes no legal liability for errors on this disk. All users are encouraged to verify the correctness of the data prior to submitting any publications or other work based on these data. Please report errors on this disk to the Small Bodies Node of the PDS through the ERRATA reporting procedures described above.