NSSDCA ID: PSSB-00077
Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)
Time span: 2005-05-01 to 2005-07-09
This data set contains raw, comet 9P/Tempel 1 spectral images and science calibration data acquired by the Deep Impact High Resolution Infrared Spectrometer (HRII) during the encounter phase of the mission. These data were collected from May 1 through July 9, 2005.
The data are stored as two-dimensional FITS image files. The FITS images were created by the Deep Impact Science Data Center (SDC) at Cornell University and were assembled from raw telemetry packets sent down by the Flyby spacecraft. Information from the imbedded headers was extracted and stored in the primary FITS header. Geometry parameters were computed using SPICE kernels and the results were stored in the FITS header. If telemetry packets were missing, the corresponding pixels were flagged as missing in the FITS extension called the image quality map. The primary data array contains the image; an image extension contains a pixel-by-pixel quality map that matches the number rows and columns of the primary image. Each FITS file is described by a detached PDS label. The target name in the image labels is set to the intended target. The volume includes thumbnail images and a browse directory.
The naming convention for the image labels and FITS files is HVcccccccccc_iiiiiii_nnn.lbl/fit where cccccccccc is the s spacecraft clock count at the mid-point of the observation, iiiiiii is the exposure ID (OBSERVATION_ID in image labels), and nnn is the order of the image with an exposure ID sequence The volume has been formatted according to the ISO-9660 level 2 Interchange Standard. This is PDS data set DIF-C-HRII-2-9P-ENCOUNTER-V1.0 contained on DVD volumes DIHI9P_2001 - DIHI9P_2002.
Questions and comments about this data collection can be directed to: Dr. David R. Williams
Name | Role | Original Affiliation | |
---|---|---|---|
Ms. Anne C. Raugh | Data Provider | University of Maryland | araugh@umd.edu |
Dr. Brian Carcich | General Contact | Cornell University | carcich@astro.cornell.edu |
Dr. Michael F. A'Hearn | General Contact | University of Maryland |