NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
NOTE: The nws-changes mailing list is no longer active. The list archives are made available for historical reasons.
Topic: Midnight Blackbody Calibration Correction 11/15/03 Message Issued: October 24, 2003, 1810 UTC Satellites Impacted: GOES-10 and GOES-12 Products Impacted: GOES-10 and GOES-12 Imager Infrared Data Date/Time of Initial Impact: November 15, 2003 Local Midnight *TENTATIVE* -------------------------- Details: On or about November 15, 2003, the real-time on-orbit calibration of the GOES Imagers will be improved by the addition of a routine to correct for the detrimental effect of solar heating on the calibration around local midnight. This effect has been observed since the launch of GOES-8 in 1994. When the Midnight Blackbody Calibration Correction (MBCC) becomes operational, you will notice an increase in observed brightness temperatures near local midnight, primarily in channel 2 (3.8 um), but also to a lesser extent in the longer wavelength channels. The maximum increases will be approximately 1K in channel 2 (typical change: 0.5K), and much less in the other channels. *** The date of the MBCC becoming operational (11/15/03) is tentative pending further tests of the upgraded SPS units. *** If there is a change in this date, we will send another notice to users. Additional information can be found at http://www.oso.noaa.gov/goes/goes-calibration/errors.htm and http://www.oso.noaa.gov/goes/goes-calibration/blackbody/index.htm --------------------------- Contact Information: Brian Hughes / Tom Renkevens Satellite Services Division NOAA/NESDIS/OSDPD 301-763-8051 x106 / x109 Brian.Hughes@xxxxxxxx Thomas.Renkevens@xxxxxxxx See http://www.ssd.noaa.gov/PS/SATS/messages.html for this and other
nws-changes archives: