GOES8 Data Missing Because of Satellite Problem

The data was missing over this time period because of a 
problem with the satellite - note discussion below
Subject: URGENT! GOES-8 outage to continue
From: jhawkins@nesdis.noaa.gov (Jamie Hawkins)
Date: Thu, 9 Jan 1997 16:34:14 +0500

NOAA continues to analyze the GOES-8 problem, which now seems to be
unrelated to an electrostatic discharge.  Data now indicate that the
attitude and orbit control computer (AOCE#2) is not receiving telemetry from
one of two momentum wheels which keep the spacecraft facing the earth
propoerly.  A fix has been identified which will require using a back-up
momentum wheel configuration known as L2.  

To begin L2 operations, NOAA will bring GOES-8 out of safe hold at
approximately 5:00PM EST (22:00UTC) tomorrow, Friday January 10th.  About
two hours later, around 7:00 PM EST (00:00 UTC Saturday), imager and sounder
GVAR data should begin flowing from the satellite.  Operational products
from NOAA for the National Weather Service should resume at that time.  

However, ALL USERS SHOULD NOTE that it may take 48 hours or longer for
accurate navigation and registration to return to GOES-8 imagery.

We will keep you informed of any chnages in this scheduled fix during the
day Friday.


Jamison Hawkins
NOAA/NESDIS
GOES Product Manager
301-457-5125

• line(line)
• sat_zenith(sat_zenith)
• sun_zenith(sun_zenith)
• rel_azimuth(rel_azimuth)
• sample(sample)
• gvar_ch1(gvar_ch1)

• sat_zenith(sat_zenith)
• gvar_ch5(gvar_ch5)
• gvar_ch4(gvar_ch4)
• GVAR Channel 3(gvar_ch3)
• sample(sample)
• gvar_ch2(gvar_ch2)
• gvar_ch1(gvar_ch1)
• line(line)
• rel_azimuth(rel_azimuth)
• sun_zenith(sun_zenith)

• cloud amount(Cloud_Amount)
• clear IR temperature(Clear_Temperature)
• cloud narrowband albedo(Albedo)
• clear IR temperature standard deviation(Clear_Temperature_SD)
• cloud center temperature(Cloud_Center_Temperature)
• lon(lon)
• narrowband IR flux for clear and total scene(Narrowband_IR_Flux)
• uncorrected cloud temperature(Cloud_Temperature)
• total scene average temperature(Average_Total_Temperature)
• visible cloud optical depth(Visible_Optical_Depth)
• cloud center height(Cloud_Center_Height)
• heights of the boundaries of each layer(level)
• broadband LW flux for clear and total scene(Broadband_LW_Flux)
• East longitude(longitude)
• visible optical depth standard deviation(Visible_Optical_Depth_SD)
• IR beam cloud emissivity(Emissivity)
• cloud top temperature(Cloud_Top_Temperature)
• IR cloud optical depth(IR_Optical_Depth)
• clear narrowband VIS reflectance(Clear_VIS_Reflectance)
• clear narrowband VIS albedo standard deviation(Narrowband_VIS_Albedo_SD)
• cloud thickness estimate(Cloud_Thickness)
• Time offset from base_time(time_offset)
• cloud center temperature standard deviation(Cloud_Center_Temperature_SD)
• relative azimuth angle(Relative_Azimuth_Angle)
• viewing zenith angle(Viewing_Zenith_Angle)
• broadband SW albedo for clear and total scene(Broadband_SW_Albedo)
• base time in epoch(base_time)
• narrowband VIS albedo for clear and total scene(Narrowband_VIS_Albedo)
• North Latitude(lat)
• cloud top height(Cloud_Top_Height)
• cloud narrowband reflectance at TOA(Reflectance)
• scene description(view)
• -180.0 - +180.0(alt)
• solar zenith angle(Solar_Zenith_Angle)
• North latitude(latitude)

• visible cloud optical depth(Visible_Optical_Depth)
• uncorrected cloud temperature(Cloud_Temperature)
• clear narrowband VIS reflectance(Clear_VIS_Reflectance)
• North latitude(latitude)
• cloud center temperature standard deviation(Cloud_Center_Temperature_SD)
• cloud thickness estimate(Cloud_Thickness)
• lon(lon)
• cloud amount(Cloud_Amount)
• viewing zenith angle(Viewing_Zenith_Angle)
• base time in epoch(base_time)
• cloud center height(Cloud_Center_Height)
• cloud narrowband reflectance at TOA(Reflectance)
• clear IR temperature standard deviation(Clear_Temperature_SD)
• -180.0 - +180.0(alt)
• narrowband IR flux for clear and total scene(Narrowband_IR_Flux)
• clear narrowband VIS albedo standard deviation(Narrowband_VIS_Albedo_SD)
• relative azimuth angle(Relative_Azimuth_Angle)
• East longitude(longitude)
• total scene average temperature(Average_Total_Temperature)
• North Latitude(lat)
• heights of the boundaries of each layer(level)
• Time offset from base_time(time_offset)
• IR beam cloud emissivity(Emissivity)
• clear IR temperature(Clear_Temperature)
• broadband SW albedo for clear and total scene(Broadband_SW_Albedo)
• cloud narrowband albedo(Albedo)
• visible optical depth standard deviation(Visible_Optical_Depth_SD)
• cloud top temperature(Cloud_Top_Temperature)
• broadband LW flux for clear and total scene(Broadband_LW_Flux)
• solar zenith angle(Solar_Zenith_Angle)
• cloud center temperature(Cloud_Center_Temperature)
• IR cloud optical depth(IR_Optical_Depth)
• narrowband VIS albedo for clear and total scene(Narrowband_VIS_Albedo)
• cloud top height(Cloud_Top_Height)
• scene description(view)