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NOAA APT weather satellite images recorded by VA3ROM at Thunder Bay, Canada.


Coordinates (latitude, longitude): 48.450, -89.200 (Grid: EN58jk)
Receiver: RTL-SDR USB dongle
Antenna : Reactive turnstile (Ch. 5, Modern Antenna Design) with LNA

APT     APT Satellite Operational Status     Group for Earth Observation     W0MM (Houston) + APT Links


Contrast (IR) Enhanced: Uses sensors 3 (mid infrared) and 4 (thermal infrared) of the pristine image creating a black and white, contrast enhanced infrared (IR) image showing areas of cloud coverage and layer opacities. Available for both local daylight and night satellite passes.

Map Coloured Infrared (MCIR) with Precip: Uses sensor 4 of the pristine image creating a false colour IR image using a colour lookup table (CLUT) showing areas of cloud coverage, layer opacities with precipitation probability and/or intensity. Available for both local daylight and night passes

NO colour (IR) Enhanced: Uses sensor 4 of the pristine image creating a false colour IR image using a CLUT. Greatly increases contrast in darker (warmer) land/sea regions, and colours (colder) cloud tops providing an indication of their temperatures. Available for both local daylight and night passes.

Multi-Spectral Analysis (MSA) with Precip: Uses sensors 1 (visible light) or 2 (near IR) plus sensor 4 of the pristine image creating a near true colour, near visible light image with precipitation probability and/or intensity using a CLUT. Available only for local daylight passes when solar elevation > 15 degrees.

Sea Surface Temperature (SST): Uses sensors 3 and 4 of the pristine image creating a false colour IR image using a CLUT. Only sea temperatures are imaged so any cloud cover blocking the view is coloured white and land is coloured black (their IR temperatures are ignored). Available for both local daylight and night passes.

Thermal: Uses sensors 3 and 4 of the pristine image creating a false colour IR image using a CLUT. Normally, only cloud tops are imaged, but if no clouds are in the way then land and water surface are imaged. Available for both local daylight and night passes.

"Liberty does not exist in the absence of morality. Edmund Burke"

Click any satellite image for full size view. Local dates and times are for the Eastern Time Zone.

Composite contrast
Composite contrast
25 Sep 2018 09:25

Composite MCIR-precip
Composite MCIR-precip
25 Sep 2018 09:25

Composite NO
Composite NO
25 Sep 2018 09:25

Composite sea
Composite sea
25 Sep 2018 09:25

Composite therm
Composite therm
25 Sep 2018 09:25

NOAA 15 Pristine
NOAA 15 Pristine
25 Sep 2018 09:25

Next Scheduled Satellite Passes over Thunder Bay, Canada

Satellite
Name
Start of Pass Time Available Direction Maximum Elevation
Degrees (East or West)
Frequency
MHz
UTC Local Time UTC Local Time
NOAA 15 25 Sep 23:09 25 Sep 19:09 25 Sep 23:25 25 Sep 19:25 137.62
NOAA 15 26 Sep 00:49 25 Sep 20:49 26 Sep 01:04 25 Sep 21:04 137.62
NOAA 15 26 Sep 12:59 26 Sep 08:59 26 Sep 13:16 26 Sep 09:16 137.62
NOAA 15 26 Sep 14:40 26 Sep 10:40 26 Sep 14:54 26 Sep 10:54 137.62
NOAA 15 26 Sep 22:44 26 Sep 18:44 26 Sep 22:59 26 Sep 18:59 137.62
NOAA 15 27 Sep 00:23 26 Sep 20:23 27 Sep 00:40 26 Sep 20:40 137.62
NOAA 15 27 Sep 12:34 27 Sep 08:34 27 Sep 12:51 27 Sep 08:51 137.62
NOAA 15 27 Sep 14:14 27 Sep 10:14 27 Sep 14:30 27 Sep 10:30 137.62