NOAA-15: Difference between revisions
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== Logs: == | == Logs: == | ||
[https://drive.google.com/file/d/1m_J-dO5jkGmvYFE8oMG0VvU0Imub0bUA/view?usp=sharing 28th October 2026] | [https://drive.google.com/file/d/1m_J-dO5jkGmvYFE8oMG0VvU0Imub0bUA/view?usp=sharing 28th October 2026] | ||
[https://drive.google.com/file/d/1-3tm-Uw2WpFVRvxYU6CLLEdM3uV4V7ro/view?usp=sharing 29th October 2026] | |||
== Launch == | == Launch == | ||
Latest revision as of 15:37, 30 October 2026
NOAA-15, also known as NOAA-K before launch, was a polar-orbiting, NASA-provided Television Infrared Observation Satellite (TIROS) series weather forecasting satellite operated by National Oceanic and Atmospheric Administration (NOAA). NOAA-15 was the latest in the Advanced TIROS-N (ATN) series. It provided support to environmental monitoring by complementing the NOAA/NESS Geostationary Operational Environmental Satellite program (GOES).
Images[edit | edit source]
On NOAA POES system satellites, the two images are 4 km / pixel smoothed 8-bit images derived from two channels of the advanced very-high-resolution radiometer (AVHRR) sensor. The images are corrected for nearly constant geometric resolution prior to being broadcast; as such, the images are free of distortion caused by the curvature of the Earth.
Of the two images, one is typically long-wave infrared (10.8 micrometers) with the second switching between near-visible (0.86 micrometers) and mid-wave infrared (3.75 micrometers) depending on whether the ground is illuminated by sunlight. However, NOAA can configure the satellite to transmit any two of the AVHRR's image channels.
Frequencies[edit | edit source]
NOAA 15 - 137.620 MHz
Example of transmission:[edit | edit source]
Logs:[edit | edit source]
Launch[edit | edit source]
It was launched by the Titan 23G launch vehicle on 13 May 1998 at 15:52:04 UTC from Vandenberg Air Force Base, at Vandenberg Space Launch Complex 4 (SLW-4W), NOAA-15 replaced the decommissioned NOAA-12 in an afternoon equator-crossing orbit and is in 2021 semi-operational, in a Sun-synchronous orbit (SSO), at 808.0 km above the Earth, orbiting every 101.20 minutes.
Spacecraft[edit | edit source]
The goal of the NOAA/NESS polar orbiting program is to provide output products used in meteorological prediction and warning, oceanographic and hydrologic services, and space environment monitoring. The NOAA-I Advanced TIROS-N spacecraft is based on the Defense Meteorological Satellite Program (DMSP Block 5D) spacecraft and is modified version of the TIROS-N spacecraft (NOAA-1 to NOAA-5). The spacecraft structure consists of four components: 1° the Reaction System Support (RSS); 2° the Equipment Support Module (ESM), which has been expanded from the TIROS-N design; 3° the Instrument Mounting Platform (IMP); and 4° the Solar Array (SA).
End of Mission in Real life[edit | edit source]
In April 2025, NOAA announced that they would suspend POES data - data from NOAA-15 and NOAA-19 - on June 16, 2025, and decommission NOAA-15 on August 12, 2025.
However, on August 9 NOAA-19 encountered a battery failure and was decommissioned early on August 13. As a result, the decommissioning date of NOAA-15 was extended until the week of August 18. NOAA will not deorbit the satellite. Instead, it has been left in orbit and put into a safe electrical state, with the transmitters shut down. NOAA-15 was ultimately decommissioned on August 19, 2025, on at 20:37 UTC.