NOAA-18

NOAA-18
Computer-generated image of NOAA-18 in orbit
Mission type Weather satellite
Operator NOAA
COSPAR ID 2005-018A
SATCAT no. 28654
Mission duration 2 years[1]
Spacecraft properties
Spacecraft type TIROS-N
Manufacturer Lockheed Martin
Launch mass 1,457 kilograms (3,212 lb)[2]
Power 830 watts[3]
Start of mission
Launch date May 20, 2005, 10:22:01 (2005-05-20UTC10:22:01Z) UTC[4]
Rocket Delta II 7320-10C
Launch site Vandenberg SLC-2W
Orbital parameters
Reference system Geocentric
Regime Sun-synchronous
Semi-major axis 7,230.05 kilometers (4,492.54 mi)[5]
Eccentricity 0.0014261[5]
Perigee 848 kilometers (527 mi)[5]
Apogee 869 kilometers (540 mi)[5]
Inclination 99.17 degrees[5]
Period 101.97 minutes[5]
Epoch January 24, 2015, 12:53:56 UTC[5]
Advanced TIROS-N

NOAA-18, known before launch as NOAA-N, is a weather forecasting satellite run by NOAA. NOAA-N (18) was launched on May 20, 2005,[6] into a sun-synchronous orbit at an altitude of 854 km above the Earth, with an orbital period of 102 minutes.[7] It hosts the AMSU-A, MHS, AVHRR, Space Environment Monitor SEM/2 instrument and High Resolution Infrared Radiation Sounder (HIRS) instruments, as well as the SBUV/2 ozone-monitoring instrument.[8] It is the first NOAA POES satellite to use MHS in place of AMSU-B.

APT transmission frequency is 137.9125 MHz (NOAA-18 changed frequencies with NOAA-19 on June 23, 2009).[9]

References

  1. Krebs, Gunter. "NOAA 18, 19 (NOAA N, N')". Gunter's Space Page. Retrieved December 9, 2013.
  2. "NOAA 18". National Space Science Data Center. Retrieved December 9, 2013.
  3. "UCS Satellite Database". Union of Concerned Scientists. Retrieved December 8, 2013.
  4. McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved December 9, 2013.
  5. 1 2 3 4 5 6 7 "NOAA 18 Satellite details 2005-018A NORAD 28654". N2YO. January 24, 2015. Retrieved January 25, 2015.
  6. "NOAA-N Prime" (PDF). NP-2008-10-056-GSFC. NASA Goddard Space Flight Center. December 16, 2008. Archived from the original (PDF) on February 16, 2013. Retrieved October 8, 2010.
  7. "Spacecraft Status Summary". Archived from the original on November 18, 2010. Retrieved October 8, 2010.
  8. "NOAA-N" (PDF). Osd.noaa.gov. Archived from the original (PDF) on March 2, 2012. Retrieved March 7, 2016.
  9. "software to decode APT and WEFAX signals from weather satellites". WXtoImg. Retrieved March 7, 2016.


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