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ITOS

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Tiros-OTS Credit: NASA

AKA: Improved TIROS Operational System. Status: Operational 1970. First Launch: 1970-01-23. Last Launch: 1976-07-29. Number: 8 . Gross mass: 330 kg (720 lb). Height: 1.22 m (4.00 ft). Span: 4.30 m (14.10 ft).

The program was initially managed by the ESSA (Environmental Science Services Administration). NOAA later became the managing organization. The spacecraft was 3-axis stabilized. Two deployed solar panels recharged NiCd batteries. The payloads included the AVCS (Advanced Vidicon Camera System). APT (Automatic Picture Transmission system), FPR (Flat Plate Radiometer), SPM (Solar Proton Monitor), VTPR (Vertical Temperature Profile Radiometer), and VHRR (Very High Resolution Radiometer). ITOS-1, ITOS-A, and ITOS-B carried AVCS, APT, FPR, SPM. ITOS-D, ITOS-E, ITOS-F, ITOS-G, and ITOS-H carried FPR, SPM, VTPR, VHRR.

Photo Gallery

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NOAA 1 / ITOS A Credit: Manufacturer Image

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NOAA 2 Credit: Manufacturer Image

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• ITOS 1 - . Payload: Tiros M. Mass: 309 kg (681 lb). Nation: USA. Agency: NOAA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: ITOS. USAF Sat Cat: 4320 . COSPAR: 1970-008A. Apogee: 1,479 km (919 mi). Perigee: 1,434 km (891 mi). Inclination: 101.80 deg. Period: 115.00 min.

  NASA successfully launched the Improved Tiros Operational Satellite (ITOS I) (TIROS-M) from Vandenberg AFB aboard a two-stage, Long Tank Thrust Augmented Thor/Delta (SLV-2K), Thorad/Delta, using six solid-propellaiit, strap-on Thiokol TX 354-5 Castor II motors. This was the first use of the "Super Six" Thor/Delta (DSV-3N-6) booster vehicle that employed the six Castor II motors, three of which ignited 30 seconds after lift-off. Generating nearly 600,000 pounds of thrust, the new launch vehicle could orbit a spacecraft weighing more than twice as much as the previous Tiros Operational Satellites. Improved TIROS Operational Satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• NOAA 1 - . Payload: ITOS A. Mass: 306 kg (674 lb). Nation: USA. Agency: NOAA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: ITOS. USAF Sat Cat: 4793 . COSPAR: 1970-106A. Apogee: 1,473 km (915 mi). Perigee: 1,423 km (884 mi). Inclination: 101.70 deg. Period: 114.80 min. Built for NASA; operated by NOAA. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

• ITOS B - . Payload: ITOS B. Mass: 308 kg (679 lb). Nation: USA. Agency: NASA Greenbelt. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: ITOS. Decay Date: 1972-07-21 . USAF Sat Cat: 5565 . COSPAR: 1971-091A. Apogee: 1,483 km (921 mi). Perigee: 293 km (182 mi). Inclination: 102.50 deg. Period: 102.70 min. Unusable orbit..

• NOAA 2 - . Payload: ITOS D. Mass: 344 kg (758 lb). Nation: USA. Agency: NOAA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: ITOS. USAF Sat Cat: 6235 . COSPAR: 1972-082A. Apogee: 1,455 km (904 mi). Perigee: 1,449 km (900 mi). Inclination: 101.80 deg. Period: 114.90 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

• ITOS E - . Payload: ITOS E. Mass: 345 kg (760 lb). Nation: USA. Agency: NASA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: ITOS. Decay Date: 1973-07-16 . Improved TIROS Operational System..

• NOAA 3 - . Payload: ITOS F. Mass: 345 kg (760 lb). Nation: USA. Agency: NOAA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: ITOS. USAF Sat Cat: 6920 . COSPAR: 1973-086A. Apogee: 1,510 km (930 mi). Perigee: 1,501 km (932 mi). Inclination: 102.10 deg. Period: 116.10 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

• NOAA 4 - . Payload: ITOS G. Mass: 340 kg (740 lb). Nation: USA. Agency: NOAA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: ITOS. USAF Sat Cat: 7529 . COSPAR: 1974-089A. Apogee: 1,459 km (906 mi). Perigee: 1,445 km (897 mi). Inclination: 101.80 deg. Period: 114.90 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

• NOAA 5 - . Payload: ITOS H. Mass: 340 kg (740 lb). Nation: USA. Agency: NOAA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: ITOS. USAF Sat Cat: 9057 . COSPAR: 1976-077A. Apogee: 1,523 km (946 mi). Perigee: 1,507 km (936 mi). Inclination: 102.30 deg. Period: 116.30 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..