SACI-1

SACI-1
Spacecraft properties

Mission type	Earth orbiter
Operator	INPE
COSPAR ID	1999-057B
SATCAT no.	25941


Manufacturer	INPE
Launch mass	60 kilograms (130 lb)
Power	150 watts


Start of mission
Launch date	October 14, 1999 (1999-10-14)
Rocket	Long March 4B
Launch site	Taiyuan LC-7


Orbital parameters
Reference system	Geocentric
Regime	Sun-synchronous
Semi-major axis	7,098 kilometres (4,410 mi)
Eccentricity	0.00084
Perigee altitude	733 kilometres (455 mi)
Apogee altitude	745 kilometres (463 mi)
Inclination	98.6°
Period	99.6 minutes
Epoch	Planned

The SACI-1 was a microsatellite of scientific applications, designed, developed, constructed and tested by Brazilian technicians, engineers and scientists working in INPE (National Institute of Space Research).^[1] SACI-1 was launched on October 14, 1999, from the Taiyuan Satellite Launch Center, China, by means of a Long March 4B rocket, as a secondary payload at the CBERS-1 launch.

Features

The "SACI" satellites are composed of a multi-mission platform and a set of experiments that constitute the payload. These satellites had the cooperation of several Brazilian and foreign institutions.

The SACI-1 scientific satellite has the following characteristics:

Format: parallelepiped with 60 cm x 40 cm x 40 cm
Mass: 60 kg
Orbit: heliosynchronous
Stabilization: by rotation (6 rpm)
Precision: 1 degree

Energy supply

Solar Cells: Gallium Arsenide (AsGa)
Dimensions: 3 panels of 57 x 44 cm
Efficiency: 19%
Power output: 150W
Nickel Cadmium (NiCd) Battery Cells
Voltage: 1.4 V
Capacity: 4.5 Ah
Remote control rate: 19.2 kbit/s
Transmission rate: 500 kbit/s
Antennas of edge: 2 of transmission and 2 of reception, type Microstrip
Operating frequency telemetry / remote control: 2,250 GHz / 2,028 GHz
Receiving antenna in Soil: 3.4 m in diameter

Mission

Although the launch went smoothly, and the intended orbit reached, SACI-1 did not come into operation, probably due to a failure in the solar panel control system.

References

^ Sousa, Fabiano. Desenvolvimento de satélites e plataformas espaciais no INPE no período 1961–2007 Archived 2014-02-02 at the Wayback Machine (PDF). INPE. Retrieved 31 March 2017.

External links

SACI-1 Gunter's Space Page

Brazilian space program

Science and technology in Brazil

Satellites

Programs	SCD CBERS SGDC Amazônia
In development	ASTER Flora Hiperspectral SABIA-Mar SARA LATTES GEOMET

Sounding
rockets

Active	Sonda VS-30 VSB-30 VS-40 Fogtrein
Canceled	VS-15

Launch
vehicles

In development	VLM VS-50
Canceled	VLS-1 ("Cruzeiro do Sul" launcher family) Tsyklon-4 (collaboration with Ukraine)

Launch sites

Organisation

Missions

International programs

Artemis Space Program (collaboration with the United States and 10 other countries)

v t e ← 1998 Orbital launches in 1999 2000 →
January	Mars Polar Lander ROCSAT-1
February	Stardust Globalstar 23, Globalstar 36, Globalstar 38, Globalstar 40 Telstar 6 JCSAT-6 Soyuz TM-29 ARGOS, Ørsted, SUNSAT Arabsat 3A, Skynet 4E Globus No.15
March	Wide Field Infrared Explorer Globalstar 23, Globalstar 37, Globalstar 41, Globalstar 46 AsiaSat 3S DemoSat
April	Progress M-41, Sputnik 99 INSAT-2E USA-142 Eutelsat W3 Globalstar 19, Globalstar 42, Globalstar 44, Globalstar 45 Landsat 7 UoSAT-12 Ikonos-1 ABRIXAS, Megsat-0 USA-143
May	Orion 3 Feng Yun 1C, Shijian 5 TERRIERS, MUBLCOM Nimiq 1 USA-144 Oceansat-1, Kitsat-3, DLR-Tubsat STS-96 (Starshine 1)
June	Globalstar 25, Globalstar 47, Globalstar 49, Globalstar 52 Iridium 14A, Iridium 21A Astra 1H QuikSCAT FUSE
July	Gran' No.45 Molniya 3-50 Globalstar 30, Globalstar 32, Globalstar 35, Globalstar 51 Progress M-42 Okean-O No.1 STS-93 (Chandra) Globalstar 26, Globalstar 28, Globalstar 43, Globalstar 48
August	Telkom 1, Globalstar 24, Globalstar 27, Globalstar 53, Globalstar 54 Kosmos 2365 Kosmos 2366
September	Koreasat 3 Yamal-101, Yamal-102 Foton 12 Globalstar 33, Globalstar 50, Globalstar 55, Globalstar 58 EchoStar V Ikonos 2 Telstar 7 LMI-1 Resurs F-1M
October	USA-145 DirecTV-1R CBERS-1, SACI-1 Globalstar 31, Globalstar 56, Globalstar 57, Globalstar 59 Orion 2 Ekspress A1
November	GE-4 MTSAT-1 Shenzhou 1 Globalstar 29, Globalstar 34, Globalstar 39, Globalstar 61 USA-146
December	Hélios 1B, Clémentine Orbcomm FM30, Orbcomm FM31, Orbcomm FM32, Orbcomm FM33, Orbcomm FM34, Orbcomm FM35, Orbcomm FM36 XMM-Newton † VLS-1 V02 (SACI-2) USA-147 Terra STS-103 Arirang-1, ACRIMSAT, Millennial Galaxy 11 Kosmos 2367 Kosmos 2368
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Cubesats are smaller. Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).