To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Languages
Recent
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

From Wikipedia, the free encyclopedia

JCSAT-2
Mission typeCommunications
OperatorJSAT Corporation
COSPAR ID1990-001B [1]
SATCAT no.20402
Mission duration8 years (planned)
Spacecraft properties
SpacecraftJCSAT-2
Spacecraft typeJCSAT
BusHS-393
ManufacturerHughes
Launch mass2,280 kg (5,030 lb)
BOL mass1,364 kg (3,007 lb)
Dimensions3.7 m × 10 m × 2.3 m (12.1 ft × 32.8 ft × 7.5 ft) with solar panels and antennas deployed.
Power2.350 kW
Start of mission
Launch date1 January 1990, 00:07 UTC [2]
RocketCommercial Titan III (s/n CT-1) (maiden launch)
Launch siteCape Canaveral, SLC-40
ContractorMartin Marietta
End of mission
DisposalGraveyard orbit
Deactivated2002 [3]
Orbital parameters
Reference systemGeocentric orbit [4]
RegimeGeostationary orbit
Longitude154° East
Transponders
Band32 Ku-band × 27 Mhz[5]
Bandwidth864 MHz
Coverage areaJapan
TWTA power20 watts
← JCSAT-1
JCSAT-3 →
 

JCSAT-2 was a geostationary communications satellite designed and manufactured by Hughes (now Boeing) on the HS-393 satellite bus. It was originally ordered by Japan Communications Satellite Company (JCSAT), which later merged into the JSAT Corporation. It had a Ku-band payload and operated on the 154° East longitude until it was replaced by JCSAT-2A.[5]

YouTube Encyclopedic

  • 1/2
    Views:
    18 128
    8 769
  • JCSAT 4B @124. E ON 2 FEET DISH DTH
  • 20000 Subscribers - THANK YOU everyone!!!

Transcription

Satellite description

The spacecraft was designed and manufactured by Hughes Space and Communications Company on the HS-393 satellite bus. It had a launch mass of 2,280 kg (5,030 lb), a mass of 1,364 kg (3,007 lb) after reaching geostationary orbit and an 8-year design life. When stowed for launch, its dimensions were 3.4 m (11 ft) long and 3.7 m (12 ft) in diameter.[6] With its solar panels fully extended it spanned 10 m (33 ft).[5] Its power system generated approximately 2350 watts of power thanks to two cylindrical solar panels.[5] It also had a two 38 Ah NiH2 batteries.[5] It would serve as the main satellite on the 150° East longitude position of the JSAT fleet.[5]

Its propulsion system was composed of two R-4d-12 liquid apogee engine (LAE) with a thrust of 490 N (110 lbf). It also used two axial and four radial 22 N (4.9 lbf) bipropellant thrusters for station keeping and attitude control.[6] It included enough propellant for orbit circularization and 8 years of operation.[5] Its payload was composed of a 2.4 m (7 ft 10 in) antenna fed by thirty-two 27 MHz Ku-band transponders for a total bandwidth of 864 MHz.[5] The Ku-band transponders had a Traveling-wave tube#Traveling-wave-tube amplifier (TWTA) output power of 20 watts.[5]

History

With the opening of the Japanese satellite communications market to private investment, Japan Communications Satellite Company (JCSAT) was founded in 1985.[7][8] In June of the same year, JCSAT awarded an order to Hughes Space and Communications for two identical satellites, JCSAT-1 and JCSAT-2, based on the spin-stabilized HS-393 satellite bus.[5] JCSAT-2 was successfully launched aboard a Commercial Titan III (maiden launch) along Skynet 4A on 1 January 1990 at 00:07 UTC.[1][5] Originally expected to be retired in 2000, it was finally sent to a graveyard orbit on 2002.[3]

References

  1. ^ a b "Display: JCSAT 2 1990-001B". NASA. 10 February 2021. Retrieved 20 March 2021. This article incorporates text from this source, which is in the public domain.
  2. ^ "Trajectory: JCSAT 2 1990-001B". NASA. 10 February 2021. Retrieved 20 March 2021. This article incorporates text from this source, which is in the public domain.
  3. ^ a b Yanagisawa, Toshifumi (9 March 2016). "Lightcurve observations of LEO objects in JAXA" (PDF). JAXA. Retrieved 16 August 2016.
  4. ^ "JCSAT 2". N2YO.com. Retrieved 16 August 2016.
  5. ^ a b c d e f g h i j k Krebs, Gunter (21 April 2016). "JCSat 1, 2". Gunter's Space Page. Retrieved 20 July 2016.
  6. ^ a b "JCSAT 1, 2". Boeing. Archived from the original on 7 February 2010. Retrieved 16 August 2016.
  7. ^ "History". SKY Perfect JSAT. Retrieved 28 July 2016.
  8. ^ "JCSAT". Global Security. Retrieved 4 August 2016.
This page was last edited on 20 March 2021, at 05:05
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.