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Ed Kyle

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January-March, 2017

f9-33a.jpg (9884 bytes)Falcon 9 Reflies First Stage, Orbits SES 10 (March 31, 2017 Update)

SpaceX launched a previously-flown Falcon 9 first stage for the first time on March 30, 2017. The stage, B1021, boosted the F9-33 mission that lofted the SES 10 communications satellite to geosynchronous transfer orbit from Kennedy Space Center Launch Complex 39 Pad A. B1021 had previously flown during the F9-23 CRS-8 mission on April 8, 2016, when it landed downrange on a converted barge. After a 22:27 UTC liftoff, B1021 repeated the feat, landing again on the downrange floating platform after performing reentry and landing burns.

After the first stage completed its 2 min 38 sec ascent burn, the Falcon 9 second stage fired its Merlin 1D Vacuum engine for 345 sec to reach a parking orbit. After a 17 min 55 sec coast to the equator above the west African coast, the stage restarted for 53 seconds to accelerate the 5,282 kg SES 10 satellite toward a planned 218 x 35,410 km x 26.2 deg transfer orbit.  SES 10 separated from the stage 32 min 03 sec after liftoff.   The second stage ended up in a 217 x 33,395 km x 26.3 deg orbit, suggesting that a slightly lower than planned apogee was achieved, but SpaceX announced that it had met customer requirements.

After raising itself to geostationary orbit, Airbus Defense and space-built SES 10 will serve Latin America, using 55 Ku-band transponder equivalents, from 67 deg West.

After the flight, SpaceX CEO Elon Musk announced that the company had, in another first, directed one of the two payload fairing halves to a landing zone in a test of future payload fairing recovery.  The fairing had been equipped with a cold gas thruster system.  Eventually, steerable parachutes and inflatable shock absorbers will be used to bring the fairings down to recoverable ocean landings.

It was the first reflight of a complete orbital-class liquid fueled rocket stage.  Blue Origin's New Shepard rocket had previously reflown, but on much less taxing suborbital missions.  Reusable Space Shuttle orbiters brought back three main engines (SSMEs) and avionics, but expended the large external propellant tank that fed the three SSMEs.  Space Shuttle solid rocket boosters were also recovered and reused, but they were disassembled after each flight and the motor segments never stayed together to fly again as a unit.

After its 2016 flight, the B1021 stage was partially disassembled (its engines were removed, for example) and was shipped back to the SpaceX factory in Hawthorne, California.  After the engines were re-installed and other refurbishment work completed, the stage was shipped to the company's McGregor, Texas test site.  There, it was test-fired on January 25, 2017, completing what appeared to be a standard test cycle for a Falcon 9 first stage.  The new second stage was also test fired in late January or early February.  After shipment to LC 39A's Horizontal Integration Facility, the assembled F9-33 rocket performed a five-second static test at LC 39A on March 27, 2017, with no payload installed. 

d377.jpg (17870 bytes)Delta 4 Launches WGS-9

Delta 377, a Delta 4M+5,4 with four solid rocket motors and a five meter diameter Delta cryogenic second stage (DCSS), lofted Wideband Global SATCOM No. 9 into supersynchronous transfer orbit from Cape Canaveral Florida on March 19, 2017. The 399 tonne, 66.3 meter tall liquid hydrogen fueled rocket rose from Space Launch Complex 37B at 00:18 UTC on 829.7 tonnes (1.829 million pounds) of thrust created by its RS-68A first stage engine and its four GEM-60 solid motors.

DCSS performed two burns of its 11.23 tonne thrust RL10B-2 LOX/LH2 engine during the ascent. The first placed the vehicle into a 185 x 6,100 km x 27.6 deg parking orbit about 20 minutes after liftoff. After a 9.5 minute coast to the equator the second, roughly 3.5 minute burn pushed the 5.987 tonne Boeing 702 series satellite into a 431 x 44,290 km x 27 deg transfer orbit. Spacecraft separation occurred about 41 minutes 45 seconds after liftoff.

WGS-9 was jointly purchased by Canada, Denmark, the Netherlands, Luxembourg and New Zealand. It will provide up to 11 Gbps data transfer rates for the military of these nations and for the U.S. military using X-band and Ka-band transponders and on-board data processors.

DCSS was expected to perform a deorbit burn at about T+1 hour 11 min 44 sec, leading to destructive reentry at about T+12 hours 12 min. 

It was the first Delta 4 launch of 2017.  It was also the 35th Delta 4 flight. Only one more WGS launch is currently listed on the Delta 4 backlog, along with only three more Medium variant launches, as United Launch Alliance works toward retirement of the type.

h2af33.jpg (4611 bytes)H-2A Launches Radarsat

An H-2A boosted Japan's Information Gathering Satellite (IGS) Radar 5 to a sun synchronous orbit on March 17, 2017. Liftoff from Yoshinobu Launch Complex 1 at Tanegashima Space Center took place at 01:20 UTC. The 202 series rocket, tail number F33, was boosted by a pair of SRB-A solid motors.

It was the second H-2A launch of 2017.

IGS Radar 5 is a radar reconnaissance satellite built by Mitsubishi Electric that will be operated by the Cabinet Satellite Information Center. It will support Japan's national defense and aid in civil natural disaster monitoring.

f9-31.jpg (18784 bytes)Falcon 9 Orbits Echostar 23

A SpaceX Falcon 9 boosted Echostar 23 to geosynchronous transfer orbit from Kennedy Space Center's Launch Complex 39 Pad A on March 16, 2017. Liftoff took place at 06:00 UTC. The Merlin 1D Vacuum-powered second stage performed two burns to accelerate the roughly 5.6 tonne communications satellite into a 179 x 35,903 km x 22.43 deg geosynchronous transfer orbitd.

According to the SpaceX press kit, the first stage burned for 2 min 43 sec. The second stage then fired for 5 min 36 sec before beginning a nearly 18 minute parking orbit coast to the equator. The stage completed its second, 1 minute burn at the 27 min 19 sec mark. Spacecraft separation occurred 34 minutes after liftoff.

F9-31 was the first Falcon 9 v1.2 flown in fully expendable mode, with no landing legs, grid fins, or other recoverable hardware on the first stage. Expendable mode was needed to accomodate the heaviest-ever Falcon 9 GTO payload.

Space Systems/Loral built Echostar 23, using its SSL-1300 bus. The satellite has 32 Ku-Band transponders, as well as Ka- and S-Band transmitters. It will raise itself to a geostationary orbit at 45 degrees West.

The rocket used first stage number B1030. It and its second stage partner were test fired at McGregor, Texas during mid to late November, 2016. They were stored in the LC 39A hangar when the CRS-10 Dragon launch moved ahead of Echostar 23 in launch order. The assembled rocket performed a roughly 3 second static test at LC 39A on March 9 with no payload attached, after a scrubbed attempt two days earlier. A March 14 launch attempt was scrubbed by high winds about 38 minutes before T-0.

vv09.jpg (24381 bytes)Vega Orbits Sentinel 2B

Europe's Vega launch vehicle orbited the Sentinel 2B earth observation satellite for Arianespace and ESA from Kourou on March 7, 2017. The four-stage rocket lifted off from the Vega Launch Complex (ZLV) at 01:49 UTC, beginning a nearly 58 minute mission that deployed the 1,130 kg Airbus-built satellite into a 786 km x 98.57 deg sun synchronous orbit.

Sentinel 2B is the fourth Copernicus program satellite. It will be positioned in an orbit opposite to Sentinel 2A, which was launch by a Vega in June 2016.

Vega's P80 solid motor first stage burned for 1 min 55 seconds. Its Z23 solid motor second stage ignited one second later and burned until the 3 min 39 sec mark. After a 12 second coast the Z9 solid motor third stage ignited for its 2 min 41 second burn. The payload fairing separated shortly after the third stage ignited.

After a 1 min 51 sec coast, the liquid AVUM fourth stage began a 7 min 4 second burn to enter an elliptical parking orbit. The stage and payload then coasted over the Arctic before performing a second, two-minute burn beginning 55 min 7 sec after liftoff. This burn circularized the orbit. Sentinel 2B separated about 50 seconds after the burn ended. AVUM was scheduled to perform an orbit reduction burn about an hour later.

KT2-1.jpg (2484 bytes)China Launches Another New Rocket

China debuted the KT-2 (Kaitou 2) orbital launch vehicle on March 2, 2017. The solid-fuel, likely three-stage launch vehicle lifted off from the CZ-11 flat pad at Jiuquan space center at 23:53 UTC. KT-2 injected a small test satellite named TK-1 (Tiankong) into a 381 x 403 km x 96.9 deg sun synchronous orbit.

Xinhua reported that the TK-1 satellite was developed by CASIC to be used for "remote sensing, telecommunications and experiments in minisatellite-based technologies".

China Aerospace Science & Industry Corporation (CASIC) also reportedly developed the launch vehicle. KT-2 may be based on the DF-31 mobile ICBM family, but that has yet to be determined. According to Xinhua, KT-2 is one of five launch vehicles planned for development by CASIC. It is capable of lifting 350 kg to a low inclination low earth orbit or 250 kg to a 700 km sun synchronous orbit.

CZ-11, a similar DF-31 based rocket that first flew in 2015, was developed by the China Academy of Launch Vehicle Technology (CALT). Two smaller, DF-21 based launchers, both by CASIC, have also flown: Kuaizhou 1(A) beginning in 2013 and KT-1, which failed in two attempts during 2002-2003.

av068.jpg (12125 bytes)Atlas 5 Launches Classified Payload

Atlas 5 AV-068, a 401 variant with no solid fuel boosters and a four-meter fairing, launched the NROL-79 mission for the National Reconnaissance Office from Vandenberg AFB Space Launch Complex 3 East on March 1, 2017. Liftoff took place at 17:49 UTC.

United Launch Alliance ended its webcast after the Centaur second stage separated from the Atlas first stage and ignited its RL10-C1 engine. The unannounced payload appeared aimed toward an initial orbit inclined 63 degrees to the equator. No orbital parameters, payload information, or mission timeline were announced. Mission success itself was not announced for several hours, indicating that the rocket's Centaur upper stage likely performed multiple burns.

Amateur observers suspected that the mission placed a pair of Intruder (third generation NOSS) type satellites into roughly 1,000 x 1,200 km x 63.4 deg orbits for the purpose of pinpointing mobile radio signal emitter locations on the world's oceans.

The launch had been delayed for more than a month after a problem was found with the Atlas 5 Centaur stage when propellants were loaded during a wet dress rehearsal (WDR).   After the unspecified problem was fixed, the launch vehicle was subjected to a second WDR to certify its readiness for flight.

It was the 70th Atlas 5 launch and the 60th consecutive success.

progms05.jpg (8054 bytes)Soyuz-U Finale (February 23, 2017 Update)

Russia's long-lived Soyuz-U launch vehicle performed its final flight on February 22, 2017 when it boosted the Progress MS-05 robotic cargo hauling spacecraft into orbit from Baikonur Cosmodrome, Kazakhstan. Liftoff took place at 05:58 UTC from snow-covered Area 1 Pad 5.

It marked a return to flight after the previous Soyuz-U's RD-0110 upper stage engine suffered a turbopump failure on December 1, 2016 while attempting to orbit Progress MS-04. Investigators found manufacturing defects and unqualified alloys in other engines from the same production batch.

Progress MS-05 carried 2,395 kg of cargo, including dry cargo, propellant, water, and oxygen. The loaded spacecraft weighed nearly 7,300 kg at liftoff.

Soyuz-U, an improved, standardized version of earlier R-7 based launch vehicles, first flew in 1973. It orbited recoverable Soviet Zenit and Yantar spy satellites from Baikonur and Plesetsk and manned Soyuz spacecraft from Baikonur, including the Soyuz 19 Apollo Soyuz Test Project spacecraft in 1975. In 1978, it launched the first of many unmanned Progress cargo spacecraft, this one to the Salyut 6 manned space station. It was Russia's primary crew launch vehicle until the Soyuz TM-34 launch in 2002. Since then, Progress has been its most common payload.

A total of 786 Soyuz-U launch vehicles have flown, including 10 that carried Ikar or Fregat upper stages on Globalstar and European Space Agency Cluster missions beginning in 1999. The number does not include the Soyuz-U/Soyuz T-10-1 pre-liftoff fire that resulted in the escape tower firing to save the crew, but destroying the launch vehicle, on September 26, 1983. A total of 765 of the launches were successful, making Soyuz-U one of the world's most reliable orbital launch vehicles. Soyuz-U flew 47 times in 1979, including two failures, and 40 or more times each year from 1978 to 1984. It ranks as the most oft-flown, and longest-lived launch vehicle variant of the Space Age.

The type was originally replaced for manned launches by Soyuz FG, but now both the "U" and "FG" types are being supplanted by Soyuz 2 launch vehicles, which use modern digital avionics.

f9-32a.jpg (22350 bytes)Falcon 9 Debuts from KSC (February 23, 2017 Update)

SpaceX’s Falcon 9 orbited the CRS-10 Dragon spacecraft with cargo for the International Space Station from Kennedy Space Center Launch Complex 39 Pad A on February 19, 2017.  It was the first Falcon 9 launch from the converted NASA Saturn 5/Space Shuttle launch site.  Liftoff took place at 14:39 UTC, following an aborted attempt one day earlier caused by out of range readings from the second stage thrust vector control system. 

Falcon 9's second stage boosted Dragon into a 51.6 deg low earth orbit, with stage cutoff occurring about 9 min 5 sec after liftoff and spacecraft separation taking place about one minute later.  While the second stage was performing its 393 second long burn, the first stage did a 180 deg flip and performed 3-engine boostback burn.  It flipped again before performing a 3-engine entry burn and a single engine landing burn that began about 7 min 33 sec after liftoff.  The stage landed at Cape Canaveral Landing Zone 1, performing the first daylight landing, and third overall, at the site.  The second stage was expected to perform a deorbit burn after spacecraft separation. 

f9-32c.jpg (4631 bytes)The CRS-10 Dragon (Dragon spacecraft No. 12) carried about 2,490 kg tonnes of cargo, including 1,530 kg inside the pressurized capsule and 960 kg attached to the unpressurized trunk section.  SpaceX does not announce total spacecraft mass, but based on early publications by the company and on more recent expert estimates, CRS-10 Dragon likely weighed more than 8,400 kg at liftoff, including cargo.

Spacecraft berthing at ISS was scheduled to occur on February 22, but a 24 hour delay resulted from a problem with Dragon's GPS-based guidance system.  The berthing took place successfully on February 23. 

The flight was performed by the F9-32 vehicle, a v1.2 (or "Block 3") variant, which used first stage number B1031.   The vehicle's stages were test fired at McGregor, Texas, apparently during December, 2016.   The first stage performed a brief static firing at LC 39A on February 12, 2017 after a scrubbed attempt the day before.  The first and second stages without payload were stacked for the test.

With the flight, Falcon 9 became the first launch vehicle family to perform a second orbital flight in 2017.   

For Falcon 9 and Falcon Heavy, SpaceX added a large horizontal processing hangar just south of the SLC 39A fence line and replaced the crawlerway ramp with dual rail tracks for a transporter erector launcher (TEL) to roll upon while carrying rockets up to the pad.   The flame trench was rebuilt and reconfigured, with exhaust now exiting only toward the north, and large "rainbirds" were added to spray water on the launcher during liftoff.  Additional changes to the pad are planned to support Commercial Crew launches, including installation of a crew access arm on the fixed service tower.  

Falcon Heavy is not expected to debut from LC 39A until after Cape Canaveral SLC 40 is restored to service sometime after mid-2017.   Meanwhile, SpaceX hopes to perform a first unmanned flight of its Dragon 2 Commercial Crew spacecraft from LC 39A by year's end.  An improved "Block 5" Falcon 9 being developed to launch Dragon 2 will perform the launch.

It was the 95th launch from LC 39A, a number that includes 12 Saturn 5 and 82 Space Shuttle liftoffs, the most recent by Shuttle Atlantis on July 8, 2011 for STS-135 mission.

pslvc37.jpg (7997 bytes)PSLV Orbits Cartosat 2D/Nanosats

PSLV-C37, an XL version of Indian Space Research Organizaion's Polar Satellite Launch Vehicle, boosted 714 kg Cartosat 2D and 103 nanosatellites that together weighed 664 kg into a 505 km x 97.46 deg sun synchronous orbit from Sriharikota, India on February 15, 2017.  The mission set a record for numbers of satelites on a single launch. 

Liftoff from the First Launch Pad at Satish Dhawan Space Center took place at 03:58 UTC. The 4.5-stage, 321 tonne, 44.4 meter tall rocket fired its four stages (solid, liquid, solid, and liquid fueled, respectively) in succession during the first 1,008 seconds of the ascent, with a 10 second coast before fourth stage ignition. Six strap-on solid motors (four ground lit and two air lit) augmented thrust during the first stage burn. The liquid MMH/MON-3 fourth stage fired for about 505 seconds during its insertion burn.

Satellite deployment took about 11 minutes, beginning with the cartographic mapping Cartosat 2D at T+17.5 minutes with the last separation at about the 28 minute 43 second mark..

va235.jpg (17671 bytes)Ariane 5 Launches Two Comsats

A 2.5 stage Ariane 5 ECA orbited two communication satellites from Kourou on February 14, 2017.   Liftoff from ELA 3 took place at 21:39 UTC. The Arianespace VA235 mission placed 6,000 kg Sky Brasil 1 and 3,550 kg Telkom 3S into geosynchronous transfer orbits. The second stage completed its single burn at T+25 minutes to reach the insertion orbit.   Airbus-built Sky Brasil 1 (an E3000 bus) deployed first from atop the Sylda 5 dual payload carrier at T+27 minutes. Thales Alenia-built Telkom 3S (a Spacebus 4000B2) separated 12 minutes later.

Both satellites will raise themselves into geostationary orbits where they will proide HDTV and other services.  Sky Brasil will be positioned at 43.1 deg West.  Telkom 3S will work from 118 deg East. 

VA235 was the 60th Ariane 5 ECA launch, and 59th success.  

vs16.jpg (10584 bytes)Soyuz Orbits Hispasat 36W-1

A Soyuz 2-1b/Fregat (also designated Soyuz ST-B) rocket launched the Hispasat 36W-1 communications satellite into geosynchronous transfer orbit from Kourou, French Guiana on January 28, 2017. Liftoff from the ELS pad took place at 01:03 UTC. The VS16 mission for Arianespace was the first GTO launch by Soyuz from Kourou.

Germany's OHB System AG built the 3,220 kg "SmallGEO" platform satellite. Hispasat 36W-1 will be stationed at 36 deg West to provide communication services to Spain, Portugal, the Canary Islands and South America.

After a 9 minute 23 second ascent by the 2.5 stage R-7 launch vehicle, the mission finished with a single burn by the Fregat MT upper stage, which began 10 min 23 seconds, and ended 28 minutes, after liftoff. The burn boosted the satellite toward a targeted 250 x 35,736 km x 5.44 deg orbit. 

Spacecraft separation took place 32 minutes 10 seconds after liftoff.

h2af32.jpg (13381 bytes)Japan Launches Milcomsat

H-2A F-32, an H-2A-204 with four SRB-A solid rocket motors, orbited Japan's first dedicated military communications satellite from Tanegashima Space Center on January 24, 2017. Liftoff from Pad 1 took place at 07:44 UTC. The LE-5B powered second stage performed two burns to place the DSN 2 satellite into geosynchronous transfer orbit within about one-half hour of liftoff.

DSN Corporation, a subsidiary of SKY Perfect JSAT Corporation, built and will operate DSN 2 as part of an X-band satellite communications system for the Japanese Ministry of Defense.  The mass of the payload was not released, but  H-2A-204 can lift up to 5.7 tonnes to geosynchronous transfer orbit.

It was the 31st H-2A success in 32 launches since the program began in 2001.

av066.jpg (13137 bytes)Atlas 5 Orbits SBIRS GEO 3

AV-066, a basic Atlas 5-401 variant, launched the third Space Base Infrared System Geosynchronous Earth Orbit satellite (SBIRS GEO 3) into orbit from Cape Canaveral, Florida on January 21, 2017. Liftoff from Space Launch Complex 41 took place at 00:42 UTC..

Centaur fired twice to insert the 4.54 tonne, Lockheed-Martin-built early warning satellite into geosynchronous transfer orbit.

The launch campaign included a record short, 13-day period from first stage stacking to rollout. An initial launch attempt 24 hours earlier was scrubbed by a sensor issue and by an aircraft intruding on a downrange safety zone.

ss520-4.jpg (6258 bytes)Sounding Rocket Orbit Try Fails

Japan's SS-520-4, a small experimental three-stage orbital launcher based on an existing two-stage sounding rocket, failed during its inaugural attempt from Uchinoura Space Center at Kagoshima on January 14, 2017. The solid-fueled rocket zipped skyward from its rail launcher at the KS sounding rocket pad at 23:33 UTC, aiming to place Tricom 1, a 3kg Cubesat, into a 180 x 1,500 km x 31 deg orbit after a rapid ascent lasting just over four minutes.

The first stage burn appeared to be good, ending after about 31 seconds, but the second stage never ignited as planned after a 140 second coast. Reports indicated that telemetry was lost even before first stage cutoff. Second stage ignition needed to be enabled from the ground, which was impossible without an established downlink. The vehicle apparently fell into the expected first stage drop zone, indicating that the first stage propulsion phase had more or less succeeded.

SS-520-4 (SS-520 serial number 4) weighed about 2.6 tonnes at launch, which would have made it the lightest-ever orbital rocket had it succeeded. The rocket was 9.54 meters long and 0.52 meters diameter.  It's first stage HTPB solid fuel motor produced about 18 tonnes of liftoff thrust.

The launch was to be a one-off experiment, so no additional SS-520-4 orbital attempts are expected.

f9-30.jpg (10368 bytes)Falcon 9 Returns to Flight

Ending a four-month failure investigation stand-down, SpaceX Corporation's Falcon 9 launch vehicle returned to service on January 14, 2017, orbiting ten IridiumNEXT satellites from Vandenberg AFB in California. The v1.2 variant, informally designated F9-30 by outside observers (it used first stage number B1029), lifted off from Space Launch Complex 4 East at 17:54 UTC to begin a hour-long mission that inserted the 860 kg, Thales Alenia Space-built satellites into roughly 610 x 620 km x 86.4 deg orbits. The satellites will raise themselves into 780 km operational orbits.

After a 43 minute, 16 second coast, the Falcon 9 second stage restarted for a brief second, circularization burn at first apogee about 52 minutes 31 seconds after liftoff to complete the powered phase of the flight. Spacecraft separation began at about the 59 minutes 16 seconds mark, with each satellite separating individually separated by about 1.5 minutes.

The first stage performed boost-back, reentry, and landing burns before landing on the converted barge "drone ship" “Just Read the Instructions”. It was the first successful first stage landing in two West Coast attempts. Six previous first stage recoveries had been made after Cape canaveral liftoffs.

The launch was the first of seven planned IridiumNext Falcon 9 flights that will replace the company's orbiting "Little LEO" communication satellite constellation.

Falcon 9 had been grounded since F9-29 and its $200 million AMOS 6 satellite payload were destroyed during a pre-launch propellant loading and hot fire test exercise at Cape Canveral on September 1, 2016. SpaceX determined that the cause was sudden overpressurization of the second stage liquid oxygen (LOX) tank due to the failure of a composite overwrapped pressure vessel (COPV) containing pressurized helium that was mounted inside the LOX tank. Improper control of subcooled-LOX temperatures may have been involved. Elon Musk of SpaceX suggested that LOX froze within or beneath the composite overwrapping, causing loss of COPV structural integrity.

SpaceX performed cryogenic loading tests, with some leading to failure, of small test vessels at its McGregor, Texas test site to confirm the failure mode. The company also changed its propellant loading procedures, more than doubling the LOX loading time.

The F9-30 first and second stages were test fired at the company's McGregor, Texas test site during late October and early November, 2016. The first stage was hot fired at SLC 4E on January 5, 2017 after a scrub the previous day. The IridiumNEXT payload was not atop the vehicle during the wet dress rehearsal and hot fire exercise.

F9-30 was the 29th Falcon 9 launch and the ninth v1.2 variant to fly, not including the lost AMOS 6 launch vehicle. It was the first v1.2 to fly from VAFB.

kz1a-1.jpg (6082 bytes)Kuaizhou 1A Launch

China's Kuaizhou 1A (KZ-1A), an improved variant of previously-flown Kuaizhou 1, flew for the first time on January 9, 2016 from Jiuquan Satellite Launch Center. The three-stage solid fuel rocket lifted off from a mobile launcher on a flat pad at 04:11 UTC. Three satellites, including remote-sensing JL-1 and CubeSats XY-S1 and Caton-1, separated into sun synchronous orbits.

Expace Technology Co., Ltd., a subsidiary of China Aerospace Science & Industry Corp, handled the launch as a commercial enterprise.

KZ-1A can loft 200kg into a 700 km sun synchronous orbit, or up to 300 kg to lower inclincation low earth orbits. It is 20 meters tall, 1.4 meters in diameter, and weighs 30 tonnes at liftoff. The three solid motor stages weigh 16.621 tonnes, 8.686 tonnes, and 3.183 tonnes and have 65 second, 62 second, and 55 second burn times, respectively. The first two stages are 1.4 meters diameter. The third stage is 1.2 meters diameter. 1.2 and 1.4 meter diameter fairing are available. This launch appeared to use the 1.4 meter fairing.

A small N2O4/MMH bipropellant insertion fourth stage provided final orbit trim during a roughly 13 minute long period that included nearly six minutes of low-thrust burn.  Spacecraft separation began about 17.7 minutes after liftoff.

cz3b38.jpg (9275 bytes)China Kicks Off 2017

China performed the first orbital launch of 2017 with a CZ-3B/E launch from XiChang on January 5. The 3.5 stage rocket carried TJSW 2 (Tongxin Jishu Shiyan Weixing, or Communications Engineering Test Satellite) aloft from LC 2 at 15:18 UTC. TJSW 2 entered a geosynchronous transfer orbit about one-half hour later after two burns by the liquid hydrogen-fueled third stage.

Like the first TJSW launched September 12, 2015, TJSW 2's appears to have a classified purpose.  The first TJSW was used, in part, to test Ka-band technology for broadband communications.

It was the 38th CZ-3B launch.