• CINEMA(KHUSAT-01)
  • CINEMA FM STEIN Payload
  • CINEMA Electronics
  • KHUSAT-03 Final Check and Integration
  • KHUSAT-03 Vibration Test
  • KHGS 2X727 Radio Antenna
  • 30 inches Telescope
  • Kyung Hee Astronomical Observatory(KHAO)

NEWS

Kyung Hee Reaches For the Moon in 2018

 

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Kyung Hee University is developing two of the four scientific instrument units onboard the “eXperimental Lunar Orbiter (XLO)” set to launch in 2018, the first spacecraft to orbit the moon in the history of Korean space exploration.

 

The instrument units under development are an wide area polarized camera and a lunar magnetometer. Professor Ho Jin at the Department of Astronomy and Space Science (Project Director) said, “The launch of the XLO will announce our arrival on the scene of space exploration as a major player.”

 

World’s first polarized orbital imagery of the front and back of the Moon 
The polarized camera being developed at Kyung Hee is planned to be used on the world’s first polarized orbital imagery of both the front and back of the moon. When the sunlight is reflected on the surface of the moon, the degree of polarization of light can reveal the size and types of material it was bounced off. Professor Sungsoo Kim at the School of Space Research said, “The rapid advancement in the optical and digital imaging technology since the 1990s has provided us with ever clearer high-resolution details of the lunar surface that resulted in many new findings. We fully expect that this unprecedented circumvolant polarized imaging of the moon will yield completely new discoveries.”

 

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New lunar magnetometer optimized for space environment 
The new lunar magnetometer will measure minute changes in the strength of the moon’s magnetic field and map them into a high precision 3D magnetic chart that can rival the best in the world. Previously the moon was believed to have no magnetic field, but recently a number of magnetic anomalies have been detected on the lunar surface. The new magnetometer is expected to produce important basic data regarding the genesis and evolution of the moon. Professor Jin said, “We have been designing various sensors for satellite such as magnetometers and particle detectors during the developmental course of the CINEMA (Cubesat for Ion, Neutral, Electron, MAgnetic field) series. Taking advantage of the accumulated experience, we are now developing a fully-optimized and mission-specific magnetometer for the XLO.”

 

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National project to establish infrastructure for lunar exploration 
Kyung Hee’s plan for lunar exploration first began in 2008 when the University was selected for the aerospace and defence part of the “World Class University (WCU)” program. This led to a number of international cooperative relations with many world leaders in the aerospace industry and academia laying down the framework for Kyung Hee’s space research capability. In 2012 and 2013 Kyung Hee successfully developed and launched CINEMA stage one, stage two (KHUSAT-1), and stage three (KHUSAT-2). While the CINEMA stage one was jointly developed with the University of California, Berkeley, the next two stages were developed by Kyung Hee with international technical assist. In February 2014, the University was chosen as the lead developer for the space weather analysis module of Chollian II, aka Communication, Ocean and Meteorological Satellite 2 (COMS-2), which is the first ever Korean-made geostationary space weather observation satellite. Professor Jin said, “Since the beginning of the WCU program in 2008, Kyung Hee’s relentless spirit of challenge has brought us to the cusp of reaching the moon. Successful completion of this project will greatly enhance our level of technical expertise and the reputation of the University in the field of space exploration, leading to more international cooperative research opportunities.”

 

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KHUSAT-03(SIGMA) ISL Activities

Final check and Integration

12~13 Apr 2016

Following preparatory activities, including a teams meeting, a cleanroom briefing and equipment cleaning, the KHUSAT-03 team entered ISL’s cleanroom on Monday 11 April 2016.

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We set up our working station with the needed equipment after which KHUSAT-03, which up to then had been safely stored in ISL’s part of ISIS’ clean-room, was retrieved from its transport-case and final check-out activities were successfully performed.

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Test Procedure: SPD 1001 – SIGMA(KHUSAT-03) Function Test.pdf

You can also check updates of launch information http://blog.isilaunch.com/

 

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FM KHUSAT-03(SIGMA) Vibration Test

FM KHUSAT-03 Vibration Test @SaTReC

11~12 Nov 2015

  • X, Y, Z axis(BRF)
  • Low level sine sweep
    • Amplitude: 0.4 g
    • Frequency range: 5 -2000 Hz
    • Sweep Rate: 2 oct/min
  • Random vibration
    • 20, 50, 800, 2000 Hz, 0.013, 0.08, 0.08, 0.013 g2/Hz
    • RMS acceleration: 10.0 g
    • Duration: 60 sec/axis

* by SpaceX Falcon-9 v1.1 requirments


Test Result Document
SPD 10006  - FM Vibration Testing.pdf


 

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Low level sine sweep vibration – FM KHUSAT-03 Y-axis

 

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FM KHUSAT-03(SIGMA) Thermal Vacuum Test

FM KHUSAT-03 Thermal Vacuum Test(T-VAC) @SaTReC

22~23 Oct 2015

  • Runtime: 30 hrs
  • # of Cycles: 2
  • Temperature: -25 ~ 40 °C
  • Soak Time: 2 hrs

We had been carried out T-VAC test of KHUSAT-03 for simulating the extreme thermal environment. Flight Model (FM) was used for the test. The number of cycle was two and target temperature was -25 to 40°C in 10-4 torr or less. We checked the status of FM KHUSAT-03 in console mode by receiving housekeeping(HSK) data. In this test, we are able to confirm the reliability of an operation for KHUSAT-03 in space environment.


Test Result Document
SPD 10005 – FM KHUSAT-03 Thermal Vacuum Testing


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The end, CINEMA mission

시네마

CINEMA communication shutdown at 28th. Nov. 2014 .

CINEMA REVIEW

1) Mission overview

TRIO (TRiplet Ionospheric Observatory) – CINEMA (CubeSat for Ion, Neutral, Electron, MAgnetic fields):

CINEMA is an international nanosatellite science mission of cooperative university institutions with the objective to provide critical space weather measurements, including unique high sensitivity mapping of ENAs (Energetic Neutral Atoms), and high cadence movies of ring current ENAs in stereo from low Earth orbit. By the selection of its sensor complement, the mission will pave the way for “magnetospheric constellations” with many satellites making multipoint observations. The project emphasizes student involvement with guidance by experienced engineers and scientists. The implementation of the project is realized using a combination of flight heritage and innovation that balances risk and safety. CINEMA is a triple CubeSat (3U) science mission of the following collaborating institutions (CINEMA consortium): SSR/KHU(School of Space Research/Kyung Hee University, Korea), SSL/UCB(Space Sciences Lab./University of California, Berekeley, CA) and ICL(Imperial College London). Within the CINEMA program, KHU and UCB will develop and fly three identical CINEMA nanosatellites, the constellation is referred to as TRIO-CINEMA (Triplet Ionospheric Observatory-CINEMA) to provide stereo ENA imaging of the ring current.

 

2) CubeSat

CINEMA 2 (KHUSAT-01) and CINEMA 3 (KHUSAT-02).

  • Size: 100 mm x 100 mm x 340.5 mm (3U),
  • Mass: 3.15 kg
  • Payloads:
    • STEIN (SupraThermal Electron, Ion and Neutral)
    • MAGIC (MAGnetometer from Imperial College)
  • Launch: 2013.11.21, Yasni, Orenburg Oblast, Russia (L/V: Dnepr)
  • Orbit: Sun-Synchronous Orbit, Inclination: 97°

3) Ground Station

KHUGS (Command / Receive)

KASI (Receive only)

4) Operation Issue

In case of KHUSAT-02, it might be operating(KHUSAT-01 is comfirmed) but can not receive data at KHUGS. We guessed there are attitude and spin axis problems of the CubeSat. KHUSAT-01 and KHUSAT-02, both CubeSats had not response to telecommand. There are some treatment below what we did.

  • Attempt shift Telecommand within ±50 KHz of center frequency /Jan 2014
  • Verification of GS(UHF uplink) by OSCAR /Feb 2014
  • Change the Helical antenna (LHCP, 9.8 dBi) to Yagi antenna (Linear, 23.9 dBi) /May 2014
  • Change the high-powered amp. /Jun 2014

5) Operation result (2014.11.21)

  • Telecommand attempt: 289 pass / 143 days (KHUSAT-01: 247 pass, KHUSAT-02: 42 pass)
  • Beacon signal: 114 pass / 81 days (The KHUSAT-01 was contact with KHUGS and KASI and the KHUSAT-02 was contact with the King Sejong station(5 pass) and KASI(1 pass)
  • Realtime received data:  93.99 MB, total 71.2 GB
  • Effective data: De-coded data – 134.09 MB (109,931 Frame) Effective data – 45.22 MB (43,185 Beacon Frame, Effective data=De-coded data-Dummy frame) 

CINEMASTATUS

 

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KHUSAT-03(SIGMA) ACS tests

2014.05.12 – 16

SIGMA team performed basic communication test with ACS board and On-Board Computer. The  students of York University(CA) visit KHU for the test. We check the status of On-Board Computer-ACS and some agenda of the subsystem.

Thanks to Patrick, Thomas, Andrew and Prof. Regina Lee.

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