What kind of asteroid is Ryugu？
Hayabusa2 is rapidly approaching Ryugu, so what kind of asteroid is this space rock? Let's take a tour of what we know so far.（Makoto Yoshikawa：2018.04.04）
Hayabusa2 has detected Ryugu!
Hayabusa2 has detected Ryugu! On February 26, 2018, asteroid Ryugu was imaged by the ONC-T (Optical Navigation Camera - Telescopic).
What will asteroid Ryugu look like? We are looking for host organisations for a space art contest!
Between June and July 2018, the spacecraft will reach asteroid Ryugu. We invite science museums, planetariums, public observatories and other centres with space-related activities to become contest "nodes" and help us gather the most imaginative artwork from around the world.
Asteroid Ryugu was observed by VLT successfully
Asteroid Ryugu was observed by the 8.2m telescope of the Very Large Telescope (VLT) of the European Southern Observatory (ESO, Chile) during the night between 11 and 12 July, 2016, and the lightcurve and spectral data were obtained.
Downlink Test Using Ka-band
Today (June 29, 2016), we made a downlink test using Ka-band,and the result was successful. The antenna of DSS26 in Goldstone, DSN (Deep Space Network) of NASA was used and the calibration for the ground station was done today.
We made the first test of Ka-band in the beginning of January 2015, and the test of today was the second time. The distance between the Earth and the spacecraft is about 50 million km, which is about four times larger than the distance at the first test. We are using the X-band (8 GHz) for the daily operation, and we will use the Ka-band (32 GHx) when the spacecraft arrives at Asteroid Ryugu and send the data of Ryugu to us.
Talk Live VOL.3 Report : Spaceguard -- related event to Asteroid Day
The importance of Hayabusa and Hayabusa2 from the point of spaceguard
Earth & Moon Observations with the Near-Infrared Spectrometer (NIRS3)
NIRS3 observed the Earth and the Moon and successfully differentiated between the existence and non-existence of water.
The Optical Link Experiment with the Laser Altimeter (LIDAR)
Hayabusa2 successfully recieved the laser light link at a distance of 6,700,000 km from the Earth.
Photographing the Earth just before Hayabusa2's swing-by : Complete version
This is a complete version of the image that we showed on December 3.
The Earth’s southern hemisphere taken by TIR (Thermal Infrared Imager) on Hayabsua2
On December 4, 2015, the Earth’s southern hemisphere was imaged by TIR (Thermal Infrared Imager) on Hayabusa2, just as the spacecraft left the Earth upon completing its swing-by.
Antarctica and surroundings imaged by HAYABUSA2
Photograph of Antarctica and the surrounding region taken by Hayabusa2 after the Earth swing-by.
Photographing the Earth just before Hayabusa2's swing-by
As the spacecraft approached the Earth on December 3, 2015, Hayabusa2's onboard Wide angle Optical Navigation Camera (ONC-W2) snapped a few photographs of our planet.
The orbit for Hayabusa2's Earth swing-by has been decided!
Hayabusa2 is set to swing-by the Earth on December 3rd, 2015. Two orbital correction manoeuvres (denoted TCM1 and TCM2) were performed back in November and the precise orbit for the swing-by was fixed.
The Earth and Moon taken by TIR (Thermal Infrared Imager) on Hayabsua2 (II)
On November 26, 2015, the image of the Moon circling the Earth was taken with the TIR (Thermal Infrared Imager) onboard the Hayabsua2 spacecraft as it approached the Earth.