KSAT-2

{{Short description|Japanese satellite}}

{{Use American English|date=October 2021}}

{{Use dmy dates|date=October 2021}}

{{Infobox spaceflight

| name = KSAT-2

| names_list = Hayato-2

| image =

| image_caption =

| image_size = 300px

| mission_type = Technology demonstration
Atmospheric research

| operator = Kagoshima University

| COSPAR_ID = 2014-009G

| SATCAT = 39578

| website = {{url|http://leo.sci.kagoshima-u.ac.jp/~n-lab/KSAT-HP/Ksat2_E.html}}

| mission_duration = 80 days (achieved)

| spacecraft = CubeSat

| spacecraft_bus = 1U CubeSat

| manufacturer = Kagoshima University

| launch_mass = {{cvt|1.5|kg}}

| dimensions = {{cvt|10 x 10 x 10|cm}}

| power = 2 deployable fixed solar panels, solar cells and batteries

| launch_date = 27 February 2014, 18:37 UTC{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|first=Jonathan|last=McDowell |publisher=Jonathan's Space Report|access-date=1 January 2015}}

| launch_rocket = H-IIA (202)

| launch_site = Tanegashima, Yoshinobu 1

| launch_contractor = Mitsubishi Heavy Industries

| decay_date = 18 May 2014

| orbit_reference = Geocentric orbit{{cite web|url=http://planet4589.org/space/log/satcat.txt|title=Satellite Catalog|first=Jonathan|last=McDowell|author-link=Jonathan McDowell|work=Jonathan's Space Page|access-date=1 January 2015}}

| orbit_regime = Low Earth orbit

| orbit_periapsis = {{cvt|382|km}}

| orbit_apoapsis = {{cvt|389|km}}

| orbit_inclination = 65.01°

| orbit_period = 92.26 minutes

| apsis = gee

}}

KSAT-2, also known as Hayato-2 was a Japanese satellite constructed by Kagoshima University as a reflight of its KSAT mission. It has a size of 10 x 10 x 10 cm (without extendible antenna boom) and is built around a standard 1U CubeSat satellite bus. The primary satellite payload is a radio-frequency water vapor detector for climatology research.