Chinese H-alpha Solar Explorer

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Chinese H-alpha Solar Explorer - Wikipedia

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Chinese H-alpha Solar Explorer (CHASE)
Spacecraft properties

Mission type	Solar astronomy
Operator	CNSA
COSPAR ID	2021-091A
SATCAT no.	49315
Mission duration	Elasped: 3 years


Manufacturer	Chinese Academy of Sciences
Launch mass	508 kg


Start of mission
Launch date	14 October 2021, 10:51:00 GMT
Rocket	Long March 2D
Launch site	Taiyuan Satellite Launch Center
Contractor	China Aerospace Science and Technology Corporation


Orbital parameters
Reference system	Sun-synchronous orbit
Inclination	98°
Period	94 minutes

Chinese H-alpha Solar Explorer (CHASE), also named Xihe (Chinese: 羲和) after the solar deity,^[1] is China's first solar observatory. It was launched aboard a Long March 2D rocket on 14 October 2021. CHASE is a 508 kg (1,120 lb) satellite operating at a 517-kilometer-altitude Sun-synchronous orbit, with an orbital period of around 94 minutes.^[2]^[3]

Notes

^ Clark, Stephen (18 October 2021). "China launches orbiting solar observatory". Spaceflight Now. Retrieved 22 June 2022.
^ Jones, Andrew (14 October 2021). "China launches first solar observatory, tests grid fins". SpaceNews. Retrieved 22 June 2022.
^ Davenport, Justin (14 October 2021). "China launches hydrogen-alpha solar telescope aboard Long March 2D". NASASpaceFlight. Retrieved 22 June 2022.

v t e Solar space missions
List of heliophysics missions - List of solar telescopes
Current	ACE (since 1997) Aditya-L1 (since 2023) ASO-S (since 2022) CHASE (Xihe) (since 2021) DSCOVR (since 2015) Hinode (Solar-B) (since 2006) IRIS (since 2013) Parker Solar Probe (since 2018) PROBA-3 (since 2024) PUNCH (since 2025) Solar and Heliospheric Observatory (since 1995) Solar Dynamics Observatory (since 2010) Solar Orbiter (since 2020) STEREO (since 2006) Wind (since 1994)
Past	Apollo Telescope Mount CORONAS-I CORONAS-F CORONAS-Photon EURECA ESRO 2B Genesis GOES 13 Helios Hinotori (Astro-A) IMP-8 ISEE-1 ISEE-2 ICE / ISEE-3 MinXSS1 MinXSS2 Orbiting Solar Observatory OSO 1 OSO 2/OSO B OSO 3 OSO 4 OSO 5 OSO 6 OSO 7 OSO 8 Solwind PICARD Pioneer 5 Pioneer 6, 7, 8 and 9 PROBA-2 Prognoz programme RHESSI SOLAR SolarMax Spartan 201 Taiyo (SRATS) TRACE Ulysses Yohkoh (Solar-A)
Planned	SWFO-L1 (2025) TRACERS (2025) SOLAR-C (2028) HelioSwarm (2028) Solar Polar Orbit Observatory (2029) Vigil (2031)
Proposed	ADAHELI SETH Sundiver GSST
Cancelled	AOSO Pioneer H OSO J OSO K Solar Cruiser Solar Sentinels
Lost	Pioneer E OSO C
Sun-Earth	SORCE SXI ACRIMSAT Electrojet Zeeman Imaging Explorer (since 2025)
Category

Space telescopes

Operating

Radio and Microwave	NCLE (since 2018) Solar Orbiter (since 2020) STEREO (since 2006) Queqiao (since 2018) Wind (since 1994) Queqiao 2 (since 2024)
Infrared	Odin (since 2001) James Webb (since 2022) SPHEREx (since 2025)
Optical	Aoi (since 2018) Astrosat (since 2015) BRITE constellation (since 2013) CHASE (since 2021) CHEOPS (since 2019) DSCOVR (since 2015) Euclid (since 2023) Hayabusa2 (since 2021) HiRISE (since 2005) Hubble (since 1990) Hinode (Solar-B) (since 2006) NEOSSat (since 2013) Odin (since 2001) SDO (since 2010) SOHO (since 1995) Swift (since 2004) TESS (since 2018) PROBA-3 (since 2024)
Ultraviolet	Aditya-L1 (since 2023) ASO-S (since 2022) Astrosat (since 2015) Hibari (since 2021) Hinode (Solar-B) (since 2006) IRIS (since 2013) SDO (since 2010) SOHO (since 1995) Solar Orbiter (since 2020) STEREO (since 2006) Swift (since 2004) PROBA-3 (since 2024)
X-ray and Gamma-ray	CALET (since 2015) Chandra (AXAF) (since 1999) DAMPE (since 2015) Einstein Probe (since 2024) HXMT (Insight) (since 2017) Fermi (since 2008) GECAM (since 2020) IXPE (since 2021) Spektr-RG (since 2019) SVOM (since 2024) Swift (since 2004) Max Valier Sat (since 2017) MAXI (since 2009) MinXSS-2 (since 2018) NICER (since 2017) NuSTAR (since 2012) LEIA (since 2022) XRISM (since 2023) XPoSat (since 2024) XMM-Newton (since 1999)
Other (particle or unclassified)	ACE (since 1997) AMS-02 (since 2011) CALET (since 2015) DAMPE (since 2015) IBEX (since 2008) ISS-CREAM (since 2017) Mini-EUSO (since 2019) SOHO (since 1995) Solar Orbiter (since 2020) STEREO (since 2006)

Planned

PETREL (2025)
K-EUSO (2026)
Nancy Grace Roman Space Telescope (2026)
PLATO (2026)
Xuntian (2026)
COSI (2027)
LORD (2027)
NEO Surveyor (2027)
JASMINE (2028)
Solar-C EUVST (2028)
ARIEL (2029)
Spektr-UV (2030)
UVEX (2030)
Spektr-M (2030+)
LiteBIRD (2032)
Taiji (2033)
Athena (2035)
LISA (2035)

Proposed

Retired

AGILE (2007–2024)
Akari (Astro-F) (2006–2011)
ALEXIS (1993–2005)
Alouette 1 (1962–1972)
Ariel 1 (1962, 1964)
Ariel 2 (1964)
Ariel 3 (1967–1969)
Ariel 4 (1971–1972)
Ariel 5 (1974–1980)
Ariel 6 (1979–1982)
ASTERIA (2017–2019)
ATM (1973–1974)
ASCA (Astro-D) (1993–2000)
Astro-1 (1990)
- BBXRT
- HUT
Astro-2 (HUT) (1995)
Astron (1983–1991)
ANS (1974–1976)
BeppoSAX (1996–2003)
CHIPSat (2003–2008)
Compton (CGRO) (1991–2000)
CoRoT (2006–2013)
Cos-B (1975–1982)
COBE (1989–1993)
CXBN-2 (2017–2019)
DXS (1993)
EPOCh (2008)
EPOXI (2010)
Explorer 11 (1961)
EXOSAT (1983–1986)
EUVE (1992–2001)
FUSE (1999–2007)
Gaia (2013–2025)
GALEX (2003–2013)
Gamma (1990–1992)
Ginga (Astro-C) (1987–1991)
Granat (1989–1998)
Hakucho (CORSA-b) (1979–1985)
HALCA (MUSES-B) (1997–2005)
HEAO-1 (1977–1979)
Herschel (2009–2013)
Hinotori (Astro-A) (1981–1991)
Hisaki (SPRINT-A) (2013–2023)
HEAO-2 (Einstein Obs.) (1978–1982)
HEAO-3 (1979–1981)
HETE-2 (2000–2008)
Hipparcos (1989–1993)
ILO-X (2024)
INTEGRAL (2002–2025)
IRAS (1983)
IRTS (1995–1996)
ISO (1996–1998)
IUE (1978–1996)
IXAE (1996–2004)
Kepler (2009–2018)
Kristall (1990–2001)
Kvant-1 (1987–2001)
LEGRI (1997–2002)
LISA Pathfinder (2015–2017)
MinXSS (2015–2017)
MOST (2003–2019)
MSX (1996–1997)
Mikhailo Lomonosov (2016–2019?)
OAO-2 (1968–1973)
OAO-3 (Copernicus) (1972–1981)
Orbiting Solar Observatory
- OSO 1
- OSO B
- OSO 3
- OSO 4
- OSO 5
- OSO 6
- OSO 7
- OSO 8
Orion 1 (1971)
Orion 2 (1973)
PAMELA (2006–2016)
PicSat (2018)
Planck (2009–2013)
RELIKT-1 (1983–1984)
R/HESSI (2002–2018)
ROSAT (1990–1999)
RXTE (1995–2012)
SAMPEX (1992–2004)
SAS-B (1972–1973)
SAS-C (1975–1979)
SOLAR (2008–2017)
Solwind (1979–1985)
Spektr-R (2011–2019)
Spitzer (2003–2020)
Suzaku (Astro-EII) (2005–2015)
Taiyo (SRATS) (1975–1980)
Tenma (Astro-B) (1983–1985)
Uhuru (1970–1973)
Vanguard 3 (1959)
WMAP (2001–2010)
WISE (2009–2024)
Yokoh (Solar-A) (1991–2001)

Hibernating
(Mission completed)

SWAS (1998–2005)
TRACE (1998–2010)

Lost/Failed

OAO-1 (1966)
OAO-B (1970)
CORSA (1976)
CXBN (2012–2013)
OSO C (1965)
ABRIXAS (1999)
HETE-1 (1996)
WIRE (1999)
Astro-E (2000)
Tsubame (2014–2015)
Hitomi (Astro-H) (2016)

Cancelled

Great Observatories program
List of space telescopes
List of proposed space telescopes
X-ray telescope
List of heliophysics missions
List of planetariums
Hubble (2010 documentary)
Deep Sky (2023 documentary)
Unknown: Cosmic Time Machine (2023 documentary)

Category:Space telescopes

Chinese space program

Spaceports and landing sites	Jiuquan Taiyuan Wenchang Xichang Siziwang Banner (landing site)
Launch vehicles	Long March 1 Long March 2 Long March 3 Long March 3A Long March 3B Long March 3C Long March 4 Long March 4A Long March 4B Long March 4C Long March 5 Long March 6 Long March 7 Long March 8 Long March 9 (In development) Long March 10 (In development) Long March 11 Long March 12 Kuaizhou Kaituozhe
Exploration programs	Shuguang (cancelled) CMS (human spaceflight) Chang'e (lunar exploration) Tiangong (space station) Tianwen (interplanetary exploration)

Projects and missions

Science

Planetary science	Chang'e 1 (2007–2009) Chang'e 2 (2010–2014) Yinghuo 1† (2011) Chang'e 3 (2013–2016) Yutu rover (2013–2016) Chang'e 5-T1 (2014–2020) Chang'e 4 (2018–present) Yutu-2 rover (2018–present) Tianwen-1 (2020–present) Chang'e 5 (2020) Zhurong rover (2021–present) Chang'e 6 (2024) Tianwen-2 (2025– present) Chang'e 7 (2026) Chang'e 8 (2028) Tianwen-3 (2028) Tianwen-4 (2029)
Astronomy and cosmology	DAMPE (2015–present) HXMT (2017–present) GECAM (2020–present) CHASE (2021–present) ASO-S (2022–present) Einstein Probe (2024–present) SVOM (2024–present) Xuntian (2026) Solar Polar Orbit Observatory (2029) Space Solar Telescope
Earth observation	Ziyuan Series (CBERS) (1999–present) Haiyang Series (2002–present) Double Star (2003–2007) Yaogan Series (2006–present) Gaofen Series (2013–present) TanSat (2016–present) CSES (2018–present) SMILE (2025)

Human
spaceflight

Uncrewed expeditions	Shenzhou 1 Shenzhou 2 Shenzhou 3 Shenzhou 4 Shenzhou 8
Crewed expeditions	Shenzhou 5 Shenzhou 6 Shenzhou 7 Shenzhou 9 Shenzhou 10 Shenzhou 11 Shenzhou 12 Shenzhou 13 Shenzhou 14 Shenzhou 15 Shenzhou 16 Shenzhou 17 Shenzhou 18 (List of Chinese astronauts)
Space laboratories and cargos	Tiangong 1 (2011–2018) Tiangong 2 (2016–2019) Tianzhou 1 (2017) Tianzhou 2 (2021) Tianzhou 3 (2021) Tianzhou 4 (2022) Tianzhou 5 (2022) Tianzhou 6 (2023)
Tiangong space station modules	Tianhe (2021–present) Wentian (2022–present) Mengtian (2022–present)