GCOM-C Status(VN08, VN05, VN03)

SSTLST

NDVI
CHLA

Aerosol
Optical Thickness

RGB

Kazuhiro TANAKA
Project Manager
GCOM project team
Joint PI Workshop Jan 22, 2020

1

GCOM-C Status

Successful launch on Dec. 23, 2017

SGLI First Light on Jan. 1, 2018.  2 years anniversaryInitial check out phase was completed on March 28, 2018.

SGLI ALL 29 products are in public since Dec. 20, 2018from G-portal site and JASMES site.

Everything is nominal as planned.
GCOM-C Launch
H-IIA rocket F-37
01:26:22 UTC
On Dec. 23, 2017
Japanese name“SHIKISAI”2GCOM-C Products

Approx. 100GB/day data is downlinked via Svalbard Station.

Approx. 1TB/day products in 156 folders are generated in GCOMC ground system.

Raw Data
100GByte

L1B（１）(per day)
LAND（9）> 1000km
19 channels

Geo＆Radio
ProcessGround
SystemATMOS（8）OCEAN（7）Statistics Processing … etc

GCOM-C“SHIKISAI”

1TB/day
NRT (13)

L1B (2)L2 (16)

L2 Statics
L2 global (42)CRYOS（4）L3 (83)29 Products

156 folders@ G-Portal3

Satellite operation
 Satellite system is stable since launch.
Satellite SystemNormal

TTC-RF, MDHS-RF

NormalMDHS-DH

Tentative stop of MDR operation
on May 21, 2018

TTC-DH

NormalAOCS, RCS

NormalEPS, PDL

NormalTCS

NormalSGLI VNR

Tentative stop of PL Tilt operation
5 times over SAA region.

No tilting for 10-14 hours
Radiation effect is suspected

SGLI IRS

NormalRegular TIR health checkwith 3 months interval

No MDR recording for 10hours
Radiation effect is suspected

Satellite & ground system status is available on G-Portal site.
https://gportal.jaxa.jp/gpr/information/product#GCOM-C
https://suzaku.eorc.jaxa.jp/GCOM_C/users_portal/status_j.html

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PL tilt limit sensor malfunction
PL tilt limit sensor fault detection occurred 5 times in 2 years.

ALL events occurred over South Atlantic Anomaly (SSA) region.

Radiation effect is suspected.

5Satellite status
 Solar array power Total power consumption

GCOM-C for 2 years

GCOM-C for 1 year

GCOM-W for 7 years

GCOM-W for 7 years

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SGLI Cal Trend


LED(Halogen), Solar & Lunar Cals are consistent for VNR-NP & SWI.

1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95

IRS-SWI (Halogen/LED, Solar, and Lunar Cal.)
Ratio (Norm. by fst Cal.)

Ratio (Norm.by 1st Cal.)

VNR-NP(LED, Solar, and Lunar Cal.)

VN11VN50200

400
Days sice launch

600

800

1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95

SW4

SW20200400
Days sice launch

600

800

TIR degradation is small.
TI01 Gain [%](Normalized at Jan. 30, 2018)

TI02 Gain [%](Normalized at Jan. 30, 2018)

0.0

0.0

-0.5

-0.5

-1.0
2018/1-1.0
2018/1

2019/12020/1

2019/1

2020/17GCOM-C satellite orbitOrbital debris avoidance maneuver on March 15 & May 05, 2019.

Inclination maneuver for Local Sun Time is planned 1.5-2years later.
⾯内制御WESTΔλ [km]4030

2019/03/15

2018/03/07 2018/05/30 2018/08/29

2019/05/05

100

Debris Avoidance
Maneuver‐20‐30‐40
2017/12/23

2018/03/18

2018/06/11

2018/09/04

2018/11/28

2019/02/21

2019/05/17

地⽅時 [hh:mm:ss]

2019/08/10

2019/11/03

2020/01/27

EAST

△NOW

‐10

2020/04/21

2020/07/15

2020/10/08

2021/01/01

2020/04/21

2020/07/15

2020/10/08

2021/01/01

NOON

delta‐λ [deg]20

地⽅時 (軌⼒予測)

10:30:00

10:25:00△NOW

10:15:00
2017/12/23

NIGHT

10:20:00

2018/03/18

2018/06/11

2018/09/04

2018/11/28

2019/02/21

2019/05/17

2019/08/10

2019/11/03

2020/01/27

8

Typhoon event in Oct. 20199

Smoke monitoring with SGLI Polarization
Channels Thermal channels is also useful for the hot spot

detection.

Dec.01, 2018  Jan. 01, 2019

July-August, 2018
Hot spot in amazon using thermal channels
on Aug.15, 2019

July-August, 201910

Chlorophyll-a & SSTMulti mission activities is important including cooperation with model.
GCOM-C
SST (8days average)

GCOM-C
Chl-a (8days average)

0.01

0.1

1GCOM-W
SST (8days average)

1011

GCOM symposium on Dec. 20, 2019


1 year anniversary since data release.

Multi-mission activities with GCOM

350 attendance.

https://www.instagram.com/gcom_jaxa/

12Schedule We are now middle in the mission period.
2017

2018

2019

Dec.23▲ ▲Jan.01
Launch Fist Light

2020

2021

20222023

NOW▽

Routine Phase (5 years)
Dec.20 △Data Release

Dec.20 △GCOM Sympo.

△PI W.S. 2019by Mar.27
Initial Check Out
==== by Dec.20
Cal.& Val. Phase13

SummaryGCOM-C satellite and SGLI is stable.
GCOM-C data has been provided to the public
continuously since Dec. 20, 2018.
GCOM-C routine phase operations for 5 years(Dec. 2017 – Dec. 2022)
GCOM mission is in the execution phase
Encouragement to the practical use for the social benefits.
Encouragement to the climate research for GCOM mission.

Thank you

https://gportal.jaxa.jp/gpr/
https://www.eorc.jaxa.jp/cgi-bin/jasmes/sgli_nrt/index.cgi
https://www.instagram.com/gcom_jaxa/
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Back up15

GCOM data & products GCOM data system is now fully
operational.
 GCOM-W & C mission data isprovided to the end users.
 Encouragement to GCOM users[ End Uses ][ User Agency]

Weather
Forecast

JMA

Fishery

JAFIC

Sea Ice Info

Shizuku
GCOM-W

GlobalObservation

GCOM
Ground System

JAXA

NOAA

JCG

Cooperative
Researchers
Agencies

DirectReadout
Service

Svalbard
StationData
LatencyRequirements

GSMap
Sentinel-Asia

ClimateResearch

Shikisai
GCOM-CAsianUsers

Products

Data

US users

EUMETSAT
DataProducts

European users

Practical
Applications

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