L1 Product List
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Sensor Processing
Level*1
Product Name
[Product ID]
Primary Parameter

Unit

Grid spacing Algorithm
Version
Developer ATBD PDD Release Note DOI*2
Horizontality Vertical
CPR
L1b CPR One-sensor Received Echo Power and Doppler Product [CPR_NOM] Received Echo Power W 0.5 km 0.1 km vCb JAXA
NICT
Ver: D
Update: 2023/05/31
Ver: H
Update: 2025/01
Ver: vCb
Update: 2025/03/17
https://doi.org/10.57746/EO.01jdvcydwjf63vpdbjp0vz6v64
Radar Reflectivity Factor dBZ
Surface Radar Cross Section dB 0.5 km -
Doppler velocity m/s 0.5 km 0.1 km
Pulse Pair Covariance -
Spectrum Width um
ATLID
L1b [ATL-NOM] Attenuated backscatter (Rayleigh and Mie components) 
*Mie component is split into horizontally polarized and vertically polarized light
/m/sr 0.285 km 0.103 km vAd ESA M Eisinger et al., 2024 Volume A
Ver: 02.10
Update: 2024/12/19

Volume B
Ver: 02.10
Update: 2024/12/19
Ver: vAd
Update: 2025/01/14
https://doi.org/10.57780/eca-224d95c
MSI
L1b [MSI-NOM] Radiance
*Visible (0.67um)
and near-infrared (0.865um),
Short wavelength infrared (1.65um, 2.21um),
Thermal infrared
(8.80um, 10.80um, 12.00um)
VIS, NIR, SWIR:W/m2/um/sr
TIR:K
0.5 km - vAf ESA Volume A
Ver: 03.07
Update: 2024/12/18

Volume B
Ver: 03.05
Update: 2024/4/12
Ver: vAe
Update: 2025/01/14
Ver: vAf
Update: coming soon
https://doi.org/10.57780/eca-ed8d339
L1c [MSI-RGR] L1b Radiance
(but corrected for channel-to-channel position)
VIS, NIR, SWIR:W/m2/um/sr
TIR:K
0.5 km - vAf ESA https://doi.org/10.57780/eca-f76d99c
BBR
L1b [BBR-NOM] Shortwave radiance, longwave radiance
(forward, nadir, backward)
W/m2/sr 10 km - vAd ESA Volume A
Ver: 02.07
Update: 2024/08/02

Volume B
Ver: 02.08
Update: 2024/12/09
Ver: vAd
Update: 2025/01/14
https://doi.org/10.57780/eca-6c2df35
*1 EarthCARE products are roughly classified into “Level 1 (L1)” and “Level 2 (L2)”.
Level 1 (L1): Observation data obtained from sensors which are converted into physical quantities (engineering values).
Level 2 (L2): Atmospheric physics values converted from the engineering values of each sensor