Sentinel-6A MF Jason-CS L1A P4 Altimeter High Resolution (HR) STC Intermediate Outputs with Instrument Calibrations

(JASON_CS_S6A_L1A_ALT_HR_STC_F)

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Version	F
Processing Level	1A
Start/Stop Date	2020-Dec-07 to Present
Short Name	JASON_CS_S6A_L1A_ALT_HR_STC_F
Description	Provides L1A high resolution (HR) short time critical (STC; 36-hour latency) altimetry intermediate outputs from the Poseidon-4 SAR altimeter on the Sentinel-6A Michael Freilich spacecraft, which are geo-located bursts of Ku-band echoes (at ~140 Hz) with all instrument calibrations applied and full rate complex waveforms for delay/Doppler or HR processing. The S6A STC product is analogous to the Jason-3 IGDR product.
DOI	10.5067/S6AP4-1AHST
Measurement	OCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT OCEANS > OCEAN WAVES > SIGNIFICANT WAVE HEIGHT
Swath Width	11 km
Platform/Sensor	Sentinel-6A Platform Name: Sentinel-6A (Sentinel-6A) / Poseidon-4 Radar Altimeter SENSOR Name: Poseidon-4 Radar Altimeter (Poseidon-4 Radar Altimeter) Sentinel-6A Platform Name: Sentinel-6A (Sentinel-6A) / AMR-C SENSOR Name: Advanced Microwave Radiometer-C (AMR-C) Sentinel-6A Platform Name: Sentinel-6A (Sentinel-6A) / DORIS SENSOR Name: Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Sentinel-6A Platform Name: Sentinel-6A (Sentinel-6A) / GNSS RECEIVER SENSOR Name: GNSS RECEIVER (GNSS RECEIVER) Sentinel-6A Platform Name: Sentinel-6A (Sentinel-6A) / GNSS-RO RECEIVER SENSOR Name: Global Navigation Satellite System Radio Occultation (CLARREO) (GNSS-RO RECEIVER) Sentinel-6A Platform Name: Sentinel-6A (Sentinel-6A) / Star Tracker SENSOR Name: Star Tracker (Star Tracker) Show More
Project	Sentinel-6A Michael Freilich/Jason-CS (Sentinel-6)
Data Provider	Publisher: PO.DAAC Creator: Ocean Surface Topography Science Team Release Place: PO.DAAC Release Date: 2021-Jun-22
Format	netCDF-4
Keyword(s)	SSHA, calibrated echoes, Jason-CS, S6A, SSH, Sea Surface Height Anomalies, Sentinel-6, calibrated, SLA, Sentinel-6A, Wave Height, Jason, Sentinel-6A Michael Freilich, waveforms

Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov

Resolution Temporal Resolution: Weekly - < Monthly Coverage Region: GLOBAL OCEAN Region: GLOBAL North Bounding Coordinate: 66.15 degrees South Bounding Coordinate: -66.15 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 2020-Dec-07 to Present Swath Width: 11 km

DIRECT ACCESS
Browse Granule Listing
https://cmr.earthdata.nasa.gov/virtual-directory/collections/C1968979558-POCLOUD
Search Granules
https://search.earthdata.nasa.gov/search/granules?p=C1968979558-POCLOUD
This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command line interface. The URL redirects to the data-subscriber home page with instructions for utilizing the tool
https://github.com/podaac/data-subscriber
DIRECT S3-ACCESS
Available for access in-region with AWS Cloud
Region
us-west-2
Bucket/Object Prefix: Protected buckets contain the data files for a given collection. Protected simply means users must log in to Earthdata Login before gaining access to contents within that S3 Bucket. Please use the S3Credential endpoint to gain an Earthdata login token for use in S3 Access. Public buckets, in contrast, house metadata such as checksums, imagery, and metadata files and the like. A user can access public buckets and these types of files without logging in to Earthdata Login. Most of the time, you'll want to access the protected bucket Information
podaac-ops-cumulus-protected/JASON_CS_S6A_L1A_ALT_HR_STC_F/
podaac-ops-cumulus-public/JASON_CS_S6A_L1A_ALT_HR_STC_F/
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Name	Long Name	Unit
/data_140/ku/altimeter_clock	altimeter clock	Hz
/data_140/ku/altimeter_power_drift	power scaling: power drift orbital and aging correction (from CAL1)	dB
/data_140/ku/altitude	center of mass altitude above the reference ellipsoid	m
/data_140/ku/altitude_rate	center of mass altitude rate with respect to the reference ellipsoid	m/s
/data_140/ku/attenuation_calibrated	power scaling: ATT calibrated (from ATT table)	dB
/data_140/ku/burst_counter	L1A record burst counter	1
/data_140/ku/cai	Coarse Altitude instruction (CAI, same for 64 pulses)	T0*4
/data_140/ku/cal1_power	intrument impulse response max/total power	dB
/data_140/ku/fai	Fine Altitude Instruction (FAI, same for 64 pulses)	T0/16/64
/data_140/ku/i_samples	SAR L1A Ku i-samples, arranged in bursts of 64x256 elements. I samples are scaled to range [-127, +127].	1
/data_140/ku/latitude	latitude	degrees_north
/data_140/ku/longitude	longitude	degrees_east
/data_140/ku/manoeuvre_flag	flag indicating whether the satellite is in a manoeuvre
/data_140/ku/mcd_flags	measurement confidence data (MCD): collection of error flags (Ku-band)
/data_140/ku/off_nadir_pitch_angle_pf	off-nadir pitch angle measured by the platform	degrees
/data_140/ku/off_nadir_roll_angle_pf	off-nadir roll angle measured by the platform	degrees
/data_140/ku/off_nadir_yaw_angle_pf	off-nadir yaw angle measured by the platform	degrees
/data_140/ku/orbit_type_flag	orbit type used
/data_140/ku/p4_instrument_configuration_flags	collection of flags from the P4 instrument source packets
/data_140/ku/p4_mode_flag	P4 mode identifier from the P4 Instrument Source Packets
/data_140/ku/power_scaling_to_antenna	power scaling: overall instrument gain	dB
/data_140/ku/ptr_main_lobe_width	PTR main lobe width	m
/data_140/ku/q_samples	SAR L1A Ku q-samples, arranged in bursts of 64x256 elements. Q samples are scaled to range [-127, +127].	1
/data_140/ku/range_cor_com	range correction: 1-way distance CoM-antenna	m
/data_140/ku/range_cor_doppler	range correction: 1-way Doppler compensation	m
/data_140/ku/range_cor_internal_delay_att	range correction: 1-way compensation for the delay introduced by the attenuator	m
/data_140/ku/range_cor_internal_delay_cal	range correction: 1-way internal calibration path delay (from CAL1)	m
/data_140/ku/range_cor_uso	range correction: 1-way USO drift	m
/data_140/ku/snr_instr_estimation	instrument estimated SNR from telemetry	dB
/data_140/ku/surface_classification_flag	flag indicating the surface type
/data_140/ku/telemetry_type_flag	telemetry type: RAW or RMC
/data_140/ku/time	time in UTC	seconds since 2000-01-01 00:00:00
/data_140/ku/time_tai	time in TAI	seconds since 2000-01-01 00:00:00
/data_140/ku/tm_ambiguity_rank	ambiguity rank (from ISP)	1
/data_140/ku/tm_burst_num	burst number (from 1 to 7)	1
/data_140/ku/tm_cor2	COR2 telemetry	T0/16/64
/data_140/ku/tm_h0	H0 telemetry	T0/4
/data_140/ku/tm_nimp	number of pulses in 1 radar cycle (from ISP)	1
/data_140/ku/tm_pri	Pulse Repetition Interval (form ISP)	T0*4
/data_140/ku/tm_source_sequence_counter	instrument source sequence counter	1
/data_140/ku/tracker_range_calibrated	calibrated 1-way tracker range: CoM to middle range window (at sample samples/2 from 0)	m
/data_140/ku/tracker_range_calibrated_diode	calibrated 1-way tracker range from DIODE + DEM: CoM to middle range window (at sample samples/2 from 0)	m
/data_140/ku/variable_digital_gain	power scaling: variable digital gain	dB
/data_140/ku/velocity_vector	center of mass velocity vector in ITRF, components: [1] x, [2] y, [3] z	m/s
/global/ku/antenna_gain	Maximum antenna gain	dB
/global/ku/burst_phase_array_cor	burst phase correction	rad
/global/ku/burst_power_array_cor	burst power correction	dB
/global/ku/cal2_correction	normalized CAL2 for the waveforms correction	1
/global/ku/g_scaling	Ratio of gain losses between the tracking path and the calibration path	dB
/global/ku/processing_configuration_flags	collection of parameters from the processor configuration file
/global/ku/range_cor_external_group_delay	range correction: 1-way external group delay from ground characterization	m
/global/ku/range_oversampling_factor	oversampling factor used in the range compression (FFT)	1
/global/ku/residual_fixed_digital_gain_raw	power scaling: residual on-board fixed digital processing gain for HR RAW	dB
/global/ku/residual_fixed_digital_gain_rmc	power scaling: residual on-board fixed digital processing gain for HR RMC	dB
pulses	index of pulses within a burst
samples	index of I and Q samples within a pulse
space_3d	index of cartesean coordinates

DATA CITATION GUIDELINES
https://podaac.jpl.nasa.gov/CitingPODAAC Data Use and Citation Guidelines
GENERAL DOCUMENTATION
https://www.jpl.nasa.gov/missions/sentinel-6/ The mission page for Sentinel-6A MF on the NASA Jet Propulsion Laboratory (JPL) website.
https://sealevel.jpl.nasa.gov/missions/jasoncs/ The mission page for Sentinel-6A MF on the NASA Ocean Surface Topography (OST) website.
https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-6 The mission page for Sentinel-6A MF on the European Space Agency (ESA) website.
https://podaac.jpl.nasa.gov/Sentinel-6 The mission page for Sentinel-6A MF on the PO.DAAC website.
https://www.eumetsat.int/sentinel-6 The mission page for Sentinel-6A MF on the EUMETSAT website.
https://podaac.jpl.nasa.gov/forum/viewforum.php?f=97 PO.DAAC Forum Page for Sentinel-6A MF
DATA RECIPE
https://github.com/podaac/sentinel6 Jupyter notebooks to access and manipulate data from Sentinel-6A MF.
https://github.com/podaac/data-readers Generic Data Readers
USER'S GUIDE
https://www.eumetsat.int/altimetry-resources Documentation hosted by EUMETSAT including the Generic File Naming Convention, and the Level 1 and Level 2 Product Format Specifications.

Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.

Citation

Ocean Surface Topography Science Team. 2021. Sentinel-6A MF Jason-CS L1A P4 Altimeter High Resolution (HR) STC Intermediate Outputs with Instrument Calibrations. Ver. F. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/S6AP4-1AHST

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For more information see Data Citations and Acknowledgments.

Journal Reference

Donlon, C. J, R. Cullen, L. Giulicchi, P. Vuilleumier, C. R. Francis, M. Kuschnerus, W. Simpson, A. Bouridah, M. Caleno, R. Bertoni, J. Rancaño, E. Pourier, A. Hyslop, J. Mulcahy, R. Knockaert, C. Hunter, A. Webb, M. Fornari, P. Vaze, S. Brown, J. Willis, S. Desai, J-D Desjonqueres, R. Scharroo, C. Martin-Puig, E. Leuliette, A. Egido, W. H. F. Smith, P. B., S. Le Gac, N. Picot, and G. Tavernier. 2021. The Copernicus Sentinel-6 mission: Enhanced continuity of satellite sea level measurements from space, Remote Sensing of Environment, 258. 10.1016/j.rse.2021.112395

Cloud Enabled

Status:

ACTIVE

Short Name:

JASON_CS_S6A_L1A_ALT_HR_STC_F

Collection Concept ID:

C1968979558-POCLOUD

Spatial Coverage:

N: 66.15°

S: -66.15°

E: 180°

W: -180°

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                        Simple: podaac-data-downloader -c JASON_CS_S6A_L1A_ALT_HR_STC_F -d ./data --start-date 2020-12-07T01:15:01Z --end-date 2020-12-14T01:15:01Z -e ""
Download by Spatial and Temporal Search: podaac-data-downloader -c JASON_CS_S6A_L1A_ALT_HR_STC_F -d ./data --start-date 2020-12-07T01:15:01Z --end-date 2020-12-14T01:15:01Z -b="-180,-66.15,180,66.15"
Download by Extension: podaac-data-downloader -c JASON_CS_S6A_L1A_ALT_HR_STC_F -d ./data --start-date 2020-12-07T01:15:01Z --end-date 2020-12-14T01:15:01Z -e .nc
Download by Cycle: podaac-data-downloader -c JASON_CS_S6A_L1A_ALT_HR_STC_F -d ./data --cycle 2
Download recent data (360 min.): podaac-data-subscriber -c JASON_CS_S6A_L1A_ALT_HR_STC_F -d ./data -m 360
Download recent data (1440 min.): podaac-data-subscriber -c JASON_CS_S6A_L1A_ALT_HR_STC_F -d ./data -m 1440

Direct S3-Access

Available for access in-region with AWS Cloud

Region:

us-west-2

Bucket/Object Prefix Protected buckets contain the data files for a given collection. Protected simply means users must log in to Earthdata Login before gaining access to contents within that S3 Bucket. Please use the S3Credential endpoint to gain an Earthdata login token for use in S3 Access.

Public buckets, in contrast, house metadata such as checksums, imagery, and metadata files and the like. A user can access public buckets and these types of files without logging in to Earthdata Login.

Most of the time, you'll want to access the protected bucket Information

podaac-ops-cumulus-protected/JASON_CS_S6A_L1A_ALT_HR_STC_F/

podaac-ops-cumulus-public/JASON_CS_S6A_L1A_ALT_HR_STC_F/

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Sentinel-6A MF Jason-CS L1A P4 Altimeter High Resolution (HR) STC Intermediate Outputs with Instrument Calibrations

Sentinel-6A MF Jason-CS L1A P4 Altimeter High Resolution (HR) STC Intermediate Outputs with Instrument Calibrations

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