SW_WHIxEVT_2_

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CH_DNS_ACC_2_CH_TEC_TMS_2F CH_WND_ACC_2_CS_MAG GF_DNSxACC_2_GF_NE__KBR_2F GF_TECxTMS_2F GF_WNDxACC_2_GFx_FGM_ACAL_CORR GO_MAG_ACAL_CORR GR_DNSxACC_2_GR_NE__KBR_2F GR_TECxTMS_2F GR_WNDxACC_2_GRACE_x_MAG MM_CON_EPH_2_SW_ACCx_AE_2_SW_ACCxCAL_2_SW_ACCxPOD_2_SW_AEJxLPL_2F SW_AEJxLPS_2F SW_AEJxPBL_2F SW_AEJxPBS_2F SW_AOBxFAC_2F SW_ASMxAUX_1B SW_ASMxBUR_1B SW_AUXxORBCNT SW_CFW_SHA_2Y SW_DNSxACC_2_SW_DNSxPOD_2_SW_EEFxTMS_2F SW_EFIx_LP_1B SW_EFIx_LP_FP SW_EFIx_LP_HM SW_EFIx_TCT02 SW_EFIx_TCT16 SW_EFIx_TII1B SW_EFIxIDM_2_SW_EFIxLPI_1B SW_EFIxTIE_2_SW_EFIxTISH1B SW_EFIxTISL1B SW_EGF_SHA_2_SW_FAC_LLS_2F SW_FAC_SVD_2F SW_FAC_TMS_2F SW_FACxTMS_2F SW_GPSx_RN_1B SW_GPSx_RO_1B SW_GPSxNAV_1B SW_IBIxTMS_2F SW_IBP_CLI_2_SW_IPDxIRR_2F SW_LP_x_CA_1B SW_MAGx_CA_1B SW_MAGx_HR_1B SW_MAGx_LR_1B SW_MCO_SHA_2C SW_MCO_SHA_2D SW_MCO_SHA_2F SW_MCO_SHA_2X SW_MCO_SHA_2Y SW_MCR_1DM_2_SW_MIN_1DM_2_SW_MIO_SHA_2C SW_MIO_SHA_2D SW_MIO_SHA_2E SW_MITx_LP_2F SW_MITxTEC_2F SW_MLI_SHA_2C SW_MLI_SHA_2D SW_MLI_SHA_2E SW_MMA_SHA_2C SW_MMA_SHA_2F SW_MODx_SC_1B SW_MTI_SHA_2C SW_NIX_TMS_2F SW_PC1xMAG_2F SW_PPIxFAC_2F SW_SC_xDYN_1B SW_SP3xCOM_2_SW_SP3xKIN_2_SW_STRxATT_1B SW_STRxEPF_1B SW_TECxTMS_2F SW_TIX_TMS_2F SW_ULFxMAG_2F SW_VFMxAUX_1B SW_VOBS_1M_2_SW_VOBS_4M_2_SW_WHIxEVT_2_

Full product name

Whistler Events from ASM BM 250Hz data

DOI:

European Space Agency, Institut de physique du globe de Paris, 2023, "SW_WHIxEVT_2_", European Space Agency, https://doi.org/10.57780/esa-4359315

Description

The WHIxEVT_2_ Product contains information about the Extremely Low Frequency (ELF) portion of whistlers detected during ASM Burst Mode sessions.

Data Access

Files
- HTTPS (Product files): https://swarm-diss.eo.esa.int/#swarm/Level2daily/Latest_baselines/WHI/EVT
- FTP (Product files): ftp://swarm-diss.eo.esa.int/Level2daily/Latest_baselines/WHI/EVT

Output variables

Variable	Units	Description	Dim	Type
Timestamp_Whistler	UTC	Time of start of whistler signal	N	CDF_EPOCH
Latitude	deg	Position in ITRF - Latitude	N	CDF_DOUBLE
Longitude	deg	Position in ITRF - Longitude	N	CDF_DOUBLE
Radius	m	Position in ITRF - Radius	N	CDF_DOUBLE
LT	hours	Local Time at satellite position	N	CDF_DOUBLE
Whistler_Dispersion	s^½	Dispersion of whistler signal	N	CDF_DOUBLE
Whistler_t0	UTC	Estimated initial time of whistler propagation inside the ionosphere	N	CDF_EPOCH
Whistler_t0_uncertainty	s	Estimated uncertainty on Whistler_t0	N	CDF_DOUBLE
Intensity	pT²Hz^-1	Intensity of whistler signal in the frequency range between 16 and 125 Hz	N	CDF_DOUBLE
Timestamp	UTC	Time of the time series in the whistler time-window	N*m	CDF_EPOCH
TimeFrac	ns	Fractional time of observation: ns within second in the whistler time-window	N*m	CDF_UINT4
F_analysed	nT	High-pass filtered magnetic field intensity in the whistler time-window	N*m	CDF_DOUBLE
Flags	-	Binary combination of the values taken by Flag_outlier Flag_magnetic_condition Flag_heater and Flag_step	N*m	CDF_UINT1
Timestamp_PSD	UTC	Time of the PSD over the whistler time-window	N*m	CDF_EPOCH
Frequencies_PSD	Hz	Frequencies of PSD	p	CDF_DOUBLE
PSD	nT Hz^-½	Power Spectral Density values at Timestamp_PSD over Frequencies_PSD	N * n * p	CDF_DOUBLE

Details

In the Dim column, N indicates the number of whistler events contained in the data file, m the number of points of the corresponding time-series, n the number of points of the corresponding PSD, p the number of frequencies of the PSD

Flags is stored as a 8 bits unsigned integer and can nominally take values from 0 to 15. This number can be written in a binary form such as Flags = '0000abcd', where:

‘a’ stands for Flag_outlier value,
‘b’ stands for Flag_magnetic_condition value,
‘c’ stands for Flag_heater value,
‘d’ stands for Flag_step value.

ASM Whistler Product Description:

ASM Whistler Product Definition

ASM Whistler Available Product list:

ASM Whistler Product list

SW_WHIxEVT_2_

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SW_WHIxEVT_2_

Description

Data Access

Output variables

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