Product_Observational

Identification_Area

logical_identifier

urn:nasa:pds:maven.euv.modelled:data.minute.spectra:mvn_euv_l3_minute_20250412

version_id

2.0

title

MAVEN EUV minute averaged modelled irradiance spectra

information_model_version

1.13.0.0

product_class

Product_Observational

Citation_Information

author_list

Eparvier, F. G.

publication_year

2026

description

Extreme UltraViolet (EUV) modeled 1 minute irradiances in 1-nm bins from 0-190 nm for 2025-04-12.

Modification_History

Modification_Detail

modification_date

2026-02-19

version_id

2.0

description

This version includes regenerated data files.

Observation_Area

Time_Coordinates

start_date_time

2025-04-12T00:00:00.000Z

stop_date_time

2025-04-12T23:59:59.999Z

Primary_Result_Summary

purpose

Science

processing_level

Derived

Science_Facets

domain

Magnetosphere

discipline_name

Flux Measurements

Investigation_Area

name

Mars Atmosphere and Volatile EvolutioN

type

Mission

Internal_Reference

lid_reference

urn:nasa:pds:context:investigation:mission.maven

reference_type

data_to_investigation

Observing_System

Observing_System_Component

name

Mars Atmosphere and Volatile Evolution (MAVEN)

type

Spacecraft

Internal_Reference

lid_reference

urn:nasa:pds:context:instrument_host:spacecraft.maven

reference_type

is_instrument_host

Observing_System_Component

name

Extreme Ultraviolet Monitor

type

Instrument

Internal_Reference

lid_reference

urn:nasa:pds:context:instrument:euv.maven

reference_type

is_instrument

Target_Identification

name

Mars

type

Planet

Internal_Reference

lid_reference

urn:nasa:pds:context:target:planet.mars

reference_type

data_to_target

Mission_Area

MAVEN

mission_phase_name

EM-5

spacecraft_clock_start_count

0797687154

spacecraft_clock_stop_count

0797773552

Discipline_Area

Particle_Observation

name

y: Irradiance

description

Solar Irradiances, in W/m^2/nm Modeled EUV irradiances for each wavelength bin, for each minute

Primary_Values

Local_Internal_Reference

local_identifier_reference

y

local_reference_type

particle_observation_to_observation_values

Axis_Values

Local_Internal_Reference

local_identifier_reference

epoch

local_reference_type

particle_observation_to_axis_values

axis_number

1

Axis_Values

Local_Internal_Reference

local_identifier_reference

v

local_reference_type

particle_observation_to_axis_values

axis_number

1

Alternate_Values

name

time values

Data_Values

Local_Internal_Reference

local_identifier_reference

epoch

local_reference_type

data_values_to_data_values

Data_Values

Local_Internal_Reference

local_identifier_reference

x

local_reference_type

data_values_to_data_values

Reference_List

Internal_Reference

lidvid_reference

urn:nasa:pds:maven.spice:spice_kernels:lsk_naif0012.tls::1.0

reference_type

data_to_spice_kernel

comment

This data file was processed using the SPICE leapsecond kernel: naif0012.tls.

Internal_Reference

lidvid_reference

urn:nasa:pds:maven.spice:spice_kernels:sclk_mvn_sclkscet_00129.tsc::1.0

reference_type

data_to_spice_kernel

comment

This data file was processed using the SPICE MAVEN SCLK kernel: MVN_SCLKSCET.00129.tsc.

External_Reference

doi

10.1007/s11214-015-0195-2

reference_text

Eparvier, F.G., Chamberlin, P.C., Woods, T.N. et al. Space Sci Rev (2015) 195:293. doi:10.1007/s11214-015-0195-2

External_Reference

doi

10.1002/2016JA023512

reference_text

Thiemann, E. M. B., P. C. Chamberlin, F. G. Eparvier, B. Templeman, T. N. Woods, S. W. Bougher, B. M. Jakosky (2017), The MAVEN EUVM model of solar spectral irradiance variability at Mars: Algorithms and results, J. Geophys. Res. Space Physics, 122, doi:10.1002/2016JA023512.

File_Area_Observational

File

file_name

mvn_euv_l3_minute_20250412_v18_r01.cdf

creation_date_time

2026-02-19T09:42:05

file_size

3359296

md5_checksum

7c8152e6b18afc1fd4b914a0875126e1

Header

name

CDF Header

offset

0

object_length

404

parsing_standard_id

CDF 3.4 ISTP/IACG

Array

name

flag: Data Useability

local_identifier

xxxflag

offset

11308

axes

1

axis_index_order

Last Index Fastest

description

Data useability flag Data flag: 0:uses best MAVEN proxies, 1: uses lower quality or partial MAVEN proxies, 2: uses no MAVEN proxies but best extrapolated Earth proxies 3: uses no MAVEN proxies AND poor quality Earth proxies.

Element_Array

data_type

SignedMSB2

Axis_Array

axis_name

epoch

elements

1440

sequence_number

1

Special_Constants

error_constant

-32768

valid_maximum

7

valid_minimum

0

Array

name

Epoch Time

local_identifier

xxxepoch

offset

21069

axes

1

axis_index_order

Last Index Fastest

description

CDF TT2000 time Derived from SPICE

Element_Array

data_type

SignedMSB8

Axis_Array

axis_name

epoch

elements

1440

sequence_number

1

Special_Constants

error_constant

-0.0

valid_maximum

812548800000000000

valid_minimum

438004800000000000

Array

name

x: Unix Time

local_identifier

xxxx

offset

35175

axes

1

axis_index_order

Last Index Fastest

description

Timestamps for each minute of day, center of minute, in UNIX time. UNIX time: Number of seconds elapsed since 1970-01-01/00:00:00.

Element_Array

data_type

IEEE754MSBDouble

Axis_Array

axis_name

epoch

elements

1440

sequence_number

1

Special_Constants

error_constant

-1.0E31

valid_maximum

1.74450234E9

valid_minimum

1.744416E9

Array

name

y: Irradiance

local_identifier

xxxy

offset

49495

axes

2

axis_index_order

Last Index Fastest

description

Solar Irradiances, in W/m^2/nm Modeled EUV irradiances for each wavelength bin, for each minute

Element_Array

data_type

IEEE754MSBSingle

Axis_Array

axis_name

epoch

elements

1440

sequence_number

1

Axis_Array

axis_name

Wavelength

elements

190

sequence_number

2

Special_Constants

error_constant

-1.0E31

valid_maximum

0.0032723553

valid_minimum

4.2328514E-7

Array

name

v: Wavelength

local_identifier

xxxv

offset

1145805

axes

2

axis_index_order

Last Index Fastest

description

Wavelength, in nm Center wavelength (nm) of each 1-nm bin from 0-190 nm, repeated for each minute

Element_Array

data_type

IEEE754MSBSingle

Axis_Array

axis_name

epoch

elements

1

sequence_number

1

Axis_Array

axis_name

Wavelength

elements

190

sequence_number

2

Special_Constants

error_constant

-1.0E31

valid_maximum

189.5

valid_minimum

0.5

Array

name

dy: Model Irradiance Uncertainty

local_identifier

xxxdy

offset

1155454

axes

2

axis_index_order

Last Index Fastest

description

Model uncertainty Model Uncertainty (precision) of y values In %

Element_Array

data_type

IEEE754MSBSingle

Axis_Array

axis_name

epoch

elements

1440

sequence_number

1

Axis_Array

axis_name

Wavelength

elements

190

sequence_number

2

Special_Constants

error_constant

-1.0E31

valid_maximum

0.4063573

valid_minimum

0.25144902

Array

name

dv: TOTAL Combined Uncertainty

local_identifier

xxxdv

offset

2251132

axes

2

axis_index_order

Last Index Fastest

description

Total combined uncertainty TOTAL combined uncertainty (accuracy) of y values In %

Element_Array

data_type

IEEE754MSBSingle

Axis_Array

axis_name

epoch

elements

1440

sequence_number

1

Axis_Array

axis_name

Wavelength

elements

190

sequence_number

2

Special_Constants

error_constant

-1.0E31

valid_maximum

0.46436605

valid_minimum

0.25280517

Array

name

Sun distance

local_identifier

xxxmaven_sun_distance

offset

3346821

axes

1

axis_index_order

Last Index Fastest

description

Sun distance from MAVEN Sun distance from MAVEN (km)

Element_Array

data_type

IEEE754MSBDouble

Axis_Array

axis_name

epoch

elements

1440

sequence_number

1

Special_Constants

error_constant

-1.0E31

valid_maximum

2.5E8

valid_minimum

2.06E8