INAF-IAPS Solar Orbiter-PAS data

The product contains density N, speed vector V, pressure tensor P, temperature components (Tx, Ty, Tz), and the velocity of the satellite V_solo, computed using the data collected by the Proton-Alpha Sensor (PAS) onboard Solar Orbiter. PAS measures the 3D distribution functions of the dominant ions of the solar wind, from 200 eV to 20 KeV, without mass and charge selection. In practice, this concerns mostly the proton and alfa populations (unseparated). At full resolution, PAS collects the 3D ion distribution function in about 1 second, even though the moments have a cadence of 4 seconds, while in “snapshot” mode the phase space sampling is reduced, allowing a greater cadence for the moments.

Data is hosted on http://soar.esac.esa.int/soar/

References

  1. D’Amicis et al, Astronomy &Astrophysics 656, A21 (2021)

  1. Lavraud et al, Astronomy &Astrophysics 656, A37 (2021)

  1. Perrone et al, Astronomy &Astrophysics 668, A189 (2022)

  1. De Marco et al, Astronomy &Astrophysics, 669, A108 (2023)

Dataset summary

internal_name:

inaf_data_solopas_timeseries

publisher:

INAF-IAPS, Plasma & Space Weather Group

alph_code:

14

id_tmp:

72

short_name:

SolO-PAS_data

identifier:

aspis://inaf/data_solopas_timeseries

dynamic:

a file each day (file size between 3 and 4 Mb). As a general rule, one month of data is uploaded each month, generally relating to 3 months before the upload date

size:

2GB

format:

dsv

type:

timeseries

records_number:

38653

time_start:

2020-07-06

time_stop:

2022-01-31

spatial:

IP

messenger:

Protons

spectral_min:

spectral_max:

spectral_units:

observable:

{SW,SEP}

latest update:

2024-04-04 01:54:59

Columns specification

progr

column

units

type

description

1

time

UTC

datetime

Datetime [UTC ]

2

N

cm^-3

float

Protono Density [cm^-3]

3

VR

Km/s

float

Proton Velocity along the R direction [Km/s]

4

VT

Km/s

float

Proton Velocity along the T direction [Km/s]

5

VN

Km/s

float

Proton Velocity along the N direction [Km/s]

6

T

eV

float

Proton Temperature [eV]

7

VR_SolO

Km/s

float

Spacecraft Velocity along the R direction [Km/s]

8

VT_SolO

Km/s

float

Spacecraft Velocity along the T direction [Km/s]

9

VN_SolO

Km/s

float

Spacecraft Velocity along the N direction [Km/s]