Table information for 'sidc_f107_forecast.epn_core'

General

Table Description: Forecast target days and F10.7 values for each SIDC issue.

This table is available for ADQL queries and through the TAP endpoint.

Resource Description: Historical daily forecasts of the 10.7 cm solar radio flux (F10.7). Each row records the forecast target day, its effective issue time, the nominal lead time, and the predicted flux (sfu). Forecasts for the same target day from different forecast issues remain distinct.

For a list of all services and tables belonging to this table's resource, see Information on resource 'SIDC F10.7 solar radio flux forecasts'

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:sidc_f107_foreca,
  year=2026,
  title={{SIDC} F10.7 solar radio flux forecasts},
  author={Royal Observatory of Belgium},
  url={https://vo-tap.oma.be/tableinfo/sidc_f107_forecast.epn_core},
  howpublished={{VO} resource provided by the {ROB} Virtual Observatory Data Center}
}

This research has been made at the Royal Observatory of Belgium

Columns

Sorted alphabetically. [Sort by DB column index]

NameTable Head DescriptionUnitUCD
end_time End_time End time of the interval for F10.7 flux forecast, expressed as Julian Date (JD); source times assumed UTC. Nominally +24h after start_time. d time.end
f107_flux F107_flux Predicted F10.7 flux in solar flux units (1 sfu = 10**-22 W m**-2 Hz**-1). 'sfu' phot.flux.density;em.radio
forecast_date Forecast_date Target calendar day at 00:00 UTC, expressed as Julian Date (JD). d time.epoch
granule_uid Granule_uid Stable identifier based on source forecast ID and target date. N/A meta.id;meta.main
issue_time Issue_time Effective issue timestamp in JD: ursigram date_of_issue or forecast_date plus 750 minutes if absent. d time.epoch
start_time Start_time Start time of the interval for the F10.7 flux forecast, expressed as Julian Date (JD); source times assumed UTC. d time.start

Columns that are parts of indices are marked like this.

VOResource

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