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Table 1

Datafield definition used for storage of lightcurve data in the FITS/VOTable file format.

Datafield Name TTYPE TUNIT Explanation

1 MJDmid mjd_mid_exp MJD center of observation exposure
2 MJDstart mjd_start MJD start of observation
3 MJDend mjd_end MJD end of observation
4 F int_flux Crab units Observed integral flux
5 ΔFstat sigma_int_flux_stat Crab units Statistical error on F
6 ΔFsys sigma_int_flux_sys Crab units Systematical error on F
7 α alpha none Differential spectral index
8 Δαstat sigma_alpha_stat none Statistical error on α
9 Δαsys sigma_alpha_sys none Systematical error on α
10 E thr e_thr TeV Energy threshold in TeV
11 E cutoff e_cut TeV Cutoff energy in TeV
12 Experiment experiment none Experiment string
13 Duration duration hours Duration of observation
14 Reference reference none Reference string (pref. ADS format)
15 Flux-flag fflag none flux-measurement: “ = ”, upper limit: “ < ”
16 additional entry 1 add_entry1 e.g., special parametrizations
17 additional entry 2 add_entry2
... ... ...

Notes.

The used datafield definition is referred to as simple lightcurve format (SLF) in the text. TTYPE and TUNIT are the name and units used within the FITS file.

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