Exposure
ID
GRAVI.2025-05-30T09:15:40.886_1
Header ID
GRAVI.2025-05-30T09:15:40.886
Date updated
2025-05-30 09:28:24 UTC+0000
Release date
2025-05-30 09:15:40 UTC+0000
UTC Start
2025-05-30 09:15:40.886
UTC End
2025-05-30 09:18:04.886
MJD Start
60825.38588988
MJD End
60825.387556546666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.0053225
Ambient temperature (°C)
14.68
Seeing (arcsec)
0.53
Observation
ID
67649
Category
calibrator
Program ID
113.26QJ.001
Program Title
IMPACT OF CIRCUMSTELLAR ENVELOPE OF CEPHEIDS ON THE PERIOD-LUMINOSITY RELATION IN THE ERA OF JWST
Program Type
Normal
PI / COI
HOCDÉ / NARDETTO / LEWIS / GALLENNE / KERVELLA / MÉRAND / SMOLEC / PIETRZYNSKI / GIEREN / PILECKI / BRAS
Target
ID
50307
Name
HD195617
RA
308.084089
DEC
2.1328
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 43.1660 43.0360 151.8000 152.1000
A0-J2 127.4610 127.1890 92.2000 92.2000
A0-J6 159.6490 160.0140 31.2430 31.4310
B5-J2 111.9830 111.9890 72.8000 72.8000
B5-J6 185.3730 185.7050 19.6770 19.9350
J2-J6 148.3100 148.0200 342.5130 342.8460
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26QJ.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60825.38588988
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 195617
HIERARCH ESO INS SOBJ NAME HD195617
RA 308.084089
DEC 2.1328
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 170.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 48
HIERARCH ESO ISS PBL12 START 43.166
HIERARCH ESO ISS PBL12 END 43.036
HIERARCH ESO ISS PBLA12 START 151.8
HIERARCH ESO ISS PBLA12 END 152.1
HIERARCH ESO ISS PBL13 START 127.461
HIERARCH ESO ISS PBL13 END 127.189
HIERARCH ESO ISS PBLA13 START 92.2
HIERARCH ESO ISS PBLA13 END 92.2
HIERARCH ESO ISS PBL14 START 159.649
HIERARCH ESO ISS PBL14 END 160.014
HIERARCH ESO ISS PBLA14 START 31.243
HIERARCH ESO ISS PBLA14 END 31.431
HIERARCH ESO ISS PBL23 START 111.983
HIERARCH ESO ISS PBL23 END 111.989
HIERARCH ESO ISS PBLA23 START 72.8
HIERARCH ESO ISS PBLA23 END 72.8
HIERARCH ESO ISS PBL24 START 185.373
HIERARCH ESO ISS PBL24 END 185.705
HIERARCH ESO ISS PBLA24 START 19.677
HIERARCH ESO ISS PBLA24 END 19.935
HIERARCH ESO ISS PBL34 START 148.31
HIERARCH ESO ISS PBL34 END 148.02
HIERARCH ESO ISS PBLA34 START 342.513
HIERARCH ESO ISS PBLA34 END 342.846
HIERARCH ESO ISS AMBI TAU0 START 0.005868
HIERARCH ESO ISS AMBI TAU0 END 0.004777
HIERARCH ESO ISS AMBI TEMP 14.68
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.53