Exposure
ID
GRAVI.2025-05-30T09:06:04.861_1
Header ID
GRAVI.2025-05-30T09:06:04.861
Date updated
2025-05-30 09:16:46 UTC+0000
Release date
2025-05-30 09:06:04 UTC+0000
UTC Start
2025-05-30 09:06:04.861
UTC End
2025-05-30 09:08:28.861
MJD Start
60825.37922293
MJD End
60825.380889596665
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.0050855
Ambient temperature (°C)
14.4
Seeing (arcsec)
0.49
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 43.6080 43.4790 150.8000 151.1000
A0-J2 128.2420 128.0350 92.3000 92.3000
A0-J6 158.3760 158.7560 30.5700 30.7740
B5-J2 111.8490 111.9070 72.9000 72.9000
B5-J6 184.2540 184.5820 18.7750 19.0450
J2-J6 149.3180 149.0180 341.4130 341.7330
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 60825.37922293
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 43.608
HIERARCH ESO ISS PBL12 END 43.479
HIERARCH ESO ISS PBLA12 START 150.8
HIERARCH ESO ISS PBLA12 END 151.1
HIERARCH ESO ISS PBL13 START 128.242
HIERARCH ESO ISS PBL13 END 128.035
HIERARCH ESO ISS PBLA13 START 92.3
HIERARCH ESO ISS PBLA13 END 92.3
HIERARCH ESO ISS PBL14 START 158.376
HIERARCH ESO ISS PBL14 END 158.756
HIERARCH ESO ISS PBLA14 START 30.57
HIERARCH ESO ISS PBLA14 END 30.774
HIERARCH ESO ISS PBL23 START 111.849
HIERARCH ESO ISS PBL23 END 111.907
HIERARCH ESO ISS PBLA23 START 72.9
HIERARCH ESO ISS PBLA23 END 72.9
HIERARCH ESO ISS PBL24 START 184.254
HIERARCH ESO ISS PBL24 END 184.582
HIERARCH ESO ISS PBLA24 START 18.775
HIERARCH ESO ISS PBLA24 END 19.045
HIERARCH ESO ISS PBL34 START 149.318
HIERARCH ESO ISS PBL34 END 149.018
HIERARCH ESO ISS PBLA34 START 341.413
HIERARCH ESO ISS PBLA34 END 341.733
HIERARCH ESO ISS AMBI TAU0 START 0.005467
HIERARCH ESO ISS AMBI TAU0 END 0.004704
HIERARCH ESO ISS AMBI TEMP 14.4
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.51