Exposure
ID
GRAVI.2025-05-30T08:59:40.845_1
Header ID
GRAVI.2025-05-30T08:59:40.845
Date updated
2025-05-30 09:11:21 UTC+0000
Release date
2025-05-30 08:59:40 UTC+0000
UTC Start
2025-05-30 08:59:40.845
UTC End
2025-05-30 09:02:04.845
MJD Start
60825.3747783
MJD End
60825.37644496666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.0073235
Ambient temperature (°C)
14.48
Seeing (arcsec)
0.44999999999999996
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 43.9020 43.7720 150.2000 150.5000
A0-J2 128.6400 128.4760 92.4000 92.3000
A0-J6 157.4980 157.8880 30.0860 30.3030
B5-J2 111.6600 111.7530 72.9000 72.9000
B5-J6 183.5140 183.8400 18.1460 18.4260
J2-J6 150.0130 149.7040 340.7010 341.0130
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 60825.3747783
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 43.902
HIERARCH ESO ISS PBL12 END 43.772
HIERARCH ESO ISS PBLA12 START 150.2
HIERARCH ESO ISS PBLA12 END 150.5
HIERARCH ESO ISS PBL13 START 128.64
HIERARCH ESO ISS PBL13 END 128.476
HIERARCH ESO ISS PBLA13 START 92.4
HIERARCH ESO ISS PBLA13 END 92.3
HIERARCH ESO ISS PBL14 START 157.498
HIERARCH ESO ISS PBL14 END 157.888
HIERARCH ESO ISS PBLA14 START 30.086
HIERARCH ESO ISS PBLA14 END 30.303
HIERARCH ESO ISS PBL23 START 111.66
HIERARCH ESO ISS PBL23 END 111.753
HIERARCH ESO ISS PBLA23 START 72.9
HIERARCH ESO ISS PBLA23 END 72.9
HIERARCH ESO ISS PBL24 START 183.514
HIERARCH ESO ISS PBL24 END 183.84
HIERARCH ESO ISS PBLA24 START 18.146
HIERARCH ESO ISS PBLA24 END 18.426
HIERARCH ESO ISS PBL34 START 150.013
HIERARCH ESO ISS PBL34 END 149.704
HIERARCH ESO ISS PBLA34 START 340.701
HIERARCH ESO ISS PBLA34 END 341.013
HIERARCH ESO ISS AMBI TAU0 START 0.007912
HIERARCH ESO ISS AMBI TAU0 END 0.006735
HIERARCH ESO ISS AMBI TEMP 14.48
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.49