Exposure
ID
GRAVI.2025-06-22T04:15:19.016_1
Header ID
GRAVI.2025-06-22T04:15:19.016
Date updated
2025-06-22 04:25:51 UTC+0000
Release date
2026-06-22 04:25:51 UTC+0000
UTC Start
2025-06-22 04:15:19.016
UTC End
2025-06-22 04:17:59.016
MJD Start
60848.17730343
MJD End
60848.179155281854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0032779999999999997
Ambient temperature (°C)
12.23
Seeing (arcsec)
0.685
Observation
ID
67546
Category
science
Program ID
115.282E.001
Program Title
CIRCUMSTELLAR ENVELOPES OF NEARBY CEPHEIDS WITH GRAVITY TO REFINE THE PERIOD-LUMINOSITY RELATION IN THE JWST ERA
Program Type
Normal
PI / COI
HOCDÉ / NARDETTO / GALLENNE / KERVELLA / PIETRZYNSKI / GIEREN / MÉRAND / BRAS / BAILLEUL / LEFTLEY / AFANASIEV
Target
ID
50236
Name
Y_Oph
RA
268.161237
DEC
-6.1436
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 68.1850 68.2400 271.0000 271.1000
K0-D0 94.4790 94.6780 251.3000 251.4000
K0-J3 54.8310 54.7410 330.1150 330.3640
G2-D0 38.0850 38.1720 214.0000 214.3000
G2-J3 61.7680 61.9240 41.4090 41.6580
D0-J3 99.6560 99.9000 38.5820 38.8410
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.282E.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60848.17730343
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME V Y Oph
HIERARCH ESO INS SOBJ NAME Y_Oph
RA 268.161237
DEC -6.1436
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 68.185
HIERARCH ESO ISS PBL12 END 68.24
HIERARCH ESO ISS PBLA12 START 271.0
HIERARCH ESO ISS PBLA12 END 271.1
HIERARCH ESO ISS PBL13 START 94.479
HIERARCH ESO ISS PBL13 END 94.678
HIERARCH ESO ISS PBLA13 START 251.3
HIERARCH ESO ISS PBLA13 END 251.4
HIERARCH ESO ISS PBL14 START 54.831
HIERARCH ESO ISS PBL14 END 54.741
HIERARCH ESO ISS PBLA14 START 330.115
HIERARCH ESO ISS PBLA14 END 330.364
HIERARCH ESO ISS PBL23 START 38.085
HIERARCH ESO ISS PBL23 END 38.172
HIERARCH ESO ISS PBLA23 START 214.0
HIERARCH ESO ISS PBLA23 END 214.3
HIERARCH ESO ISS PBL24 START 61.768
HIERARCH ESO ISS PBL24 END 61.924
HIERARCH ESO ISS PBLA24 START 41.409
HIERARCH ESO ISS PBLA24 END 41.658
HIERARCH ESO ISS PBL34 START 99.656
HIERARCH ESO ISS PBL34 END 99.9
HIERARCH ESO ISS PBLA34 START 38.582
HIERARCH ESO ISS PBLA34 END 38.841
HIERARCH ESO ISS AMBI TAU0 START 0.00292
HIERARCH ESO ISS AMBI TAU0 END 0.003636
HIERARCH ESO ISS AMBI TEMP 12.23
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.67