Exposure
ID
GRAVI.2025-06-22T04:21:55.033_1
Header ID
GRAVI.2025-06-22T04:21:55.033
Date updated
2025-06-22 04:30:56 UTC+0000
Release date
2026-06-22 04:30:56 UTC+0000
UTC Start
2025-06-22 04:21:55.033
UTC End
2025-06-22 04:24:35.033
MJD Start
60848.18188696
MJD End
60848.18373881186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0053805
Ambient temperature (°C)
12.22
Seeing (arcsec)
0.54
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 68.2930 68.3220 271.2000 271.3000
K0-D0 94.9050 95.0720 251.5000 251.6000
K0-J3 54.6280 54.5350 330.6730 330.9210
G2-D0 38.2780 38.3610 214.6000 214.9000
G2-J3 62.1120 62.2600 41.9510 42.1750
D0-J3 100.1950 100.4270 39.1490 39.3850
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 60848.18188696
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 68.293
HIERARCH ESO ISS PBL12 END 68.322
HIERARCH ESO ISS PBLA12 START 271.2
HIERARCH ESO ISS PBLA12 END 271.3
HIERARCH ESO ISS PBL13 START 94.905
HIERARCH ESO ISS PBL13 END 95.072
HIERARCH ESO ISS PBLA13 START 251.5
HIERARCH ESO ISS PBLA13 END 251.6
HIERARCH ESO ISS PBL14 START 54.628
HIERARCH ESO ISS PBL14 END 54.535
HIERARCH ESO ISS PBLA14 START 330.673
HIERARCH ESO ISS PBLA14 END 330.921
HIERARCH ESO ISS PBL23 START 38.278
HIERARCH ESO ISS PBL23 END 38.361
HIERARCH ESO ISS PBLA23 START 214.6
HIERARCH ESO ISS PBLA23 END 214.9
HIERARCH ESO ISS PBL24 START 62.112
HIERARCH ESO ISS PBL24 END 62.26
HIERARCH ESO ISS PBLA24 START 41.951
HIERARCH ESO ISS PBLA24 END 42.175
HIERARCH ESO ISS PBL34 START 100.195
HIERARCH ESO ISS PBL34 END 100.427
HIERARCH ESO ISS PBLA34 START 39.149
HIERARCH ESO ISS PBLA34 END 39.385
HIERARCH ESO ISS AMBI TAU0 START 0.004833
HIERARCH ESO ISS AMBI TAU0 END 0.005928
HIERARCH ESO ISS AMBI TEMP 12.22
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.45