Exposure
ID
GRAVI.2025-05-23T08:09:49.172_1
Header ID
GRAVI.2025-05-23T08:09:49.172
Date updated
2025-05-23 08:21:35 UTC+0000
Release date
2026-05-23 08:21:35 UTC+0000
UTC Start
2025-05-23 08:09:49.172
UTC End
2025-05-23 08:12:29.172
MJD Start
60818.34015245
MJD End
60818.342004301856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004529999999999999
Ambient temperature (°C)
13.64
Seeing (arcsec)
0.545
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 61.9120 61.5370 274.5000 274.6000
K0-D0 91.4720 91.1070 253.9000 253.9000
K0-J3 50.8580 50.7670 343.3020 343.7240
G2-D0 39.9870 39.9850 220.8000 220.9000
G2-J3 64.3710 64.3280 47.0460 47.0880
D0-J3 104.2140 104.1710 44.6710 44.7250
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 60818.34015245
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 61.912
HIERARCH ESO ISS PBL12 END 61.537
HIERARCH ESO ISS PBLA12 START 274.5
HIERARCH ESO ISS PBLA12 END 274.6
HIERARCH ESO ISS PBL13 START 91.472
HIERARCH ESO ISS PBL13 END 91.107
HIERARCH ESO ISS PBLA13 START 253.9
HIERARCH ESO ISS PBLA13 END 253.9
HIERARCH ESO ISS PBL14 START 50.858
HIERARCH ESO ISS PBL14 END 50.767
HIERARCH ESO ISS PBLA14 START 343.302
HIERARCH ESO ISS PBLA14 END 343.724
HIERARCH ESO ISS PBL23 START 39.987
HIERARCH ESO ISS PBL23 END 39.985
HIERARCH ESO ISS PBLA23 START 220.8
HIERARCH ESO ISS PBLA23 END 220.9
HIERARCH ESO ISS PBL24 START 64.371
HIERARCH ESO ISS PBL24 END 64.328
HIERARCH ESO ISS PBLA24 START 47.046
HIERARCH ESO ISS PBLA24 END 47.088
HIERARCH ESO ISS PBL34 START 104.214
HIERARCH ESO ISS PBL34 END 104.171
HIERARCH ESO ISS PBLA34 START 44.671
HIERARCH ESO ISS PBLA34 END 44.725
HIERARCH ESO ISS AMBI TAU0 START 0.004755
HIERARCH ESO ISS AMBI TAU0 END 0.004305
HIERARCH ESO ISS AMBI TEMP 13.64
HIERARCH ESO ISS AMBI FWHM START 0.53
HIERARCH ESO ISS AMBI FWHM END 0.56