Exposure
ID
GRAVI.2025-05-23T07:59:52.147_1
Header ID
GRAVI.2025-05-23T07:59:52.147
Date updated
2025-05-23 08:12:13 UTC+0000
Release date
2026-05-23 08:12:10 UTC+0000
UTC Start
2025-05-23 07:59:52.147
UTC End
2025-05-23 08:02:32.147
MJD Start
60818.33324244
MJD End
60818.335094291855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0051375
Ambient temperature (°C)
13.63
Seeing (arcsec)
0.45499999999999996
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 63.1070 62.7660 274.1000 274.2000
K0-D0 92.6040 92.2860 253.8000 253.8000
K0-J3 51.1750 51.0800 341.8950 342.3070
G2-D0 39.9740 39.9810 220.6000 220.6000
G2-J3 64.4710 64.4480 46.8590 46.9210
D0-J3 104.2960 104.2820 44.4470 44.5200
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 60818.33324244
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 63.107
HIERARCH ESO ISS PBL12 END 62.766
HIERARCH ESO ISS PBLA12 START 274.1
HIERARCH ESO ISS PBLA12 END 274.2
HIERARCH ESO ISS PBL13 START 92.604
HIERARCH ESO ISS PBL13 END 92.286
HIERARCH ESO ISS PBLA13 START 253.8
HIERARCH ESO ISS PBLA13 END 253.8
HIERARCH ESO ISS PBL14 START 51.175
HIERARCH ESO ISS PBL14 END 51.08
HIERARCH ESO ISS PBLA14 START 341.895
HIERARCH ESO ISS PBLA14 END 342.307
HIERARCH ESO ISS PBL23 START 39.974
HIERARCH ESO ISS PBL23 END 39.981
HIERARCH ESO ISS PBLA23 START 220.6
HIERARCH ESO ISS PBLA23 END 220.6
HIERARCH ESO ISS PBL24 START 64.471
HIERARCH ESO ISS PBL24 END 64.448
HIERARCH ESO ISS PBLA24 START 46.859
HIERARCH ESO ISS PBLA24 END 46.921
HIERARCH ESO ISS PBL34 START 104.296
HIERARCH ESO ISS PBL34 END 104.282
HIERARCH ESO ISS PBLA34 START 44.447
HIERARCH ESO ISS PBLA34 END 44.52
HIERARCH ESO ISS AMBI TAU0 START 0.005301
HIERARCH ESO ISS AMBI TAU0 END 0.004974
HIERARCH ESO ISS AMBI TEMP 13.63
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.49