Exposure
ID
GRAVI.2025-05-23T07:53:13.130_1
Header ID
GRAVI.2025-05-23T07:53:13.130
Date updated
2025-05-23 08:06:01 UTC+0000
Release date
2026-05-23 08:06:00 UTC+0000
UTC Start
2025-05-23 07:53:13.130
UTC End
2025-05-23 07:55:53.130
MJD Start
60818.32862419
MJD End
60818.330476041854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004893
Ambient temperature (°C)
13.64
Seeing (arcsec)
0.46499999999999997
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 63.8350 63.5170 273.9000 274.0000
K0-D0 93.2660 92.9800 253.8000 253.8000
K0-J3 51.3930 51.2950 340.9920 341.3910
G2-D0 39.9480 39.9610 220.3000 220.4000
G2-J3 64.5020 64.4920 46.7090 46.7770
D0-J3 104.2980 104.3020 44.2720 44.3510
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 60818.32862419
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 63.835
HIERARCH ESO ISS PBL12 END 63.517
HIERARCH ESO ISS PBLA12 START 273.9
HIERARCH ESO ISS PBLA12 END 274.0
HIERARCH ESO ISS PBL13 START 93.266
HIERARCH ESO ISS PBL13 END 92.98
HIERARCH ESO ISS PBLA13 START 253.8
HIERARCH ESO ISS PBLA13 END 253.8
HIERARCH ESO ISS PBL14 START 51.393
HIERARCH ESO ISS PBL14 END 51.295
HIERARCH ESO ISS PBLA14 START 340.992
HIERARCH ESO ISS PBLA14 END 341.391
HIERARCH ESO ISS PBL23 START 39.948
HIERARCH ESO ISS PBL23 END 39.961
HIERARCH ESO ISS PBLA23 START 220.3
HIERARCH ESO ISS PBLA23 END 220.4
HIERARCH ESO ISS PBL24 START 64.502
HIERARCH ESO ISS PBL24 END 64.492
HIERARCH ESO ISS PBLA24 START 46.709
HIERARCH ESO ISS PBLA24 END 46.777
HIERARCH ESO ISS PBL34 START 104.298
HIERARCH ESO ISS PBL34 END 104.302
HIERARCH ESO ISS PBLA34 START 44.272
HIERARCH ESO ISS PBLA34 END 44.351
HIERARCH ESO ISS AMBI TAU0 START 0.004407
HIERARCH ESO ISS AMBI TAU0 END 0.005379
HIERARCH ESO ISS AMBI TEMP 13.64
HIERARCH ESO ISS AMBI FWHM START 0.51
HIERARCH ESO ISS AMBI FWHM END 0.42