Exposure
ID
GRAVI.2025-06-22T04:25:10.042_1
Header ID
GRAVI.2025-06-22T04:25:10.042
Date updated
2025-06-22 04:36:02 UTC+0000
Release date
2026-06-22 04:36:02 UTC+0000
UTC Start
2025-06-22 04:25:10.042
UTC End
2025-06-22 04:27:50.042
MJD Start
60848.184144
MJD End
60848.185995851854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0056395
Ambient temperature (°C)
12.17
Seeing (arcsec)
0.445
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 68.3240 68.3420 271.3000 271.4000
K0-D0 95.0860 95.2380 251.6000 251.8000
K0-J3 54.5260 54.4320 330.9440 331.2090
G2-D0 38.3690 38.4510 214.9000 215.1000
G2-J3 62.2730 62.4160 42.1960 42.4250
D0-J3 100.4480 100.6740 39.4060 39.6480
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 60848.184144
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 68.324
HIERARCH ESO ISS PBL12 END 68.342
HIERARCH ESO ISS PBLA12 START 271.3
HIERARCH ESO ISS PBLA12 END 271.4
HIERARCH ESO ISS PBL13 START 95.086
HIERARCH ESO ISS PBL13 END 95.238
HIERARCH ESO ISS PBLA13 START 251.6
HIERARCH ESO ISS PBLA13 END 251.8
HIERARCH ESO ISS PBL14 START 54.526
HIERARCH ESO ISS PBL14 END 54.432
HIERARCH ESO ISS PBLA14 START 330.944
HIERARCH ESO ISS PBLA14 END 331.209
HIERARCH ESO ISS PBL23 START 38.369
HIERARCH ESO ISS PBL23 END 38.451
HIERARCH ESO ISS PBLA23 START 214.9
HIERARCH ESO ISS PBLA23 END 215.1
HIERARCH ESO ISS PBL24 START 62.273
HIERARCH ESO ISS PBL24 END 62.416
HIERARCH ESO ISS PBLA24 START 42.196
HIERARCH ESO ISS PBLA24 END 42.425
HIERARCH ESO ISS PBL34 START 100.448
HIERARCH ESO ISS PBL34 END 100.674
HIERARCH ESO ISS PBLA34 START 39.406
HIERARCH ESO ISS PBLA34 END 39.648
HIERARCH ESO ISS AMBI TAU0 START 0.005928
HIERARCH ESO ISS AMBI TAU0 END 0.005351
HIERARCH ESO ISS AMBI TEMP 12.17
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.44