Exposure
ID
GRAVI.2025-06-22T04:31:49.058_1
Header ID
GRAVI.2025-06-22T04:31:49.058
Date updated
2025-06-22 04:40:55 UTC+0000
Release date
2026-06-22 04:40:55 UTC+0000
UTC Start
2025-06-22 04:31:49.058
UTC End
2025-06-22 04:34:29.058
MJD Start
60848.18876225
MJD End
60848.190614101855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0067405
Ambient temperature (°C)
12.03
Seeing (arcsec)
0.395
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 68.3470 68.3390 271.5000 271.5000
K0-D0 95.4090 95.5290 251.9000 252.0000
K0-J3 54.3120 54.2150 331.5400 331.8040
G2-D0 38.5510 38.6290 215.4000 215.7000
G2-J3 62.5900 62.7230 42.6980 42.9040
D0-J3 100.9500 101.1630 39.9350 40.1520
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 60848.18876225
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 68.347
HIERARCH ESO ISS PBL12 END 68.339
HIERARCH ESO ISS PBLA12 START 271.5
HIERARCH ESO ISS PBLA12 END 271.5
HIERARCH ESO ISS PBL13 START 95.409
HIERARCH ESO ISS PBL13 END 95.529
HIERARCH ESO ISS PBLA13 START 251.9
HIERARCH ESO ISS PBLA13 END 252.0
HIERARCH ESO ISS PBL14 START 54.312
HIERARCH ESO ISS PBL14 END 54.215
HIERARCH ESO ISS PBLA14 START 331.54
HIERARCH ESO ISS PBLA14 END 331.804
HIERARCH ESO ISS PBL23 START 38.551
HIERARCH ESO ISS PBL23 END 38.629
HIERARCH ESO ISS PBLA23 START 215.4
HIERARCH ESO ISS PBLA23 END 215.7
HIERARCH ESO ISS PBL24 START 62.59
HIERARCH ESO ISS PBL24 END 62.723
HIERARCH ESO ISS PBLA24 START 42.698
HIERARCH ESO ISS PBLA24 END 42.904
HIERARCH ESO ISS PBL34 START 100.95
HIERARCH ESO ISS PBL34 END 101.163
HIERARCH ESO ISS PBLA34 START 39.935
HIERARCH ESO ISS PBLA34 END 40.152
HIERARCH ESO ISS AMBI TAU0 START 0.006972
HIERARCH ESO ISS AMBI TAU0 END 0.006509
HIERARCH ESO ISS AMBI TEMP 12.03
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.38