Exposure
ID
GRAVI.2025-07-14T02:11:57.710_1
Header ID
GRAVI.2025-07-14T02:11:57.710
Date updated
2025-07-14 02:25:50 UTC+0000
Release date
2026-07-14 02:25:50 UTC+0000
UTC Start
2025-07-14 02:11:57.710
UTC End
2025-07-14 02:14:37.710
MJD Start
60870.09164016
MJD End
60870.09349201185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002612
Ambient temperature (°C)
12.25
Seeing (arcsec)
0.86
Observation
ID
68750
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
51155
Name
Y_Oph
RA
268.159
DEC
-6.1436
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 90.2340 90.3100 113.2000 113.3000
A0-J2 126.0620 126.4170 91.3000 91.3000
A0-C1 22.5540 22.5740 113.2080 113.2700
G1-J2 54.1460 54.3620 52.7000 53.0000
G1-C1 67.6790 67.7370 293.1920 293.2550
J2-C1 105.4810 105.8140 266.6670 266.7610
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 60870.09164016
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME V Y Oph
HIERARCH ESO INS SOBJ NAME Y_Oph
RA 268.159
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 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 90.234
HIERARCH ESO ISS PBL12 END 90.31
HIERARCH ESO ISS PBLA12 START 113.2
HIERARCH ESO ISS PBLA12 END 113.3
HIERARCH ESO ISS PBL13 START 126.062
HIERARCH ESO ISS PBL13 END 126.417
HIERARCH ESO ISS PBLA13 START 91.3
HIERARCH ESO ISS PBLA13 END 91.3
HIERARCH ESO ISS PBL14 START 22.554
HIERARCH ESO ISS PBL14 END 22.574
HIERARCH ESO ISS PBLA14 START 113.208
HIERARCH ESO ISS PBLA14 END 113.27
HIERARCH ESO ISS PBL23 START 54.146
HIERARCH ESO ISS PBL23 END 54.362
HIERARCH ESO ISS PBLA23 START 52.7
HIERARCH ESO ISS PBLA23 END 53.0
HIERARCH ESO ISS PBL24 START 67.679
HIERARCH ESO ISS PBL24 END 67.737
HIERARCH ESO ISS PBLA24 START 293.192
HIERARCH ESO ISS PBLA24 END 293.255
HIERARCH ESO ISS PBL34 START 105.481
HIERARCH ESO ISS PBL34 END 105.814
HIERARCH ESO ISS PBLA34 START 266.667
HIERARCH ESO ISS PBLA34 END 266.761
HIERARCH ESO ISS AMBI TAU0 START 0.002612
HIERARCH ESO ISS AMBI TAU0 END 0.002612
HIERARCH ESO ISS AMBI TEMP 12.25
HIERARCH ESO ISS AMBI FWHM START 0.86
HIERARCH ESO ISS AMBI FWHM END 0.86