Exposure
ID
GRAVI.2025-08-16T02:54:19.139_1
Header ID
GRAVI.2025-08-16T02:54:19.139
Date updated
2025-08-16 03:05:45 UTC+0000
Release date
2026-08-16 03:05:45 UTC+0000
UTC Start
2025-08-16 02:54:19.139
UTC End
2025-08-16 02:56:43.139
MJD Start
60903.12105485
MJD End
60903.122721516665
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.002738
Ambient temperature (°C)
9.3
Seeing (arcsec)
0.79
Observation
ID
70017
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
51948
Name
eta_Aql
RA
298.11825
DEC
1.00561
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 68.3400 271.4000 271.4000
K0-D0 94.8990 95.0610 252.8000 252.8000
K0-J3 52.2770 52.1440 330.2410 330.4930
G2-D0 37.2460 37.3520 216.8000 217.0000
G2-J3 60.8550 61.0370 44.1400 44.3110
D0-J3 97.9120 98.2020 41.3560 41.5430
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 60903.12105485
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME eta Aql
HIERARCH ESO INS SOBJ NAME eta_Aql
RA 298.11825
DEC 1.00561
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 170.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 48
HIERARCH ESO ISS PBL12 START 68.347
HIERARCH ESO ISS PBL12 END 68.34
HIERARCH ESO ISS PBLA12 START 271.4
HIERARCH ESO ISS PBLA12 END 271.4
HIERARCH ESO ISS PBL13 START 94.899
HIERARCH ESO ISS PBL13 END 95.061
HIERARCH ESO ISS PBLA13 START 252.8
HIERARCH ESO ISS PBLA13 END 252.8
HIERARCH ESO ISS PBL14 START 52.277
HIERARCH ESO ISS PBL14 END 52.144
HIERARCH ESO ISS PBLA14 START 330.241
HIERARCH ESO ISS PBLA14 END 330.493
HIERARCH ESO ISS PBL23 START 37.246
HIERARCH ESO ISS PBL23 END 37.352
HIERARCH ESO ISS PBLA23 START 216.8
HIERARCH ESO ISS PBLA23 END 217.0
HIERARCH ESO ISS PBL24 START 60.855
HIERARCH ESO ISS PBL24 END 61.037
HIERARCH ESO ISS PBLA24 START 44.14
HIERARCH ESO ISS PBLA24 END 44.311
HIERARCH ESO ISS PBL34 START 97.912
HIERARCH ESO ISS PBL34 END 98.202
HIERARCH ESO ISS PBLA34 START 41.356
HIERARCH ESO ISS PBLA34 END 41.543
HIERARCH ESO ISS AMBI TAU0 START 0.002738
HIERARCH ESO ISS AMBI TAU0 END 0.002738
HIERARCH ESO ISS AMBI TEMP 9.3
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.79