Exposure
ID
GRAVI.2025-08-16T02:47:58.123_1
Header ID
GRAVI.2025-08-16T02:47:58.123
Date updated
2025-08-16 03:00:49 UTC+0000
Release date
2026-08-16 03:00:49 UTC+0000
UTC Start
2025-08-16 02:47:58.123
UTC End
2025-08-16 02:50:22.123
MJD Start
60903.11664494
MJD End
60903.11831160666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.00284
Ambient temperature (°C)
9.36
Seeing (arcsec)
0.86
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 68.3270 68.3430 271.5000 271.5000
K0-D0 94.4880 94.6790 252.7000 252.7000
K0-J3 52.5700 52.4400 329.7240 329.9470
G2-D0 37.0010 37.1110 216.3000 216.5000
G2-J3 60.4340 60.6240 43.7650 43.9300
D0-J3 97.2420 97.5440 40.9440 41.1260
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 60903.11664494
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 68.327
HIERARCH ESO ISS PBL12 END 68.343
HIERARCH ESO ISS PBLA12 START 271.5
HIERARCH ESO ISS PBLA12 END 271.5
HIERARCH ESO ISS PBL13 START 94.488
HIERARCH ESO ISS PBL13 END 94.679
HIERARCH ESO ISS PBLA13 START 252.7
HIERARCH ESO ISS PBLA13 END 252.7
HIERARCH ESO ISS PBL14 START 52.57
HIERARCH ESO ISS PBL14 END 52.44
HIERARCH ESO ISS PBLA14 START 329.724
HIERARCH ESO ISS PBLA14 END 329.947
HIERARCH ESO ISS PBL23 START 37.001
HIERARCH ESO ISS PBL23 END 37.111
HIERARCH ESO ISS PBLA23 START 216.3
HIERARCH ESO ISS PBLA23 END 216.5
HIERARCH ESO ISS PBL24 START 60.434
HIERARCH ESO ISS PBL24 END 60.624
HIERARCH ESO ISS PBLA24 START 43.765
HIERARCH ESO ISS PBLA24 END 43.93
HIERARCH ESO ISS PBL34 START 97.242
HIERARCH ESO ISS PBL34 END 97.544
HIERARCH ESO ISS PBLA34 START 40.944
HIERARCH ESO ISS PBLA34 END 41.126
HIERARCH ESO ISS AMBI TAU0 START 0.00284
HIERARCH ESO ISS AMBI TAU0 END 0.00284
HIERARCH ESO ISS AMBI TEMP 9.36
HIERARCH ESO ISS AMBI FWHM START 0.78
HIERARCH ESO ISS AMBI FWHM END 0.94