Exposure
ID
GRAVI.2025-08-15T03:36:38.495_1
Header ID
GRAVI.2025-08-15T03:36:38.495
Date updated
2025-08-15 03:45:49 UTC+0000
Release date
2026-08-15 03:45:49 UTC+0000
UTC Start
2025-08-15 03:36:38.495
UTC End
2025-08-15 03:39:02.495
MJD Start
60902.15044554
MJD End
60902.15211220666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.002512
Ambient temperature (°C)
10.79
Seeing (arcsec)
1.625
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 67.3500 67.2020 271.3000 271.3000
K0-D0 95.9720 95.9540 252.8000 252.8000
K0-J3 50.4130 50.2750 333.9930 334.3050
G2-D0 38.5510 38.6330 219.2000 219.3000
G2-J3 62.9670 63.0880 45.9160 46.0100
D0-J3 101.3520 101.5560 43.3510 43.4600
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 60902.15044554
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 67.35
HIERARCH ESO ISS PBL12 END 67.202
HIERARCH ESO ISS PBLA12 START 271.3
HIERARCH ESO ISS PBLA12 END 271.3
HIERARCH ESO ISS PBL13 START 95.972
HIERARCH ESO ISS PBL13 END 95.954
HIERARCH ESO ISS PBLA13 START 252.8
HIERARCH ESO ISS PBLA13 END 252.8
HIERARCH ESO ISS PBL14 START 50.413
HIERARCH ESO ISS PBL14 END 50.275
HIERARCH ESO ISS PBLA14 START 333.993
HIERARCH ESO ISS PBLA14 END 334.305
HIERARCH ESO ISS PBL23 START 38.551
HIERARCH ESO ISS PBL23 END 38.633
HIERARCH ESO ISS PBLA23 START 219.2
HIERARCH ESO ISS PBLA23 END 219.3
HIERARCH ESO ISS PBL24 START 62.967
HIERARCH ESO ISS PBL24 END 63.088
HIERARCH ESO ISS PBLA24 START 45.916
HIERARCH ESO ISS PBLA24 END 46.01
HIERARCH ESO ISS PBL34 START 101.352
HIERARCH ESO ISS PBL34 END 101.556
HIERARCH ESO ISS PBLA34 START 43.351
HIERARCH ESO ISS PBLA34 END 43.46
HIERARCH ESO ISS AMBI TAU0 START 0.002512
HIERARCH ESO ISS AMBI TAU0 END 0.002512
HIERARCH ESO ISS AMBI TEMP 10.79
HIERARCH ESO ISS AMBI FWHM START 1.68
HIERARCH ESO ISS AMBI FWHM END 1.57