Exposure
ID
GRAVI.2025-08-15T03:42:59.511_1
Header ID
GRAVI.2025-08-15T03:42:59.511
Date updated
2025-08-15 03:55:55 UTC+0000
Release date
2026-08-15 03:55:55 UTC+0000
UTC Start
2025-08-15 03:42:59.511
UTC End
2025-08-15 03:45:23.511
MJD Start
60902.15485545
MJD End
60902.15652211666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.002512
Ambient temperature (°C)
10.75
Seeing (arcsec)
1.38
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 67.0030 66.8320 271.3000 271.2000
K0-D0 95.9120 95.8640 252.8000 252.7000
K0-J3 50.1030 49.9650 334.7000 335.0240
G2-D0 38.7310 38.8080 219.5000 219.6000
G2-J3 63.2330 63.3440 46.1200 46.2030
D0-J3 101.8010 101.9910 43.5890 43.6870
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 60902.15485545
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 67.003
HIERARCH ESO ISS PBL12 END 66.832
HIERARCH ESO ISS PBLA12 START 271.3
HIERARCH ESO ISS PBLA12 END 271.2
HIERARCH ESO ISS PBL13 START 95.912
HIERARCH ESO ISS PBL13 END 95.864
HIERARCH ESO ISS PBLA13 START 252.8
HIERARCH ESO ISS PBLA13 END 252.7
HIERARCH ESO ISS PBL14 START 50.103
HIERARCH ESO ISS PBL14 END 49.965
HIERARCH ESO ISS PBLA14 START 334.7
HIERARCH ESO ISS PBLA14 END 335.024
HIERARCH ESO ISS PBL23 START 38.731
HIERARCH ESO ISS PBL23 END 38.808
HIERARCH ESO ISS PBLA23 START 219.5
HIERARCH ESO ISS PBLA23 END 219.6
HIERARCH ESO ISS PBL24 START 63.233
HIERARCH ESO ISS PBL24 END 63.344
HIERARCH ESO ISS PBLA24 START 46.12
HIERARCH ESO ISS PBLA24 END 46.203
HIERARCH ESO ISS PBL34 START 101.801
HIERARCH ESO ISS PBL34 END 101.991
HIERARCH ESO ISS PBLA34 START 43.589
HIERARCH ESO ISS PBLA34 END 43.687
HIERARCH ESO ISS AMBI TAU0 START 0.002512
HIERARCH ESO ISS AMBI TAU0 END 0.002512
HIERARCH ESO ISS AMBI TEMP 10.75
HIERARCH ESO ISS AMBI FWHM START 1.57
HIERARCH ESO ISS AMBI FWHM END 1.19