Exposure
ID
GRAVI.2025-08-15T03:52:29.535_1
Header ID
GRAVI.2025-08-15T03:52:29.535
Date updated
2025-08-15 04:05:54 UTC+0000
Release date
2026-08-15 04:05:54 UTC+0000
UTC Start
2025-08-15 03:52:29.535
UTC End
2025-08-15 03:54:53.535
MJD Start
60902.16145295
MJD End
60902.16311961666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.002512
Ambient temperature (°C)
10.69
Seeing (arcsec)
1.17
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 66.3840 66.1790 271.2000 271.2000
K0-D0 95.6960 95.6020 252.7000 252.6000
K0-J3 49.6380 49.5010 335.8140 336.1550
G2-D0 38.9820 39.0510 219.9000 220.0000
G2-J3 63.5880 63.6820 46.3830 46.4510
D0-J3 102.4130 102.5780 43.9030 43.9860
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 60902.16145295
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 66.384
HIERARCH ESO ISS PBL12 END 66.179
HIERARCH ESO ISS PBLA12 START 271.2
HIERARCH ESO ISS PBLA12 END 271.2
HIERARCH ESO ISS PBL13 START 95.696
HIERARCH ESO ISS PBL13 END 95.602
HIERARCH ESO ISS PBLA13 START 252.7
HIERARCH ESO ISS PBLA13 END 252.6
HIERARCH ESO ISS PBL14 START 49.638
HIERARCH ESO ISS PBL14 END 49.501
HIERARCH ESO ISS PBLA14 START 335.814
HIERARCH ESO ISS PBLA14 END 336.155
HIERARCH ESO ISS PBL23 START 38.982
HIERARCH ESO ISS PBL23 END 39.051
HIERARCH ESO ISS PBLA23 START 219.9
HIERARCH ESO ISS PBLA23 END 220.0
HIERARCH ESO ISS PBL24 START 63.588
HIERARCH ESO ISS PBL24 END 63.682
HIERARCH ESO ISS PBLA24 START 46.383
HIERARCH ESO ISS PBLA24 END 46.451
HIERARCH ESO ISS PBL34 START 102.413
HIERARCH ESO ISS PBL34 END 102.578
HIERARCH ESO ISS PBLA34 START 43.903
HIERARCH ESO ISS PBLA34 END 43.986
HIERARCH ESO ISS AMBI TAU0 START 0.002512
HIERARCH ESO ISS AMBI TAU0 END 0.002512
HIERARCH ESO ISS AMBI TEMP 10.69
HIERARCH ESO ISS AMBI FWHM START 1.17
HIERARCH ESO ISS AMBI FWHM END 1.17