Exposure
ID
GRAVI.2025-08-16T02:44:52.116_1
Header ID
GRAVI.2025-08-16T02:44:52.116
Date updated
2025-08-16 02:55:49 UTC+0000
Release date
2026-08-16 02:55:49 UTC+0000
UTC Start
2025-08-16 02:44:52.116
UTC End
2025-08-16 02:47:16.116
MJD Start
60903.11449208
MJD End
60903.11615874666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.002482
Ambient temperature (°C)
9.34
Seeing (arcsec)
0.855
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 68.2980 68.3250 271.5000 271.5000
K0-D0 94.2620 94.4680 252.7000 252.7000
K0-J3 52.7120 52.5830 329.4750 329.6930
G2-D0 36.8790 36.9900 216.1000 216.3000
G2-J3 60.2200 60.4150 43.5660 43.7380
D0-J3 96.9040 97.2120 40.7270 40.9160
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 60903.11449208
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 68.298
HIERARCH ESO ISS PBL12 END 68.325
HIERARCH ESO ISS PBLA12 START 271.5
HIERARCH ESO ISS PBLA12 END 271.5
HIERARCH ESO ISS PBL13 START 94.262
HIERARCH ESO ISS PBL13 END 94.468
HIERARCH ESO ISS PBLA13 START 252.7
HIERARCH ESO ISS PBLA13 END 252.7
HIERARCH ESO ISS PBL14 START 52.712
HIERARCH ESO ISS PBL14 END 52.583
HIERARCH ESO ISS PBLA14 START 329.475
HIERARCH ESO ISS PBLA14 END 329.693
HIERARCH ESO ISS PBL23 START 36.879
HIERARCH ESO ISS PBL23 END 36.99
HIERARCH ESO ISS PBLA23 START 216.1
HIERARCH ESO ISS PBLA23 END 216.3
HIERARCH ESO ISS PBL24 START 60.22
HIERARCH ESO ISS PBL24 END 60.415
HIERARCH ESO ISS PBLA24 START 43.566
HIERARCH ESO ISS PBLA24 END 43.738
HIERARCH ESO ISS PBL34 START 96.904
HIERARCH ESO ISS PBL34 END 97.212
HIERARCH ESO ISS PBLA34 START 40.727
HIERARCH ESO ISS PBLA34 END 40.916
HIERARCH ESO ISS AMBI TAU0 START 0.002124
HIERARCH ESO ISS AMBI TAU0 END 0.00284
HIERARCH ESO ISS AMBI TEMP 9.34
HIERARCH ESO ISS AMBI FWHM START 0.93
HIERARCH ESO ISS AMBI FWHM END 0.78