Exposure
ID
GRAVI.2025-05-24T08:21:21.005_1
Header ID
GRAVI.2025-05-24T08:21:21.005
Date updated
2025-05-24 08:31:22 UTC+0000
Release date
2026-05-24 08:31:21 UTC+0000
UTC Start
2025-05-24 08:21:21.005
UTC End
2025-05-24 08:23:45.005
MJD Start
60819.34815978
MJD End
60819.34982644666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.003068
Ambient temperature (°C)
12.26
Seeing (arcsec)
0.7
Observation
ID
67532
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
50226
Name
eta_Aql
RA
298.118251
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 68.3440 68.3480 271.5000 271.4000
K0-D0 94.6990 94.8770 252.8000 252.8000
K0-J3 52.4270 52.2950 329.9750 330.2160
G2-D0 37.1230 37.2320 216.6000 216.8000
G2-J3 60.6450 60.8320 43.9500 44.1220
D0-J3 97.5770 97.8750 41.1480 41.3360
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 60819.34815978
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME eta Aql
HIERARCH ESO INS SOBJ NAME eta_Aql
RA 298.118251
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 68.344
HIERARCH ESO ISS PBL12 END 68.348
HIERARCH ESO ISS PBLA12 START 271.5
HIERARCH ESO ISS PBLA12 END 271.4
HIERARCH ESO ISS PBL13 START 94.699
HIERARCH ESO ISS PBL13 END 94.877
HIERARCH ESO ISS PBLA13 START 252.8
HIERARCH ESO ISS PBLA13 END 252.8
HIERARCH ESO ISS PBL14 START 52.427
HIERARCH ESO ISS PBL14 END 52.295
HIERARCH ESO ISS PBLA14 START 329.975
HIERARCH ESO ISS PBLA14 END 330.216
HIERARCH ESO ISS PBL23 START 37.123
HIERARCH ESO ISS PBL23 END 37.232
HIERARCH ESO ISS PBLA23 START 216.6
HIERARCH ESO ISS PBLA23 END 216.8
HIERARCH ESO ISS PBL24 START 60.645
HIERARCH ESO ISS PBL24 END 60.832
HIERARCH ESO ISS PBLA24 START 43.95
HIERARCH ESO ISS PBLA24 END 44.122
HIERARCH ESO ISS PBL34 START 97.577
HIERARCH ESO ISS PBL34 END 97.875
HIERARCH ESO ISS PBLA34 START 41.148
HIERARCH ESO ISS PBLA34 END 41.336
HIERARCH ESO ISS AMBI TAU0 START 0.003068
HIERARCH ESO ISS AMBI TAU0 END 0.003068
HIERARCH ESO ISS AMBI TEMP 12.26
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.7