Exposure
ID
GRAVI.2025-05-22T09:32:40.753_1
Header ID
GRAVI.2025-05-22T09:32:40.753
Date updated
2025-05-22 09:41:26 UTC+0000
Release date
2026-05-22 09:41:26 UTC+0000
UTC Start
2025-05-22 09:32:40.753
UTC End
2025-05-22 09:35:04.753
MJD Start
60817.3976939
MJD End
60817.39936056666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.006921
Ambient temperature (°C)
13.93
Seeing (arcsec)
0.47
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 65.9360 65.7100 271.2000 271.2000
K0-D0 95.4820 95.3610 252.6000 252.6000
K0-J3 49.3510 49.2160 336.5480 336.8970
G2-D0 39.1260 39.1910 220.1000 220.2000
G2-J3 63.7820 63.8660 46.5240 46.5780
D0-J3 102.7550 102.9050 44.0750 44.1450
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 60817.3976939
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 65.936
HIERARCH ESO ISS PBL12 END 65.71
HIERARCH ESO ISS PBLA12 START 271.2
HIERARCH ESO ISS PBLA12 END 271.2
HIERARCH ESO ISS PBL13 START 95.482
HIERARCH ESO ISS PBL13 END 95.361
HIERARCH ESO ISS PBLA13 START 252.6
HIERARCH ESO ISS PBLA13 END 252.6
HIERARCH ESO ISS PBL14 START 49.351
HIERARCH ESO ISS PBL14 END 49.216
HIERARCH ESO ISS PBLA14 START 336.548
HIERARCH ESO ISS PBLA14 END 336.897
HIERARCH ESO ISS PBL23 START 39.126
HIERARCH ESO ISS PBL23 END 39.191
HIERARCH ESO ISS PBLA23 START 220.1
HIERARCH ESO ISS PBLA23 END 220.2
HIERARCH ESO ISS PBL24 START 63.782
HIERARCH ESO ISS PBL24 END 63.866
HIERARCH ESO ISS PBLA24 START 46.524
HIERARCH ESO ISS PBLA24 END 46.578
HIERARCH ESO ISS PBL34 START 102.755
HIERARCH ESO ISS PBL34 END 102.905
HIERARCH ESO ISS PBLA34 START 44.075
HIERARCH ESO ISS PBLA34 END 44.145
HIERARCH ESO ISS AMBI TAU0 START 0.007049
HIERARCH ESO ISS AMBI TAU0 END 0.006793
HIERARCH ESO ISS AMBI TEMP 13.93
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.42