Exposure
ID
GRAVI.2025-05-24T08:30:51.029_1
Header ID
GRAVI.2025-05-24T08:30:51.029
Date updated
2025-05-24 08:41:02 UTC+0000
Release date
2026-05-24 08:41:02 UTC+0000
UTC Start
2025-05-24 08:30:51.029
UTC End
2025-05-24 08:33:15.029
MJD Start
60819.35475728
MJD End
60819.356423946665
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.003068
Ambient temperature (°C)
12.23
Seeing (arcsec)
0.74
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 68.3160 68.2850 271.4000 271.4000
K0-D0 95.2430 95.3770 252.8000 252.8000
K0-J3 51.9810 51.8460 330.7880 331.0390
G2-D0 37.4820 37.5860 217.3000 217.4000
G2-J3 61.2550 61.4290 44.4920 44.6390
D0-J3 98.5520 98.8310 41.7450 41.9080
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 60819.35475728
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 68.316
HIERARCH ESO ISS PBL12 END 68.285
HIERARCH ESO ISS PBLA12 START 271.4
HIERARCH ESO ISS PBLA12 END 271.4
HIERARCH ESO ISS PBL13 START 95.243
HIERARCH ESO ISS PBL13 END 95.377
HIERARCH ESO ISS PBLA13 START 252.8
HIERARCH ESO ISS PBLA13 END 252.8
HIERARCH ESO ISS PBL14 START 51.981
HIERARCH ESO ISS PBL14 END 51.846
HIERARCH ESO ISS PBLA14 START 330.788
HIERARCH ESO ISS PBLA14 END 331.039
HIERARCH ESO ISS PBL23 START 37.482
HIERARCH ESO ISS PBL23 END 37.586
HIERARCH ESO ISS PBLA23 START 217.3
HIERARCH ESO ISS PBLA23 END 217.4
HIERARCH ESO ISS PBL24 START 61.255
HIERARCH ESO ISS PBL24 END 61.429
HIERARCH ESO ISS PBLA24 START 44.492
HIERARCH ESO ISS PBLA24 END 44.639
HIERARCH ESO ISS PBL34 START 98.552
HIERARCH ESO ISS PBL34 END 98.831
HIERARCH ESO ISS PBLA34 START 41.745
HIERARCH ESO ISS PBLA34 END 41.908
HIERARCH ESO ISS AMBI TAU0 START 0.003068
HIERARCH ESO ISS AMBI TAU0 END 0.003068
HIERARCH ESO ISS AMBI TEMP 12.23
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.78