Exposure
ID
GRAVI.2025-08-15T03:55:56.544_1
Header ID
GRAVI.2025-08-15T03:55:56.544
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 03:55:56.544
UTC End
2025-08-15 03:58:20.544
MJD Start
60902.16384889
MJD End
60902.16551555666
Exposure time (s)
144.0
Validation level
1
Tau 0: Coherence time (s)
0.002512
Ambient temperature (°C)
10.64
Seeing (arcsec)
1.22
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 66.1340 65.9160 271.2000 271.2000
K0-D0 95.5810 95.4720 252.6000 252.6000
K0-J3 49.4720 49.3370 336.2290 336.5760
G2-D0 39.0650 39.1320 220.0000 220.1000
G2-J3 63.7010 63.7900 46.4640 46.5270
D0-J3 102.6120 102.7680 44.0030 44.0800
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 60902.16384889
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 66.134
HIERARCH ESO ISS PBL12 END 65.916
HIERARCH ESO ISS PBLA12 START 271.2
HIERARCH ESO ISS PBLA12 END 271.2
HIERARCH ESO ISS PBL13 START 95.581
HIERARCH ESO ISS PBL13 END 95.472
HIERARCH ESO ISS PBLA13 START 252.6
HIERARCH ESO ISS PBLA13 END 252.6
HIERARCH ESO ISS PBL14 START 49.472
HIERARCH ESO ISS PBL14 END 49.337
HIERARCH ESO ISS PBLA14 START 336.229
HIERARCH ESO ISS PBLA14 END 336.576
HIERARCH ESO ISS PBL23 START 39.065
HIERARCH ESO ISS PBL23 END 39.132
HIERARCH ESO ISS PBLA23 START 220.0
HIERARCH ESO ISS PBLA23 END 220.1
HIERARCH ESO ISS PBL24 START 63.701
HIERARCH ESO ISS PBL24 END 63.79
HIERARCH ESO ISS PBLA24 START 46.464
HIERARCH ESO ISS PBLA24 END 46.527
HIERARCH ESO ISS PBL34 START 102.612
HIERARCH ESO ISS PBL34 END 102.768
HIERARCH ESO ISS PBLA34 START 44.003
HIERARCH ESO ISS PBLA34 END 44.08
HIERARCH ESO ISS AMBI TAU0 START 0.002512
HIERARCH ESO ISS AMBI TAU0 END 0.002512
HIERARCH ESO ISS AMBI TEMP 10.64
HIERARCH ESO ISS AMBI FWHM START 1.17
HIERARCH ESO ISS AMBI FWHM END 1.27