Exposure
ID
GRAVI.2025-08-24T01:46:07.555_1
Header ID
GRAVI.2025-08-24T01:46:07.555
Date updated
2025-08-24 02:00:56 UTC+0000
Release date
2026-08-24 02:00:56 UTC+0000
UTC Start
2025-08-24 01:46:07.555
UTC End
2025-08-24 01:50:07.555
MJD Start
60911.07369855
MJD End
60911.07647632778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0041085
Ambient temperature (°C)
5.8
Seeing (arcsec)
0.58
Observation
ID
70093
Category
science
Program ID
115.282E.002
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
52006
Name
TT_Aql
RA
287.056174
DEC
1.29863
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 44.6780 44.4930 149.4000 149.8000
A0-J2 129.1050 128.9740 92.5000 92.5000
A0-J6 156.7560 157.3400 28.9790 29.3360
B5-J2 111.1780 111.4000 72.8000 72.9000
B5-J6 183.4630 183.9210 16.8540 17.2960
J2-J6 152.3150 151.8570 339.6230 340.0680
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.282E.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60911.07369855
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME V TT Aql
HIERARCH ESO INS SOBJ NAME TT_Aql
RA 287.056174
DEC 1.29863
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 256.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 44.678
HIERARCH ESO ISS PBL12 END 44.493
HIERARCH ESO ISS PBLA12 START 149.4
HIERARCH ESO ISS PBLA12 END 149.8
HIERARCH ESO ISS PBL13 START 129.105
HIERARCH ESO ISS PBL13 END 128.974
HIERARCH ESO ISS PBLA13 START 92.5
HIERARCH ESO ISS PBLA13 END 92.5
HIERARCH ESO ISS PBL14 START 156.756
HIERARCH ESO ISS PBL14 END 157.34
HIERARCH ESO ISS PBLA14 START 28.979
HIERARCH ESO ISS PBLA14 END 29.336
HIERARCH ESO ISS PBL23 START 111.178
HIERARCH ESO ISS PBL23 END 111.4
HIERARCH ESO ISS PBLA23 START 72.8
HIERARCH ESO ISS PBLA23 END 72.9
HIERARCH ESO ISS PBL24 START 183.463
HIERARCH ESO ISS PBL24 END 183.921
HIERARCH ESO ISS PBLA24 START 16.854
HIERARCH ESO ISS PBLA24 END 17.296
HIERARCH ESO ISS PBL34 START 152.315
HIERARCH ESO ISS PBL34 END 151.857
HIERARCH ESO ISS PBLA34 START 339.623
HIERARCH ESO ISS PBLA34 END 340.068
HIERARCH ESO ISS AMBI TAU0 START 0.00369
HIERARCH ESO ISS AMBI TAU0 END 0.004527
HIERARCH ESO ISS AMBI TEMP 5.8
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.59