Exposure
ID
GRAVI.2025-08-26T00:38:24.386_1
Header ID
GRAVI.2025-08-26T00:38:24.386
Date updated
2025-08-26 00:50:52 UTC+0000
Release date
2026-08-26 00:50:51 UTC+0000
UTC Start
2025-08-26 00:38:24.386
UTC End
2025-08-26 00:42:24.386
MJD Start
60913.02667113
MJD End
60913.02944890778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0033404999999999997
Ambient temperature (°C)
12.2
Seeing (arcsec)
0.8049999999999999
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 46.9550 46.8180 145.3000 145.5000
A0-J2 126.2200 126.7130 92.9000 92.9000
A0-J6 148.2670 148.8630 22.7560 23.2730
B5-J2 104.4030 105.1040 72.1000 72.2000
B5-J6 177.9810 178.2930 9.9060 10.4400
J2-J6 158.7860 158.3430 334.3640 334.6750
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 60913.02667113
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 46.955
HIERARCH ESO ISS PBL12 END 46.818
HIERARCH ESO ISS PBLA12 START 145.3
HIERARCH ESO ISS PBLA12 END 145.5
HIERARCH ESO ISS PBL13 START 126.22
HIERARCH ESO ISS PBL13 END 126.713
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 148.267
HIERARCH ESO ISS PBL14 END 148.863
HIERARCH ESO ISS PBLA14 START 22.756
HIERARCH ESO ISS PBLA14 END 23.273
HIERARCH ESO ISS PBL23 START 104.403
HIERARCH ESO ISS PBL23 END 105.104
HIERARCH ESO ISS PBLA23 START 72.1
HIERARCH ESO ISS PBLA23 END 72.2
HIERARCH ESO ISS PBL24 START 177.981
HIERARCH ESO ISS PBL24 END 178.293
HIERARCH ESO ISS PBLA24 START 9.906
HIERARCH ESO ISS PBLA24 END 10.44
HIERARCH ESO ISS PBL34 START 158.786
HIERARCH ESO ISS PBL34 END 158.343
HIERARCH ESO ISS PBLA34 START 334.364
HIERARCH ESO ISS PBLA34 END 334.675
HIERARCH ESO ISS AMBI TAU0 START 0.003632
HIERARCH ESO ISS AMBI TAU0 END 0.003049
HIERARCH ESO ISS AMBI TEMP 12.2
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.84