Exposure
ID
GRAVI.2025-08-24T01:50:40.566_1
Header ID
GRAVI.2025-08-24T01:50:40.566
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 01:50:40.566
UTC End
2025-08-24 01:54:40.566
MJD Start
60911.0768584
MJD End
60911.07963617778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0041895
Ambient temperature (°C)
5.76
Seeing (arcsec)
0.615
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 44.4820 44.2960 149.8000 150.2000
A0-J2 128.9640 128.7850 92.5000 92.5000
A0-J6 157.3760 157.9530 29.3580 29.7030
B5-J2 111.4130 111.5980 72.9000 72.9000
B5-J6 183.9500 184.4150 17.3230 17.7560
J2-J6 151.8280 151.3740 340.0960 340.5520
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 60911.0768584
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 44.482
HIERARCH ESO ISS PBL12 END 44.296
HIERARCH ESO ISS PBLA12 START 149.8
HIERARCH ESO ISS PBLA12 END 150.2
HIERARCH ESO ISS PBL13 START 128.964
HIERARCH ESO ISS PBL13 END 128.785
HIERARCH ESO ISS PBLA13 START 92.5
HIERARCH ESO ISS PBLA13 END 92.5
HIERARCH ESO ISS PBL14 START 157.376
HIERARCH ESO ISS PBL14 END 157.953
HIERARCH ESO ISS PBLA14 START 29.358
HIERARCH ESO ISS PBLA14 END 29.703
HIERARCH ESO ISS PBL23 START 111.413
HIERARCH ESO ISS PBL23 END 111.598
HIERARCH ESO ISS PBLA23 START 72.9
HIERARCH ESO ISS PBLA23 END 72.9
HIERARCH ESO ISS PBL24 START 183.95
HIERARCH ESO ISS PBL24 END 184.415
HIERARCH ESO ISS PBLA24 START 17.323
HIERARCH ESO ISS PBLA24 END 17.756
HIERARCH ESO ISS PBL34 START 151.828
HIERARCH ESO ISS PBL34 END 151.374
HIERARCH ESO ISS PBLA34 START 340.096
HIERARCH ESO ISS PBLA34 END 340.552
HIERARCH ESO ISS AMBI TAU0 START 0.004527
HIERARCH ESO ISS AMBI TAU0 END 0.003852
HIERARCH ESO ISS AMBI TEMP 5.76
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.64