Exposure
ID
GRAVI.2025-08-26T00:24:33.351_1
Header ID
GRAVI.2025-08-26T00:24:33.351
Date updated
2025-08-26 00:35:50 UTC+0000
Release date
2026-08-26 00:35:50 UTC+0000
UTC Start
2025-08-26 00:24:33.351
UTC End
2025-08-26 00:28:33.351
MJD Start
60913.01705267
MJD End
60913.01983044778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0032615
Ambient temperature (°C)
12.56
Seeing (arcsec)
0.775
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 47.3700 47.2480 144.7000 144.8000
A0-J2 124.3110 124.9460 93.1000 93.0000
A0-J6 146.3660 146.9420 20.9960 21.5490
B5-J2 101.9000 102.7040 71.7000 71.8000
B5-J6 177.0680 177.3310 8.1300 8.6800
J2-J6 160.1910 159.7670 333.4160 333.6960
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 60913.01705267
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 47.37
HIERARCH ESO ISS PBL12 END 47.248
HIERARCH ESO ISS PBLA12 START 144.7
HIERARCH ESO ISS PBLA12 END 144.8
HIERARCH ESO ISS PBL13 START 124.311
HIERARCH ESO ISS PBL13 END 124.946
HIERARCH ESO ISS PBLA13 START 93.1
HIERARCH ESO ISS PBLA13 END 93.0
HIERARCH ESO ISS PBL14 START 146.366
HIERARCH ESO ISS PBL14 END 146.942
HIERARCH ESO ISS PBLA14 START 20.996
HIERARCH ESO ISS PBLA14 END 21.549
HIERARCH ESO ISS PBL23 START 101.9
HIERARCH ESO ISS PBL23 END 102.704
HIERARCH ESO ISS PBLA23 START 71.7
HIERARCH ESO ISS PBLA23 END 71.8
HIERARCH ESO ISS PBL24 START 177.068
HIERARCH ESO ISS PBL24 END 177.331
HIERARCH ESO ISS PBLA24 START 8.13
HIERARCH ESO ISS PBLA24 END 8.68
HIERARCH ESO ISS PBL34 START 160.191
HIERARCH ESO ISS PBL34 END 159.767
HIERARCH ESO ISS PBLA34 START 333.416
HIERARCH ESO ISS PBLA34 END 333.696
HIERARCH ESO ISS AMBI TAU0 START 0.003171
HIERARCH ESO ISS AMBI TAU0 END 0.003352
HIERARCH ESO ISS AMBI TEMP 12.56
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.78