Exposure
ID
GRAVI.2025-08-26T00:33:51.374_1
Header ID
GRAVI.2025-08-26T00:33:51.374
Date updated
2025-08-26 00:45:44 UTC+0000
Release date
2026-08-26 00:45:44 UTC+0000
UTC Start
2025-08-26 00:33:51.374
UTC End
2025-08-26 00:37:51.374
MJD Start
60913.02351127
MJD End
60913.02628904778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0033144999999999997
Ambient temperature (°C)
12.22
Seeing (arcsec)
0.805
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 47.0980 46.9650 145.1000 145.3000
A0-J2 125.6410 126.1810 93.0000 92.9000
A0-J6 147.6330 148.2230 22.1890 22.7170
B5-J2 103.6150 104.3500 71.9000 72.0000
B5-J6 177.6620 177.9580 9.3260 9.8660
J2-J6 159.2570 158.8190 334.0400 334.3410
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 60913.02351127
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 47.098
HIERARCH ESO ISS PBL12 END 46.965
HIERARCH ESO ISS PBLA12 START 145.1
HIERARCH ESO ISS PBLA12 END 145.3
HIERARCH ESO ISS PBL13 START 125.641
HIERARCH ESO ISS PBL13 END 126.181
HIERARCH ESO ISS PBLA13 START 93.0
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 147.633
HIERARCH ESO ISS PBL14 END 148.223
HIERARCH ESO ISS PBLA14 START 22.189
HIERARCH ESO ISS PBLA14 END 22.717
HIERARCH ESO ISS PBL23 START 103.615
HIERARCH ESO ISS PBL23 END 104.35
HIERARCH ESO ISS PBLA23 START 71.9
HIERARCH ESO ISS PBLA23 END 72.0
HIERARCH ESO ISS PBL24 START 177.662
HIERARCH ESO ISS PBL24 END 177.958
HIERARCH ESO ISS PBLA24 START 9.326
HIERARCH ESO ISS PBLA24 END 9.866
HIERARCH ESO ISS PBL34 START 159.257
HIERARCH ESO ISS PBL34 END 158.819
HIERARCH ESO ISS PBLA34 START 334.04
HIERARCH ESO ISS PBLA34 END 334.341
HIERARCH ESO ISS AMBI TAU0 START 0.002997
HIERARCH ESO ISS AMBI TAU0 END 0.003632
HIERARCH ESO ISS AMBI TEMP 12.22
HIERARCH ESO ISS AMBI FWHM START 0.81
HIERARCH ESO ISS AMBI FWHM END 0.8