Exposure
ID
GRAVI.2025-08-24T01:36:52.531_1
Header ID
GRAVI.2025-08-24T01:36:52.531
Date updated
2025-08-24 01:50:55 UTC+0000
Release date
2026-08-24 01:50:55 UTC+0000
UTC Start
2025-08-24 01:36:52.531
UTC End
2025-08-24 01:40:52.531
MJD Start
60911.06727466
MJD End
60911.07005243778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.00367
Ambient temperature (°C)
5.83
Seeing (arcsec)
0.685
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 45.0710 44.8920 148.6000 149.0000
A0-J2 129.2340 129.2010 92.6000 92.5000
A0-J6 155.4640 156.0590 28.1630 28.5430
B5-J2 110.5730 110.8710 72.8000 72.8000
B5-J6 182.4870 182.9290 15.8680 16.3240
J2-J6 153.3230 152.8600 338.6850 339.1090
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 60911.06727466
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 45.071
HIERARCH ESO ISS PBL12 END 44.892
HIERARCH ESO ISS PBLA12 START 148.6
HIERARCH ESO ISS PBLA12 END 149.0
HIERARCH ESO ISS PBL13 START 129.234
HIERARCH ESO ISS PBL13 END 129.201
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.5
HIERARCH ESO ISS PBL14 START 155.464
HIERARCH ESO ISS PBL14 END 156.059
HIERARCH ESO ISS PBLA14 START 28.163
HIERARCH ESO ISS PBLA14 END 28.543
HIERARCH ESO ISS PBL23 START 110.573
HIERARCH ESO ISS PBL23 END 110.871
HIERARCH ESO ISS PBLA23 START 72.8
HIERARCH ESO ISS PBLA23 END 72.8
HIERARCH ESO ISS PBL24 START 182.487
HIERARCH ESO ISS PBL24 END 182.929
HIERARCH ESO ISS PBLA24 START 15.868
HIERARCH ESO ISS PBLA24 END 16.324
HIERARCH ESO ISS PBL34 START 153.323
HIERARCH ESO ISS PBL34 END 152.86
HIERARCH ESO ISS PBLA34 START 338.685
HIERARCH ESO ISS PBLA34 END 339.109
HIERARCH ESO ISS AMBI TAU0 START 0.003392
HIERARCH ESO ISS AMBI TAU0 END 0.003948
HIERARCH ESO ISS AMBI TEMP 5.83
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.67