Exposure
ID
GRAVI.2025-08-26T03:04:33.758_1
Header ID
GRAVI.2025-08-26T03:04:33.758
Date updated
2025-08-26 03:15:54 UTC+0000
Release date
2026-08-26 03:15:54 UTC+0000
UTC Start
2025-08-26 03:04:33.758
UTC End
2025-08-26 03:08:33.758
MJD Start
60913.12816849
MJD End
60913.13094626778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.004203999999999999
Ambient temperature (°C)
13.4
Seeing (arcsec)
0.845
Observation
ID
70123
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
45310
Name
U_Aql
RA
292.337889
DEC
-7.04414
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 44.7480 44.6170 158.1000 158.7000
A0-J2 122.6660 121.8970 95.1000 95.2000
A0-J6 168.4140 168.6120 32.3980 32.6330
B5-J2 109.8910 109.4920 73.8000 73.8000
B5-J6 197.9040 198.1750 21.8190 22.1430
J2-J6 156.3170 156.0890 348.2020 348.7420
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 60913.12816849
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME V U Aql
HIERARCH ESO INS SOBJ NAME U_Aql
RA 292.337889
DEC -7.04414
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 44.748
HIERARCH ESO ISS PBL12 END 44.617
HIERARCH ESO ISS PBLA12 START 158.1
HIERARCH ESO ISS PBLA12 END 158.7
HIERARCH ESO ISS PBL13 START 122.666
HIERARCH ESO ISS PBL13 END 121.897
HIERARCH ESO ISS PBLA13 START 95.1
HIERARCH ESO ISS PBLA13 END 95.2
HIERARCH ESO ISS PBL14 START 168.414
HIERARCH ESO ISS PBL14 END 168.612
HIERARCH ESO ISS PBLA14 START 32.398
HIERARCH ESO ISS PBLA14 END 32.633
HIERARCH ESO ISS PBL23 START 109.891
HIERARCH ESO ISS PBL23 END 109.492
HIERARCH ESO ISS PBLA23 START 73.8
HIERARCH ESO ISS PBLA23 END 73.8
HIERARCH ESO ISS PBL24 START 197.904
HIERARCH ESO ISS PBL24 END 198.175
HIERARCH ESO ISS PBLA24 START 21.819
HIERARCH ESO ISS PBLA24 END 22.143
HIERARCH ESO ISS PBL34 START 156.317
HIERARCH ESO ISS PBL34 END 156.089
HIERARCH ESO ISS PBLA34 START 348.202
HIERARCH ESO ISS PBLA34 END 348.742
HIERARCH ESO ISS AMBI TAU0 START 0.004338
HIERARCH ESO ISS AMBI TAU0 END 0.00407
HIERARCH ESO ISS AMBI TEMP 13.4
HIERARCH ESO ISS AMBI FWHM START 0.88
HIERARCH ESO ISS AMBI FWHM END 0.81