Exposure
ID
GRAVI.2025-08-26T02:55:12.734_1
Header ID
GRAVI.2025-08-26T02:55:12.734
Date updated
2025-08-26 03:10:59 UTC+0000
Release date
2026-08-26 03:10:59 UTC+0000
UTC Start
2025-08-26 02:55:12.734
UTC End
2025-08-26 02:59:12.734
MJD Start
60913.12167516
MJD End
60913.12445293778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.004179
Ambient temperature (°C)
13.3
Seeing (arcsec)
0.8
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 45.0370 44.9040 156.9000 157.5000
A0-J2 124.2030 123.5250 94.7000 94.9000
A0-J6 167.9290 168.1590 31.8500 32.1060
B5-J2 110.6450 110.3210 73.6000 73.7000
B5-J6 197.2930 197.5750 21.0850 21.4250
J2-J6 156.8430 156.5980 347.0410 347.5690
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 60913.12167516
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 45.037
HIERARCH ESO ISS PBL12 END 44.904
HIERARCH ESO ISS PBLA12 START 156.9
HIERARCH ESO ISS PBLA12 END 157.5
HIERARCH ESO ISS PBL13 START 124.203
HIERARCH ESO ISS PBL13 END 123.525
HIERARCH ESO ISS PBLA13 START 94.7
HIERARCH ESO ISS PBLA13 END 94.9
HIERARCH ESO ISS PBL14 START 167.929
HIERARCH ESO ISS PBL14 END 168.159
HIERARCH ESO ISS PBLA14 START 31.85
HIERARCH ESO ISS PBLA14 END 32.106
HIERARCH ESO ISS PBL23 START 110.645
HIERARCH ESO ISS PBL23 END 110.321
HIERARCH ESO ISS PBLA23 START 73.6
HIERARCH ESO ISS PBLA23 END 73.7
HIERARCH ESO ISS PBL24 START 197.293
HIERARCH ESO ISS PBL24 END 197.575
HIERARCH ESO ISS PBLA24 START 21.085
HIERARCH ESO ISS PBLA24 END 21.425
HIERARCH ESO ISS PBL34 START 156.843
HIERARCH ESO ISS PBL34 END 156.598
HIERARCH ESO ISS PBLA34 START 347.041
HIERARCH ESO ISS PBLA34 END 347.569
HIERARCH ESO ISS AMBI TAU0 START 0.004133
HIERARCH ESO ISS AMBI TAU0 END 0.004225
HIERARCH ESO ISS AMBI TEMP 13.3
HIERARCH ESO ISS AMBI FWHM START 0.74
HIERARCH ESO ISS AMBI FWHM END 0.86