Exposure
ID
GRAVI.2025-08-26T03:09:06.769_1
Header ID
GRAVI.2025-08-26T03:09:06.769
Date updated
2025-08-26 03:40:35 UTC+0000
Release date
2026-08-26 03:40:35 UTC+0000
UTC Start
2025-08-26 03:09:06.769
UTC End
2025-08-26 03:13:06.769
MJD Start
60913.13132834
MJD End
60913.13410611778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.004317
Ambient temperature (°C)
13.59
Seeing (arcsec)
0.875
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 44.6070 44.4780 158.7000 159.3000
A0-J2 121.8380 121.0260 95.2000 95.4000
A0-J6 168.6260 168.8070 32.6500 32.8760
B5-J2 109.4610 109.0240 73.8000 73.9000
B5-J6 198.1950 198.4600 22.1670 22.4830
J2-J6 156.0730 155.8540 348.7820 349.3270
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 60913.13132834
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 44.607
HIERARCH ESO ISS PBL12 END 44.478
HIERARCH ESO ISS PBLA12 START 158.7
HIERARCH ESO ISS PBLA12 END 159.3
HIERARCH ESO ISS PBL13 START 121.838
HIERARCH ESO ISS PBL13 END 121.026
HIERARCH ESO ISS PBLA13 START 95.2
HIERARCH ESO ISS PBLA13 END 95.4
HIERARCH ESO ISS PBL14 START 168.626
HIERARCH ESO ISS PBL14 END 168.807
HIERARCH ESO ISS PBLA14 START 32.65
HIERARCH ESO ISS PBLA14 END 32.876
HIERARCH ESO ISS PBL23 START 109.461
HIERARCH ESO ISS PBL23 END 109.024
HIERARCH ESO ISS PBLA23 START 73.8
HIERARCH ESO ISS PBLA23 END 73.9
HIERARCH ESO ISS PBL24 START 198.195
HIERARCH ESO ISS PBL24 END 198.46
HIERARCH ESO ISS PBLA24 START 22.167
HIERARCH ESO ISS PBLA24 END 22.483
HIERARCH ESO ISS PBL34 START 156.073
HIERARCH ESO ISS PBL34 END 155.854
HIERARCH ESO ISS PBLA34 START 348.782
HIERARCH ESO ISS PBLA34 END 349.327
HIERARCH ESO ISS AMBI TAU0 START 0.00407
HIERARCH ESO ISS AMBI TAU0 END 0.004564
HIERARCH ESO ISS AMBI TEMP 13.59
HIERARCH ESO ISS AMBI FWHM START 0.81
HIERARCH ESO ISS AMBI FWHM END 0.94