Exposure
ID
GRAVI.2025-08-24T01:14:46.475_1
Header ID
GRAVI.2025-08-24T01:14:46.475
Date updated
2025-08-24 01:26:01 UTC+0000
Release date
2025-08-24 01:14:46 UTC+0000
UTC Start
2025-08-24 01:14:46.475
UTC End
2025-08-24 01:18:46.475
MJD Start
60911.05192679
MJD End
60911.05470456778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0039185
Ambient temperature (°C)
6.04
Seeing (arcsec)
0.6799999999999999
Observation
ID
70092
Category
calibrator
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
52005
Name
HD176651
RA
285.304198
DEC
2.03329
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 45.5010 45.3270 147.3000 147.6000
A0-J2 128.9970 129.1210 92.7000 92.7000
A0-J6 152.4860 153.1110 26.8790 27.2990
B5-J2 109.1420 109.5700 72.8000 72.9000
B5-J6 179.8630 180.2880 14.2790 14.7630
J2-J6 154.2020 153.7210 337.1370 337.5270
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.282E.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60911.05192679
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 176651
HIERARCH ESO INS SOBJ NAME HD176651
RA 285.304198
DEC 2.03329
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 45.501
HIERARCH ESO ISS PBL12 END 45.327
HIERARCH ESO ISS PBLA12 START 147.3
HIERARCH ESO ISS PBLA12 END 147.6
HIERARCH ESO ISS PBL13 START 128.997
HIERARCH ESO ISS PBL13 END 129.121
HIERARCH ESO ISS PBLA13 START 92.7
HIERARCH ESO ISS PBLA13 END 92.7
HIERARCH ESO ISS PBL14 START 152.486
HIERARCH ESO ISS PBL14 END 153.111
HIERARCH ESO ISS PBLA14 START 26.879
HIERARCH ESO ISS PBLA14 END 27.299
HIERARCH ESO ISS PBL23 START 109.142
HIERARCH ESO ISS PBL23 END 109.57
HIERARCH ESO ISS PBLA23 START 72.8
HIERARCH ESO ISS PBLA23 END 72.9
HIERARCH ESO ISS PBL24 START 179.863
HIERARCH ESO ISS PBL24 END 180.288
HIERARCH ESO ISS PBLA24 START 14.279
HIERARCH ESO ISS PBLA24 END 14.763
HIERARCH ESO ISS PBL34 START 154.202
HIERARCH ESO ISS PBL34 END 153.721
HIERARCH ESO ISS PBLA34 START 337.137
HIERARCH ESO ISS PBLA34 END 337.527
HIERARCH ESO ISS AMBI TAU0 START 0.003687
HIERARCH ESO ISS AMBI TAU0 END 0.00415
HIERARCH ESO ISS AMBI TEMP 6.04
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.72