Exposure
ID
GRAVI.2025-08-26T00:16:30.330_1
Header ID
GRAVI.2025-08-26T00:16:30.330
Date updated
2025-08-26 00:30:42 UTC+0000
Release date
2025-08-26 00:16:30 UTC+0000
UTC Start
2025-08-26 00:16:30.330
UTC End
2025-08-26 00:20:30.330
MJD Start
60913.01146215
MJD End
60913.01423992778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0037679999999999996
Ambient temperature (°C)
12.51
Seeing (arcsec)
0.74
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 47.2830 47.1560 144.5000 144.7000
A0-J2 124.1750 124.8180 93.3000 93.2000
A0-J6 145.1920 145.7810 21.0150 21.5720
B5-J2 101.5120 102.3310 72.0000 72.1000
B5-J6 175.7670 176.0340 8.0520 8.6070
J2-J6 159.7110 159.2720 333.2440 333.5200
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 60913.01146215
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 47.283
HIERARCH ESO ISS PBL12 END 47.156
HIERARCH ESO ISS PBLA12 START 144.5
HIERARCH ESO ISS PBLA12 END 144.7
HIERARCH ESO ISS PBL13 START 124.175
HIERARCH ESO ISS PBL13 END 124.818
HIERARCH ESO ISS PBLA13 START 93.3
HIERARCH ESO ISS PBLA13 END 93.2
HIERARCH ESO ISS PBL14 START 145.192
HIERARCH ESO ISS PBL14 END 145.781
HIERARCH ESO ISS PBLA14 START 21.015
HIERARCH ESO ISS PBLA14 END 21.572
HIERARCH ESO ISS PBL23 START 101.512
HIERARCH ESO ISS PBL23 END 102.331
HIERARCH ESO ISS PBLA23 START 72.0
HIERARCH ESO ISS PBLA23 END 72.1
HIERARCH ESO ISS PBL24 START 175.767
HIERARCH ESO ISS PBL24 END 176.034
HIERARCH ESO ISS PBLA24 START 8.052
HIERARCH ESO ISS PBLA24 END 8.607
HIERARCH ESO ISS PBL34 START 159.711
HIERARCH ESO ISS PBL34 END 159.272
HIERARCH ESO ISS PBLA34 START 333.244
HIERARCH ESO ISS PBLA34 END 333.52
HIERARCH ESO ISS AMBI TAU0 START 0.003878
HIERARCH ESO ISS AMBI TAU0 END 0.003658
HIERARCH ESO ISS AMBI TEMP 12.51
HIERARCH ESO ISS AMBI FWHM START 0.75
HIERARCH ESO ISS AMBI FWHM END 0.73