Exposure
ID
GRAVI.2025-08-24T01:24:04.499_1
Header ID
GRAVI.2025-08-24T01:24:04.499
Date updated
2025-08-24 01:36:01 UTC+0000
Release date
2025-08-24 01:24:04 UTC+0000
UTC Start
2025-08-24 01:24:04.499
UTC End
2025-08-24 01:28:04.499
MJD Start
60911.0583854
MJD End
60911.06116317778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0040785000000000005
Ambient temperature (°C)
5.86
Seeing (arcsec)
0.66
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 45.1160 44.9350 148.0000 148.3000
A0-J2 129.2090 129.2360 92.6000 92.6000
A0-J6 153.8470 154.4650 27.7810 28.1750
B5-J2 110.0330 110.3850 72.9000 72.9000
B5-J6 180.8040 181.2500 15.3270 15.7950
J2-J6 153.1520 152.6720 338.0010 338.4120
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 60911.0583854
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 45.116
HIERARCH ESO ISS PBL12 END 44.935
HIERARCH ESO ISS PBLA12 START 148.0
HIERARCH ESO ISS PBLA12 END 148.3
HIERARCH ESO ISS PBL13 START 129.209
HIERARCH ESO ISS PBL13 END 129.236
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 153.847
HIERARCH ESO ISS PBL14 END 154.465
HIERARCH ESO ISS PBLA14 START 27.781
HIERARCH ESO ISS PBLA14 END 28.175
HIERARCH ESO ISS PBL23 START 110.033
HIERARCH ESO ISS PBL23 END 110.385
HIERARCH ESO ISS PBLA23 START 72.9
HIERARCH ESO ISS PBLA23 END 72.9
HIERARCH ESO ISS PBL24 START 180.804
HIERARCH ESO ISS PBL24 END 181.25
HIERARCH ESO ISS PBLA24 START 15.327
HIERARCH ESO ISS PBLA24 END 15.795
HIERARCH ESO ISS PBL34 START 153.152
HIERARCH ESO ISS PBL34 END 152.672
HIERARCH ESO ISS PBLA34 START 338.001
HIERARCH ESO ISS PBLA34 END 338.412
HIERARCH ESO ISS AMBI TAU0 START 0.004033
HIERARCH ESO ISS AMBI TAU0 END 0.004124
HIERARCH ESO ISS AMBI TEMP 5.86
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.68