Exposure
ID
GRAVI.2025-06-22T03:58:45.974_1
Header ID
GRAVI.2025-06-22T03:58:45.974
Date updated
2025-06-22 04:10:41 UTC+0000
Release date
2025-06-22 03:58:45 UTC+0000
UTC Start
2025-06-22 03:58:45.974
UTC End
2025-06-22 04:01:25.974
MJD Start
60848.16580989
MJD End
60848.167661741856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0027625
Ambient temperature (°C)
12.38
Seeing (arcsec)
0.685
Observation
ID
68192
Category
calibrator
Program ID
115.282E.001
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
50691
Name
HD156227
RA
259.178057
DEC
-6.24502
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 68.3400 68.3220 271.5000 271.6000
K0-D0 95.5290 95.6350 252.0000 252.1000
K0-J3 54.2500 54.1530 331.8060 332.0860
G2-D0 38.6430 38.7190 215.6000 215.9000
G2-J3 62.7400 62.8690 42.8720 43.0850
D0-J3 101.1930 101.3990 40.1200 40.3450
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.282E.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60848.16580989
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 156227
HIERARCH ESO INS SOBJ NAME HD156227
RA 259.178057
DEC -6.24502
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 68.34
HIERARCH ESO ISS PBL12 END 68.322
HIERARCH ESO ISS PBLA12 START 271.5
HIERARCH ESO ISS PBLA12 END 271.6
HIERARCH ESO ISS PBL13 START 95.529
HIERARCH ESO ISS PBL13 END 95.635
HIERARCH ESO ISS PBLA13 START 252.0
HIERARCH ESO ISS PBLA13 END 252.1
HIERARCH ESO ISS PBL14 START 54.25
HIERARCH ESO ISS PBL14 END 54.153
HIERARCH ESO ISS PBLA14 START 331.806
HIERARCH ESO ISS PBLA14 END 332.086
HIERARCH ESO ISS PBL23 START 38.643
HIERARCH ESO ISS PBL23 END 38.719
HIERARCH ESO ISS PBLA23 START 215.6
HIERARCH ESO ISS PBLA23 END 215.9
HIERARCH ESO ISS PBL24 START 62.74
HIERARCH ESO ISS PBL24 END 62.869
HIERARCH ESO ISS PBLA24 START 42.872
HIERARCH ESO ISS PBLA24 END 43.085
HIERARCH ESO ISS PBL34 START 101.193
HIERARCH ESO ISS PBL34 END 101.399
HIERARCH ESO ISS PBLA34 START 40.12
HIERARCH ESO ISS PBLA34 END 40.345
HIERARCH ESO ISS AMBI TAU0 START 0.002732
HIERARCH ESO ISS AMBI TAU0 END 0.002793
HIERARCH ESO ISS AMBI TEMP 12.38
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.68