Exposure
ID
GRAVI.2025-06-22T03:52:03.958_1
Header ID
GRAVI.2025-06-22T03:52:03.958
Date updated
2025-06-22 04:00:49 UTC+0000
Release date
2025-06-22 03:52:03 UTC+0000
UTC Start
2025-06-22 03:52:03.958
UTC End
2025-06-22 03:54:43.958
MJD Start
60848.16115692
MJD End
60848.16300877186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0034335
Ambient temperature (°C)
12.37
Seeing (arcsec)
0.49
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 68.3410 68.3480 271.4000 271.4000
K0-D0 95.2370 95.3750 251.7000 251.8000
K0-J3 54.4670 54.3720 331.2080 331.4650
G2-D0 38.4640 38.5440 215.1000 215.3000
G2-J3 62.4330 62.5710 42.3890 42.6020
D0-J3 100.7040 100.9240 39.6110 39.8360
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 60848.16115692
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 68.341
HIERARCH ESO ISS PBL12 END 68.348
HIERARCH ESO ISS PBLA12 START 271.4
HIERARCH ESO ISS PBLA12 END 271.4
HIERARCH ESO ISS PBL13 START 95.237
HIERARCH ESO ISS PBL13 END 95.375
HIERARCH ESO ISS PBLA13 START 251.7
HIERARCH ESO ISS PBLA13 END 251.8
HIERARCH ESO ISS PBL14 START 54.467
HIERARCH ESO ISS PBL14 END 54.372
HIERARCH ESO ISS PBLA14 START 331.208
HIERARCH ESO ISS PBLA14 END 331.465
HIERARCH ESO ISS PBL23 START 38.464
HIERARCH ESO ISS PBL23 END 38.544
HIERARCH ESO ISS PBLA23 START 215.1
HIERARCH ESO ISS PBLA23 END 215.3
HIERARCH ESO ISS PBL24 START 62.433
HIERARCH ESO ISS PBL24 END 62.571
HIERARCH ESO ISS PBLA24 START 42.389
HIERARCH ESO ISS PBLA24 END 42.602
HIERARCH ESO ISS PBL34 START 100.704
HIERARCH ESO ISS PBL34 END 100.924
HIERARCH ESO ISS PBLA34 START 39.611
HIERARCH ESO ISS PBLA34 END 39.836
HIERARCH ESO ISS AMBI TAU0 START 0.003284
HIERARCH ESO ISS AMBI TAU0 END 0.003583
HIERARCH ESO ISS AMBI TEMP 12.37
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.49