Exposure
ID
GRAVI.2025-06-22T04:02:00.983_1
Header ID
GRAVI.2025-06-22T04:02:00.983
Date updated
2025-06-22 04:10:41 UTC+0000
Release date
2025-06-22 04:02:00 UTC+0000
UTC Start
2025-06-22 04:02:00.983
UTC End
2025-06-22 04:04:40.983
MJD Start
60848.16806693
MJD End
60848.16991878185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0027475
Ambient temperature (°C)
12.31
Seeing (arcsec)
0.7350000000000001
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 68.3190 68.2880 271.6000 271.7000
K0-D0 95.6450 95.7360 252.1000 252.2000
K0-J3 54.1420 54.0440 332.1100 332.3960
G2-D0 38.7270 38.8010 215.9000 216.1000
G2-J3 62.8820 63.0060 43.1010 43.3080
D0-J3 101.4210 101.6200 40.3620 40.5810
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 60848.16806693
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 68.319
HIERARCH ESO ISS PBL12 END 68.288
HIERARCH ESO ISS PBLA12 START 271.6
HIERARCH ESO ISS PBLA12 END 271.7
HIERARCH ESO ISS PBL13 START 95.645
HIERARCH ESO ISS PBL13 END 95.736
HIERARCH ESO ISS PBLA13 START 252.1
HIERARCH ESO ISS PBLA13 END 252.2
HIERARCH ESO ISS PBL14 START 54.142
HIERARCH ESO ISS PBL14 END 54.044
HIERARCH ESO ISS PBLA14 START 332.11
HIERARCH ESO ISS PBLA14 END 332.396
HIERARCH ESO ISS PBL23 START 38.727
HIERARCH ESO ISS PBL23 END 38.801
HIERARCH ESO ISS PBLA23 START 215.9
HIERARCH ESO ISS PBLA23 END 216.1
HIERARCH ESO ISS PBL24 START 62.882
HIERARCH ESO ISS PBL24 END 63.006
HIERARCH ESO ISS PBLA24 START 43.101
HIERARCH ESO ISS PBLA24 END 43.308
HIERARCH ESO ISS PBL34 START 101.421
HIERARCH ESO ISS PBL34 END 101.62
HIERARCH ESO ISS PBLA34 START 40.362
HIERARCH ESO ISS PBLA34 END 40.581
HIERARCH ESO ISS AMBI TAU0 START 0.002793
HIERARCH ESO ISS AMBI TAU0 END 0.002702
HIERARCH ESO ISS AMBI TEMP 12.31
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.79