Exposure
ID
GRAVI.2025-06-22T04:08:43.000_1
Header ID
GRAVI.2025-06-22T04:08:43.000
Date updated
2025-06-22 04:20:48 UTC+0000
Release date
2025-06-22 04:08:43 UTC+0000
UTC Start
2025-06-22 04:08:43.000
UTC End
2025-06-22 04:11:23.000
MJD Start
60848.17271991
MJD End
60848.174571761854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002774
Ambient temperature (°C)
12.27
Seeing (arcsec)
0.8400000000000001
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 68.2320 68.1760 271.8000 271.9000
K0-D0 95.8300 95.8880 252.3000 252.4000
K0-J3 53.9170 53.8160 332.7520 333.0480
G2-D0 38.8920 38.9620 216.4000 216.7000
G2-J3 63.1570 63.2710 43.5500 43.7440
D0-J3 101.8640 102.0490 40.8370 41.0440
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 60848.17271991
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 68.232
HIERARCH ESO ISS PBL12 END 68.176
HIERARCH ESO ISS PBLA12 START 271.8
HIERARCH ESO ISS PBLA12 END 271.9
HIERARCH ESO ISS PBL13 START 95.83
HIERARCH ESO ISS PBL13 END 95.888
HIERARCH ESO ISS PBLA13 START 252.3
HIERARCH ESO ISS PBLA13 END 252.4
HIERARCH ESO ISS PBL14 START 53.917
HIERARCH ESO ISS PBL14 END 53.816
HIERARCH ESO ISS PBLA14 START 332.752
HIERARCH ESO ISS PBLA14 END 333.048
HIERARCH ESO ISS PBL23 START 38.892
HIERARCH ESO ISS PBL23 END 38.962
HIERARCH ESO ISS PBLA23 START 216.4
HIERARCH ESO ISS PBLA23 END 216.7
HIERARCH ESO ISS PBL24 START 63.157
HIERARCH ESO ISS PBL24 END 63.271
HIERARCH ESO ISS PBLA24 START 43.55
HIERARCH ESO ISS PBLA24 END 43.744
HIERARCH ESO ISS PBL34 START 101.864
HIERARCH ESO ISS PBL34 END 102.049
HIERARCH ESO ISS PBLA34 START 40.837
HIERARCH ESO ISS PBLA34 END 41.044
HIERARCH ESO ISS AMBI TAU0 START 0.002774
HIERARCH ESO ISS AMBI TAU0 END 0.002774
HIERARCH ESO ISS AMBI TEMP 12.27
HIERARCH ESO ISS AMBI FWHM START 0.87
HIERARCH ESO ISS AMBI FWHM END 0.81