Exposure
ID
GRAVI.2025-08-14T02:32:06.490_1
Header ID
GRAVI.2025-08-14T02:32:06.490
Date updated
2025-08-14 02:40:49 UTC+0000
Release date
2025-08-14 02:32:06 UTC+0000
UTC Start
2025-08-14 02:32:06.490
UTC End
2025-08-14 02:34:46.490
MJD Start
60901.10563067
MJD End
60901.10748252185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0051145
Ambient temperature (°C)
14.3
Seeing (arcsec)
0.995
Observation
ID
69982
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
51924
Name
HD156227
RA
259.176937
DEC
-6.24502
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 116.2740 115.8280 243.3000 243.3000
K0-D0 88.0080 87.5270 254.0000 253.9000
K0-J3 50.2160 50.1410 346.9420 347.3990
B2-D0 33.9330 33.9340 34.7000 34.7000
B2-J3 137.0980 136.9880 42.4520 42.4830
D0-J3 103.5800 103.4640 44.9970 45.0140
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 60901.10563067
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 156227
HIERARCH ESO INS SOBJ NAME HD156227
RA 259.176937
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 B2
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 116.274
HIERARCH ESO ISS PBL12 END 115.828
HIERARCH ESO ISS PBLA12 START 243.3
HIERARCH ESO ISS PBLA12 END 243.3
HIERARCH ESO ISS PBL13 START 88.008
HIERARCH ESO ISS PBL13 END 87.527
HIERARCH ESO ISS PBLA13 START 254.0
HIERARCH ESO ISS PBLA13 END 253.9
HIERARCH ESO ISS PBL14 START 50.216
HIERARCH ESO ISS PBL14 END 50.141
HIERARCH ESO ISS PBLA14 START 346.942
HIERARCH ESO ISS PBLA14 END 347.399
HIERARCH ESO ISS PBL23 START 33.933
HIERARCH ESO ISS PBL23 END 33.934
HIERARCH ESO ISS PBLA23 START 34.7
HIERARCH ESO ISS PBLA23 END 34.7
HIERARCH ESO ISS PBL24 START 137.098
HIERARCH ESO ISS PBL24 END 136.988
HIERARCH ESO ISS PBLA24 START 42.452
HIERARCH ESO ISS PBLA24 END 42.483
HIERARCH ESO ISS PBL34 START 103.58
HIERARCH ESO ISS PBL34 END 103.464
HIERARCH ESO ISS PBLA34 START 44.997
HIERARCH ESO ISS PBLA34 END 45.014
HIERARCH ESO ISS AMBI TAU0 START 0.004985
HIERARCH ESO ISS AMBI TAU0 END 0.005244
HIERARCH ESO ISS AMBI TEMP 14.3
HIERARCH ESO ISS AMBI FWHM START 1.03
HIERARCH ESO ISS AMBI FWHM END 0.96