Exposure
ID
GRAVI.2025-05-23T08:25:34.212_1
Header ID
GRAVI.2025-05-23T08:25:34.212
Date updated
2025-05-23 08:36:13 UTC+0000
Release date
2025-05-23 08:25:34 UTC+0000
UTC Start
2025-05-23 08:25:34.212
UTC End
2025-05-23 08:28:14.212
MJD Start
60818.35109042
MJD End
60818.35294227186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0055245
Ambient temperature (°C)
13.35
Seeing (arcsec)
0.44
Observation
ID
67547
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
50237
Name
HD156227
RA
259.178058
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 53.9750 53.4370 276.7000 276.9000
K0-D0 83.1140 82.5160 253.8000 253.7000
K0-J3 49.6220 49.5700 351.2260 351.7070
G2-D0 39.5240 39.4710 221.5000 221.5000
G2-J3 62.7910 62.6490 47.1540 47.1160
D0-J3 102.1970 102.0040 44.9720 44.9450
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 60818.35109042
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 156227
HIERARCH ESO INS SOBJ NAME HD156227
RA 259.178058
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 53.975
HIERARCH ESO ISS PBL12 END 53.437
HIERARCH ESO ISS PBLA12 START 276.7
HIERARCH ESO ISS PBLA12 END 276.9
HIERARCH ESO ISS PBL13 START 83.114
HIERARCH ESO ISS PBL13 END 82.516
HIERARCH ESO ISS PBLA13 START 253.8
HIERARCH ESO ISS PBLA13 END 253.7
HIERARCH ESO ISS PBL14 START 49.622
HIERARCH ESO ISS PBL14 END 49.57
HIERARCH ESO ISS PBLA14 START 351.226
HIERARCH ESO ISS PBLA14 END 351.707
HIERARCH ESO ISS PBL23 START 39.524
HIERARCH ESO ISS PBL23 END 39.471
HIERARCH ESO ISS PBLA23 START 221.5
HIERARCH ESO ISS PBLA23 END 221.5
HIERARCH ESO ISS PBL24 START 62.791
HIERARCH ESO ISS PBL24 END 62.649
HIERARCH ESO ISS PBLA24 START 47.154
HIERARCH ESO ISS PBLA24 END 47.116
HIERARCH ESO ISS PBL34 START 102.197
HIERARCH ESO ISS PBL34 END 102.004
HIERARCH ESO ISS PBLA34 START 44.972
HIERARCH ESO ISS PBLA34 END 44.945
HIERARCH ESO ISS AMBI TAU0 START 0.005065
HIERARCH ESO ISS AMBI TAU0 END 0.005984
HIERARCH ESO ISS AMBI TEMP 13.35
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.44