Exposure
ID
GRAVI.2025-05-23T08:28:49.221_1
Header ID
GRAVI.2025-05-23T08:28:49.221
Date updated
2025-05-23 08:41:21 UTC+0000
Release date
2025-05-23 08:28:49 UTC+0000
UTC Start
2025-05-23 08:28:49.221
UTC End
2025-05-23 08:31:29.221
MJD Start
60818.35334746
MJD End
60818.35519931185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005984
Ambient temperature (°C)
13.36
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 53.3850 52.8370 276.9000 277.1000
K0-D0 82.4580 81.8480 253.7000 253.7000
K0-J3 49.5660 49.5170 351.7520 352.2350
G2-D0 39.4660 39.4100 221.5000 221.5000
G2-J3 62.6350 62.4880 47.1110 47.0670
D0-J3 101.9850 101.7830 44.9410 44.9090
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 60818.35334746
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 53.385
HIERARCH ESO ISS PBL12 END 52.837
HIERARCH ESO ISS PBLA12 START 276.9
HIERARCH ESO ISS PBLA12 END 277.1
HIERARCH ESO ISS PBL13 START 82.458
HIERARCH ESO ISS PBL13 END 81.848
HIERARCH ESO ISS PBLA13 START 253.7
HIERARCH ESO ISS PBLA13 END 253.7
HIERARCH ESO ISS PBL14 START 49.566
HIERARCH ESO ISS PBL14 END 49.517
HIERARCH ESO ISS PBLA14 START 351.752
HIERARCH ESO ISS PBLA14 END 352.235
HIERARCH ESO ISS PBL23 START 39.466
HIERARCH ESO ISS PBL23 END 39.41
HIERARCH ESO ISS PBLA23 START 221.5
HIERARCH ESO ISS PBLA23 END 221.5
HIERARCH ESO ISS PBL24 START 62.635
HIERARCH ESO ISS PBL24 END 62.488
HIERARCH ESO ISS PBLA24 START 47.111
HIERARCH ESO ISS PBLA24 END 47.067
HIERARCH ESO ISS PBL34 START 101.985
HIERARCH ESO ISS PBL34 END 101.783
HIERARCH ESO ISS PBLA34 START 44.941
HIERARCH ESO ISS PBLA34 END 44.909
HIERARCH ESO ISS AMBI TAU0 START 0.005984
HIERARCH ESO ISS AMBI TAU0 END 0.005984
HIERARCH ESO ISS AMBI TEMP 13.36
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.44