Exposure
ID
GRAVI.2025-07-24T04:32:10.513_1
Header ID
GRAVI.2025-07-24T04:32:10.513
Date updated
2025-07-24 04:40:51 UTC+0000
Release date
2025-07-24 04:32:10 UTC+0000
UTC Start
2025-07-24 04:32:10.513
UTC End
2025-07-24 04:34:50.513
MJD Start
60880.18901057
MJD End
60880.190862421856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003443
Ambient temperature (°C)
12.75
Seeing (arcsec)
0.44999999999999996
Observation
ID
68946
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
51298
Name
HD156227
RA
259.17582
DEC
-6.24502
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 66.9900 66.3900 129.9000 130.4000
A0-J2 97.9470 96.8710 98.9000 99.0000
A0-C1 16.7440 16.5940 129.9480 130.4630
G1-J2 53.2990 53.0390 58.4000 58.3000
G1-C1 50.2450 49.7960 309.9240 310.4390
J2-C1 84.0530 83.1620 272.9640 273.0760
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 60880.18901057
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 156227
HIERARCH ESO INS SOBJ NAME HD156227
RA 259.17582
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 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 66.99
HIERARCH ESO ISS PBL12 END 66.39
HIERARCH ESO ISS PBLA12 START 129.9
HIERARCH ESO ISS PBLA12 END 130.4
HIERARCH ESO ISS PBL13 START 97.947
HIERARCH ESO ISS PBL13 END 96.871
HIERARCH ESO ISS PBLA13 START 98.9
HIERARCH ESO ISS PBLA13 END 99.0
HIERARCH ESO ISS PBL14 START 16.744
HIERARCH ESO ISS PBL14 END 16.594
HIERARCH ESO ISS PBLA14 START 129.948
HIERARCH ESO ISS PBLA14 END 130.463
HIERARCH ESO ISS PBL23 START 53.299
HIERARCH ESO ISS PBL23 END 53.039
HIERARCH ESO ISS PBLA23 START 58.4
HIERARCH ESO ISS PBLA23 END 58.3
HIERARCH ESO ISS PBL24 START 50.245
HIERARCH ESO ISS PBL24 END 49.796
HIERARCH ESO ISS PBLA24 START 309.924
HIERARCH ESO ISS PBLA24 END 310.439
HIERARCH ESO ISS PBL34 START 84.053
HIERARCH ESO ISS PBL34 END 83.162
HIERARCH ESO ISS PBLA34 START 272.964
HIERARCH ESO ISS PBLA34 END 273.076
HIERARCH ESO ISS AMBI TAU0 START 0.00292
HIERARCH ESO ISS AMBI TAU0 END 0.003966
HIERARCH ESO ISS AMBI TEMP 12.75
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.42