Exposure
ID
GRAVI.2025-06-23T07:48:47.294_1
Header ID
GRAVI.2025-06-23T07:48:47.294
Date updated
2025-06-23 08:00:40 UTC+0000
Release date
2025-06-23 07:48:47 UTC+0000
UTC Start
2025-06-23 07:48:47.294
UTC End
2025-06-23 07:51:27.294
MJD Start
60849.32554739
MJD End
60849.327399241854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0031555000000000003
Ambient temperature (°C)
9.46
Seeing (arcsec)
0.49
Observation
ID
68176
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
50679
Name
HD167576
RA
274.239535
DEC
-27.71652
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 54.2120 53.7830 296.0000 296.6000
K0-D0 74.4450 73.7480 269.8000 270.2000
K0-J3 56.0070 56.0010 355.8750 356.3110
G2-D0 35.2100 35.0500 227.0000 227.1000
G2-J3 54.9970 54.6820 54.3390 54.4470
D0-J3 90.0290 89.5550 51.4620 51.5650
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 60849.32554739
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 167576
HIERARCH ESO INS SOBJ NAME HD167576
RA 274.239535
DEC -27.71652
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 54.212
HIERARCH ESO ISS PBL12 END 53.783
HIERARCH ESO ISS PBLA12 START 296.0
HIERARCH ESO ISS PBLA12 END 296.6
HIERARCH ESO ISS PBL13 START 74.445
HIERARCH ESO ISS PBL13 END 73.748
HIERARCH ESO ISS PBLA13 START 269.8
HIERARCH ESO ISS PBLA13 END 270.2
HIERARCH ESO ISS PBL14 START 56.007
HIERARCH ESO ISS PBL14 END 56.001
HIERARCH ESO ISS PBLA14 START 355.875
HIERARCH ESO ISS PBLA14 END 356.311
HIERARCH ESO ISS PBL23 START 35.21
HIERARCH ESO ISS PBL23 END 35.05
HIERARCH ESO ISS PBLA23 START 227.0
HIERARCH ESO ISS PBLA23 END 227.1
HIERARCH ESO ISS PBL24 START 54.997
HIERARCH ESO ISS PBL24 END 54.682
HIERARCH ESO ISS PBLA24 START 54.339
HIERARCH ESO ISS PBLA24 END 54.447
HIERARCH ESO ISS PBL34 START 90.029
HIERARCH ESO ISS PBL34 END 89.555
HIERARCH ESO ISS PBLA34 START 51.462
HIERARCH ESO ISS PBLA34 END 51.565
HIERARCH ESO ISS AMBI TAU0 START 0.003039
HIERARCH ESO ISS AMBI TAU0 END 0.003272
HIERARCH ESO ISS AMBI TEMP 9.46
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.52