Exposure
ID
GRAVI.2025-07-14T06:20:19.397_1
Header ID
GRAVI.2025-07-14T06:20:19.397
Date updated
2025-07-14 06:30:43 UTC+0000
Release date
2026-07-14 06:30:43 UTC+0000
UTC Start
2025-07-14 06:20:19.397
UTC End
2025-07-14 06:22:59.397
MJD Start
60870.26411339
MJD End
60870.26596524186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002687
Ambient temperature (°C)
12.45
Seeing (arcsec)
1.31
Observation
ID
68757
Category
science
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
51160
Name
W_Sgr
RA
271.25258
DEC
-29.58012
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 79.8300 79.5590 145.4000 146.0000
A0-J2 102.5260 101.7600 120.0000 120.6000
A0-C1 19.9550 19.8870 145.3910 146.0430
G1-J2 45.7430 45.3570 71.7000 71.9000
G1-C1 59.8750 59.6720 325.3750 326.0260
J2-C1 84.9270 84.2290 294.2450 294.8260
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.282E.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60870.26411339
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME gam01 Sgr
HIERARCH ESO INS SOBJ NAME W_Sgr
RA 271.25258
DEC -29.58012
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 79.83
HIERARCH ESO ISS PBL12 END 79.559
HIERARCH ESO ISS PBLA12 START 145.4
HIERARCH ESO ISS PBLA12 END 146.0
HIERARCH ESO ISS PBL13 START 102.526
HIERARCH ESO ISS PBL13 END 101.76
HIERARCH ESO ISS PBLA13 START 120.0
HIERARCH ESO ISS PBLA13 END 120.6
HIERARCH ESO ISS PBL14 START 19.955
HIERARCH ESO ISS PBL14 END 19.887
HIERARCH ESO ISS PBLA14 START 145.391
HIERARCH ESO ISS PBLA14 END 146.043
HIERARCH ESO ISS PBL23 START 45.743
HIERARCH ESO ISS PBL23 END 45.357
HIERARCH ESO ISS PBLA23 START 71.7
HIERARCH ESO ISS PBLA23 END 71.9
HIERARCH ESO ISS PBL24 START 59.875
HIERARCH ESO ISS PBL24 END 59.672
HIERARCH ESO ISS PBLA24 START 325.375
HIERARCH ESO ISS PBLA24 END 326.026
HIERARCH ESO ISS PBL34 START 84.927
HIERARCH ESO ISS PBL34 END 84.229
HIERARCH ESO ISS PBLA34 START 294.245
HIERARCH ESO ISS PBLA34 END 294.826
HIERARCH ESO ISS AMBI TAU0 START 0.002687
HIERARCH ESO ISS AMBI TAU0 END 0.002687
HIERARCH ESO ISS AMBI TEMP 12.45
HIERARCH ESO ISS AMBI FWHM START 1.31
HIERARCH ESO ISS AMBI FWHM END 1.31