Exposure
ID
GRAVI.2025-04-03T08:36:15.165_1
Header ID
GRAVI.2025-04-03T08:36:15.165
Date updated
2025-04-03 08:46:33 UTC+0000
Release date
2026-04-03 08:46:33 UTC+0000
UTC Start
2025-04-03 08:36:15.165
UTC End
2025-04-03 08:38:55.165
MJD Start
60768.35850885
MJD End
60768.36036070185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005662
Ambient temperature (°C)
14.12
Seeing (arcsec)
0.44999999999999996
Observation
ID
66021
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
49146
Name
X_Sgr
RA
266.888808
DEC
-27.83085
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 24.7300 24.7710 136.1000 136.4000
A0-D0 31.2430 31.3120 62.6000 63.0000
A0-J3 131.2460 131.3660 37.6940 38.1100
B2-D0 33.8960 33.9020 18.2000 18.6000
B2-J3 137.0780 137.1410 27.4150 27.8140
D0-J3 103.7560 103.8160 30.3990 30.8050
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 60768.35850885
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME V X Sgr
HIERARCH ESO INS SOBJ NAME X_Sgr
RA 266.888808
DEC -27.83085
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 B2
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 24.73
HIERARCH ESO ISS PBL12 END 24.771
HIERARCH ESO ISS PBLA12 START 136.1
HIERARCH ESO ISS PBLA12 END 136.4
HIERARCH ESO ISS PBL13 START 31.243
HIERARCH ESO ISS PBL13 END 31.312
HIERARCH ESO ISS PBLA13 START 62.6
HIERARCH ESO ISS PBLA13 END 63.0
HIERARCH ESO ISS PBL14 START 131.246
HIERARCH ESO ISS PBL14 END 131.366
HIERARCH ESO ISS PBLA14 START 37.694
HIERARCH ESO ISS PBLA14 END 38.11
HIERARCH ESO ISS PBL23 START 33.896
HIERARCH ESO ISS PBL23 END 33.902
HIERARCH ESO ISS PBLA23 START 18.2
HIERARCH ESO ISS PBLA23 END 18.6
HIERARCH ESO ISS PBL24 START 137.078
HIERARCH ESO ISS PBL24 END 137.141
HIERARCH ESO ISS PBLA24 START 27.415
HIERARCH ESO ISS PBLA24 END 27.814
HIERARCH ESO ISS PBL34 START 103.756
HIERARCH ESO ISS PBL34 END 103.816
HIERARCH ESO ISS PBLA34 START 30.399
HIERARCH ESO ISS PBLA34 END 30.805
HIERARCH ESO ISS AMBI TAU0 START 0.005039
HIERARCH ESO ISS AMBI TAU0 END 0.006285
HIERARCH ESO ISS AMBI TEMP 14.12
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.42