Exposure
ID
GRAVI.2025-07-14T06:00:22.346_1
Header ID
GRAVI.2025-07-14T06:00:22.346
Date updated
2025-07-14 06:10:45 UTC+0000
Release date
2025-07-14 06:00:22 UTC+0000
UTC Start
2025-07-14 06:00:22.346
UTC End
2025-07-14 06:03:02.346
MJD Start
60870.25025863
MJD End
60870.25211048186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002687
Ambient temperature (°C)
12.58
Seeing (arcsec)
1.31
Observation
ID
68756
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
51159
Name
HD157919
RA
261.83619
DEC
-29.86782
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 78.4530 78.1980 149.4000 150.1000
A0-J2 98.1550 97.3750 124.1000 124.8000
A0-C1 19.6110 19.5470 149.4590 150.1470
G1-J2 43.2960 42.8760 73.1000 73.3000
G1-C1 58.8420 58.6500 329.4430 330.1310
J2-C1 80.8770 80.1570 298.1030 298.7470
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 60870.25025863
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME d Oph
HIERARCH ESO INS SOBJ NAME HD157919
RA 261.83619
DEC -29.86782
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 78.453
HIERARCH ESO ISS PBL12 END 78.198
HIERARCH ESO ISS PBLA12 START 149.4
HIERARCH ESO ISS PBLA12 END 150.1
HIERARCH ESO ISS PBL13 START 98.155
HIERARCH ESO ISS PBL13 END 97.375
HIERARCH ESO ISS PBLA13 START 124.1
HIERARCH ESO ISS PBLA13 END 124.8
HIERARCH ESO ISS PBL14 START 19.611
HIERARCH ESO ISS PBL14 END 19.547
HIERARCH ESO ISS PBLA14 START 149.459
HIERARCH ESO ISS PBLA14 END 150.147
HIERARCH ESO ISS PBL23 START 43.296
HIERARCH ESO ISS PBL23 END 42.876
HIERARCH ESO ISS PBLA23 START 73.1
HIERARCH ESO ISS PBLA23 END 73.3
HIERARCH ESO ISS PBL24 START 58.842
HIERARCH ESO ISS PBL24 END 58.65
HIERARCH ESO ISS PBLA24 START 329.443
HIERARCH ESO ISS PBLA24 END 330.131
HIERARCH ESO ISS PBL34 START 80.877
HIERARCH ESO ISS PBL34 END 80.157
HIERARCH ESO ISS PBLA34 START 298.103
HIERARCH ESO ISS PBLA34 END 298.747
HIERARCH ESO ISS AMBI TAU0 START 0.002687
HIERARCH ESO ISS AMBI TAU0 END 0.002687
HIERARCH ESO ISS AMBI TEMP 12.58
HIERARCH ESO ISS AMBI FWHM START 1.31
HIERARCH ESO ISS AMBI FWHM END 1.31