Exposure
ID
GRAVI.2025-07-24T05:03:01.592_1
Header ID
GRAVI.2025-07-24T05:03:01.592
Date updated
2025-07-24 05:10:56 UTC+0000
Release date
2025-07-24 05:03:01 UTC+0000
UTC Start
2025-07-24 05:03:01.592
UTC End
2025-07-24 05:05:41.592
MJD Start
60880.21043509
MJD End
60880.21228694185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004498
Ambient temperature (°C)
12.73
Seeing (arcsec)
0.37
Observation
ID
68947
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
51299
Name
HD157919
RA
261.836189
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 80.0610 79.7920 145.4000 146.0000
A0-J2 102.8550 102.0910 120.1000 120.8000
A0-C1 20.0130 19.9460 145.3900 146.0430
G1-J2 45.7400 45.3520 71.9000 72.1000
G1-C1 60.0480 59.8460 325.3720 326.0250
J2-C1 85.1840 84.4880 294.3850 294.9710
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 60880.21043509
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME d Oph
HIERARCH ESO INS SOBJ NAME HD157919
RA 261.836189
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 80.061
HIERARCH ESO ISS PBL12 END 79.792
HIERARCH ESO ISS PBLA12 START 145.4
HIERARCH ESO ISS PBLA12 END 146.0
HIERARCH ESO ISS PBL13 START 102.855
HIERARCH ESO ISS PBL13 END 102.091
HIERARCH ESO ISS PBLA13 START 120.1
HIERARCH ESO ISS PBLA13 END 120.8
HIERARCH ESO ISS PBL14 START 20.013
HIERARCH ESO ISS PBL14 END 19.946
HIERARCH ESO ISS PBLA14 START 145.39
HIERARCH ESO ISS PBLA14 END 146.043
HIERARCH ESO ISS PBL23 START 45.74
HIERARCH ESO ISS PBL23 END 45.352
HIERARCH ESO ISS PBLA23 START 71.9
HIERARCH ESO ISS PBLA23 END 72.1
HIERARCH ESO ISS PBL24 START 60.048
HIERARCH ESO ISS PBL24 END 59.846
HIERARCH ESO ISS PBLA24 START 325.372
HIERARCH ESO ISS PBLA24 END 326.025
HIERARCH ESO ISS PBL34 START 85.184
HIERARCH ESO ISS PBL34 END 84.488
HIERARCH ESO ISS PBLA34 START 294.385
HIERARCH ESO ISS PBLA34 END 294.971
HIERARCH ESO ISS AMBI TAU0 START 0.00424
HIERARCH ESO ISS AMBI TAU0 END 0.004756
HIERARCH ESO ISS AMBI TEMP 12.73
HIERARCH ESO ISS AMBI FWHM START 0.39
HIERARCH ESO ISS AMBI FWHM END 0.35