Exposure
ID
GRAVI.2025-05-22T06:37:17.124_1
Header ID
GRAVI.2025-05-22T06:37:17.124
Date updated
2025-05-22 06:45:55 UTC+0000
Release date
2025-05-22 06:37:17 UTC+0000
UTC Start
2025-05-22 06:37:17.124
UTC End
2025-05-22 06:39:57.124
MJD Start
60817.27589264
MJD End
60817.277744491854
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0112705
Ambient temperature (°C)
14.55
Seeing (arcsec)
0.305
Observation
ID
67520
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
50219
Name
HD157919
RA
261.83876
DEC
-29.86781
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 68.0040 67.9230 275.0000 275.4000
K0-D0 95.1900 95.0510 254.3000 254.7000
K0-J3 56.5240 56.5330 335.8790 336.2300
G2-D0 39.6170 39.5790 217.1000 217.4000
G2-J3 63.8840 63.8110 44.3390 44.6440
D0-J3 103.3070 103.1970 41.5770 41.8800
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 60817.27589264
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME d Oph
HIERARCH ESO INS SOBJ NAME HD157919
RA 261.83876
DEC -29.86781
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 68.004
HIERARCH ESO ISS PBL12 END 67.923
HIERARCH ESO ISS PBLA12 START 275.0
HIERARCH ESO ISS PBLA12 END 275.4
HIERARCH ESO ISS PBL13 START 95.19
HIERARCH ESO ISS PBL13 END 95.051
HIERARCH ESO ISS PBLA13 START 254.3
HIERARCH ESO ISS PBLA13 END 254.7
HIERARCH ESO ISS PBL14 START 56.524
HIERARCH ESO ISS PBL14 END 56.533
HIERARCH ESO ISS PBLA14 START 335.879
HIERARCH ESO ISS PBLA14 END 336.23
HIERARCH ESO ISS PBL23 START 39.617
HIERARCH ESO ISS PBL23 END 39.579
HIERARCH ESO ISS PBLA23 START 217.1
HIERARCH ESO ISS PBLA23 END 217.4
HIERARCH ESO ISS PBL24 START 63.884
HIERARCH ESO ISS PBL24 END 63.811
HIERARCH ESO ISS PBLA24 START 44.339
HIERARCH ESO ISS PBLA24 END 44.644
HIERARCH ESO ISS PBL34 START 103.307
HIERARCH ESO ISS PBL34 END 103.197
HIERARCH ESO ISS PBLA34 START 41.577
HIERARCH ESO ISS PBLA34 END 41.88
HIERARCH ESO ISS AMBI TAU0 START 0.010724
HIERARCH ESO ISS AMBI TAU0 END 0.011817
HIERARCH ESO ISS AMBI TEMP 14.55
HIERARCH ESO ISS AMBI FWHM START 0.32
HIERARCH ESO ISS AMBI FWHM END 0.29