Exposure
ID
GRAVI.2025-05-22T06:30:35.107_1
Header ID
GRAVI.2025-05-22T06:30:35.107
Date updated
2025-05-22 06:41:07 UTC+0000
Release date
2025-05-22 06:30:35 UTC+0000
UTC Start
2025-05-22 06:30:35.107
UTC End
2025-05-22 06:33:15.107
MJD Start
60817.27123966
MJD End
60817.27309151186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0116825
Ambient temperature (°C)
14.54
Seeing (arcsec)
0.31
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 68.1560 68.0940 274.1000 274.5000
K0-D0 95.4620 95.3490 253.6000 253.9000
K0-J3 56.4990 56.5110 335.1040 335.4490
G2-D0 39.6960 39.6620 216.4000 216.7000
G2-J3 64.0320 63.9690 43.6450 43.9580
D0-J3 103.5340 103.4380 40.8900 41.1990
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 60817.27123966
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 68.156
HIERARCH ESO ISS PBL12 END 68.094
HIERARCH ESO ISS PBLA12 START 274.1
HIERARCH ESO ISS PBLA12 END 274.5
HIERARCH ESO ISS PBL13 START 95.462
HIERARCH ESO ISS PBL13 END 95.349
HIERARCH ESO ISS PBLA13 START 253.6
HIERARCH ESO ISS PBLA13 END 253.9
HIERARCH ESO ISS PBL14 START 56.499
HIERARCH ESO ISS PBL14 END 56.511
HIERARCH ESO ISS PBLA14 START 335.104
HIERARCH ESO ISS PBLA14 END 335.449
HIERARCH ESO ISS PBL23 START 39.696
HIERARCH ESO ISS PBL23 END 39.662
HIERARCH ESO ISS PBLA23 START 216.4
HIERARCH ESO ISS PBLA23 END 216.7
HIERARCH ESO ISS PBL24 START 64.032
HIERARCH ESO ISS PBL24 END 63.969
HIERARCH ESO ISS PBLA24 START 43.645
HIERARCH ESO ISS PBLA24 END 43.958
HIERARCH ESO ISS PBL34 START 103.534
HIERARCH ESO ISS PBL34 END 103.438
HIERARCH ESO ISS PBLA34 START 40.89
HIERARCH ESO ISS PBLA34 END 41.199
HIERARCH ESO ISS AMBI TAU0 START 0.011599
HIERARCH ESO ISS AMBI TAU0 END 0.011766
HIERARCH ESO ISS AMBI TEMP 14.54
HIERARCH ESO ISS AMBI FWHM START 0.32
HIERARCH ESO ISS AMBI FWHM END 0.3