Exposure
ID
GRAVI.2025-07-14T05:50:28.321_1
Header ID
GRAVI.2025-07-14T05:50:28.321
Date updated
2025-07-14 06:00:54 UTC+0000
Release date
2025-07-14 05:50:28 UTC+0000
UTC Start
2025-07-14 05:50:28.321
UTC End
2025-07-14 05:53:08.321
MJD Start
60870.24338334
MJD End
60870.245235191855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002687
Ambient temperature (°C)
12.72
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 79.3260 79.0620 147.2000 147.9000
A0-J2 100.7490 99.9780 121.9000 122.5000
A0-C1 19.8290 19.7630 147.1960 147.8650
G1-J2 44.6610 44.2600 72.4000 72.6000
G1-C1 59.4970 59.2990 327.1800 327.8490
J2-C1 83.2600 82.5530 296.0170 296.6280
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 60870.24338334
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 79.326
HIERARCH ESO ISS PBL12 END 79.062
HIERARCH ESO ISS PBLA12 START 147.2
HIERARCH ESO ISS PBLA12 END 147.9
HIERARCH ESO ISS PBL13 START 100.749
HIERARCH ESO ISS PBL13 END 99.978
HIERARCH ESO ISS PBLA13 START 121.9
HIERARCH ESO ISS PBLA13 END 122.5
HIERARCH ESO ISS PBL14 START 19.829
HIERARCH ESO ISS PBL14 END 19.763
HIERARCH ESO ISS PBLA14 START 147.196
HIERARCH ESO ISS PBLA14 END 147.865
HIERARCH ESO ISS PBL23 START 44.661
HIERARCH ESO ISS PBL23 END 44.26
HIERARCH ESO ISS PBLA23 START 72.4
HIERARCH ESO ISS PBLA23 END 72.6
HIERARCH ESO ISS PBL24 START 59.497
HIERARCH ESO ISS PBL24 END 59.299
HIERARCH ESO ISS PBLA24 START 327.18
HIERARCH ESO ISS PBLA24 END 327.849
HIERARCH ESO ISS PBL34 START 83.26
HIERARCH ESO ISS PBL34 END 82.553
HIERARCH ESO ISS PBLA34 START 296.017
HIERARCH ESO ISS PBLA34 END 296.628
HIERARCH ESO ISS AMBI TAU0 START 0.002687
HIERARCH ESO ISS AMBI TAU0 END 0.002687
HIERARCH ESO ISS AMBI TEMP 12.72
HIERARCH ESO ISS AMBI FWHM START 1.31
HIERARCH ESO ISS AMBI FWHM END 1.31