Exposure
ID
GRAVI.2025-06-20T03:48:48.612_1
Header ID
GRAVI.2025-06-20T03:48:48.612
Date updated
2025-06-20 04:00:53 UTC+0000
Release date
2025-06-20 03:48:48 UTC+0000
UTC Start
2025-06-20 03:48:48.612
UTC End
2025-06-20 03:51:28.612
MJD Start
60846.15889597
MJD End
60846.16074782186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004553
Ambient temperature (°C)
13.16
Seeing (arcsec)
0.895
Observation
ID
68167
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
50672
Name
HD157919
RA
261.838756
DEC
-29.86782
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 67.9650 68.0410 268.2000 268.5000
K0-D0 95.7630 95.8240 247.6000 248.0000
K0-J3 56.0760 56.1170 329.9570 330.2540
G2-D0 39.9790 39.9740 211.1000 211.4000
G2-J3 64.5070 64.5040 38.1580 38.5250
D0-J3 104.2980 104.2890 35.4520 35.8130
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 60846.15889597
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME d Oph
HIERARCH ESO INS SOBJ NAME HD157919
RA 261.838756
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 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 67.965
HIERARCH ESO ISS PBL12 END 68.041
HIERARCH ESO ISS PBLA12 START 268.2
HIERARCH ESO ISS PBLA12 END 268.5
HIERARCH ESO ISS PBL13 START 95.763
HIERARCH ESO ISS PBL13 END 95.824
HIERARCH ESO ISS PBLA13 START 247.6
HIERARCH ESO ISS PBLA13 END 248.0
HIERARCH ESO ISS PBL14 START 56.076
HIERARCH ESO ISS PBL14 END 56.117
HIERARCH ESO ISS PBLA14 START 329.957
HIERARCH ESO ISS PBLA14 END 330.254
HIERARCH ESO ISS PBL23 START 39.979
HIERARCH ESO ISS PBL23 END 39.974
HIERARCH ESO ISS PBLA23 START 211.1
HIERARCH ESO ISS PBLA23 END 211.4
HIERARCH ESO ISS PBL24 START 64.507
HIERARCH ESO ISS PBL24 END 64.504
HIERARCH ESO ISS PBLA24 START 38.158
HIERARCH ESO ISS PBLA24 END 38.525
HIERARCH ESO ISS PBL34 START 104.298
HIERARCH ESO ISS PBL34 END 104.289
HIERARCH ESO ISS PBLA34 START 35.452
HIERARCH ESO ISS PBLA34 END 35.813
HIERARCH ESO ISS AMBI TAU0 START 0.004889
HIERARCH ESO ISS AMBI TAU0 END 0.004217
HIERARCH ESO ISS AMBI TEMP 13.16
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 1.02