Exposure
ID
GRAVI.2025-04-03T09:02:33.231_1
Header ID
GRAVI.2025-04-03T09:02:33.231
Date updated
2025-04-03 09:11:26 UTC+0000
Release date
2025-04-03 09:02:33 UTC+0000
UTC Start
2025-04-03 09:02:33.231
UTC End
2025-04-03 09:05:13.231
MJD Start
60768.37677351
MJD End
60768.37862536185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.006851
Ambient temperature (°C)
13.82
Seeing (arcsec)
0.45
Observation
ID
66022
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
49147
Name
HD157919
RA
261.837481
DEC
-29.86781
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.1160 25.1370 140.3000 140.6000
A0-D0 31.9760 31.9880 68.6000 68.9000
A0-J3 132.4150 132.4000 43.7170 44.0800
B2-D0 33.8910 33.8830 23.9000 24.2000
B2-J3 137.5570 137.5280 33.2660 33.6170
D0-J3 104.2690 104.2490 36.3120 36.6670
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 60768.37677351
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME d Oph
HIERARCH ESO INS SOBJ NAME HD157919
RA 261.837481
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 A0
HIERARCH ESO ISS CONF STATION2 B2
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 25.116
HIERARCH ESO ISS PBL12 END 25.137
HIERARCH ESO ISS PBLA12 START 140.3
HIERARCH ESO ISS PBLA12 END 140.6
HIERARCH ESO ISS PBL13 START 31.976
HIERARCH ESO ISS PBL13 END 31.988
HIERARCH ESO ISS PBLA13 START 68.6
HIERARCH ESO ISS PBLA13 END 68.9
HIERARCH ESO ISS PBL14 START 132.415
HIERARCH ESO ISS PBL14 END 132.4
HIERARCH ESO ISS PBLA14 START 43.717
HIERARCH ESO ISS PBLA14 END 44.08
HIERARCH ESO ISS PBL23 START 33.891
HIERARCH ESO ISS PBL23 END 33.883
HIERARCH ESO ISS PBLA23 START 23.9
HIERARCH ESO ISS PBLA23 END 24.2
HIERARCH ESO ISS PBL24 START 137.557
HIERARCH ESO ISS PBL24 END 137.528
HIERARCH ESO ISS PBLA24 START 33.266
HIERARCH ESO ISS PBLA24 END 33.617
HIERARCH ESO ISS PBL34 START 104.269
HIERARCH ESO ISS PBL34 END 104.249
HIERARCH ESO ISS PBLA34 START 36.312
HIERARCH ESO ISS PBLA34 END 36.667
HIERARCH ESO ISS AMBI TAU0 START 0.006851
HIERARCH ESO ISS AMBI TAU0 END 0.006851
HIERARCH ESO ISS AMBI TEMP 13.82
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.45