Exposure
ID
GRAVI.2025-04-03T09:12:30.256_1
Header ID
GRAVI.2025-04-03T09:12:30.256
Date updated
2025-04-03 09:21:25 UTC+0000
Release date
2025-04-03 09:12:30 UTC+0000
UTC Start
2025-04-03 09:12:30.256
UTC End
2025-04-03 09:15:10.256
MJD Start
60768.38368352
MJD End
60768.38553537185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.006851
Ambient temperature (°C)
13.72
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 25.1810 25.1980 141.3000 141.6000
A0-D0 32.0030 32.0040 69.9000 70.2000
A0-J3 132.3340 132.2920 44.9560 45.2740
B2-D0 33.8610 33.8500 25.0000 25.3000
B2-J3 137.4360 137.3870 34.4650 34.7720
D0-J3 104.1830 104.1460 37.5230 37.8340
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 60768.38368352
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 25.181
HIERARCH ESO ISS PBL12 END 25.198
HIERARCH ESO ISS PBLA12 START 141.3
HIERARCH ESO ISS PBLA12 END 141.6
HIERARCH ESO ISS PBL13 START 32.003
HIERARCH ESO ISS PBL13 END 32.004
HIERARCH ESO ISS PBLA13 START 69.9
HIERARCH ESO ISS PBLA13 END 70.2
HIERARCH ESO ISS PBL14 START 132.334
HIERARCH ESO ISS PBL14 END 132.292
HIERARCH ESO ISS PBLA14 START 44.956
HIERARCH ESO ISS PBLA14 END 45.274
HIERARCH ESO ISS PBL23 START 33.861
HIERARCH ESO ISS PBL23 END 33.85
HIERARCH ESO ISS PBLA23 START 25.0
HIERARCH ESO ISS PBLA23 END 25.3
HIERARCH ESO ISS PBL24 START 137.436
HIERARCH ESO ISS PBL24 END 137.387
HIERARCH ESO ISS PBLA24 START 34.465
HIERARCH ESO ISS PBLA24 END 34.772
HIERARCH ESO ISS PBL34 START 104.183
HIERARCH ESO ISS PBL34 END 104.146
HIERARCH ESO ISS PBLA34 START 37.523
HIERARCH ESO ISS PBLA34 END 37.834
HIERARCH ESO ISS AMBI TAU0 START 0.006851
HIERARCH ESO ISS AMBI TAU0 END 0.006851
HIERARCH ESO ISS AMBI TEMP 13.72
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.45