Exposure
ID
GRAVI.2025-04-03T09:19:15.273_1
Header ID
GRAVI.2025-04-03T09:19:15.273
Date updated
2025-04-03 09:31:12 UTC+0000
Release date
2025-04-03 09:19:15 UTC+0000
UTC Start
2025-04-03 09:19:15.273
UTC End
2025-04-03 09:21:55.273
MJD Start
60768.38837122
MJD End
60768.39022307185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.006851
Ambient temperature (°C)
13.73
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 25.2160 25.2300 142.0000 142.4000
A0-D0 31.9990 31.9910 70.7000 71.0000
A0-J3 132.2260 132.1640 45.7120 46.0560
B2-D0 33.8340 33.8210 25.7000 26.1000
B2-J3 137.3160 137.2530 35.1960 35.5290
D0-J3 104.0920 104.0430 38.2610 38.5980
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 60768.38837122
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 25.216
HIERARCH ESO ISS PBL12 END 25.23
HIERARCH ESO ISS PBLA12 START 142.0
HIERARCH ESO ISS PBLA12 END 142.4
HIERARCH ESO ISS PBL13 START 31.999
HIERARCH ESO ISS PBL13 END 31.991
HIERARCH ESO ISS PBLA13 START 70.7
HIERARCH ESO ISS PBLA13 END 71.0
HIERARCH ESO ISS PBL14 START 132.226
HIERARCH ESO ISS PBL14 END 132.164
HIERARCH ESO ISS PBLA14 START 45.712
HIERARCH ESO ISS PBLA14 END 46.056
HIERARCH ESO ISS PBL23 START 33.834
HIERARCH ESO ISS PBL23 END 33.821
HIERARCH ESO ISS PBLA23 START 25.7
HIERARCH ESO ISS PBLA23 END 26.1
HIERARCH ESO ISS PBL24 START 137.316
HIERARCH ESO ISS PBL24 END 137.253
HIERARCH ESO ISS PBLA24 START 35.196
HIERARCH ESO ISS PBLA24 END 35.529
HIERARCH ESO ISS PBL34 START 104.092
HIERARCH ESO ISS PBL34 END 104.043
HIERARCH ESO ISS PBLA34 START 38.261
HIERARCH ESO ISS PBLA34 END 38.598
HIERARCH ESO ISS AMBI TAU0 START 0.006851
HIERARCH ESO ISS AMBI TAU0 END 0.006851
HIERARCH ESO ISS AMBI TEMP 13.73
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.45