Exposure
ID
GRAVI.2025-07-14T05:57:07.337_1
Header ID
GRAVI.2025-07-14T05:57:07.337
Date updated
2025-07-14 06:05:47 UTC+0000
Release date
2025-07-14 05:57:07 UTC+0000
UTC Start
2025-07-14 05:57:07.337
UTC End
2025-07-14 05:59:47.337
MJD Start
60870.24800159
MJD End
60870.249853441856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002687
Ambient temperature (°C)
12.52
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 78.7340 78.4760 148.7000 149.4000
A0-J2 99.0020 98.2250 123.3000 124.0000
A0-C1 19.6810 19.6170 148.7140 149.3970
G1-J2 43.7470 43.3330 72.9000 73.1000
G1-C1 59.0530 58.8590 328.6980 329.3810
J2-C1 81.6570 80.9410 297.4100 298.0450
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 60870.24800159
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 78.734
HIERARCH ESO ISS PBL12 END 78.476
HIERARCH ESO ISS PBLA12 START 148.7
HIERARCH ESO ISS PBLA12 END 149.4
HIERARCH ESO ISS PBL13 START 99.002
HIERARCH ESO ISS PBL13 END 98.225
HIERARCH ESO ISS PBLA13 START 123.3
HIERARCH ESO ISS PBLA13 END 124.0
HIERARCH ESO ISS PBL14 START 19.681
HIERARCH ESO ISS PBL14 END 19.617
HIERARCH ESO ISS PBLA14 START 148.714
HIERARCH ESO ISS PBLA14 END 149.397
HIERARCH ESO ISS PBL23 START 43.747
HIERARCH ESO ISS PBL23 END 43.333
HIERARCH ESO ISS PBLA23 START 72.9
HIERARCH ESO ISS PBLA23 END 73.1
HIERARCH ESO ISS PBL24 START 59.053
HIERARCH ESO ISS PBL24 END 58.859
HIERARCH ESO ISS PBLA24 START 328.698
HIERARCH ESO ISS PBLA24 END 329.381
HIERARCH ESO ISS PBL34 START 81.657
HIERARCH ESO ISS PBL34 END 80.941
HIERARCH ESO ISS PBLA34 START 297.41
HIERARCH ESO ISS PBLA34 END 298.045
HIERARCH ESO ISS AMBI TAU0 START 0.002687
HIERARCH ESO ISS AMBI TAU0 END 0.002687
HIERARCH ESO ISS AMBI TEMP 12.52
HIERARCH ESO ISS AMBI FWHM START 1.31
HIERARCH ESO ISS AMBI FWHM END 1.31