Exposure
ID
GRAVI.2025-07-14T06:07:04.363_1
Header ID
GRAVI.2025-07-14T06:07:04.363
Date updated
2025-07-14 06:15:50 UTC+0000
Release date
2025-07-14 06:07:04 UTC+0000
UTC Start
2025-07-14 06:07:04.363
UTC End
2025-07-14 06:09:44.363
MJD Start
60870.25491161
MJD End
60870.25676346185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002687
Ambient temperature (°C)
12.41
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 77.8770 77.6290 151.0000 151.7000
A0-J2 96.3810 95.5980 125.6000 126.3000
A0-C1 19.4670 19.4050 151.0330 151.7350
G1-J2 42.3350 41.9040 73.6000 73.8000
G1-C1 58.4100 58.2240 331.0170 331.7200
J2-C1 79.2370 78.5100 299.5860 300.2570
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 60870.25491161
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 77.877
HIERARCH ESO ISS PBL12 END 77.629
HIERARCH ESO ISS PBLA12 START 151.0
HIERARCH ESO ISS PBLA12 END 151.7
HIERARCH ESO ISS PBL13 START 96.381
HIERARCH ESO ISS PBL13 END 95.598
HIERARCH ESO ISS PBLA13 START 125.6
HIERARCH ESO ISS PBLA13 END 126.3
HIERARCH ESO ISS PBL14 START 19.467
HIERARCH ESO ISS PBL14 END 19.405
HIERARCH ESO ISS PBLA14 START 151.033
HIERARCH ESO ISS PBLA14 END 151.735
HIERARCH ESO ISS PBL23 START 42.335
HIERARCH ESO ISS PBL23 END 41.904
HIERARCH ESO ISS PBLA23 START 73.6
HIERARCH ESO ISS PBLA23 END 73.8
HIERARCH ESO ISS PBL24 START 58.41
HIERARCH ESO ISS PBL24 END 58.224
HIERARCH ESO ISS PBLA24 START 331.017
HIERARCH ESO ISS PBLA24 END 331.72
HIERARCH ESO ISS PBL34 START 79.237
HIERARCH ESO ISS PBL34 END 78.51
HIERARCH ESO ISS PBLA34 START 299.586
HIERARCH ESO ISS PBLA34 END 300.257
HIERARCH ESO ISS AMBI TAU0 START 0.002687
HIERARCH ESO ISS AMBI TAU0 END 0.002687
HIERARCH ESO ISS AMBI TEMP 12.41
HIERARCH ESO ISS AMBI FWHM START 1.31
HIERARCH ESO ISS AMBI FWHM END 1.31