Exposure
ID
GRAVI.2025-06-23T02:52:48.476_1
Header ID
GRAVI.2025-06-23T02:52:48.476
Date updated
2025-06-23 03:05:48 UTC+0000
Release date
2025-06-23 02:52:48 UTC+0000
UTC Start
2025-06-23 02:52:48.476
UTC End
2025-06-23 02:55:28.476
MJD Start
60849.12000551
MJD End
60849.12185736185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003663
Ambient temperature (°C)
11.47
Seeing (arcsec)
0.57
Observation
ID
68167
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
50672
Name
HD157919
RA
261.838756
DEC
-29.86782
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 65.8190 66.0190 262.5000 262.9000
K0-D0 93.6990 93.9000 241.5000 242.0000
K0-J3 55.1940 55.2710 325.8790 326.1280
G2-D0 39.9170 39.9280 205.4000 205.8000
G2-J3 64.2230 64.2580 32.2710 32.6870
D0-J3 103.9620 104.0070 29.6320 30.0410
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 60849.12000551
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME d Oph
HIERARCH ESO INS SOBJ NAME HD157919
RA 261.838756
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 K0
HIERARCH ESO ISS CONF STATION2 G2
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 65.819
HIERARCH ESO ISS PBL12 END 66.019
HIERARCH ESO ISS PBLA12 START 262.5
HIERARCH ESO ISS PBLA12 END 262.9
HIERARCH ESO ISS PBL13 START 93.699
HIERARCH ESO ISS PBL13 END 93.9
HIERARCH ESO ISS PBLA13 START 241.5
HIERARCH ESO ISS PBLA13 END 242.0
HIERARCH ESO ISS PBL14 START 55.194
HIERARCH ESO ISS PBL14 END 55.271
HIERARCH ESO ISS PBLA14 START 325.879
HIERARCH ESO ISS PBLA14 END 326.128
HIERARCH ESO ISS PBL23 START 39.917
HIERARCH ESO ISS PBL23 END 39.928
HIERARCH ESO ISS PBLA23 START 205.4
HIERARCH ESO ISS PBLA23 END 205.8
HIERARCH ESO ISS PBL24 START 64.223
HIERARCH ESO ISS PBL24 END 64.258
HIERARCH ESO ISS PBLA24 START 32.271
HIERARCH ESO ISS PBLA24 END 32.687
HIERARCH ESO ISS PBL34 START 103.962
HIERARCH ESO ISS PBL34 END 104.007
HIERARCH ESO ISS PBLA34 START 29.632
HIERARCH ESO ISS PBLA34 END 30.041
HIERARCH ESO ISS AMBI TAU0 START 0.003928
HIERARCH ESO ISS AMBI TAU0 END 0.003398
HIERARCH ESO ISS AMBI TEMP 11.47
HIERARCH ESO ISS AMBI FWHM START 0.57
HIERARCH ESO ISS AMBI FWHM END 0.57