Exposure
ID
GRAVI.2025-06-22T03:21:51.881_1
Header ID
GRAVI.2025-06-22T03:21:51.881
Date updated
2025-06-22 03:30:52 UTC+0000
Release date
2025-06-22 03:21:51 UTC+0000
UTC Start
2025-06-22 03:21:51.881
UTC End
2025-06-22 03:24:31.881
MJD Start
60848.14018381
MJD End
60848.142035661855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002602
Ambient temperature (°C)
12.14
Seeing (arcsec)
0.53
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 67.2660 67.3970 265.8000 266.1000
K0-D0 95.1280 95.2520 245.1000 245.5000
K0-J3 55.7620 55.8170 328.1170 328.3900
G2-D0 39.9820 39.9850 208.7000 209.1000
G2-J3 64.4540 64.4700 35.7180 36.1010
D0-J3 104.2520 104.2700 33.0350 33.4130
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 60848.14018381
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 67.266
HIERARCH ESO ISS PBL12 END 67.397
HIERARCH ESO ISS PBLA12 START 265.8
HIERARCH ESO ISS PBLA12 END 266.1
HIERARCH ESO ISS PBL13 START 95.128
HIERARCH ESO ISS PBL13 END 95.252
HIERARCH ESO ISS PBLA13 START 245.1
HIERARCH ESO ISS PBLA13 END 245.5
HIERARCH ESO ISS PBL14 START 55.762
HIERARCH ESO ISS PBL14 END 55.817
HIERARCH ESO ISS PBLA14 START 328.117
HIERARCH ESO ISS PBLA14 END 328.39
HIERARCH ESO ISS PBL23 START 39.982
HIERARCH ESO ISS PBL23 END 39.985
HIERARCH ESO ISS PBLA23 START 208.7
HIERARCH ESO ISS PBLA23 END 209.1
HIERARCH ESO ISS PBL24 START 64.454
HIERARCH ESO ISS PBL24 END 64.47
HIERARCH ESO ISS PBLA24 START 35.718
HIERARCH ESO ISS PBLA24 END 36.101
HIERARCH ESO ISS PBL34 START 104.252
HIERARCH ESO ISS PBL34 END 104.27
HIERARCH ESO ISS PBLA34 START 33.035
HIERARCH ESO ISS PBLA34 END 33.413
HIERARCH ESO ISS AMBI TAU0 START 0.00272
HIERARCH ESO ISS AMBI TAU0 END 0.002484
HIERARCH ESO ISS AMBI TEMP 12.14
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.56