Exposure
ID
GRAVI.2025-07-24T05:12:52.617_1
Header ID
GRAVI.2025-07-24T05:12:52.617
Date updated
2025-07-24 05:20:49 UTC+0000
Release date
2025-07-24 05:12:52 UTC+0000
UTC Start
2025-07-24 05:12:52.617
UTC End
2025-07-24 05:15:32.617
MJD Start
60880.21727566
MJD End
60880.21912751185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.005077
Ambient temperature (°C)
12.69
Seeing (arcsec)
0.32
Observation
ID
68947
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
51299
Name
HD157919
RA
261.836189
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 79.1730 78.9110 147.6000 148.2000
A0-J2 100.3030 99.5300 122.2000 122.9000
A0-C1 19.7910 19.7260 147.5850 148.2550
G1-J2 44.4300 44.0260 72.6000 72.8000
G1-C1 59.3820 59.1860 327.5670 328.2380
J2-C1 82.8520 82.1430 296.3700 296.9850
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 60880.21727566
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME d Oph
HIERARCH ESO INS SOBJ NAME HD157919
RA 261.836189
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 79.173
HIERARCH ESO ISS PBL12 END 78.911
HIERARCH ESO ISS PBLA12 START 147.6
HIERARCH ESO ISS PBLA12 END 148.2
HIERARCH ESO ISS PBL13 START 100.303
HIERARCH ESO ISS PBL13 END 99.53
HIERARCH ESO ISS PBLA13 START 122.2
HIERARCH ESO ISS PBLA13 END 122.9
HIERARCH ESO ISS PBL14 START 19.791
HIERARCH ESO ISS PBL14 END 19.726
HIERARCH ESO ISS PBLA14 START 147.585
HIERARCH ESO ISS PBLA14 END 148.255
HIERARCH ESO ISS PBL23 START 44.43
HIERARCH ESO ISS PBL23 END 44.026
HIERARCH ESO ISS PBLA23 START 72.6
HIERARCH ESO ISS PBLA23 END 72.8
HIERARCH ESO ISS PBL24 START 59.382
HIERARCH ESO ISS PBL24 END 59.186
HIERARCH ESO ISS PBLA24 START 327.567
HIERARCH ESO ISS PBLA24 END 328.238
HIERARCH ESO ISS PBL34 START 82.852
HIERARCH ESO ISS PBL34 END 82.143
HIERARCH ESO ISS PBLA34 START 296.37
HIERARCH ESO ISS PBLA34 END 296.985
HIERARCH ESO ISS AMBI TAU0 START 0.005077
HIERARCH ESO ISS AMBI TAU0 END 0.005077
HIERARCH ESO ISS AMBI TEMP 12.69
HIERARCH ESO ISS AMBI FWHM START 0.32
HIERARCH ESO ISS AMBI FWHM END 0.32