Exposure
ID
GRAVI.2025-07-24T05:09:37.609_1
Header ID
GRAVI.2025-07-24T05:09:37.609
Date updated
2025-07-24 05:20:49 UTC+0000
Release date
2025-07-24 05:09:37 UTC+0000
UTC Start
2025-07-24 05:09:37.609
UTC End
2025-07-24 05:12:17.609
MJD Start
60880.21501862
MJD End
60880.21687047186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0047635
Ambient temperature (°C)
12.7
Seeing (arcsec)
0.33999999999999997
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 79.4630 79.1990 146.8000 147.5000
A0-J2 101.1450 100.3770 121.5000 122.2000
A0-C1 19.8630 19.7970 146.8570 147.5200
G1-J2 44.8670 44.4690 72.3000 72.5000
G1-C1 59.5990 59.4010 326.8390 327.5020
J2-C1 83.6240 82.9200 295.7070 296.3110
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 60880.21501862
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 79.463
HIERARCH ESO ISS PBL12 END 79.199
HIERARCH ESO ISS PBLA12 START 146.8
HIERARCH ESO ISS PBLA12 END 147.5
HIERARCH ESO ISS PBL13 START 101.145
HIERARCH ESO ISS PBL13 END 100.377
HIERARCH ESO ISS PBLA13 START 121.5
HIERARCH ESO ISS PBLA13 END 122.2
HIERARCH ESO ISS PBL14 START 19.863
HIERARCH ESO ISS PBL14 END 19.797
HIERARCH ESO ISS PBLA14 START 146.857
HIERARCH ESO ISS PBLA14 END 147.52
HIERARCH ESO ISS PBL23 START 44.867
HIERARCH ESO ISS PBL23 END 44.469
HIERARCH ESO ISS PBLA23 START 72.3
HIERARCH ESO ISS PBLA23 END 72.5
HIERARCH ESO ISS PBL24 START 59.599
HIERARCH ESO ISS PBL24 END 59.401
HIERARCH ESO ISS PBLA24 START 326.839
HIERARCH ESO ISS PBLA24 END 327.502
HIERARCH ESO ISS PBL34 START 83.624
HIERARCH ESO ISS PBL34 END 82.92
HIERARCH ESO ISS PBLA34 START 295.707
HIERARCH ESO ISS PBLA34 END 296.311
HIERARCH ESO ISS AMBI TAU0 START 0.00445
HIERARCH ESO ISS AMBI TAU0 END 0.005077
HIERARCH ESO ISS AMBI TEMP 12.7
HIERARCH ESO ISS AMBI FWHM START 0.36
HIERARCH ESO ISS AMBI FWHM END 0.32